HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$175+ Cheap flights from Bellingham (BLI) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — IAD
Jun 16 — Jun 231
Mon 6/16
Mon 6/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bellingham to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Bellingham to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 11, 2025.

Round-trip from

$331
(Trip.com)

One-way from

$175
(Alaska Airlines)

Popular in

May

Cheapest in

August

Average price

$726
From Bellingham to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Bellingham to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Bellingham to Dulles Intl

Cheapest flights from Bellingham to Dulles Intl
Explore the most affordable flight options available from Bellingham to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2025.

This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:08 pmBLI - IAD
1 stop8h 12mHawaiian Airlines
Wed 9/39:00 amIAD - BLI
1 stop9h 07mHawaiian Airlines
Deal found 6/11$331
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:08 pmBLI - IAD
1 stop8h 12mAlaska Airlines
Sat 9/66:09 pmIAD - BLI
1 stop8h 50mAlaska Airlines
Deal found 6/11$339
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/176:00 amBLI - IAD
2 stops27h 29mMultiple Airlines
Tue 7/2212:40 pmIAD - BLI
2 stops32h 23mMultiple Airlines
Deal found 6/10$416
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:20 amBLI - IAD
2 stops11h 29mAmerican Airlines
Wed 9/32:21 pmIAD - BLI
2 stops12h 38mAmerican Airlines
Deal found 6/11$606

Cheapflights Fare Finder

Customize your flight search to find flights from Bellingham to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 11, 2025.
Use the filters below to find and compare flights from Bellingham to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Bellingham

Fly to

Dulles Intl

Route

Depart

Return

Price

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Tue 8/26

1:08 pm-12:20 am

1 stop8h 12m

Washington, D.C. Dulles Intl

Wed 9/3

9:00 am-3:07 pm

1 stop9h 07m

$331

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Wed 8/27

1:08 pm-12:20 am

1 stop8h 12m

Washington, D.C. Dulles Intl

Sat 9/6

6:09 pm-11:59 pm

1 stop8h 50m

$339

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Thu 7/17

6:00 am-12:29 pm

2 stops27h 29m

Washington, D.C. Dulles Intl

Tue 7/22

12:40 pm-6:03 pm

2 stops32h 23m

$416

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Sat 8/23

5:20 am-7:49 pm

2 stops11h 29m

Washington, D.C. Dulles Intl

Wed 9/3

2:21 pm-11:59 pm

2 stops12h 38m

$606

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Mon 9/22

3:47 pm-7:32 am

1 stop12h 45m

$175

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Mon 8/4

6:00 am-11:26 am

3 stops26h 26m

$216

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Mon 9/22

1:08 pm-12:20 am

1 stop8h 12m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Bellingham to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Bellingham with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bellingham to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated June 11, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,493 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Bellingham to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Bellingham to Washington, D.C. Dulles Intl?

    Bellingham (BLI), located 3.2 mi from the city center, is the airport you fly out of when you book flights from Bellingham to Washington, D.C. Dulles Intl. 0 airlines have flights from Bellingham to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Bellingham to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

  • Can I find deals for flights from Bellingham to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Bellingham to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bellingham to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bellingham to Dulles Intl.

  • Can I find deals for business class flights from Bellingham to Dulles Intl?

    Yes. Cheapflights offers flight deals from Bellingham to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bellingham to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Bellingham to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Bellingham to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Bellingham?

Book flights to Bellingham if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bellingham to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Dulles Intl flights
Seattle to Reagan-National flights
Seattle to Baltimore flights
Portland to Reagan-National flights
Portland to Dulles Intl flights
Portland to Baltimore flights
Spokane to Dulles Intl flights
Spokane to Baltimore flights
Pasco to Dulles Intl flights
Spokane to Reagan-National flights
Pasco to Baltimore flights
Pasco to Reagan-National flights
Wenatchee to Dulles Intl flights
Wenatchee to Reagan-National flights
Wenatchee to Baltimore flights
Walla Walla to Baltimore flights
Bellingham to Baltimore flights
Yakima to Dulles Intl flights
Pullman to Dulles Intl flights
Pullman to Reagan-National flights
Bellingham to Reagan-National flights
Yakima to Baltimore flights
Yakima to Reagan-National flights
Walla Walla to Dulles Intl flights
Walla Walla to Reagan-National flights
Pullman to Baltimore flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.