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Cheap flights from Seattle to Denver from C$ 99

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — DEN
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

The best prices from Seattle/Tacoma Intl to Denver Intl are usually found in January or February, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Seattle to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 May 2024.

Popular in

June

Cheapest in

January

Round-trip from

C$ 538

One-way from

C$ 225
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 31% potential price drop
Search Deals
From Seattle/Tacoma Intl to Denver Intl
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One-way flight from Seattle/Tacoma Intl to Denver Intl
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What is the cheapest day to fly round-trip from Seattle to Denver?

Saturday flights are found to be more expensive to fly from Seattle to Denver. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Denver.

How far in advance should I book a flight from Seattle to Denver?

Users have found that booking a flight from Seattle to Denver at least 35 days early can save you up to 70% on average compared to booking a flight this week. If booking 35 days before your flight isn’t an option for you, users have found flights from Seattle to Denver for as little as C$ 208 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 419 for flights departing within the next 3 days.

What is the cheapest month to fly from Seattle to Denver?

January can be a great time to fly to Denver from Seattle with a flight ticket averaging about C$ 253. Cheapflights users have found deals in the month of January for as cheap as C$ 61. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Seattle to Denver (SEA - DEN)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 32% on flights from Seattle to Denver by exploring options for tickets in the evening.

Cheap Frontier flights from Seattle to Denver

Explore cheap flight options specifically provided by Frontier for the route between Seattle and Denver. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
Take a look at some of the lowest-priced Frontier flights heading from Seattle to Denver. It's recommended that users confirm their flight details before booking.
Sat 31/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 18/5C$ 99
Sat 24/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 28/86:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 101
Thu 5/99:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 9/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 120
Fri 25/109:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 28/106:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 146
Sat 24/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 28/89:40 a.m.DEN - SEA
1 stop7h 51mFrontier
Deal found 19/5C$ 210
Sat 31/810:05 p.m.SEA - DEN
1 stop9h 38mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 18/5C$ 215
Thu 5/99:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 9/91:39 p.m.DEN - SEA
1 stop8h 09mFrontier
Deal found 19/5C$ 233
Thu 25/78:34 p.m.SEA - DEN
Nonstop2h 47mFrontier
Mon 29/72:05 p.m.DEN - SEA
Nonstop3h 00mFrontier
Deal found 19/5C$ 259
Fri 24/510:24 p.m.SEA - DEN
Nonstop2h 53mFrontier
Sun 26/56:35 p.m.DEN - SEA
Nonstop3h 04mFrontier
Deal found 18/5C$ 312

Cheap Delta flights from Seattle to Denver

Explore cheap flight options specifically provided by Delta for the route between Seattle and Denver. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
Some of the lowest-priced Delta flights we've found at this time heading from Seattle to Denver. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 25/67:30 a.m.SEA - DEN
Nonstop2h 50mDelta
Tue 25/67:55 p.m.DEN - SEA
Nonstop3h 06mDelta
Deal found 19/5C$ 241
Tue 12/117:45 p.m.SEA - DEN
Nonstop2h 38mDelta
Sat 30/116:05 a.m.DEN - SEA
Nonstop3h 10mDelta
Deal found 19/5C$ 255
Tue 12/115:40 a.m.SEA - DEN
1 stop8h 30mDelta
Sat 30/117:50 p.m.DEN - SEA
Nonstop3h 04mDelta
Deal found 19/5C$ 342
Fri 7/67:30 a.m.SEA - DEN
Nonstop2h 50mDelta
Fri 7/67:55 p.m.DEN - SEA
Nonstop3h 06mDelta
Deal found 19/5C$ 350
Thu 19/97:45 p.m.SEA - DEN
Nonstop2h 38mDelta
Sat 23/115:45 p.m.DEN - SEA
1 stop5h 29mDelta
Deal found 19/5C$ 357
Wed 13/115:40 a.m.SEA - DEN
1 stop12h 32mDelta
Sun 1/126:05 a.m.DEN - SEA
Nonstop3h 10mDelta
Deal found 19/5C$ 423
Sat 29/65:30 a.m.SEA - DEN
1 stop6h 00mDelta
Sat 29/67:55 p.m.DEN - SEA
Nonstop3h 06mDelta
Deal found 19/5C$ 438
Thu 19/95:40 a.m.SEA - DEN
1 stop4h 58mDelta
Sat 23/115:45 p.m.DEN - SEA
1 stop7h 14mDelta
Deal found 19/5C$ 457
Mon 1/77:30 a.m.SEA - DEN
Nonstop2h 50mDelta
Tue 9/77:55 p.m.DEN - SEA
Nonstop3h 01mDelta
Deal found 19/5C$ 465

Cheap Seattle to Denver flights in May & June 2024

Find cheap flight options from Seattle to Denver specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 406,380 searches. Prices were last updated on 20 May 2024.
These are some of the most attractive deals on flights from Seattle to Denver in 2024. More deals are always being added, so be sure to check back regularly.
Tue 25/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Sat 29/69:59 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 241
Sun 23/66:00 a.m.SEA - DEN
Nonstop2h 44mAlaska Airlines
Wed 26/69:45 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 248
Mon 24/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Thu 27/69:45 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 255
Sat 29/65:27 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Wed 3/711:58 a.m.DEN - SEA
1 stop5h 40mAlaska Airlines
Deal found 19/5C$ 260
Sat 22/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Sat 29/69:59 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 18/5C$ 268
Mon 24/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Sun 30/69:45 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 275
Wed 5/611:20 a.m.SEA - DEN
Nonstop2h 47mAlaska Airlines
Wed 5/66:56 p.m.DEN - SEA
Nonstop2h 54mAlaska Airlines
Deal found 19/5C$ 287
Fri 28/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Sun 30/69:45 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 295
Fri 24/510:24 p.m.SEA - DEN
Nonstop2h 53mFrontier
Sun 26/56:35 p.m.DEN - SEA
Nonstop3h 04mFrontier
Deal found 18/5C$ 312

Seattle to Denver 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Denver in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
These are some of the most attractive deals on flights from Seattle to Denver in 2024. More deals are always being added, so be sure to check back regularly.
Sat 31/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 17/5C$ 99
Sat 24/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 28/86:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 101
Thu 5/99:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 9/97:08 p.m.DEN - SEA
Nonstop3h 03mFrontier
Deal found 19/5C$ 120
Fri 25/109:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 28/106:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 146
Sat 24/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 28/811:30 a.m.DEN - SEA
1 stop8h 31mFrontier
Deal found 18/5C$ 210
Sat 31/810:05 p.m.SEA - DEN
1 stop9h 38mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 18/5C$ 215
Sat 31/810:05 p.m.SEA - DEN
1 stop9h 38mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 17/5C$ 216
Thu 5/99:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 9/91:39 p.m.DEN - SEA
1 stop8h 09mFrontier
Deal found 19/5C$ 233
Tue 25/67:30 a.m.SEA - DEN
Nonstop2h 50mDelta
Tue 25/67:55 p.m.DEN - SEA
Nonstop3h 06mDelta
Deal found 19/5C$ 241

Direct flights to Denver from Seattle

Discover non-stop flight options from Seattle to Denver. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
Take a look at some of the direct flights travelling from Seattle to Denver in the near future. Users seeking other options on flights from Seattle to Denver should update the search form at the top of the page.
Sat 31/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 4/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 18/5C$ 99
Sat 24/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 28/86:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 101
Thu 5/99:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 9/96:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 120
Sat 31/810:08 p.m.SEA - DEN
Nonstop2h 43mFrontier
Wed 4/97:08 p.m.DEN - SEA
Nonstop3h 03mFrontier
Deal found 19/5C$ 140
Fri 25/109:37 a.m.SEA - DEN
Nonstop2h 48mFrontier
Mon 28/106:35 a.m.DEN - SEA
Nonstop3h 02mFrontier
Deal found 19/5C$ 146
Tue 25/67:55 p.m.SEA - DEN
Nonstop2h 44mDelta
Tue 2/76:05 a.m.DEN - SEA
Nonstop3h 00mDelta
Deal found 19/5C$ 241
Mon 24/68:18 p.m.SEA - DEN
Nonstop2h 40mAlaska Airlines
Sat 29/69:59 p.m.DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 19/5C$ 248
Tue 12/111:45 p.m.SEA - DEN
Nonstop2h 44mDelta
Wed 27/117:50 p.m.DEN - SEA
Nonstop3h 04mDelta
Deal found 19/5C$ 255
Thu 25/78:34 p.m.SEA - DEN
Nonstop2h 47mFrontier
Mon 29/72:05 p.m.DEN - SEA
Nonstop3h 00mFrontier
Deal found 19/5C$ 259

Seattle to Denver flights leaving soon

Find last-minute flight options from Seattle to Denver for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
Users seeking a last-minute flight from Seattle to Denver should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
Fri 24/510:24 p.m.SEA - DEN
Nonstop2h 53mFrontier
Sun 26/56:35 p.m.DEN - SEA
Nonstop3h 04mFrontier
Deal found 18/5C$ 312
Fri 24/510:24 p.m.SEA - DEN
Nonstop2h 53mMultiple Airlines
Sun 26/55:30 p.m.DEN - SEA
1 stop15h 25mMultiple Airlines
Deal found 18/5C$ 391
Fri 24/59:04 p.m.SEA - DEN
1 stop19h 57mMultiple Airlines
Sun 26/55:30 p.m.DEN - SEA
1 stop15h 25mMultiple Airlines
Deal found 18/5C$ 547
Wed 29/53:30 p.m.SEA - DEN
1 stop7h 29mUnited Airlines
Mon 3/67:25 p.m.DEN - SEA
2 stops27h 50mUnited Airlines
Deal found 18/5C$ 606
Sat 25/57:35 p.m.SEA - DEN
Nonstop2h 48mDelta
Sun 26/56:15 a.m.DEN - SEA
Nonstop3h 03mDelta
Deal found 18/5C$ 636
Wed 29/511:26 a.m.SEA - DEN
1 stop4h 11mAlaska Airlines
Thu 30/55:37 p.m.DEN - SEA
2 stops15h 52mAlaska Airlines
Deal found 17/5C$ 644
Tue 28/53:30 p.m.SEA - DEN
1 stop5h 45mUnited Airlines
Sat 1/611:15 a.m.DEN - SEA
2 stops24h 25mUnited Airlines
Deal found 18/5C$ 660
Fri 24/54:25 p.m.SEA - DEN
1 stop6h 34mUnited Airlines
Mon 27/56:00 a.m.DEN - SEA
1 stop5h 40mUnited Airlines
Deal found 18/5C$ 675
Sat 25/511:42 a.m.SEA - DEN
1 stop6h 54mUnited Airlines
Mon 27/57:25 p.m.DEN - SEA
2 stops27h 50mUnited Airlines
Deal found 17/5C$ 680

One-way flights to Denver from Seattle

Search for one-way flight options from Seattle to Denver. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
If you're seeking multiple options on one-way flights from Seattle to Denver, be sure to check out these deals, which are updated often. Users needing a return flight from Seattle to Denver should utilize the search form above.
Tue 25/67:55 p.m.SEA - DEN
Nonstop2h 44mDelta
Deal found 19/5C$ 121
Sun 23/66:00 a.m.SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 19/5C$ 128
Sat 15/611:20 a.m.SEA - DEN
1 stop6h 59mAlaska Airlines
Deal found 19/5C$ 140
Fri 28/67:55 p.m.SEA - DEN
Nonstop2h 44mDelta
Deal found 19/5C$ 148
Sun 21/77:25 a.m.SEA - DEN
Nonstop2h 44mDelta
Deal found 19/5C$ 182
Tue 6/86:00 a.m.SEA - DEN
2 stops12h 19mAlaska Airlines
Deal found 19/5C$ 222
Sun 25/810:06 p.m.SEA - DEN
1 stop9h 37mFrontier
Deal found 19/5C$ 225
Sun 14/75:30 a.m.SEA - DEN
1 stop5h 39mDelta
Deal found 19/5C$ 229
Mon 19/88:50 a.m.SEA - DEN
2 stops9h 29mAlaska Airlines
Deal found 19/5C$ 263

Find flights from Seattle to Denver within your budget

Customize your flight search to find flights from Seattle to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 99 - C$ 404

Route

Depart

Return

Price

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 31/8

Nonstop2h 43m

Denver Intl

Wed 4/9

Nonstop3h 02m

C$ 99

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 24/8

Nonstop2h 43m

Denver Intl

Wed 28/8

Nonstop3h 02m

C$ 101

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 5/9

Nonstop2h 48m

Denver Intl

Mon 9/9

Nonstop3h 02m

C$ 120

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 25/10

Nonstop2h 48m

Denver Intl

Mon 28/10

Nonstop3h 02m

C$ 146

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 25/6

Nonstop2h 50m

Denver Intl

Tue 25/6

Nonstop3h 06m

C$ 241

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 24/6

Nonstop2h 40m

Denver Intl

Wed 26/6

Nonstop2h 59m

C$ 248

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 25/10

1 stop13h 30m

Denver Intl

Mon 28/10

Nonstop3h 02m

C$ 249

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 17/8

1 stop5h 32m

Denver Intl

Fri 23/8

1 stop7h 13m

C$ 355

Seattle/Tacoma IntlDenver Intl

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 5/9

1 stop6h 34m

Denver Intl

Mon 9/9

1 stop6h 04m

C$ 404

Flights are sorted by cheapest first

Deals found on 18/5

When is the best time to book a flight from Seattle to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Denver. Price data was last updated on 10 May 2024.
The best time to book flights from Seattle to Denver is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Seattle to Denver?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Denver. Price data was last updated on 19 May 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Denver flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Denver by month

Plan your trip from Seattle to Denver by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Denver is currently C$ 184 while a round-trip flight costs C$ 218. Price data was last updated on 19 May 2024.

Currently, January is the cheapest month in which you can book a flight from Seattle to Denver (average of C$ 395). Flying from Seattle to Denver in July is currently the most expensive (average of C$ 495). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

C$ 538

February

C$ 596

March

C$ 599

April

C$ 597

May

C$ 634

June

C$ 578

July

C$ 674

August

C$ 656

September

C$ 636

October

C$ 592

November

C$ 577

December

C$ 550

Temperature and rainfall in Denver by month

Plan your trip to Denver by taking into account the average temperature and rainfall totals by month.

DEN

Temperature

-1 - 23 °C

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 20 May 2024.
Peruse reviews from past customers who have flown with Frontier, Delta and Alaska Airlines from Seattle to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,166 reviews
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.0
Very good
10,635 reviews
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

United Airlines
7.4
Good
10,894 reviews
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

American Airlines
7.3
Good
14,472 reviews
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Frontier
6.3
Okay
4,055 reviews
Alaska Airlines
8.1
Very good
9,166 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Crew

8.6

Comfort

7.9

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Denver?

    Booking a flight from Seattle/Tacoma Intl (SEA) to Denver Intl (DEN) is your only option if you wish to fly from Seattle to Denver. On a typical day, there are 31 flights from Seattle/Tacoma Intl to Denver Intl, all of which are around 2h 43m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Seattle/Tacoma Intl to Denver.

  • Can I find flights from Seattle to Denver for under C$ 100 on Cheapflights?

    Yes, there are multiple flights from Seattle to Denver for under C$ 100. The cheapest flight booked recently is on Frontier for just C$ 99, but on average you can expect to pay C$ 230.

  • Are there direct flights from Seattle to Denver for under C$ 100 on Cheapflights?

    Cheapflights has 20 direct flights from Seattle to Denver under C$ 100. A good price for a direct flight from Seattle to Denver is less than C$ 293.

  • Are there last-minute flights available from Seattle to Denver for under C$ 400?

    There are currently 20+ open flights from Seattle to Denver within the next 7 days for less than C$ 400.

  • What days are direct flights available from Seattle to Denver?

    You can find direct flights on the following days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

  • How popular is this Seattle to Denver flight route?

    This flight path from Seattle/Tacoma Intl to Denver Intl was viewed by 428 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How many flights depart from Seattle to Denver on average per day?

    Per day, 55 flights depart from Seattle to Denver on average.
    Early Morning (Midnight to 6am) - 15% of flight departures
    Morning (6am - Midday) - 42% of flight departures
    Afternoon (Noon - 6pm) - 35% of flight departures
    Evening (6pm - Midnight) - 9% of flight departures

  • How long is the flight from Seattle to Denver?

    There are many flights that can get you from Seattle to Denver in 2h 40m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. There are 1654 km between Seattle and Denver. All flights are typically direct.

  • What are the cheapest airlines flying from Seattle to Denver round-trip?

    According to our current data, Frontier (C$ 99), Delta (C$ 241), and Alaska Airlines (C$ 248) offers the cheapest pricing from Seattle to Denver. Users have found that Frontier is 60% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Denver one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 121. However, be on the lookout for offers from Alaska Airlines and Frontier, as they are both options that can get you from Seattle to Denver for a low price.

  • What are the most popular airlines that fly from Seattle to Denver?

    The most popular airlines flying from Seattle to Denver are Alaska Airlines, Delta and Frontier. Something to consider prior to booking your flight.

  • What are the most reliable airlines from Seattle to Denver?

    Before booking your flight to Denver from Seattle, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), Air France (93%), WestJet( 87%).

  • What are the cheapest flights from Seattle to Denver?

    Looking for the cheapest flight from Seattle to Denver? While on average our users pay C$ 1,489, our data indicates the cheapest price to be C$ 63. The most popular route (Seattle/Tacoma Intl - Denver Intl), is priced around C$ 181.

  • What does SEA to DEN mean?

    Seattle/Tacoma Intl Airport is SEA and Denver Intl Airport is DEN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Seattle to Denver that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Denver flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Denver with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Denver flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Denver that include hotel bookings?

    Yes. In addition to deals on Seattle to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Denver.

  • Can I find deals for business class flights from Seattle to Denver?

    Yes. Cheapflights offers flight deals from Seattle to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Denver that allow pets onboard?

    Many airlines flying from Seattle to Denver offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Denver?

    Yes, you can often find last-minute deals on Seattle to Denver flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Denver flight deals updated?

    The Seattle to Denver flight deals you see on this page were last updated on 19/5.

See more FAQs

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Alternative routes for Seattle to Denver
See prices for flight routes from nearby airports that may be better suited for you.

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Top 4 airlines flying from Seattle to Denver

Discover the top 4 airlines that operate flights from Seattle to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 66AverageC$ 152FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 103AverageC$ 213FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 104AverageC$ 262FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 156AverageC$ 343FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Seattle to Denver by cabin class

Find flights from Seattle to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Seattle to Denver

Find hourly flight availability from Seattle to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 May 2024.
10%of flight departuresEarly morningMidnight to 6 am
46%of flight departuresMorning6 am to noon
18%of flight departuresAfternoonNoon to 6 pm
26%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Denver

Explore weekly flight availability from Seattle to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 May 2024.
Sunday31daily flights
Monday37daily flights
Tuesday27daily flights
Wednesday24daily flights
Thursday35daily flights
Friday36daily flights
Saturday29daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Denver?

Cheapflights helps you search for flights from Seattle to Denver via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Denver?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Denver for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Denver with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Denver with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Seattle today and book when prices fit your budget.

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