AirHint found the following cheapest return flights from Montreal (YUL) to Brussels (BRU) in May 2026 (see full year).

Return flights

03 May - 10 May	Lufthansa
04 May - 11 May	TAP
06 May - 13 May	TAP
11 May - 18 May	TAP
13 May - 20 May	TAP
18 May - 25 May	TAP
03 May - 17 May	TAP
10 May - 17 May	TAP
17 May - 24 May	TAP
24 May - 31 May	TAP
26 May - 02 Jun	Air Transat
25 May - 01 Jun	Air Transat
26 May - 02 Jun	Brussels Airlines	direct
27 May - 03 Jun	Brussels Airlines	direct
25 May - 01 Jun	Brussels Airlines	direct
28 May - 04 Jun	Brussels Airlines	direct
29 May - 05 Jun	Brussels Airlines	direct
30 May - 06 Jun	Lufthansa

Also check the deals for one-way flights from Montreal to Brussels in May.

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 Montreal to Brussels in May from $533

Return flights