Cheapest return flights from Washington to Brussels in September from 445€

AirHint found the following cheapest return flights from Washington (IAD) to Brussels (BRU) in September 2026 (see full year).

Return flights

25 Sep - 09 Oct Scandinavian Airlines
22 Sep - 06 Oct Turkish Airlines
03 Sep - 25 Sep Aer Lingus
22 Sep - 06 Oct Brussels Airlines direct
03 Sep - 21 Sep Aer Lingus
25 Sep - 09 Oct Brussels Airlines direct

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

Powered by

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.

Book a cheap hotel in Brussels

Cheap car rent in Brussels

Feel free to contact us with any feedback or request another flight research.