United's Polaris offers lie-flat seats and Saks Fifth Avenue bedding for ultimate comfort.
Premium Plus includes extra legroom seats, upgraded meals, and priority check-in on international flights.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $561 (Scandinavian Airlines) |
One-way from | $325 (Kiwi.com) |
Popular in | April |
Cheapest in | May |
Average price | $624 |
Good round-trip deal | $785 or less |
Good one-way deal | $796 or less |
Fly from
Fly to
Route
Depart
Return
Price
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Sun 3/15
3:10 pm-6:15 pm
1 stop32h 05m
Washington, D.C. Dulles Intl
Sat 3/21
9:30 pm-10:50 am
2 stops32h 20m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Thu 12/4
6:00 am-3:15 pm
1 stop15h 15m
Washington, D.C. Dulles Intl
Sun 12/7
10:30 pm-11:50 pm
1 stop19h 20m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Mon 2/16
10:20 am-5:15 pm
1 stop12h 55m
Washington, D.C. Dulles Intl
Sat 2/21
8:30 pm-9:40 am
1 stop31h 10m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Sun 3/15
12:50 pm-7:30 pm
1 stop11h 40m
Washington, D.C. Dulles Intl
Sat 3/21
8:40 pm-11:55 am
1 stop10h 15m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Fri 12/26
11:50 am-9:00 pm
1 stop15h 10m
Washington, D.C. Dulles Intl
Sun 1/11
10:30 pm-5:05 pm
1 stop12h 35m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Thu 3/5
10:20 am-7:11 pm
2 stops14h 51m
Washington, D.C. Dulles Intl
Mon 3/9
9:30 pm-9:40 am
1 stop31h 10m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Mon 2/16
10:30 am-8:15 pm
1 stop15h 45m
Washington, D.C. Dulles Intl
Sun 2/22
6:20 pm-1:15 pm
1 stop12h 55m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Sat 3/14
7:00 am-8:54 pm
2 stops18h 54m
Washington, D.C. Dulles Intl
Sat 3/21
1:13 pm-1:15 pm
2 stops19h 02m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Sat 2/14
7:00 am-2:35 pm
1 stop13h 35m
Washington, D.C. Dulles Intl
Sat 2/21
6:20 pm-1:15 pm
1 stop12h 55m
BrusselsWashington, D.C.
BRU - IAD
BRUIAD
Brussels Bruxelles-National
Mon 2/16
2:25 pm-8:15 pm
1 stop11h 50m
Washington, D.C. Dulles Intl
Sun 2/22
5:45 pm-7:15 am
Nonstop7h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, June is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport (average of $419). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $528). 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.
It’s optimal to fly from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the morning.
About 17% of weekly flights between Brussels and Washington, D.C. have experienced delays in the past year, with the average delay time being 148 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Sunday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
London (LHR) – chosen by Cheapflights users on 50% of 1-stop itineraries from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $553.
Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 10h 55m.
Flights via Rome (FCO) offer the fastest connection on this route, with an average layover time of 1h 10m.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
Sebrena,Oct 2025
IAH - RSW
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
Sebrena,Oct 2025
IAH - RSW
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
Sebrena,Oct 2025
IAH - RSW
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
Sebrena,Oct 2025
IAH - RSW
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$456 | Average$558 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$470 | Average$648 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$496 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$528 | Average$764 | FlexibilityNo cancel fee | On-time76% |