Cheapest return flights from Washington to Brussels in December from 376€

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

Return flights

11 Dec - 15 Dec Scandinavian Airlines
08 Dec - 15 Dec Scandinavian Airlines
05 Dec - 12 Dec TAP
03 Dec - 10 Dec Scandinavian Airlines
08 Dec - 16 Dec Aer Lingus
30 Dec - 24 Jan Aer Lingus
29 Dec - 21 Jan Aer Lingus
29 Dec - 24 Jan Scandinavian Airlines
14 Dec - 23 Dec TAP
26 Dec - 17 Jan Aer Lingus
25 Dec - 07 Jan Scandinavian Airlines
16 Dec - 10 Jan Aer Lingus
25 Dec - 06 Jan Lufthansa
13 Dec - 20 Dec British Airways
11 Dec - 20 Dec British Airways
28 Dec - 05 Jan British Airways
29 Dec - 05 Jan Royal Air Maroc
02 Dec - 08 Jan British Airways
14 Dec - 23 Dec Brussels Airlines direct
17 Dec - 24 Dec Icelandair

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

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