Cheap flights from Seattle to Denver International

Round-trip
Economy
Seattle (SEA)
Denver (DEN)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Seattle to Denver International are usually found in January or April, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

How to find the cheapest flight from
Seattle (SEA) to Denver International (DEN)

SEA - DEN
Price
C$ 155 - C$ 271
DEN
Temperature
7 - 32 °C
DEN
Rainfall
12 - 69 mm

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

January

Best time to find cheap flights, 22% potential price drop

Average price

C$ 174

Average for round-trip flights in March 2021

Round-trip from

C$ 155

From Seattle to Denver International

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Denver International?

Travellers have found that booking a Tuesday departure is the best way to save up to 15% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save on the cost of your flight from Seattle to Denver International, book at least 48 days before your planned departure. Booking around this time can save you about 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 708 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 842.

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

August is one of the best times of the year to fly to Denver International from Seattle. Prices for August average C$ 626 per person but you can even find prices for as low as C$ 373. The most expensive prices can be found in the month of February. Opting for a August flight can save you 8% on your journey compared to booking in August

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

A simple way to save on the total cost of your ticket is to fly from Seattle to Denver International at noon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the morning.

Cheap flights from Seattle to Denver International in March, April 2021

7 Apr - 8 Apr
C$ 48pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
7 Apr - 8 Apr
C$ 50pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
26 Mar - 26 Mar
C$ 117pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl

Seattle to Denver International 2021 flight deals

7 Apr - 8 Apr
C$ 48pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
7 Apr - 8 Apr
C$ 50pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
26 Mar - 26 Mar
C$ 117pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl

Direct flights to Denver International from Seattle

7 Apr - 8 Apr
C$ 48pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
7 Apr - 8 Apr
C$ 50pp
SEA
Seattle/Tacoma Intl
Frontier
Direct
DEN
Denver Intl
DEN
Denver Intl
Frontier
Direct
SEA
Seattle/Tacoma Intl
26 Mar - 26 Mar
C$ 117pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Denver International

6 Mar - 9 Mar
C$ 124pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
11 Mar - 15 Mar
C$ 129pp
SEA
Seattle/Tacoma Intl
Delta
Direct
DEN
Denver Intl
DEN
Denver Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
11 Mar - 14 Mar
C$ 162pp
SEA
Seattle/Tacoma Intl
Delta
Direct
DEN
Denver Intl
DEN
Denver Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

One-way flights to Denver International from Seattle

5:39 a.m. - 5:45 a.m.
United Airlines
3 stops
23h 06m
SEA - DEN
United Airlines
C$ 256
United
3:55 a.m. - 1:45 p.m.
Alaska Airlines
2 stops
8h 50m
SEA - DEN
Alaska Airlines
C$ 323
CheapFlights
8:35 p.m. - 5:49 a.m.
Delta
1 stop
8h 14m
SEA - DEN
Delta
C$ 444
Delta

Related info for your journey

Flight FAQs

From Seattle to Denver International

Can I find flights from Seattle to Denver International for under C$ 127 on Cheapflights?

Yes, there are multiple flights from Seattle to Denver International for under C$ 127. The cheapest flight booked recently is on Frontier for just C$ 48, but on average you can expect to pay C$ 167.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Denver Intl to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travellers booking flights from Seattle/Tacoma Intl to Denver Intl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Denver Intl have flexible cancellations due to COVID-19?

Frontier, Delta, and Alaska Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are there direct flights from Seattle to Denver International for under C$ 127 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to Denver International under C$ 127. A good price for a direct flight from Seattle to Denver International is less than C$ 194.

Are there last-minute flights available from Seattle to Denver International for under C$ 127?

There are currently 16+ open flights from Seattle to Denver International within the next 7 days for less than C$ 127.

What days are direct flights available from Seattle to Denver?

Direct flights are available for this route on the following days: Monday, Tuesday, Wednesday, Friday, Saturday.

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

On average 8 flights depart from Seattle/Tacoma Intl to Denver Intl per day.
Early Morning (Midnight to 6am) - 38% of flight departures
Morning (6am - Noon) - 50% of flight departures
Afternoon (Noon - 6pm) - 13% of flight departures

Does it rain more in Seattle or Denver?

When travelling, we recommend packing in preparation to handle common weather conditions. The rainfall in Seattle is typically greater than that of Denver. We can gather that this will continue over the next 22 days.

Is Seattle weather warmer or cooler than Denver?

You can imagine temperatures to be in the 32 °C range in July. The weather in Denver is generally hotter than Seattle's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Seattle to Denver International?

There are many flights that can get you from Seattle to Denver International in 2h 33m. Fly via Alaska Airlines, Frontier, or Delta to get the fastest option. Seattle and Denver International are separated by a distance of 1654 km. Generally, flights for this route are direct.

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

Cheapflights users have booked flights from Seattle to Denver International round-trip from C$ 49. Other airlines that can offer you cheap pricing are Alaska Airlines, from C$ 118, and Delta, from C$ 129. You may be able to fly from Seattle to Denver International for 75% less than the average price by searching for these airlines.

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

For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 63. Users have also found prices from C$ 116 and C$ 198 on Delta and Alaska Airlines, respectively.

Related searches

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Destination information for Denver International

Flight duration
2h 53m
Average temperature for March in Denver International
13.0 °C
Avg rainfall for March in Denver International
24.0 mm

Airports servicing Seattle

Airports servicing Denver

Top 4 airlines flying from Seattle to Denver International

Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
C$ 49 C$ 137 No cancel fee 62%
Search Frontier flights
Alaska Airlines
C$ 68 C$ 159 No cancel fee 75%
Search Alaska Airlines flights
Delta
C$ 74 C$ 167 No cancel fee N/A
Search Delta flights
United Airlines
C$ 117 C$ 226 No cancel fee 69%
Search United Airlines flights

Hourly flight availability from Seattle to Denver International

Afternoon Noon to 6 PM 50% of flight departures
Morning 6 AM to noon 33% of flight departures
Evening 6 PM to midnight 14% of flight departures
Early morning Midnight to 6 AM 3% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Denver International
Sunday
21 daily flights
Monday
19 daily flights
Tuesday
9 daily flights
Wednesday
13 daily flights
Thursday
15 daily flights
Friday
19 daily flights
Saturday
10 daily flights
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