$2,063 Cheap Brussels Airlines flights Oslo (OSL) to Washington (IAD)

View $2,063 flight on Tue, Jul 22, 2025Opens in a new window

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$2,063 Cheap Brussels Airlines flights Oslo (OSL) to Washington (IAD)

Prices were available within the past 7 days and start at $2,063 for one-way flights and $509 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Brussels Airlines
Wed, Sep 3 - Wed, Sep 10
OSL
Oslo
IAD
Washington
$509 Roundtrip, found 2 days ago
$509
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Wed, Sep 3 from Oslo to Washington, returning Wed, Sep 10, priced at $509 found 2 days ago
Flights from Oslo (OSL) to Washington (IAD)
Origin airport
Gardermoen
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
Scandinavian Airlines
Distance
3887 mi

Frequently asked questions

How much is a Brussels Airlines flight from Gardermoen Airport (OSL) to Washington Dulles Intl. Airport (IAD)?
You'll discover affordable return Brussels Airlines flights from $509 from OSL to IAD by organizing your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $2,063 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from OSL to IAD with Brussels Airlines?
Search for one-way or return flights to Washington in January or February. You could find an affordable fare with Brussels Airlines during these off-season months.
What is the cheapest time to book flights from Gardermoen Airport (OSL) to Washington Dulles Intl. Airport (IAD) with Brussels Airlines?
Snagging the best Brussels Airlines deals from OSL to IAD often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It's a good idea to start searching for flights about one month before you want to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Brussels Airlines fly nonstop from Gardermoen Airport (OSL) to Washington Dulles Intl. Airport (IAD)?
Fill in your dates, hit search and tick the "Nonstop" filter on Expedia to browse any direct flights from OSL to IAD with Brussels Airlines or another airline.
What is the earliest Brussels Airlines flight from OSL to IAD?
To find the earliest departure from OSL to IAD with Brussels Airlines, sort your results by "Morning" and "Early Morning." Choosing an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Brussels Airlines fly into in Washington?
Hop on a Brussels Airlines flight from Gardermoen Airport (OSL) to Washington, and you're most likely to arrive at Washington Dulles Intl. Airport (IAD). This is the airline's main hub in this destination.
What kind of luggage can I take on a Brussels Airlines flight from Gardermoen Airport (OSL) to Washington Dulles Intl. Airport (IAD)?
You're allowed 1 cabin bag weighing up to 35 lb with dimensions no larger than 21 inches x 15 inches x 9 inches. You can also take a small personal item onboard when flying standard economy from OSL to IAD with Brussels Airlines. Luggage limits can differ by cabin class and airfare type, so check Brussels Airlines's website to avoid unexpected fees at the airport.
Why fly with Brussels Airlines from OSL to IAD?
Offering a rewarding loyalty program, Brussels Airlines is a top choice for many passengers journeying from OSL to IAD. Plus, as a Miles and More and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Brussels Airlines flight from Gardermoen Airport (OSL) to Washington Dulles Intl. Airport (IAD)?
In most cases, you can cancel or reschedule your flight, although there may be a charge if you made your booking more than 24 hours ago. Want to keep your options open? Use our "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you have to revise your plans. To update your booking, go to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.