$326 Cheap Flights from Gustavus (GST) to Washington (IAD)

View $326 flight on Mon, Aug 25, 2025Opens in a new window

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

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Cheap Flights from Gustavus to Washington (GST-IAD)

Prices were available within the past 7 days and start at $326 for one-way flights and $679 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Aug 6 - Mon, Aug 25
GST
Gustavus
IAD
Washington
$679 Roundtrip, found 2 days ago
$679
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Aug 6 from Gustavus to Washington, returning Mon, Aug 25, priced at $679 found 2 days ago
Hawaiian Airlines
Wed, Aug 6 - Sat, Aug 16
GST
Gustavus
IAD
Washington
$682 Roundtrip, found 2 days ago
$682
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Aug 6 from Gustavus to Washington, returning Sat, Aug 16, priced at $682 found 2 days ago
Hawaiian Airlines
Wed, Jul 30 - Wed, Aug 6
GST
Gustavus
IAD
Washington
$705 Roundtrip, found 2 days ago
$705
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Jul 30 from Gustavus to Washington, returning Wed, Aug 6, priced at $705 found 2 days ago
Alaska Airlines
Wed, Aug 6 - Sun, Aug 17
GST
Gustavus
IAD
Washington
$712 Roundtrip, found 2 days ago
$712
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Aug 6 from Gustavus to Washington, returning Sun, Aug 17, priced at $712 found 2 days ago
Hawaiian Airlines
Tue, Aug 12 - Mon, Aug 25
GST
Gustavus
IAD
Washington
$738 Roundtrip, found 2 days ago
$738
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 12 from Gustavus to Washington, returning Mon, Aug 25, priced at $738 found 2 days ago
Alaska Airlines
Tue, Aug 5 - Sat, Aug 16
GST
Gustavus
IAD
Washington
$741 Roundtrip, found 2 days ago
$741
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Aug 5 from Gustavus to Washington, returning Sat, Aug 16, priced at $741 found 2 days ago
Hawaiian Airlines
Wed, Jul 30 - Mon, Aug 11
GST
Gustavus
IAD
Washington
$764 Roundtrip, found 2 days ago
$764
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Jul 30 from Gustavus to Washington, returning Mon, Aug 11, priced at $764 found 2 days ago
Hawaiian Airlines
Tue, Aug 5 - Sun, Aug 17
GST
Gustavus
IAD
Washington
$771 Roundtrip, found 2 days ago
$771
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 5 from Gustavus to Washington, returning Sun, Aug 17, priced at $771 found 2 days ago
Hawaiian Airlines
Wed, Jul 9 - Wed, Jul 30
GST
Gustavus
IAD
Washington
$799 Roundtrip, found 2 days ago
$799
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Jul 9 from Gustavus to Washington, returning Wed, Jul 30, priced at $799 found 2 days ago
Hawaiian Airlines
Tue, Jul 15 - Wed, Aug 6
GST
Gustavus
IAD
Washington
$800 Roundtrip, found 2 days ago
$800
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jul 15 from Gustavus to Washington, returning Wed, Aug 6, priced at $800 found 2 days ago
Flights from Gustavus (GST) to Washington (IAD)
Origin airport
Gustavus
Destination airport
Washington Dulles Intl.
Roundtrip price
$678
Distance
2861 mi

Gustavus to Washington Flights

The cheapest times to fly from Gustavus to Washington

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 Gustavus to Washington are during the month of August. You can find some of the cheapest flights from Gustavus to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Gustavus to Washington

Sunday is one of the best days to book for cheap flights from Gustavus to Washington: 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 Gustavus to Washington

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 Gustavus to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $326 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 Gustavus to Washington 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 Gustavus to Washington 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.

 

Frequently asked questions

How much is a flight from GST to Dulles Intl. Airport?
The lowest price advertised for a round-trip journey between Gustavus Airport and IAD is $679. But you better move fast. This figure is taken from fares listed 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 GST to Dulles Intl. Airport?
Each air carrier has its own terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from GST to IAD 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 Gustavus Airport to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Gustavus Airport (GST) to Dulles Intl. Airport?
With a flight distance of 2859 mi from GST to IAD, this is a long-haul flight. Ensure that you stay hydrated and move your legs every now and then.
Which airlines fly direct from Gustavus Airport (GST) to Dulles Intl. Airport?
Flying nonstop between Gustavus Airport and IAD isn't possible at this time. However, you'll still be able to find a flight to Chantilly with at least one stop.
Are GST to IAD flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes pick up a bargain, with some of the cheapest airfares from Gustavus Airport to Washington Dulles Intl. Airport (IAD) arising a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates all the best flight deals frequently --- as early as a year in advance in some cases. It does depend on the carrier though, as not every airline advertises prices that far in advance.

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*Available to One Key members.