Polaris offers lie-flat seats with Saks Fifth Avenue bedding and noise-reducing headphones.
Premium Plus includes 2 checked bags, priority check-in, and upgraded meals on international flights.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $481 (FlightHub) |
One-way from | $258 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $1,804 |
Good round-trip deal | $898 or less |
Good one-way deal | $650 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Mon 2/2
8:30 pm-7:50 pm
1 stop17h 20m
Brussels Bruxelles-National
Fri 2/6
3:10 pm-6:50 pm
1 stop33h 40m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Mon 1/26
4:50 pm-7:50 pm
1 stop21h 00m
Brussels Bruxelles-National
Fri 1/30
3:10 pm-6:50 pm
1 stop33h 40m
Washington, D.C.Brussels
DCA - BRU
DCABRU
Washington, D.C. Reagan-National
Mon 1/19
11:10 am-9:40 am
2 stops16h 30m
Brussels Bruxelles-National
Tue 2/3
10:20 am-10:11 pm
2 stops17h 51m
Washington, D.C.Brussels
DCA - BRU
DCABRU
Washington, D.C. Reagan-National
Sat 2/7
11:11 am-9:40 am
2 stops16h 29m
Brussels Bruxelles-National
Mon 2/16
8:30 pm-10:08 pm
2 stops31h 38m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Tue 2/17
12:23 pm-2:30 pm
2 stops20h 07m
Brussels Bruxelles-National
Mon 3/2
8:30 pm-7:09 pm
2 stops28h 39m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
Thu 2/26
7:40 pm-11:55 am
1 stop10h 15m
Brussels Bruxelles-National
Sun 3/1
12:50 pm-6:40 pm
1 stop11h 50m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Sat 2/21
8:30 pm-9:40 am
1 stop31h 10m
Brussels Bruxelles-National
Fri 3/6
10:20 am-7:09 pm
2 stops14h 49m
Washington, D.C.Brussels
DCA - BRU
DCABRU
Washington, D.C. Reagan-National
Mon 3/9
11:00 am-9:40 am
2 stops17h 40m
Brussels Bruxelles-National
Fri 3/20
10:20 am-10:36 pm
2 stops17h 16m
Washington, D.C.Brussels
DCA - BRU
DCABRU
Washington, D.C. Reagan-National
Fri 1/9
11:10 am-9:40 am
2 stops16h 30m
Brussels Bruxelles-National
Sun 1/18
10:20 am-10:48 pm
2 stops18h 28m
Washington, D.C.Brussels
DCA - BRU
DCABRU
Washington, D.C. Reagan-National
Fri 1/9
11:10 am-2:30 pm
2 stops21h 20m
Brussels Bruxelles-National
Fri 1/16
10:20 am-10:11 pm
2 stops17h 51m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
The best time to book flights from Washington, D.C. to Brussels Bruxelles-National Airport is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Brussels Bruxelles-National Airport (average of $406). Flying from Washington, D.C. to Brussels Bruxelles-National Airport in June is currently the most expensive (average of $679). 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.
Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Washington, D.C. to Brussels Bruxelles-National Airport by exploring options for tickets in the evening.
The most flights from WAS to BRU are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
Istanbul (IST) – chosen by Cheapflights users on 64% of 1-stop itineraries from Washington, D.C. to Brussels Bruxelles-National Airport on Cheapflights.
Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $654.
Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 10h 20m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 15m.
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
Food
Boarding
Entertainment
Crew
Overall
Comfort
Reviews
Anonymous,Jun 2025
ATH - CPH
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$408 | Average$719 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$423 | Average$586 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$432 | Average$764 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$480 | Average$713 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$480 | Average$784 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$511 | Average$704 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$539 | Average$782 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$540 | Average$624 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$555 | Average$803 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$592 | Average$926 | FlexibilityNo cancel fee | On-time69% |