$204 Cheap Flights from West Yellowstone (WYS) to Washington (IAD)

View $204 flight on Wed, Sep 17, 2025Opens in a new window

Popular airlines from West Yellowstone, MT (WYS-Yellowstone) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from West Yellowstone to Washington (WYS-IAD)

Prices were available within the past 7 days and start at $204 for one-way flights and $836 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$836 Roundtrip, found 1 day ago
$836
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $836 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$911 Roundtrip, found 1 day ago
$911
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $911 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$918 Roundtrip, found 1 day ago
$918
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $918 found 1 day ago
United
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$940 Roundtrip, found 1 day ago
$940
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $940 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,005 Roundtrip, found 1 day ago
$1,005
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,005 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,058 Roundtrip, found 1 day ago
$1,058
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,058 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,063 Roundtrip, found 1 day ago
$1,063
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,063 found 1 day ago
Delta
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,082 Roundtrip, found 1 day ago
$1,082
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,082 found 1 day ago
United
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,110 Roundtrip, found 1 day ago
$1,110
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,110 found 1 day ago
United
Wed, Sep 17 - Sun, Sep 21
WYS
West Yellowstone
IAD
Washington
$1,119 Roundtrip, found 1 day ago
$1,119
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 17 from West Yellowstone to Washington, returning Sun, Sep 21, priced at $1,119 found 1 day ago
Flights from West Yellowstone (WYS) to Washington (IAD)
Origin airport
Yellowstone
Destination airport
Washington Dulles Intl.
Roundtrip price
$836
Distance
1764 mi

Frequently asked questions

How much does a flight from Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from WYS to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from WYS to IAD?
The cheapest flights from WYS to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from WYS to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from WYS to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD)?
You'll need to catch a flight with a layover if you're traveling from Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from WYS to IAD?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD)?
To reach Washington Dulles Intl. Airport (IAD) without delays, choose a flight that leaves Yellowstone Airport (WYS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from WYS to IAD are usually more expensive. To secure the best rates, start looking for flights ahead of time. That being said, if you're flexible with your travel plans, you may score a cheap ticket right before your trip.
Is it cheaper to book a WYS to IAD flight and hotel package?
Securing a WYS to IAD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Yellowstone Airport (WYS) to Washington Dulles Intl. Airport (IAD)?
It's usually possible to reschedule or cancel your WYS to IAD flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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