Title: Cheap Flights from Seattle (SEA) to Gustavus (GST) - Expedia.ca ![Glacier Bay National Park showing a bay or harbor and mountains](https://images.trvl-media.com/place/6085531/677a97f3-bbb7-492f-818c-cfe893cc5a04.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by State of Alaska/Brian Adams ![](https://images.trvl-media.com/place/6085531/677a97f3-bbb7-492f-818c-cfe893cc5a04.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seattle (SEA) to Gustavus (GST) - [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 Gustavus, AK (GST) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:gst,departure:18/11/2025TANYT&leg2=from:gst,to:sea,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![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) ## Frequently asked questions ### How much is a flight from SEA to Gustavus Airport? > The lowest price advertised for a round-trip journey from Seattle - Tacoma Intl. Airport (SEA) to Gustavus Airport (GST) is . But you better move fast. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year. 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 Gustavus Airport? > The majority of flights can be cancelled online, but each airline has a different set of terms and conditions. If you do decide to cancel your flight, check out our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Sea-Tac Airport to GST that have flexible change policies? > Select our "No change fees" filter to find flexible ticketing options for your flight from Sea-Tac Airport to Gustavus Airport (GST). This allows you to snag a low rate in advance and still have the freedom to reschedule without any extra fees. Keep in mind that you'll need to cover the fare difference. ### How far is the flight from SEA to GST? > The flight distance between SEA and GST is 1,500 kilometres. Bring along a snack, a drink and a few good podcasts. Keep yourself busy in the air and the time will fly by. ### Which airlines fly direct from SEA to GST? > Unfortunately, there aren't any airlines that fly direct between Seattle - Tacoma Intl. Airport (SEA) and Gustavus Airport (GST). You'll have to book a flight with at least one stop. ### Are Sea-Tac Airport to GST flight tickets cheaper when they're purchased at the last minute? > Flight prices fluctuate, so there are no guarantees. While last-minute flight deals between Sea-Tac Airport and Gustavus Airport are of course possible, it also makes sense to monitor prices well before you fly. In fact, some carriers announce their prices up to a year ahead of the departure date. Expedia is continuously updating the best bargains around, so keep checking back and be ready to grab your seat when prices drop. ## Travel information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Gustavus | | Distance | 1500 km | ## Book with confidence ### Seattle to Gustavus Flights **The easy way to book your flights from Seattle to Gustavus**  With Expedia, it’s simple to find and book flights to Gustavus 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 Gustavus, 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 Gustavus today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Gustavus, GST**  Sort your search results by price to find great deals on your flight from Seattle to Gustavus—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Gustavus 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 Gustavus   - 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 Gustavus 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. 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