Title: Cheap Flights from Seattle (SEA) to Castries (SLU) - Expedia.ca ![La Toc Beach](https://images.trvl-media.com/place/553248621533157962/427c3ca0-a24c-4935-aa2f-199315cd7f76.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/553248621533157962/427c3ca0-a24c-4935-aa2f-199315cd7f76.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seattle (SEA) to Castries (SLU) - [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 Seattle-Tacoma International Airport (SEA) to George F. L. Charles Airport (SLU) - ![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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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:sea,to:slu,departure:11/11/2025TANYT&leg2=from:slu,to:sea,departure:18/11/2025TANYT&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) Flight from Seattle to Castries (SEA - SLU) route information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | George F. L. Charles | | Distance | 6680 km | ## Seattle to Castries Flights **The easy way to book your flights from Seattle to Castries**  With Expedia, it’s simple to find and book flights to Castries from Seattle 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 George F. L. Charles, 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 Seattle to Castries today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to George F. L. Charles, SLU**  Sort your search results by price to find great deals on your flight from Seattle to Castries—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Castries from Seattle 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 Castries   - 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 Castries from Seattle**  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. So book your flight to Castries with Expedia today. ## Frequently asked questions ### How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to George F. L. Charles Airport (SLU)? > If you're travelling from SEA to Vigie Airport, round-trip flights start from . This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book today and save yourself both 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 Sea-Tac Airport to SLU? > Every air carrier has different terms and conditions. If you decide to cancel your trip, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Sea-Tac Airport to SLU that have flexible change policies? > Flights from Sea-Tac Airport to SLU with flexible change policies are available from several airlines. Simply use our "No change fees" filter while searching. You'll only need to cover the fare difference, without any added fees to worry about. ### How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Vigie Airport? > With around 6,700 kilometres separating SeaTac and Castries, your flight will be a long one. Pack wisely and make your trip more comfortable. Simple things like an eye mask and a quality travel pillow can make a massive difference. ### Which airlines fly direct from Sea-Tac Airport to SLU? > If you want to travel straight from SEA to George F. L. Charles Airport (SLU), you'll need to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route. ### Are Seattle - Tacoma Intl. Airport (SEA) to Vigie Airport flight tickets cheaper when they're purchased at the last minute? > Booking last minute from Seattle - Tacoma Intl. Airport (SEA) to George F. L. Charles Airport (SLU) can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out altogether! If you'd prefer to start planning your trip early, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices that far in advance. Our suggestion? Check back often as prices are updated regularly. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rental - Other ### Lodging - [Babonneau Hotels](https://www.expedia.ca/Babonneau-Hotels.d6337746.Travel-Guide-Hotels) - [Balata Hotels](https://www.expedia.ca/Balata-Hotels.d553248635975871686.Travel-Guide-Hotels) - [Bisée Hotels](https://www.expedia.ca/Bisee-Hotels.d553248635975857342.Travel-Guide-Hotels) - [B&B in Castries](https://www.expedia.ca/Castries-Bed-And-Breakfast.d3209-aaBedAndBreakfast.Travel-Guide-Accommodation) - [Guest Houses in Castries](https://www.expedia.ca/Castries-Guest-Houses.d3209-aaGuestHouses.Travel-Guide-Accommodation) - [All Inclusive Resorts and in Castries](https://www.expedia.ca/Castries-Hotels-All-Inclusive-Hotel.0-0-d3209-tAllInclusiveHotel.Travel-Guide-Filter-Hotels) - [Beach Hotel Hotels in Castries](https://www.expedia.ca/Castries-Hotels-Beach-Hotel.0-0-d3209-tBeachHotel.Travel-Guide-Filter-Hotels) - [Cheap Hotels in Castries](https://www.expedia.ca/Castries-Hotels-Cheap-Hotels.0-0-d3209-tCheapHotels.Travel-Guide-Filter-Hotels) - 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