$202 Cheap Flights from Washington (IAD) to Bellingham (BLI)

View $202 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Bellingham, WA (BLI-Bellingham Intl.)

Cheap Flights from Washington to Bellingham (IAD-BLI)

Prices were available within the past 7 days and start at $202 for one-way flights and $359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Dec 16 - Tue, Jan 6
IAD
Washington
BLI
Bellingham
$359 Roundtrip, found 4 days ago
$359
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 16 from Washington to Bellingham, returning Tue, Jan 6, priced at $359 found 4 days ago
Alaska Airlines
Wed, Jan 21 - Tue, Jan 27
IAD
Washington
BLI
Bellingham
$362 Roundtrip, found 11 hours ago
$362
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Washington to Bellingham, returning Tue, Jan 27, priced at $362 found 11 hours ago
Alaska Airlines
Fri, Feb 6 - Mon, Feb 9
IAD
Washington
BLI
Bellingham
$363 Roundtrip, found 11 hours ago
$363
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Feb 6 from Washington to Bellingham, returning Mon, Feb 9, priced at $363 found 11 hours ago
Hawaiian Airlines
Tue, Dec 16 - Mon, Jan 5
IAD
Washington
BLI
Bellingham
$369 Roundtrip, found 4 days ago
$369
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 16 from Washington to Bellingham, returning Mon, Jan 5, priced at $369 found 4 days ago
Alaska Airlines
Sat, Jan 24 - Fri, Jan 30
IAD
Washington
BLI
Bellingham
$373 Roundtrip, found 11 hours ago
$373
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Washington to Bellingham, returning Fri, Jan 30, priced at $373 found 11 hours ago
Hawaiian Airlines
Tue, Dec 16 - Wed, Dec 31
IAD
Washington
BLI
Bellingham
$375 Roundtrip, found 4 days ago
$375
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 16 from Washington to Bellingham, returning Wed, Dec 31, priced at $375 found 4 days ago
Alaska Airlines
Sun, Dec 14 - Tue, Dec 30
IAD
Washington
BLI
Bellingham
$382 Roundtrip, found 4 days ago
$382
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Dec 14 from Washington to Bellingham, returning Tue, Dec 30, priced at $382 found 4 days ago
Alaska Airlines
Fri, Dec 12 - Mon, Dec 15
IAD
Washington
BLI
Bellingham
$383 Roundtrip, found 21 hours ago
$383
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Fri, Dec 12 from Washington to Bellingham, returning Mon, Dec 15, priced at $383 found 21 hours ago
Alaska Airlines
Fri, Feb 6 - Mon, Feb 9
IAD
Washington
BLI
Bellingham
$388 Roundtrip, found 11 hours ago
$388
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Feb 6 from Washington to Bellingham, returning Mon, Feb 9, priced at $388 found 11 hours ago
American Airlines
Wed, Jan 21 - Tue, Jan 27
IAD
Washington
BLI
Bellingham
$554 Roundtrip, found 11 hours ago
$554
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Jan 21 from Washington to Bellingham, returning Tue, Jan 27, priced at $554 found 11 hours ago

Alternative airports near Bellingham

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

Select flight to Abbotsford Intl. YXX. Cheapest option available. Average driving time to city center is 37 minutes. Flights from $1,154
YXX
Abbotsford Intl.
Cheapest
Average driving time to city center37 min
Flights from $1,154

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI) cost?
Grab a cheap one-way flight from $202 or cheap return flight from $359 from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI)?
The cheapest month to fly from IAD to BLI is December, when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IAD to BLI flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI)?
You'll need to catch a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from IAD to BLI?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary based on the airline, time of year 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 Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Bellingham Intl. Airport (BLI) last-minute?
Holding off until just before your trip to book a flight from IAD to BLI often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Keep your travel plans flexible to maximize your chances of scoring a bargain.
Is it cheaper to book an IAD to BLI flight and hotel package?
Opting for an IAD to BLI flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Bellingham Intl. Airport (BLI)?
If you booked your IAD to BLI flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Bellingham Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$358
Distance
2308 mi

Book with confidence

Washington to Bellingham Flights

The cheapest times to fly from Washington to Bellingham

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

 

The best time to book a flight from Washington to Bellingham

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

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 Bellingham in 2025. You can also book with separate airlines for your outbound and return journeys, from $202 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 Bellingham 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 Bellingham 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 Bellingham Flights

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*Available to One Key members.