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Cheap flights from Calgary to Seattle from C$ 188

YYC — SEA
12 Oct — 19 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to Seattle/Tacoma Intl are usually found in November or January, booked 56 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Calgary to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to Seattle

Sat 3/108:45 a.m. -
Nonstop1h 55m
Wed 7/1010:30 a.m. -
Nonstop1h 40m
Deal found 11/9C$ 306
Thu 8/108:45 a.m. -
Nonstop1h 55m
Sun 11/105:50 a.m. -
1 stop4h 59m
Deal found 10/9C$ 312
Thu 24/95:50 p.m. -
Nonstop1h 55m
Sat 26/97:35 p.m. -
Nonstop1h 40m
Deal found 10/9C$ 313
Fri 11/121:45 p.m. -
Nonstop0h 55m
Mon 14/125:57 p.m. -
Nonstop2h 30m
Deal found 7/9C$ 316
Sat 24/102:05 p.m. -
1 stop5h 27m
Sat 31/107:05 p.m. -
1 stop4h 44m
Deal found 9/9C$ 317
Thu 24/92:05 p.m. -
1 stop5h 27m
Sat 26/97:15 p.m. -
1 stop5h 24m
Deal found 8/9C$ 319
Thu 8/106:00 a.m. -
1 stop5h 05m
Sun 11/103:00 p.m. -
1 stop4h 39m
Deal found 10/9C$ 321
Sun 8/1111:55 a.m. -
1 stop3h 42m
Mon 16/113:15 p.m. -
1 stop7h 19m
Deal found 10/9C$ 324
Sat 3/108:45 a.m. -
Nonstop1h 55m
Sat 3/107:35 p.m. -
Nonstop1h 40m
Deal found 11/9C$ 327
Fri 30/101:45 p.m. -
Nonstop1h 55m
Wed 4/112:30 p.m. -
Nonstop2h 40m
Deal found 8/9C$ 328

Find flight deals from Calgary to Seattle

Round-trip from

C$ 306

One-way from

C$ 188

Popular in

August

Cheapest in

November

Average price

C$ 396

Good round-trip deal

C$ 588 or less

Good one-way deal

C$ 272 or less
WestJet
  • WestJet
  • 3/10-7/10
  • Nonstop
  • 3h 35m total
  • Calgary to Seattle
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WestJet
  • WestJet
  • 27/9-31/12
  • Nonstop
  • 1h 55m total
  • Calgary to Seattle
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 21 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Calgary to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Calgary to Seattle/Tacoma Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Calgary to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Fri 16/10

9:35 p.m.-10:05 a.m.

1 stop13h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 212

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Sun 15/11

7:30 p.m.-8:57 p.m.

1 stop3h 27m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 218

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Sat 21/11

4:30 p.m.-7:47 p.m.

1 stop5h 17m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 222

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Wed 23/9

6:00 a.m.-11:26 p.m.

2 stops18h 26m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 226

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Sat 3/10

1:27 p.m.-11:27 p.m.

2 stops11h 00m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 226
Quickest round-trip

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Sun 18/10

5:50 p.m.-6:45 p.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 256

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Sun 4/10

8:45 a.m.-9:40 a.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 256

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Mon 19/10

8:45 a.m.-9:40 a.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 256

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Tue 20/10

6:00 a.m.-10:05 a.m.

1 stop5h 05m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 265

CalgarySeattle

YYC Calgary - SEA Seattle/Tacoma Intl

YYCSEA

Calgary

Fri 9/10

8:45 a.m.-9:40 a.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 266

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Calgary to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Calgary with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Calgary to Seattle

How far ahead should I book a flight from Calgary to Seattle?

The best time to book flights from Calgary to Seattle is 55 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.

What is the cheapest month to book a flight from Calgary to Seattle?

Currently, November is the cheapest month in which you can book a flight from Calgary to Seattle (average of C$ 270). Flying from Calgary to Seattle in August is currently the most expensive (average of C$ 543). 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.

What is the cheapest time of day to fly from YYC to SEA?

It’s optimal to fly from Calgary to Seattle in the afternoon. By choosing this option you can save up to 72% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Calgary to Seattle?

Travelers seeking maximum savings on their Calgary to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Calgary to Seattle?

Airfare is below average for this route at the moment.

Calgary to Seattle flights typically cost between C$ 313 and C$ 554 in October.
The cheapest round-trip price found within the last 5 days was C$ 306 on WestJet (3 Oct-7 Oct).

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Calgary to Seattle, such as Alaska Airlines,Delta, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,917 reviews
Check prices

Food

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Alaska Airlines
7.9
Good
12,917 reviews
Alaska Airlines
7.9
Good
12,917 reviews
Check prices

Food

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Delta
7.8
Good
8,563 reviews
Alaska Airlines
7.9
Good
12,917 reviews
Check prices

Food

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
WestJet
7.2
Good
3,445 reviews
Alaska Airlines
7.9
Good
12,917 reviews
Check prices

Food

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Air Canada
7.1
Good
11,617 reviews
Alaska Airlines
7.9
Good
12,917 reviews
Check prices

Food

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Related info for your journey

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

    Booking a flight from Calgary (YYC) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from Calgary to Seattle. On a typical day, there are 10 flights from Calgary to Seattle/Tacoma Intl, all of which are around 0h 50m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Calgary to Seattle.

  • How popular is this Calgary to Seattle flight route?

    This flight path from Calgary to Seattle/Tacoma Intl was viewed by 1,043 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Air Canada (C$ 152), WestJet (C$ 207), and Delta (C$ 221) offers the cheapest pricing from Calgary to Seattle. Air Canada is currently priced 61% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at C$ 105. United Airlines flights start at C$ 125 while deals on Alaska Airlines start at C$ 141 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Calgary to Seattle consider choosing Japan Airlines (85%), Alaska Airlines (72%) or Horizon Air (72%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Calgary to Seattle?

    The cheapest flight price from Calgary to Seattle is C$ 248. On average you can expect to pay C$ 1,199. The most popular route, (Calgary - Seattle/Tacoma Intl), can usually be booked for C$ 309.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Calgary to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Calgary to Seattle (average of C$ 270). Flying from Calgary to Seattle in August is currently the most expensive (average of C$ 543). 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Mukilteo
Leavenworth
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Olympia
Marysville
Federal Way
Kirkland

Browse thousands of different options on Cheapflights for your next trip

Fly from Calgary to Seattle on these airlines

WestJet flights from Calgary to Seattle/Tacoma Intl
Air Canada flights from Calgary to Seattle/Tacoma Intl
Alaska Airlines flights from Calgary to Seattle/Tacoma Intl

Top 4 airlines flying from Calgary to Seattle

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 152AverageC$ 350FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 201AverageC$ 386FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 221AverageC$ 556FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 292AverageC$ 553FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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

When you search for this flight from Calgary to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Calgary to Seattle.

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Yes, we can. To see specific flights from Calgary to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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