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$242 Cheap Flights from Washington (IAD) to Brussels (BRU)

View $242 flight on Sat, Oct 10, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Brussels Airport (BRU)

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Cheap Flights from Washington to Brussels (IAD-BRU)

Prices were available within the past 7 days and start at $242 for one-way flights and $539 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Dec 2 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$539 Roundtrip, just found
$539
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 2 from Washington to Brussels, returning Thu, Dec 10, priced at $539 just found
Icelandair
Sat, Oct 24 - Tue, Nov 3
IAD
Washington
BRU
Brussels
$551 Roundtrip, found 5 days ago
$551
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sat, Oct 24 from Washington to Brussels, returning Tue, Nov 3, priced at $551 found 5 days ago
TAP Portugal
Thu, Dec 10 - Wed, Dec 16
IAD
Washington
BRU
Brussels
$699 Roundtrip, just found
$699
Roundtrip
just found
Select TAP Portugal flight, departing Thu, Dec 10 from Washington to Brussels, returning Wed, Dec 16, priced at $699 just found
Scandinavian Airlines
Wed, Aug 19 - Wed, Aug 26
IAD
Washington
BRU
Brussels
$723 Roundtrip, found 1 hour ago
$723
Roundtrip
found 1 hour ago
Select Scandinavian Airlines flight, departing Wed, Aug 19 from Washington to Brussels, returning Wed, Aug 26, priced at $723 found 1 hour ago
Aer Lingus
Wed, Dec 2 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$741 Roundtrip, just found
$741
Roundtrip
just found
Select Aer Lingus flight, departing Wed, Dec 2 from Washington to Brussels, returning Thu, Dec 10, priced at $741 just found
United
Mon, Nov 30 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$759 Roundtrip, found 2 days ago
$759
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 30 from Washington to Brussels, returning Thu, Dec 10, priced at $759 found 2 days ago
United
Wed, Dec 2 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$762 Roundtrip, just found
$762
Roundtrip
just found
Select United flight, departing Wed, Dec 2 from Washington to Brussels, returning Thu, Dec 10, priced at $762 just found
Air Canada
Wed, Dec 2 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$769 Roundtrip, just found
$769
Roundtrip
just found
Select Air Canada flight, departing Wed, Dec 2 from Washington to Brussels, returning Thu, Dec 10, priced at $769 just found
Lufthansa
Wed, Dec 2 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$776 Roundtrip, just found
$776
Roundtrip
just found
Select Lufthansa flight, departing Wed, Dec 2 from Washington to Brussels, returning Thu, Dec 10, priced at $776 just found
American Airlines
Mon, Nov 30 - Thu, Dec 10
IAD
Washington
BRU
Brussels
$778 Roundtrip, found 2 days ago
$778
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Nov 30 from Washington to Brussels, returning Thu, Dec 10, priced at $778 found 2 days ago

Alternative airports near Brussels

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

Select flight to Brussels - National BRU. Cheapest and Closest option available. Average driving time to city center is 15 minutes. Flights from $1,624
BRU
Brussels - National
CheapestClosest
Average driving time to city center15 min
Flights from $1,624

Find the cheapest month to fly from Washington (IAD) to Brussels (BRU)

October is typically the cheapest month to fly

From $489 - $784 per traveler.

What you need to know for your flight from Washington Dulles Intl. to Brussels - National

Washington (IAD) to Brussels (BRU) at a glance

Embark on an exciting journey from Washington Dulles International Airport (IAD) to Brussels - National Airport (BRU) with a range of airlines offering weekly flights. Explore various options to find the best airfare that aligns with your travel plans and budget. As you prepare to experience the iconic sights and vibrant neighborhoods of Brussels, you can easily compare itineraries to ensure a smooth and enjoyable trip from Washington to Brussels.

  • Fastest flight duration: around 7h 30m non-stop
  • Route distance: roughly 3,900 miles (6,280 km)
  • Flights per week: around 10 departures on average
  • Typical fares (one-way): economy tickets often range from $240–$935, depending on seasonality and how far ahead you book

Flights from Washington Dulles International Airport (IAD) to Brussels - National Airport (BRU)

Based on the latest traveler bookings, here are the top airlines flying from Washington to Brussels, favored for both non-stop and one-stop flights. Many travelers opt for convenient layovers at Dublin Airport (DUB, approximately 1 hour 45 minutes), Kastrup Airport (CPH, around 2 hours), and Keflavik International Airport (KEF, about 1 hour 15 minutes). This variety allows you to balance price, total travel time, and cabin class while crafting the ideal itinerary for your journey.

  • United: This comprehensive carrier provides both non-stop and one-stop options, with one-way fares generally ranging from $270 to $1230. United accounts for about 40% of departures on this route, offering a typical non-stop flight duration of 7 hours and 30 minutes.
  • Aer Lingus: A full-service airline that specializes in one-stop flights, Aer Lingus typically offers one-way tickets priced between $260 and $680. They represent around 14% of departures on this route, featuring an in-flight duration of 9 hours and 15 minutes, with a total travel time of approximately 10 hours and 45 minutes, including the layover.
  • SAS: This full-service airline also provides one-stop service, with one-way fares commonly ranging from $260 to $595. SAS accounts for roughly 13% of flights on this route, with an in-flight time of 9 hours and 15 minutes, leading to a total journey duration of about 10 hours and 45 minutes, factoring in the layover.
  • Icelandair: Another full-service option offering one-stop flights, Icelandair's one-way fares typically span from $240 to $1050. They make up around 9% of departures on this route, with an in-flight duration of 9 hours and 15 minutes and a total journey time of roughly 10 hours and 45 minutes, including layover time.
  • TAP Portugal: This full-service carrier provides one-stop service, with one-way fares generally ranging from $275 to $695. TAP Portugal accounts for about 7% of departures on this route, featuring an in-flight time of 9 hours and 15 minutes, culminating in a total travel duration of approximately 10 hours and 45 minutes, including the layover.

Travelers flying from Washington to Brussels can opt for an upgrade, with United Airlines providing Business Class and Premium Economy service on this route for enhanced comfort and amenities.

Best time to fly from Washington (IAD) to Brussels (BRU)

The most popular months for travelers flying from Washington to Brussels are March, April, and July, when peak temperatures in Brussels reach up to 65.8°F in July. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 38.3°F. For better deals, August usually offers the lowest average one-way fare around $430. Flight availability peaks in March, May, August, and December, with approximately 11 flights per week, making it easier to find convenient departure times. October has the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: August usually offers good deals with average one-way fare around $430, roughly 26% cheaper than the yearly average.
  • More budget-friendly months to fly: January, November, and May typically offer average one-way fares of around $456.
  • Most flight options: March, May, August, and December have the highest number of flights from Washington to Brussels, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January38.3°F (3.5°C)Low8$450
February39.6°F (4.2°C)Average9$673
March44.4°F (6.9°C)High11$624
April50.2°F (10.1°C)High10$627
May55.9°F (13.3°C)Average11$463
June62.8°F (17.1°C)Average9$719
July65.8°F (18.8°C)High9$538
August65.7°F (18.7°C)Average11$430
September60.4°F (15.8°C)Average10$630
October53.6°F (12.0°C)Low7$843
November45.9°F (7.7°C)Low8$451
December40.6°F (4.8°C)Average11$593

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Washington (IAD) to Brussels (BRU)

  • Washington to Antwerp (IAD-ANR): Antwerp International Airport (ANR) is located approximately 20 miles from Brussels - National Airport (BRU), making it a convenient option for travelers.
  • Washington to Brussels (DCA-BRU): Ronald Reagan Washington National Airport (DCA) is about 23 miles from Washington Dulles International Airport (IAD), providing easy access to the capital region.
  • Washington to Charleroi (IAD-CRL): Brussels South Charleroi Airport (CRL) is roughly 30 miles away from Brussels - National Airport (BRU), serving as an alternative gateway to Belgium.

How to find the best prices for flights from Washington (IAD) to Brussels (BRU)

Getting some of the best deals on flights from Washington to Brussels is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, which coincides with when most travelers make their reservations. Evening departures (6 PM to 12 AM) often offer lower prices, although afternoon flights (12 PM to 6 PM) are more popular. Additionally, flying on Wednesday typically results in cheaper prices, while Monday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Brussels - National Airport from Washington Dulles International Airport

Brussels welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Washington Dulles International Airport is roughly a 40-minute drive (covering about 29 miles) from central Washington. Brussels city center is approximately a 15-minute drive (covering about 10 miles) from Brussels - National Airport, depending on traffic. Here's how to reach Brussels efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Brussels, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Brussels - National Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Brussels - National Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Brussels National Airport, the Zaventem Brussels-National-Airport Railway Station is conveniently located just 0.1 miles away on foot, offering easy train access. For metro connections, the Eurocontrol Tram Stop is about 3.3 miles from the airport by car, while Montreux Seaport, a seaport, is approximately 8.4 miles away by car.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) cost?
You can find cheap one-way flights from $242 and cheap return flights from $539 Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) with Expedia. One-way flights generally range between $590 and $7145, and roundtrip flights usually range from $831 to $5823. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
The cheapest month to fly from IAD to BRU is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
Choose from 2 airlines operating direct flights from IAD to BRU:

  • United operates around 7 direct flights from IAD to BRU every week
  • Brussels Airlines operates around 7 direct flights from IAD to BRU every week

What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
United is one of the cheapest airlines offering nonstop flights from Washington Dulles Intl. (IAD) to Brussels - National (BRU), with round-trip tickets starting from around $672. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National), 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 airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
The best airline to fly with from Washington, DC (IAD) to Brussels (BRU) will differ from traveler to traveler. If you like to fly early, Brussels Airlines offers early morning flights. If price is the most important factor, Brussels Airlines typically offers the lowest fares. United offers the most daily flights from IAD to BRU, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
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.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
There are approximately 1 nonstop flights per day from Washington Dulles Intl. (IAD) to Brussels - National (BRU). For more options, look at flights that include layovers.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
The earliest flight from Washington Dulles International Airport (IAD) to Brussels - National Airport (BRU) typically departs at around 6:00 AM. This seasonal service operates in April and May, allowing you to maximize your time in Brussels. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
The most popular departure times for flights from Washington, DC (IAD) to Brussels (BRU) are in the late afternoon to early evening, from 3pm to 6pm. About 46% of passengers prefer this time window. Many major carriers, including United Airlines and Brussels Airlines, offer flights during this window. This timing is popular because it allows travelers to spend the day in Washington before heading to Brussels.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
Flying nonstop from IAD to BRU takes around 7 hours 30 minutes, with the route covering approximately 3,881 miles. Flights with a layover typically take 6 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
Business class seats are offered on the IAD to BRU route. Airlines that offer business class service on this route include:

  • Iberia
  • Lufthansa
  • Turkish Airlines
  • British Airways
  • United Airlines
  • Brussels Airlines
  • SAS
  • TAP Portugal
  • Icelandair
  • KLM

First class is available with Lufthansa and Swiss International Air Lines.
How much is a business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
A direct, return business class ticket from Washington, DC (IAD) to Brussels (BRU) typically costs between $6,912 - $7,762 per adult. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) 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 Brussels from Washington Dulles Intl. (IAD)?
If you're planning to travel to Brussels from Washington Dulles Intl. (IAD), you can fly into Brussels - National (BRU) Some flights may connect through major hubs like Pearson Intl. (YYZ), Charlotte-Douglas Intl. (CLT), Detroit Metropolitan Wayne County (DTW) before reaching Brussels. 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 Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) 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 Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) Brussels Vacation Packages 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 Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Brussels (BRU-Brussels - National) 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
Washington Dulles Intl.
Destination airport
Brussels - National
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$538
Distance
3880 mi
Average flight time
13 hours 42 mins

Book with confidence

Washington to Brussels Flights

The cheapest times to fly from Washington to Brussels

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

 

The best time to book a flight from Washington to Brussels

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

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 Brussels in 2026. You can also book with separate airlines for your outbound and return journeys, from $242 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 Brussels 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 Brussels 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 Brussels Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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