Title: Cheap Flights from Calgary (YYC) to Seattle (BFI) - Expedia.ca ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Calgary (YYC) to Seattle (BFI) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Calgary International Airport (YYC) to Seattle, WA (BFI-Boeing Field) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yyc,to:bfi,departure:20/10/2025TANYT&leg2=from:bfi,to:yyc,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Alternative airports near Seattle Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:YYC,to:SEA,departure:20/10/2025TANYT&leg2=from:SEA,to:YYC,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) SEA Seattle - Tacoma Intl. Cheapest 20 min [Flights from CA $252](https://www.expedia.ca/Flights-Search?leg1=from:YYC,to:SEA,departure:20/10/2025TANYT&leg2=from:SEA,to:YYC,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.ca/Flights-Search?leg1=from:YYC,to:PAE,departure:20/10/2025TANYT&leg2=from:PAE,to:YYC,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) PAE Snohomish County - Paine Field 29 min [Flights from CA $679](https://www.expedia.ca/Flights-Search?leg1=from:YYC,to:PAE,departure:20/10/2025TANYT&leg2=from:PAE,to:YYC,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from YYC Calgary International Airport to King County International Airport? > If you're travelling between YYC and Boeing Field, round-trip flights start from . This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from YYC to BFI? > This varies from airline to airline, as each has its own set of terms and conditions. Head to the [Customer Service Portal](https://www.expedia.ca/helpcenter), where you'll find instructions on how to cancel online. ### How do I find cheap flights from Calgary Intl. Airport (YYC) to Boeing Field Airport (BFI) that have flexible change policies? > Select our "No change fees" filter to find flexible ticketing options for your flight from YYC to Boeing Field Airport (BFI). This allows you to lock in a low rate in advance and still have the freedom to make changes without any extra fees. You'll just need to pay the fare difference, if applicable. ### How far is the flight from YYC Calgary International Airport to BFI? > The distance from YYC (YYC) to King County International Airport (BFI) is only 720 kilometres. You'll be walking down the air bridge and grabbing your baggage from the carousel before you know it. ### Which airlines fly direct from YYC Calgary International Airport to Boeing Field? > You won't find any airlines operating directly between YYC Calgary International Airport and BFI, so be prepared to make at least one stop on your journey. A layover can be a good way to break up a trip! ### Are Calgary Intl. Airport (YYC) to Boeing Field Airport (BFI) flight tickets cheaper when they're purchased at the last minute? > Booking last minute from Calgary Intl. Airport (YYC) to Boeing Field Airport (BFI) can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out entirely! If you'd rather play it safe and start planning your trip ahead of time, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines publish their prices so far in advance. Our suggestion? Check back often as prices are updated frequently. ## Travel information | Origin airport | Calgary Intl. | | --- | --- | | Destination airport | Boeing Field | | Distance | 716 km | ## Book with confidence ### Calgary to Seattle Flights **The easy way to book your flights from Calgary to Seattle**  With Expedia, it’s simple to find and book flights to Seattle from Calgary whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Boeing Field, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Calgary to Seattle today, tomorrow, or this week.   **Save dollars with cheap flights from Calgary Intl., YYC to Boeing Field, BFI**  Sort your search results by price to find great deals on your flight from Calgary to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Calgary currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Seattle   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Seattle from Calgary**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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