Title: Cheap Flights from Seattle to Banff (SEA to YBA) - Expedia.co.uk ![](https://images.trvl-media.com/place/10550/68a256b2-312e-4cba-a1a8-462cbdde6c10.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/10550/68a256b2-312e-4cba-a1a8-462cbdde6c10.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seattle (SEA) to Banff (YBA) - [Return](?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 Seattle-Tacoma International Airport (SEA) to Banff, AB (YBA) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![easyJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_U2.svg) easyJet [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"U2"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Ryanair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FR.svg) Ryanair [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FR"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Jet2](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LS.svg) Jet2 [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:yba,departure:29/09/2025TANYT&leg2=from:yba,to:sea,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) Flight from Seattle to Banff route information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Banff | | Distance | 640 km | ## Compare flights from Seattle to Banff easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Banff. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Banff in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Banff.   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Banff (YBA) The easiest way to view the best deals on flights from Seattle to Banff today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Banff start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Seattle and Banff - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Seattle to Banff flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Banff for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Sea-Tac Airport to YBA? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight between Seattle - Tacoma Intl. Airport (SEA) and YBA was . Fares this cheap don't last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to YBA? > Most flights can be conveniently cancelled online, but whether or not you incur a fee all comes down to your airline. If you do have to cancel your getaway, follow the easy instructions in the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to YBA that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to YBA flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from SEA to YBA? > You won't need a lengthy novel for this flight — it's just 640 kilometres from SeaTac to Banff. Find your way to your seat, order a drink and you'll be in Banff in next to no time. ### Which airlines fly direct from SEA to YBA? > You won't find any airlines operating directly between Sea-Tac Airport and YBA, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip! ### Are Sea-Tac Airport to YBA flight tickets cheaper when they're purchased at the last minute? > Flight tickets from Sea-Tac Airport to YBA are available up to a year before departure on Expedia. And although you may occasionally nab great last-minute deal, it's not something you should count on. Also, booking your flights in advance means you'll have more options — and you can avoid landing the dreaded middle seat! 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