United's Polaris Business Class offers lie-flat seats and Saks Fifth Avenue bedding.
United's Premium Plus includes priority check-in and two checked bags on international flights.
Round-trip from | $480 (FlightHub) |
---|---|
One-way from | $270 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $621 |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Sun 10/5
10:05 pm-8:35 pm
2 stops16h 30m
Brussels Bruxelles-National
Thu 10/16
10:20 am-7:59 pm
1 stop15h 39m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Wed 10/8
12:09 pm-6:20 pm
2 stops24h 11m
Brussels Bruxelles-National
Sun 10/19
11:55 am-7:59 pm
2 stops14h 04m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Tue 10/14
12:09 pm-10:15 am
2 stops16h 06m
Brussels Bruxelles-National
Wed 10/29
6:30 am-6:15 pm
2 stops16h 45m
Washington, D.C.Brussels
IAD - CRL
IADCRL
Washington, D.C. Dulles Intl
Sun 11/9
9:45 am-11:40 am
2 stops19h 55m
Charleroi Brussels
Tue 11/18
10:35 am-3:50 pm
2 stops35h 15m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Mon 10/6
12:09 pm-12:00 pm
2 stops17h 51m
Brussels Bruxelles-National
Thu 10/16
7:00 pm-7:59 pm
2 stops30h 59m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Wed 10/8
1:30 pm-5:25 pm
1 stop21h 55m
Brussels Bruxelles-National
Tue 10/14
6:50 pm-11:45 am
1 stop22h 55m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Mon 10/6
9:40 pm-9:20 pm
1 stop17h 40m
Brussels Bruxelles-National
Tue 10/14
2:25 pm-11:45 am
1 stop27h 20m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Wed 10/8
12:09 pm-10:15 am
2 stops16h 06m
Brussels Bruxelles-National
Wed 10/15
10:20 am-7:59 pm
1 stop15h 39m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Sun 10/5
1:30 pm-1:25 pm
1 stop17h 55m
Brussels Bruxelles-National
Wed 10/15
6:50 pm-11:45 am
1 stop22h 55m
Washington, D.C.Brussels
IAD - BRU
IADBRU
Washington, D.C. Dulles Intl
Mon 10/6
10:05 pm-6:30 pm
1 stop14h 25m
Brussels Bruxelles-National
Wed 10/15
10:55 am-7:59 pm
2 stops15h 04m
The best time to book flights from Washington, D.C. Dulles Intl Airport to Brussels is 74 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Brussels (average of $614). Flying from Washington, D.C. Dulles Intl Airport to Brussels in June is currently the most expensive (average of $1,077). 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.
One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Brussels is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 49% on airfare.
The most flights from IAD to BR1 are scheduled on a Thursday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Boarding
Entertainment
Food
Overall
Comfort
Crew
Reviews
Kent,Aug 2025
CPH - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$410 | Average$564 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$441 | Average$737 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$492 | Average$953 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$496 | Average$748 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$551 | Average$650 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$555 | Average$752 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$561 | Average$783 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$601 | Average$979 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$633 | Average$1,040 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$686 | Average$1,075 | FlexibilityNo cancel fee | On-time76% |