CA $344 Cheap Flights from Bellingham (BLI) to Washington (IAD)

View CA $344 flight on Wed, Oct 14, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Bellingham (BLI) to Washington (IAD)

Prices were available within the past 7 days and start at CA $344 for one-way flights and CA $646 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Jul 14 - Tue, Jul 28
BLI
Bellingham
IAD
Washington
CA $646 Roundtrip, found 2 days ago
CA $646
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Jul 14 from Bellingham to Washington, returning Tue, Jul 28, priced at CA $646 found 2 days ago
Alaska Airlines
Wed, Jun 3 - Tue, Jun 16
BLI
Bellingham
IAD
Washington
CA $647 Roundtrip, found 3 days ago
CA $647
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Bellingham to Washington, returning Tue, Jun 16, priced at CA $647 found 3 days ago
Alaska Airlines
Tue, Jun 9 - Mon, Jun 22
BLI
Bellingham
IAD
Washington
CA $650 Roundtrip, found 3 days ago
CA $650
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Jun 9 from Bellingham to Washington, returning Mon, Jun 22, priced at CA $650 found 3 days ago
Alaska Airlines
Wed, Jun 3 - Thu, Jun 11
BLI
Bellingham
IAD
Washington
CA $654 Roundtrip, found 3 days ago
CA $654
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Bellingham to Washington, returning Thu, Jun 11, priced at CA $654 found 3 days ago
Alaska Airlines
Fri, Jun 5 - Tue, Jun 16
BLI
Bellingham
IAD
Washington
CA $660 Roundtrip, found 3 days ago
CA $660
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Jun 5 from Bellingham to Washington, returning Tue, Jun 16, priced at CA $660 found 3 days ago
Alaska Airlines
Wed, Oct 14 - Mon, Oct 19
BLI
Bellingham
IAD
Washington
CA $663 Roundtrip, found 4 days ago
CA $663
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Oct 14 from Bellingham to Washington, returning Mon, Oct 19, priced at CA $663 found 4 days ago
Alaska Airlines
Fri, Jun 5 - Thu, Jun 11
BLI
Bellingham
IAD
Washington
CA $668 Roundtrip, found 3 days ago
CA $668
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Jun 5 from Bellingham to Washington, returning Thu, Jun 11, priced at CA $668 found 3 days ago
Alaska Airlines
Sat, Jun 6 - Tue, Jun 16
BLI
Bellingham
IAD
Washington
CA $671 Roundtrip, found 3 days ago
CA $671
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Jun 6 from Bellingham to Washington, returning Tue, Jun 16, priced at CA $671 found 3 days ago
Alaska Airlines
Thu, Jul 30 - Tue, Aug 4
BLI
Bellingham
IAD
Washington
CA $676 Roundtrip, found 1 day ago
CA $676
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jul 30 from Bellingham to Washington, returning Tue, Aug 4, priced at CA $676 found 1 day ago
American Airlines
Wed, Oct 14 - Mon, Oct 19
BLI
Bellingham
IAD
Washington
CA $814 Roundtrip, found 4 days ago
CA $814
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 14 from Bellingham to Washington, returning Mon, Oct 19, priced at CA $814 found 4 days ago

Frequently asked questions

How do I find cheap flights from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically departs at approximately 5:15 AM local time. This service is operated by Alaska Airlines and American Airlines. This is a seasonal service active in October. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) on a Tuesday, with around 6 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Alaska Airlines and Hawaiian Airlines. Compared to other days, Tuesdays offer notably more flight options.
What are the most popular departure times for flights from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the early morning, from 3am to 6am. About 36% of passengers prefer this time window. Many major carriers, including Alaska Airlines, American Airlines and Hawaiian Airlines, offer flights during this window. These early morning flights can be a great option if you're looking to arrive at your destination with plenty of time to spare for the day ahead.
Can you fly business or first class from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Select the "Business class" and "First class" filters when looking for BLI to IAD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Bellingham Intl. (BLI)?
From Bellingham Intl. (BLI), you can fly into Washington Dulles Intl. (IAD) and Ronald Reagan Washington National (DCA) in Washington. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, 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 Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Bellingham, WA (BLI-Bellingham Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, 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 if you'd like more information.

Travel information

Origin airport
Bellingham Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
CA $646
Distance
3693 km

Book with confidence

Bellingham to Chantilly Flights

The easy way to book your flights from Bellingham to Washington 

With Expedia, it’s simple to find and book flights to Washington from Bellingham whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Washington Dulles Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Bellingham to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Bellingham Intl., BLI to Washington Dulles Intl., IAD 

Sort your search results by price to find great deals on your flight from Bellingham to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Bellingham currently is just CA $646 rising to CA $814.  

Here are more money-saving tips: 

  • Fly in July when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Washington from Bellingham 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.

Bellingham to Chantilly Flights

Explore a world of travel with Expedia

*Available to Expedia members.