$387 Cheap Flights from Fort Smith (FSM) to Washington (IAD)

View $387 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Fort Smith, AR (FSM-Fort Smith Regional) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Fort Smith to Washington (FSM-IAD)

Prices were available within the past 7 days and start at $387 for one-way flights and $451 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Nov 15 - Wed, Nov 19
FSM
Fort Smith
IAD
Washington
$451 Roundtrip, found 3 days ago
$451
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Nov 15 from Fort Smith to Washington, returning Wed, Nov 19, priced at $451 found 3 days ago
American Airlines
Sat, Sep 20 - Sat, Sep 27
FSM
Fort Smith
IAD
Washington
$471 Roundtrip, found 1 day ago
$471
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 20 from Fort Smith to Washington, returning Sat, Sep 27, priced at $471 found 1 day ago
American Airlines
Sat, Nov 1 - Mon, Nov 3
FSM
Fort Smith
IAD
Washington
$489 Roundtrip, found 3 days ago
$489
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Nov 1 from Fort Smith to Washington, returning Mon, Nov 3, priced at $489 found 3 days ago
American Airlines
Tue, Nov 18 - Wed, Dec 3
FSM
Fort Smith
IAD
Washington
$521 Roundtrip, found 2 days ago
$521
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Fort Smith to Washington, returning Wed, Dec 3, priced at $521 found 2 days ago
American Airlines
Wed, Oct 29 - Tue, Nov 4
FSM
Fort Smith
IAD
Washington
$526 Roundtrip, found 3 days ago
$526
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 29 from Fort Smith to Washington, returning Tue, Nov 4, priced at $526 found 3 days ago
American Airlines
Wed, Nov 19 - Wed, Dec 3
FSM
Fort Smith
IAD
Washington
$531 Roundtrip, found 2 days ago
$531
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from Fort Smith to Washington, returning Wed, Dec 3, priced at $531 found 2 days ago
American Airlines
Tue, Sep 23 - Sat, Sep 27
FSM
Fort Smith
IAD
Washington
$541 Roundtrip, found 1 day ago
$541
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 23 from Fort Smith to Washington, returning Sat, Sep 27, priced at $541 found 1 day ago
American Airlines
Sat, Nov 1 - Mon, Nov 3
FSM
Fort Smith
IAD
Washington
$543 Roundtrip, found 3 days ago
$543
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Nov 1 from Fort Smith to Washington, returning Mon, Nov 3, priced at $543 found 3 days ago
American Airlines
Thu, Nov 20 - Wed, Dec 3
FSM
Fort Smith
IAD
Washington
$544 Roundtrip, found 2 days ago
$544
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Nov 20 from Fort Smith to Washington, returning Wed, Dec 3, priced at $544 found 2 days ago
American Airlines
Mon, Nov 17 - Wed, Dec 3
FSM
Fort Smith
IAD
Washington
$549 Roundtrip, found 2 days ago
$549
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Nov 17 from Fort Smith to Washington, returning Wed, Dec 3, priced at $549 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $544
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $544
Flights from Fort Smith (FSM) to Washington (IAD)
Origin airport
Fort Smith Regional
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines
Roundtrip price
$450
Distance
963 mi

Fort Smith to Washington Flights

The cheapest times to fly from Fort Smith 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 Fort Smith to Washington are during the month of November. You can find some of the cheapest flights from Fort Smith to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Fort Smith to Washington

Sunday is one of the best days to book for cheap flights from Fort Smith 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 Fort Smith 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 Fort Smith to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $387 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 Fort Smith 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 Fort Smith 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 does a flight from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $387 or cheap return flight from $451 from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD)?
November is the most affordable month to fly from FSM to IAD. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest FSM to IAD flight.
How many flights per day from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD)?
You'll have to catch a flight with a layover if you're traveling from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from FSM to IAD?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending 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 Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from FSM to IAD just before your getaway is typically more expensive. But if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a FSM to IAD flight and hotel package?
You'll typically save money by securing a FSM to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your preferred flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Fort Smith Regional Airport (FSM) to Washington Dulles Intl. Airport (IAD)?
It's generally possible to reschedule or cancel your FSM to IAD 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 whether any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.