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Cheap flights from Calgary to SeaTac

Compare Calgary to SeaTac flight deals

Find the cheapest month or even day of the year to fly to SeaTac

Book the best SeaTac fare with no extra fees

Calgary Airport to SeaTac flight deals

Looking for a cheap last-minute deal or the best return flight from Calgary Airport to SeaTac? Find our lowest prices on one-way and return tickets to the easiest airport right here.
Seattle.P12,791 per passenger.Departing Mon, 4 May, returning Wed, 6 May.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Mon, 4 May, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Wed, 6 May, arriving in Calgary.Price includes taxes and charges.From P12,791, select.
Seattle.P13,547 per passenger.Departing Fri, 5 Jun, returning Sun, 7 Jun.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Fri, 5 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Sun, 7 Jun, arriving in Calgary.Price includes taxes and charges.From P13,547, select.
Seattle.P14,705 per passenger.Departing Tue, 7 Apr, returning Thu, 9 Apr.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Tue, 7 Apr, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Thu, 9 Apr, arriving in Calgary.Price includes taxes and charges.From P14,705, select.
Seattle.P14,864 per passenger.Departing Sat, 30 May, returning Mon, 8 Jun.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Sat, 30 May, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Mon, 8 Jun, arriving in Calgary.Price includes taxes and charges.From P14,864, select.
Seattle.P14,934 per passenger.Departing Thu, 2 Jul, returning Tue, 14 Jul.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Thu, 2 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 14 Jul, arriving in Calgary.Price includes taxes and charges.From P14,934, select.
Seattle.P15,914 per passenger.Departing Wed, 29 Apr, returning Mon, 4 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Wed, 29 Apr, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Mon, 4 May, arriving in Calgary.Price includes taxes and charges.From P15,914, select.
Seattle.P15,978 per passenger.Departing Thu, 30 Apr, returning Sat, 2 May.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Thu, 30 Apr, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Sat, 2 May, arriving in Calgary.Price includes taxes and charges.From P15,978, select.
Seattle.P16,748 per passenger.Departing Tue, 31 Mar, returning Tue, 7 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Tue, 31 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 7 Apr, arriving in Calgary.Price includes taxes and charges.From P16,748, select.
Seattle.P18,325 per passenger.Departing Fri, 20 Mar, returning Tue, 24 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Fri, 20 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 24 Mar, arriving in Calgary.Price includes taxes and charges.From P18,325, select.
Seattle.P18,593 per passenger.Departing Fri, 26 Jun, returning Sat, 4 Jul.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Fri, 26 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Sat, 4 Jul, arriving in Calgary.Price includes taxes and charges.From P18,593, select.
Seattle.P20,205 per passenger.Departing Wed, 5 Aug, returning Fri, 14 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Wed, 5 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Fri, 14 Aug, arriving in Calgary.Price includes taxes and charges.From P20,205, select.
Seattle.P20,667 per passenger.Departing Sat, 17 Oct, returning Sun, 25 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Sat, 17 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sun, 25 Oct, arriving in Calgary.Price includes taxes and charges.From P20,667, select.
Seattle.P20,758 per passenger.Departing Thu, 27 Aug, returning Mon, 31 Aug.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Thu, 27 Aug, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Mon, 31 Aug, arriving in Calgary.Price includes taxes and charges.From P20,758, select.
Seattle.P20,758 per passenger.Departing Thu, 16 Jul, returning Tue, 21 Jul.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Thu, 16 Jul, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Tue, 21 Jul, arriving in Calgary.Price includes taxes and charges.From P20,758, select.
Seattle.P20,782 per passenger.Departing Tue, 13 Oct, returning Sat, 14 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Calgary on Tue, 13 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sat, 14 Nov, arriving in Calgary.Price includes taxes and charges.From P20,782, select.
Seattle.P20,793 per passenger.Departing Sun, 30 Aug, returning Tue, 1 Sep.Return flight with WestJet.Outbound direct flight with WestJet departs from Calgary on Sun, 30 Aug, arriving in Seattle / Tacoma International.Inbound direct flight with WestJet departs from Seattle / Tacoma International on Tue, 1 Sep, arriving in Calgary.Price includes taxes and charges.From P20,793, select.

Calgary to SeaTac: Flight information

The things to know before you go.
Fly intoSeattle / Tacoma International Airport
Cheapest flight foundP12,791
Cheapest month to flyMay
Average flight time2 hrs, 9 mins
Most popular airlineHorizon Air
Average flights per week99

Find the cheapest month to fly from Calgary to SeaTac

We always keep an eye on fares, so you can find the best flight deal in seconds. It looks like Calgary to SeaTac flights are currently cheapest in May. We’ve based this on flights into Seattle / Tacoma International Airport.
Mar
from P18,325
Apr
from P14,705
May
from P12,791
Jun
from P13,547
Jul
from P14,934
Aug
from P20,205
Sep
from P20,848
Oct
from P20,667
Nov
from P20,900
Dec
Find prices
Jan
Find prices
Feb
Find prices

Check out these SeaTac hotels

Ready to plan your stay? Other travellers rate these SeaTac hotels for cleanliness, service and location.
Hampton Inn & Suites Seattle-Airport/28th Ave
2.95 km from city centre
P8,242
Per night
Aloft Seattle Sea-Tac Airport
3.02 km from city centre
P9,128
Per night
Coast Gateway Hotel
2.62 km from city centre
P8,632
Per night
Hampton Inn & Suites Seattle-Airport/28th Ave
2.95 km from city centre
P8,242
Per night
Aloft Seattle Sea-Tac Airport
3.02 km from city centre
P9,128
Per night
Coast Gateway Hotel
2.62 km from city centre
P8,632
Per night
Explore top-rated hotels

Finding cheap flights from Calgary to SeaTac: Frequently asked questions

There are 3 airports near SeaTac: Seattle / Tacoma International Airport, Seattle Boeing Fld Airport and Seattle Lake Union SPB Airport.
The best price we found for a return flight from Calgary to SeaTac is P12,791. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Horizon Air, Alaska Airlines, Delta all offer direct flights to Seattle / Tacoma International Airport.
We've checked every Calgary Airport to SeaTac fare we could find, and the cheapest upcoming date to fly seems to be on Monday, 4 May 2026. Overall, the cheapest month to fly from Calgary Airport to SeaTac is usually May.
If you're flying from Calgary Airport, the cheapest airport near SeaTac is Seattle / Tacoma International – which is 1.4 km away from the centre of SeaTac. We've found flights into this airport from P12,791.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Calgary Airport to SeaTac on Monday, 4 May 2026.
No airlines currently offer direct flights between Calgary Airport and SeaTac. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to SeaTac but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to SeaTac is around 40 days in advance, so don’t leave your flight to the last minute.
Seattle / Tacoma International Airport is 1.4km from SeaTac, Seattle Boeing Fld Airport is 8.5km from SeaTac, and Seattle Lake Union SPB Airport is 19.3km from SeaTac.
Seattle / Tacoma International Airport is closest to SeaTac, at around 1.4 km away.
Currently, the cheapest airline that flies to Seattle / Tacoma International Airport - the closest airport to SeaTac - WestJet.