$536 Cheap Flights from Washington (IAD) to Gustavus (GST)

View $536 flight on Sun, Jun 14, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Gustavus, AK (GST)

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Cheap Flights from Washington to Gustavus (IAD-GST)

Prices were available within the past 7 days and start at $536 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST) cost?
Get a cheap one-way flight from $536 or cheap return flight from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST)?
Flying in is a great way to save, as it's the cheapest month for flights between IAD and GST. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from IAD to GST. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST)?
There are no daily nonstop flights from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from IAD to GST?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST)?
To touch down at Gustavus Airport (GST) without delays, pick a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST) last-minute?
Last-minute bookings from IAD to GST are typically more expensive. To secure the best prices, start looking for flights well in advance. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your journey.
Is it cheaper to book an IAD to GST flight and hotel package?
You'll generally save money by securing an IAD to GST flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Gustavus Airport (GST)?
Typically, it's possible to cancel or reschedule your IAD to GST flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Gustavus
Distance
2861 mi

Book with confidence

Book with confidence

Washington to Gustavus Flights

The cheapest times to fly from Washington to Gustavus

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Gustavus are during the month of . You can find some of the cheapest flights from Washington to Gustavus with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Gustavus

Sunday is one of the best days to book for cheap flights from Washington to Gustavus: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Gustavus

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Gustavus in 2025. You can also book with separate airlines for your outbound and return journeys, from $536 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Gustavus flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Gustavus airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Gustavus Flights

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