AirHint found the following cheapest return flights from Montreal (YUL) to Keflavik (KEF) in June 2026 (see full year).

Return flights

06 Jun - 16 Jun	Air Canada	direct
04 Jun - 16 Jun	Air Canada	direct
11 Jun - 18 Jun	Air Canada	direct
13 Jun - 20 Jun	Air Canada	direct
02 Jun - 09 Jun	Air Canada	direct
04 Jun - 11 Jun	Air Canada	direct
06 Jun - 13 Jun	Air Canada	direct
16 Jun - 23 Jun	Air Canada	direct
09 Jun - 16 Jun	Air Canada
01 Jun - 08 Jun	Air Canada
24 Jun - 01 Jul	Lufthansa
26 Jun - 03 Jul	Lufthansa
27 Jun - 04 Jul	Lufthansa
29 Jun - 06 Jul	Lufthansa
28 Jun - 05 Jul	Lufthansa
25 Jun - 04 Jul	Austrian Airlines
25 Jun - 02 Jul	Lufthansa

Also check the deals for one-way flights from Montreal to Keflavik in June.

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 Keflavik in June from $599

Return flights