AirHint found the following cheapest return flights from Washington (IAD) to Brussels (BRU) in November 2025 (see full year).

Return flights

05 Nov - 27 Nov	Scandinavian Airlines
09 Nov - 17 Nov	Aer Lingus
04 Nov - 11 Nov	United
19 Nov - 26 Nov	United	direct
05 Nov - 27 Nov	United	direct
30 Nov - 14 Dec	TAP
07 Nov - 14 Nov	Icelandair
09 Nov - 16 Nov	United	direct
14 Nov - 21 Nov	United
07 Nov - 14 Nov	United	direct
09 Nov - 17 Nov	United	direct
30 Nov - 14 Dec	United	direct
24 Nov - 01 Dec	United
29 Nov - 06 Dec	United

Also check the deals for one-way flights from Washington to Brussels in November.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Washington to Brussels in November from 382€

Return flights