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Cheap flights from Calgary to Seattle from £109

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — SEA
1 Jul — 8 Jul1
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 Tuesday or Wednesday and return on a Monday

Cheap flight deals from Calgary to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to Seattle
Explore the most affordable flight options available from Calgary to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 June 2026.

Thu 16/706:50
YYC
-
SEA
1 stop4h 17m
Air Canada
Mon 20/710:45
SEA
-
YYC
1 stop6h 25m
Air Canada
Deal found 30/5£181
Thu 16/719:55
YYC
-
SEA
Nonstop2h 05m
WestJet
Mon 20/707:00
SEA
-
YYC
Nonstop1h 50m
WestJet
Deal found 30/5£215
Thu 16/719:55
YYC
-
SEA
Nonstop2h 05m
Multiple Airlines
Mon 20/705:45
SEA
-
YYC
1 stop6h 25m
Multiple Airlines
Deal found 30/5£216
Sat 31/1015:00
YYC
-
SEA
1 stop4h 27m
Delta
Tue 3/1115:10
SEA
-
YYC
Nonstop2h 40m
Delta
Deal found 30/5£271
Fri 23/1017:50
YYC
-
SEA
Nonstop1h 55m
Delta
Tue 27/1007:20
SEA
-
YYC
1 stop6h 00m
Delta
Deal found 28/5£279
Fri 7/808:45
YYC
-
SEA
Nonstop1h 55m
Delta
Mon 10/815:34
SEA
-
YYC
1 stop6h 21m
Delta
Deal found 28/5£288
Tue 18/815:15
YYC
-
SEA
1 stop4h 39m
Delta
Sat 22/810:30
SEA
-
YYC
Nonstop1h 40m
Delta
Deal found 31/5£288
Thu 9/719:55
YYC
-
SEA
Nonstop2h 05m
Delta
Sun 12/707:00
SEA
-
YYC
Nonstop1h 50m
Delta
Deal found 30/5£289
Sat 31/1014:00
YYC
-
SEA
2 stops10h 21m
United Airlines
Tue 3/1105:07
SEA
-
YYC
1 stop15h 31m
United Airlines
Deal found 30/5£307

Find flight deals from Calgary to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to Seattle (SEA). 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 1 June 2026.

Round-trip from

£181

One-way from

£109

Popular in

May

Cheapest in

November

Average price

£220
Air Canada
  • Air Canada
  • 16/7-20/7
  • 2 total stops
  • 10h 42m total
  • Calgary to Seattle
Search Deals
Air Canada
  • Air Canada
  • 21/8
  • 1 total stop
  • 4h 43m total
  • Calgary to Seattle
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Calgary to Seattle 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 858,174 searches. Data last updated 1 June 2026.
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 return flight

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Mon 2/11

13:25-13:20

Nonstop0h 55m

Seattle/Tacoma Intl

Wed 4/11

07:20-14:20

1 stop6h 00m

£271

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 7/8

08:45-09:40

Nonstop1h 55m

Seattle/Tacoma Intl

Mon 10/8

17:32-22:55

1 stop4h 23m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sun 6/9

08:45-09:40

Nonstop1h 55m

Seattle/Tacoma Intl

Tue 8/9

19:35-00:44

1 stop4h 09m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 3/9

17:50-18:45

Nonstop1h 55m

Seattle/Tacoma Intl

Sun 6/9

17:32-22:55

1 stop4h 23m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 19/8

13:00-16:52

1 stop4h 52m

Seattle/Tacoma Intl

Mon 24/8

07:00-09:50

Nonstop1h 50m

£288
Fastest return journey

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 24/7

19:55-21:00

Nonstop2h 05m

Seattle/Tacoma Intl

Sun 26/7

09:20-14:15

1 stop3h 55m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Tue 25/8

17:00-20:50

1 stop4h 50m

Seattle/Tacoma Intl

Fri 28/8

19:35-22:15

Nonstop1h 40m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 1/7

13:00-16:57

1 stop4h 57m

Seattle/Tacoma Intl

Fri 3/7

15:22-22:55

1 stop6h 33m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 3/7

17:50-18:45

Nonstop1h 55m

Seattle/Tacoma Intl

Mon 6/7

15:22-21:00

1 stop4h 38m

£288

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 1/10

17:50-18:45

Nonstop1h 55m

Seattle/Tacoma Intl

Sat 3/10

15:35-22:55

1 stop6h 20m

£288

Flights are sorted by cheapest return flights first.

Deals found on 30/5

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

To ensure you get the cheapest price possible for a flight from Calgary to Seattle, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £146). Flying from Calgary to Seattle in May is currently the most expensive (average of £259). 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?

Find hourly flight availability from Calgary to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 June 2026.

It’s typically best to fly out from Calgary to Seattle in the evening. Doing so could potentially save you 76% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from Calgary to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 1 June 2026.
Read through reviews of airlines operating flights from Calgary to Seattle, such as WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,350 reviews
Check prices

Comfort

7.0

Boarding

7.4

Entertainment

6.1

Crew

7.9

Food

6.2

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying
WestJet
7.2
Good
3,350 reviews
WestJet
7.2
Good
3,350 reviews
Check prices

Comfort

7.0

Boarding

7.4

Entertainment

6.1

Crew

7.9

Food

6.2

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying

Related info for your journey

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

  • How popular is this Calgary to Seattle flight route?

    Flights from Calgary to Seattle/Tacoma Intl have been viewed 13 times in the past calendar month.

  • How long is the flight from Calgary to Seattle?

    For as low as £271, Delta can have you in Seattle from Calgary in 55m. The distance between Calgary and Seattle is about 451 mi. All flights are typically direct.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Calgary to Seattle on time: American Airlines (100%), Qatar Airways (100%), China Airlines (100%).

  • 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 holiday 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 £146). Flying from Calgary to Seattle in May is currently the most expensive (average of £259). 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
Tacoma
Federal Way
SeaTac

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

Certainly. Search results for flights to Seattle from Calgary shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Of course! You can now track prices for flights from Calgary to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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