September is by far the best month, wherein you can get cheapest flights for Washington to Brussels. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.
IAD
22:05
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
15:20
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
20:30
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
12:50
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
16:30
Washington Washington Dulles International Airport
Tue , 02 Sep 2025
BRU
10:40
Brussels Brussels Airport
Wed, 03 Sep 2025
IAD
13:30
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
17:25
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
13:30
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
10:10
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
21:05
Washington Washington Dulles International Airport
Tue , 02 Sep 2025
BRU
17:35
Brussels Brussels Airport
Wed, 03 Sep 2025
IAD
17:45
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
11:00
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
21:05
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
17:35
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
17:20
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
09:40
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
16:30
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
10:40
Brussels Brussels Airport
Tue, 02 Sep 2025
IAD
21:20
Washington Washington Dulles International Airport
Mon , 01 Sep 2025
BRU
07:30
Brussels Brussels Airport
Wed, 03 Sep 2025