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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — SEA
20 Feb — 27 Feb1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to Seattle/Tacoma Intl are usually found in July or November, booked 67 days in advance, depart on a Tuesday or Monday 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 21 January 2026.
Tue 3/313:25
YYC
-
SEA
Nonstop1h 54m
WestJet
Tue 10/315:10
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 19/1£126
Tue 3/315:00
YYC
-
SEA
1 stop5h 16m
Air Canada
Tue 10/315:40
SEA
-
YYC
1 stop6h 04m
Air Canada
Deal found 19/1£129
Thu 5/315:30
YYC
-
SEA
1 stop10h 29m
United Airlines
Mon 9/319:35
SEA
-
YYC
1 stop15h 51m
United Airlines
Deal found 19/1£141
Tue 3/313:25
YYC
-
SEA
Nonstop1h 54m
Multiple Airlines
Tue 10/315:40
SEA
-
YYC
1 stop4h 49m
Multiple Airlines
Deal found 19/1£142
Mon 4/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Tue 19/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£144
Wed 29/419:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Wed 13/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 19/1£145
Wed 29/415:22
YYC
-
SEA
1 stop6h 35m
United Airlines
Wed 13/505:00
SEA
-
YYC
1 stop6h 19m
United Airlines
Deal found 20/1£146
Wed 6/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£167
Tue 28/415:22
YYC
-
SEA
1 stop6h 35m
United Airlines
Sun 3/505:00
SEA
-
YYC
1 stop6h 19m
United Airlines
Deal found 20/1£191
Best flights from Calgary to Seattle
Discover carefully curated flight deals from Calgary to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 January 2026.
Tue 3/313:10
YYC
-
SEA
2 stops10h 47m
Air Canada
Tue 10/315:40
SEA
-
YYC
1 stop6h 04m
Air Canada
Deal found 19/1£135
Thu 5/315:30
YYC
-
SEA
1 stop10h 29m
United Airlines
Mon 9/319:35
SEA
-
YYC
1 stop15h 51m
United Airlines
Deal found 19/1£141
Tue 5/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£144
Thu 5/315:30
YYC
-
SEA
1 stop10h 29m
United Airlines
Sun 8/305:00
SEA
-
YYC
1 stop6h 26m
United Airlines
Deal found 19/1£141
Tue 5/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Tue 19/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£144
Thu 7/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£144
Wed 29/413:27
YYC
-
SEA
2 stops11h 00m
United Airlines
Wed 13/505:00
SEA
-
YYC
1 stop6h 19m
United Airlines
Deal found 19/1£149
Wed 29/419:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Wed 13/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 19/1£145
Thu 7/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Mon 18/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£167
Sun 10/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£167
Fri 8/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£167
Direct flights from Calgary to Seattle
Explore direct flight options from Calgary to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 January 2026.
Tue 3/313:25
YYC
-
SEA
Nonstop1h 54m
WestJet
Tue 10/315:10
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 19/1£126
Mon 4/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Tue 19/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£144
Wed 29/419:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Wed 13/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 19/1£145
Wed 6/519:02
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Sun 24/508:03
SEA
-
YYC
Nonstop1h 38m
Alaska Airlines
Deal found 20/1£167
Fri 12/606:00
YYC
-
SEA
Nonstop1h 50m
Alaska Airlines
Mon 15/620:41
SEA
-
YYC
Nonstop1h 34m
Alaska Airlines
Deal found 18/1£272
Thu 5/219:00
YYC
-
SEA
Nonstop1h 52m
Alaska Airlines
Sun 8/215:33
SEA
-
YYC
Nonstop1h 37m
Alaska Airlines
Deal found 20/1£410
Last-minute flights from Calgary to Seattle
Discover last-minute flight deals from Calgary to Seattle. Data last updated 21 January 2026 and is based on user searches.
Fri 23/119:00
YYC
-
SEA
Nonstop1h 52m
Alaska Airlines
Mon 26/115:33
SEA
-
YYC
Nonstop1h 37m
Alaska Airlines
Deal found 18/1£419
Wed 28/106:15
YYC
-
SEA
1 stop13h 11m
United Airlines
Mon 2/208:10
SEA
-
YYC
3 stops26h 25m
United Airlines
Deal found 20/1£501
Thu 29/115:30
YYC
-
SEA
1 stop10h 29m
United Airlines
Mon 2/219:30
SEA
-
YYC
1 stop15h 56m
United Airlines
Deal found 18/1£257
Mon 2/215:30
YYC
-
SEA
1 stop6h 42m
United Airlines
Tue 10/208:10
SEA
-
YYC
3 stops26h 25m
United Airlines
Deal found 18/1£509
Thu 5/219:00
YYC
-
SEA
Nonstop1h 52m
Alaska Airlines
Sun 8/215:33
SEA
-
YYC
Nonstop1h 37m
Alaska Airlines
Deal found 20/1£410
Tue 17/213:25
YYC
-
SEA
Nonstop1h 54m
Delta
Thu 19/309:38
SEA
-
YYC
1 stop5h 37m
Delta
Deal found 18/1£287
Tue 24/206:15
YYC
-
SEA
3 stops15h 46m
United Airlines
Fri 27/207:15
SEA
-
YYC
1 stop28h 11m
United Airlines
Deal found 20/1£449
One-way flights from Calgary to Seattle
Search for one-way flight options from Calgary to Seattle. Find affordable one-way fares based on user searches. Data last updated 21 January 2026.
Sat 6/615:00
YYC
-
SEA
1 stop4h 30m
Air Canada
Deal found 20/1£89
Tue 2/619:00
YYC
-
SEA
Nonstop1h 49m
Alaska Airlines
Deal found 19/1£91
Thu 12/315:30
YYC
-
SEA
1 stop10h 29m
United Airlines
Deal found 19/1£91
Wed 4/319:00
YYC
-
SEA
Nonstop1h 57m
Alaska Airlines
Deal found 18/1£92
Tue 24/215:30
YYC
-
SEA
1 stop6h 31m
United Airlines
Deal found 18/1£95
Sat 16/506:00
YYC
-
SEA
2 stops18h 29m
United Airlines
Deal found 20/1£100
Sat 18/419:00
YYC
-
SEA
Nonstop1h 51m
Alaska Airlines
Deal found 20/1£119
Thu 5/313:25
YYC
-
SEA
Nonstop1h 54m
Delta
Deal found 19/1£127
Sat 16/512:15
YYC
-
SEA
Nonstop1h 53m
Delta
Deal found 20/1£137
Sat 6/619:00
YYC
-
SEA
Nonstop1h 49m
Alaska Airlines
Deal found 20/1£162
Sat 28/219:00
YYC
-
SEA
Nonstop1h 57m
Alaska Airlines
Deal found 18/1£163
Tue 10/213:25
YYC
-
SEA
Nonstop1h 54m
Delta
Deal found 21/1£170
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 21 January 2026.
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 January 2026.
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
Tue 3/3
13:10-22:57
2 stops10h 47m
Seattle/Tacoma Intl
Tue 10/3
15:40-22:44
1 stop6h 04m
£135
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Thu 5/3
15:30-00:59
1 stop10h 29m
Seattle/Tacoma Intl
Mon 9/3
19:35-12:26
1 stop15h 51m
£141
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Thu 5/3
15:30-00:59
1 stop10h 29m
Seattle/Tacoma Intl
Sun 8/3
05:00-12:26
1 stop6h 26m
£141
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Tue 5/5
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Sun 24/5
08:03-10:41
Nonstop1h 38m
£144
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Tue 5/5
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Tue 19/5
08:03-10:41
Nonstop1h 38m
£144
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Thu 7/5
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Sun 24/5
08:03-10:41
Nonstop1h 38m
£144
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Wed 29/4
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Wed 13/5
08:03-10:41
Nonstop1h 38m
£145
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Wed 29/4
13:27-23:27
2 stops11h 00m
Seattle/Tacoma Intl
Wed 13/5
05:00-12:19
1 stop6h 19m
£149
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Thu 7/5
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Mon 18/5
08:03-10:41
Nonstop1h 38m
£167
CalgarySeattle
YYC - SEA
YYCSEA
Calgary
Sun 10/5
19:02-19:52
Nonstop1h 50m
Seattle/Tacoma Intl
Sun 24/5
08:03-10:41
Nonstop1h 38m
£167
Flights are sorted by cheapest return flights first.
Deals found on 20/1
Showing 1-10 of 22 results
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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 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
Prices
Airlines
Delays
More
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 16 January 2026.
To ensure you get the cheapest price possible for a flight from Calgary to Seattle, you should look to book at least 67 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 £79). Flying from Calgary to Seattle in December is currently the most expensive (average of £119). 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 January 2026.
It’s typically best to fly out from Calgary to Seattle in the morning. Doing so could potentially save you 75% on the flight price compared to flying at midday, which is usually more expensive.
Weekly flight availability from Calgary to Seattle
Explore weekly flight availability from Calgary to Seattle. 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 21 January 2026.
The most flights from YYC to SEA are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
How often are flights from Calgary to Seattle delayed?
About 17% of weekly flights between Calgary and Seattle have experienced delays in the past year, with the average delay time being 115 minutes.
What is the most punctual flight time for Calgary to Seattle flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Calgary to Seattle flights?
Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.
What’s the top stopover airport for flights from Calgary to Seattle?
Share of one-stop return flights from Calgary to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Vancouver (YVR) – chosen by Cheapflights users on 67% of one-stop itineraries from Calgary to Seattle on Cheapflights.
What’s the cheapest stopover airport for flights from Calgary to Seattle?
Average return fare for one-stop flights from Calgary to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Vancouver (YVR) is the most affordable one-stop option, with an average return flight price of £160.
What’s the fastest stopover option from Calgary to Seattle?
Shortest average travel time for one-stop one-way flights from Calgary to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Kelowna (YLW) have the shortest average one-way travel time for one-stop routes: 3h 00m.
Which airport typically offers the quickest stopover for flights from Calgary to Seattle?
Average stopover duration for one-stop one-way flights from Calgary to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Kelowna (YLW) offer the fastest connection on this route, with an average stopover time of 0h 51m.
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 January 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.
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 are 5 flights from Calgary to Seattle/Tacoma Intl, all of which are around 1h 54m 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 15 times in the past calendar month.
How long is the flight from Calgary to Seattle?
For as low as £126, WestJet 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 £114. This flight start at 34% 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: Alaska Airlines (88%), Horizon Air (88%), Delta (71%).
What are the cheapest flights from Calgary to Seattle?
While on average a flight from Calgary to Seattle is generally £205, our data shows the cheapest flight currently is £94. When looking at the most popular route, (Calgary - Seattle/Tacoma Intl), you can expect to pay £141 for that flight.
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 £79). Flying from Calgary to Seattle in December is currently the most expensive (average of £119). 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.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 January 2026.
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 January 2026.
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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