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

Return flights

11 May - 18 May	Air Canada
04 May - 11 May	Air Canada
06 May - 13 May	Air Canada
18 May - 25 May	Air Canada
20 May - 27 May	Air Canada
10 May - 24 May	KLM
03 May - 10 May	SWISS
13 May - 20 May	SWISS
12 May - 19 May	Air Canada
05 May - 12 May	Air Canada
25 May - 01 Jun	Air Canada
27 May - 03 Jun	Air Canada
26 May - 02 Jun	Air Canada
28 May - 04 Jun	Air Canada
26 May - 20 Jun	Air Canada
15 May - 06 Jun	SWISS
07 May - 30 Jun	Air Canada
29 May - 05 Jun	Air Canada
31 May - 07 Jun	FrenchBee
30 May - 06 Jun	KLM

Also check the deals for one-way flights from Montreal to Bucharest 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 Bucharest in May from 537€

Return flights