$205 Cheap Flights from Washington (IAD) to Billings (BIL)

View $205 flight on Fri, Jan 16, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Billings Logan Intl. Airport (BIL)

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Cheap Flights from Washington to Billings (IAD-BIL)

Prices were available within the past 7 days and start at $205 for one-way flights and $382 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Dec 5 - Fri, Dec 12
IAD
Washington
BIL
Billings
$382 Roundtrip, found 1 day ago
$382
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Washington to Billings, returning Fri, Dec 12, priced at $382 found 1 day ago
Hawaiian Airlines
Sat, Dec 6 - Wed, Dec 17
IAD
Washington
BIL
Billings
$395 Roundtrip, found 1 day ago
$395
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Washington to Billings, returning Wed, Dec 17, priced at $395 found 1 day ago
Delta
Wed, Jan 7 - Tue, Jan 20
IAD
Washington
BIL
Billings
$396 Roundtrip, found 1 day ago
$396
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jan 7 from Washington to Billings, returning Tue, Jan 20, priced at $396 found 1 day ago
Delta
Thu, Jan 22 - Sat, Feb 7
IAD
Washington
BIL
Billings
$401 Roundtrip, found 1 day ago
$401
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 22 from Washington to Billings, returning Sat, Feb 7, priced at $401 found 1 day ago
Alaska Airlines
Fri, Dec 5 - Fri, Dec 12
IAD
Washington
BIL
Billings
$407 Roundtrip, found 1 day ago
$407
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Washington to Billings, returning Fri, Dec 12, priced at $407 found 1 day ago
Alaska Airlines
Thu, Mar 12 - Sat, Apr 11
IAD
Washington
BIL
Billings
$408 Roundtrip, found 16 hours ago
$408
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Thu, Mar 12 from Washington to Billings, returning Sat, Apr 11, priced at $408 found 16 hours ago
United
Wed, Dec 10 - Thu, Dec 11
IAD
Washington
BIL
Billings
$409 Roundtrip, found 4 days ago
$409
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 10 from Washington to Billings, returning Thu, Dec 11, priced at $409 found 4 days ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
IAD
Washington
BIL
Billings
$409 Roundtrip, found 4 days ago
$409
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Apr 21 from Washington to Billings, returning Tue, Apr 28, priced at $409 found 4 days ago
Delta
Tue, Apr 21 - Tue, Apr 28
IAD
Washington
BIL
Billings
$412 Roundtrip, found 4 days ago
$412
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Apr 21 from Washington to Billings, returning Tue, Apr 28, priced at $412 found 4 days ago
Delta
Tue, Jul 28 - Tue, Aug 4
IAD
Washington
BIL
Billings
$414 Roundtrip, found 3 days ago
$414
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 28 from Washington to Billings, returning Tue, Aug 4, priced at $414 found 3 days ago

Alternative airports near Billings

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

Select flight to Logan Intl. BIL. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $455
BIL
Logan Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $455

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL) cost?
Grab a cheap one-way flight from $205 or cheap return flight from $382 from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL) 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 Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL)?
Traveling in December is a good way to save, as it's the cheapest month for flights between IAD and BIL. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from IAD to BIL. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL)?
You'll have to take a flight with a layover if you're traveling from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from IAD to BIL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*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 Logan Intl. Airport (BIL)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL) route, aim to travel before 3 PM. Flights after this time are 22% more likely to be canceled.**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 Logan Intl. Airport (BIL) last-minute?
Last-minute fares from IAD to BIL are typically more expensive. To secure the lowest prices, start searching for flights well in advance. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book an IAD to BIL flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to BIL flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place will take the hassle out of planning your trip. Just secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BIL)?
In most cases, you can cancel or reschedule your IAD to BIL flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more details, head to our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$382
Distance
1644 mi

Book with confidence

Washington to Billings Flights

The cheapest times to fly from Washington to Billings

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

 

The best time to book a flight from Washington to Billings

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

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 Billings in 2025. You can also book with separate airlines for your outbound and return journeys, from $205 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 Billings 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 Billings 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 Billings Flights

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