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

Return flights

05 May - 12 May	Air Canada
04 May - 11 May	Lufthansa
06 May - 13 May	Air Canada
19 May - 26 May	British Airways
14 May - 21 May	SWISS
13 May - 20 May	Air Canada
18 May - 25 May	Air Canada
11 May - 18 May	Air Canada
12 May - 19 May	Air Canada
20 May - 27 May	British Airways
26 May - 02 Jun	Air Transat
27 May - 03 Jun	Air Transat
28 May - 04 Jun	Air Transat
31 May - 07 Jun	Air Transat
25 May - 01 Jun	Air Transat
22 May - 05 Jun	Lufthansa
29 May - 05 Jun	Air Transat
30 May - 06 Jun	British Airways

Also check the deals for one-way flights from Montreal to Oslo 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 Oslo in May from 533€

Return flights