$136+ Cheap flights from Calgary (YYC) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — SEA
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Calgary to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Thursday or Saturday and return on a Friday
Cheap flight deals from Calgary to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Calgary to SeattleExplore 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 September 10, 2026.
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 September 10, 2026.
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:45 am -
Nonstop1h 55m
Sun 10/115:50 am -
1 stop4h 59m
Deal found 9/10![Multiple Airlines logo]()
$225
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:50 pm -
Nonstop1h 55m
Sat 9/267:35 pm -
Nonstop1h 40m
Deal found 9/10![WestJet logo]()
$226
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:50 pm -
Nonstop1h 55m
Sun 10/1110:30 am -
Nonstop1h 40m
Deal found 9/5![WestJet logo]()
$227
This Trip.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:45 pm -
Nonstop0h 55m
Mon 12/145:57 pm -
Nonstop2h 30m
Deal found 9/7![Multiple Airlines logo]()
$228
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:05 pm -
1 stop5h 27m
Sat 10/317:05 pm -
1 stop4h 44m
Deal found 9/9![Air Canada logo]()
$229
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:05 pm -
1 stop5h 27m
Sat 9/267:15 pm -
1 stop5h 24m
Deal found 9/8![Air Canada logo]()
$230
This Air Canada deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:05 pm -
1 stop5h 27m
Tue 9/223:00 pm -
1 stop4h 39m
Deal found 9/6![Air Canada logo]()
$232
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:55 am -
1 stop3h 42m
Mon 11/163:15 pm -
1 stop7h 19m
Deal found 9/10![Air Canada logo]()
$234
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:50 am -
1 stop4h 15m
Sun 10/1110:50 am -
1 stop6h 19m
Deal found 9/9![Air Canada logo]()
$235
Best flights from Calgary to SeattleDiscover carefully curated flight deals from Calgary to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Calgary to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:22 pm -
1 stop9h 04m
Sat 10/2410:50 am -
1 stop6h 19m
Deal found 9/6![Multiple Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:22 pm -
1 stop6h 39m
Tue 10/275:05 am -
1 stop8h 16m
Deal found 9/5![United Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:50 pm -
Nonstop1h 55m
Sun 10/49:07 am -
1 stop4h 08m
Deal found 9/9![Delta logo]()
$319
This United deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops18h 18m
Tue 11/310:10 am -
1 stop7h 24m
Deal found 9/8![Multiple Airlines logo]()
$262
This United deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:22 pm -
1 stop6h 39m
Sun 10/45:50 am -
1 stop4h 34m
Deal found 9/7![Multiple Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:00 pm -
1 stop5h 00m
Sun 10/187:35 pm -
Nonstop1h 40m
Deal found 9/9![Delta logo]()
$319
This United deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am -
1 stop8h 22m
Thu 10/83:00 pm -
1 stop5h 59m
Deal found 9/9![Multiple Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:15 pm -
1 stop4h 49m
Sat 9/267:35 pm -
Nonstop1h 40m
Deal found 9/9![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:22 pm -
1 stop9h 04m
Sun 9/275:00 am -
1 stop7h 53m
Deal found 9/6![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:15 pm -
1 stop4h 49m
Sun 9/277:35 pm -
Nonstop1h 40m
Deal found 9/8![Delta logo]()
$320
Last-minute flights from Calgary to SeattleDiscover last-minute flight deals from Calgary to Seattle. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Calgary to Seattle. Data last updated September 10, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:05 pm -
1 stop5h 27m
Tue 9/223:00 pm -
1 stop4h 39m
Deal found 9/6![Air Canada logo]()
$232
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:50 pm -
Nonstop1h 55m
Sat 9/267:35 pm -
Nonstop1h 40m
Deal found 9/10![WestJet logo]()
$226
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:05 pm -
1 stop5h 27m
Sat 9/267:15 pm -
1 stop5h 24m
Deal found 9/8![Air Canada logo]()
$230
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:05 pm -
1 stop5h 27m
Sun 9/277:15 pm -
1 stop5h 24m
Deal found 9/8![Air Canada logo]()
$234
This Air Canada deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:20 am -
2 stops10h 12m
Sun 9/277:15 pm -
1 stop5h 24m
Deal found 9/5![Air Canada logo]()
$236
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:45 am -
Nonstop1h 55m
Sun 10/115:50 am -
1 stop4h 59m
Deal found 9/10![Multiple Airlines logo]()
$225
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:50 am -
1 stop4h 15m
Sun 10/1110:50 am -
1 stop6h 19m
Deal found 9/9![Air Canada logo]()
$235
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:50 pm -
Nonstop1h 55m
Sun 10/1810:30 am -
Nonstop1h 40m
Deal found 9/5![WestJet logo]()
$227
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:05 pm -
1 stop5h 27m
Sat 10/317:05 pm -
1 stop4h 44m
Deal found 9/9![Air Canada logo]()
$229
This FlightHub deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:45 pm -
Nonstop1h 55m
Wed 11/42:30 pm -
Nonstop2h 40m
Deal found 9/8![WestJet logo]()
$237
One-way flights from Calgary to SeattleSearch for one-way flight options from Calgary to Seattle. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Calgary to Seattle. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:45 am -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![WestJet logo]()
$136
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:45 am -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![WestJet logo]()
$137
This eDestinos deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:45 am -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$138
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:05 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$139
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:05 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Air Canada logo]()
$141
This Air Canada deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:05 pm -
1 stop4h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Air Canada logo]()
$142
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:05 pm -
1 stop4h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$143
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:05 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:45 pm -
1 stop16h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$146
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:50 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$149
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:05 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Air Canada logo]()
$150
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am -
1 stop12h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$152
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $226 (Gotogate) |
One-way from | $136 (Kiwi.com) |
Popular in | August |
Cheapest in | November |
Average price | $276 |
Good round-trip deal | $346 or less |
Good one-way deal | $326 or less |
Cheapflights Fare Finder
Customize 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 7,457,451 searches. Data last updated September 10, 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
Cheapest round-trip
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Wed 9/23
7:05 pm-10:47 pm
1 stop4h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$142
Quickest round-trip
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Fri 11/6
6:45 am-8:32 am
1 stop3h 47m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$142
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Sun 10/4
7:05 pm-10:47 pm
1 stop4h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$149
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Sat 11/7
2:20 pm-5:22 pm
1 stop5h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$150
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Fri 9/18
6:00 am-5:42 pm
1 stop12h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$152
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Fri 9/25
3:22 pm-11:26 pm
1 stop9h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$152
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Fri 10/16
9:35 pm-10:05 am
1 stop13h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$153
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Sat 11/21
4:30 pm-7:47 pm
1 stop5h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$160
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Tue 10/27
3:30 pm-8:47 pm
1 stop6h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$163
CalgarySeattle
YYC Calgary - SEA Seattle/Tacoma Intl
YYCSEA
Calgary
Wed 9/23
6:00 am-11:26 pm
2 stops18h 26m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$163
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Calgary to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Calgary to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Calgary-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Calgary-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Calgary-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
YYC-SEA
Estimated round-trip 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
How far ahead should I book a flight from Calgary to Seattle?
The price you pay for your flight from Calgary to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 $194). Flying from Calgary to Seattle in August is currently the most expensive (average of $392). 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 September 10, 2026.
When flying from Calgary to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 75% versus a flight at noon.
What is the cheapest day to fly from Calgary to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Calgary to Seattle. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Calgary to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Calgary to Seattle delayed?
About 15% 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?
Sunday tends to have the lowest number of delays on this route, whereas Tuesday 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 last year, Alaska Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
The best insider tips for Calgary to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to Seattle trip
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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 September 10, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andWestJet from Calgary to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
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Calgary and Seattle flights
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Top 4 airlines flying from Calgary to Seattle
Discover the top 4 airlines 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$139 | Average$300 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$149 | Average$303 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$182 | Average$398 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$343 | Average$487 | FlexibilityNo cancel fee | On-timeN/A |