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Cheap flights from Calgary to Seattle from £87

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — SEA
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Calgary to Seattle/Tacoma Intl are usually found in March or July, booked 56 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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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 21 November 2025.

Wed 26/1106:15YYC - SEA
2 stops18h 29mUnited Airlines
Wed 3/1205:00SEA - YYC
1 stop15h 53mUnited Airlines
Deal found 21/11£153
Thu 4/1214:13YYC - SEA
2 stops10h 02mUnited Airlines
Mon 8/1208:40SEA - YYC
1 stop12h 13mUnited Airlines
Deal found 19/11£154
Fri 19/1207:50YYC - SEA
1 stop3h 32mWestJet
Fri 26/1215:10SEA - YYC
Nonstop1h 40mWestJet
Deal found 19/11£295
Fri 19/1207:15YYC - SEA
1 stop8h 16mMultiple Airlines
Fri 26/1205:50SEA - YYC
1 stop4h 30mMultiple Airlines
Deal found 19/11£311
Mon 24/1115:30YYC - SEA
1 stop10h 29mUnited Airlines
Thu 27/1110:53SEA - YYC
2 stops26h 28mUnited Airlines
Deal found 20/11£363
Sat 29/1113:25YYC - SEA
Nonstop2h 15mWestJet
Mon 1/1217:35SEA - YYC
1 stop6h 06mWestJet
Deal found 20/11£367
Thu 25/1221:35YYC - SEA
1 stop13h 47mWestJet
Fri 26/1219:45SEA - YYC
1 stop3h 56mWestJet
Deal found 20/11£368
Tue 25/1115:30YYC - SEA
1 stop9h 14mUnited Airlines
Tue 2/1217:05SEA - YYC
2 stops18h 21mUnited Airlines
Deal found 20/11£390

Cheap 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 21 November 2025.

Round-trip from

£154

One-way from

£87

Popular in

December

Cheapest in

March

Average price

£192
United Airlines
  • United Airlines
  • 4/12-8/12
  • 3 total stops
  • 22h 15m total
  • Calgary to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 3/12
  • Nonstop
  • 1h 53m total
  • Calgary to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 21 November 2025.
Use the filters below to find and compare flights from Calgary to Seattle that are best for you.

Fly from

Calgary

Fly to

Seattle

Route

Depart

Return

Price

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 4/12

14:13-23:15

2 stops10h 02m

Seattle/Tacoma Intl

Mon 8/12

08:40-21:53

1 stop12h 13m

£154

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 9/1

15:30-21:12

1 stop6h 42m

Seattle/Tacoma Intl

Sat 10/1

05:00-14:21

1 stop8h 21m

£167

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 19/3

13:25-14:19

Nonstop1h 54m

Seattle/Tacoma Intl

Mon 23/3

15:10-17:50

Nonstop1h 40m

£243

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 4/2

13:25-14:19

Nonstop1h 54m

Seattle/Tacoma Intl

Sun 15/2

15:10-17:50

Nonstop1h 40m

£243

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 19/12

07:50-10:22

1 stop3h 32m

Seattle/Tacoma Intl

Fri 26/12

15:10-17:50

Nonstop1h 40m

£295

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 19/12

07:15-14:31

1 stop8h 16m

Seattle/Tacoma Intl

Fri 26/12

05:50-11:20

1 stop4h 30m

£311

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 3/1

06:00-09:31

1 stop4h 31m

Seattle/Tacoma Intl

Sat 10/1

10:05-19:35

2 stops8h 30m

£343

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 3/1

15:00-10:23

1 stop20h 23m

Seattle/Tacoma Intl

Sat 10/1

15:20-18:14

Nonstop1h 54m

£359

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 25/12

21:35-10:22

1 stop13h 47m

Seattle/Tacoma Intl

Fri 26/12

19:45-00:41

1 stop3h 56m

£368

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Tue 9/12

19:00-19:53

Nonstop1h 53m

£87

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 19 results
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?

Use this chart to determine the optimal time to book a return flight from Calgary to Seattle. Price data was last updated on 14 November 2025.

To ensure you get the cheapest price possible for a flight from Calgary to Seattle, you should look to book at least 56 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, September is the cheapest month in which you can book a flight from Calgary to Seattle (average of £83). Flying from Calgary to Seattle in December is currently the most expensive (average of £135). 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 21 November 2025.

It’s typically best to fly out from Calgary to Seattle in the evening. Doing so could potentially save you 84% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 21 November 2025.
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
3,169 reviews
Check prices

Comfort

7.1

Entertainment

6.1

Crew

7.9

Food

6.2

Overall

7.2

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.
WestJet
7.2
Good
3,169 reviews
WestJet
7.2
Good
3,169 reviews
Check prices

Comfort

7.1

Entertainment

6.1

Crew

7.9

Food

6.2

Overall

7.2

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.

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.

  • 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 is 1 flight from Calgary to Seattle/Tacoma Intl, all of which are around 1h 52m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Calgary to Seattle.

  • 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 £243, United Airlines can have you in Seattle from Calgary in 1h 54m. The distance between Calgary and Seattle is about 451 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Calgary to Seattle round-trip?

    Cheapflights users have booked flights from Calgary to Seattle round-trip from £118. This flight start at 33% lower than the current average price 3 months from now.

  • 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: Singapore Airlines (100%), Qatar Airways (94%), Qantas Airways (92%).

  • 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, September is the cheapest month in which you can book a flight from Calgary to Seattle (average of £83). Flying from Calgary to Seattle in December is currently the most expensive (average of £135). 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
Leavenworth
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Calgary to Seattle

Discover the top airline that operate flights from Calgary to Seattle. 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 858,174 searches. Data last updated 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£118Average£215FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Calgary today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Calgary to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

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

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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