Cheapest return flights from Montreal to Keflavik in May from $605

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

Return flights

30 May - 06 Jun Air Canada
31 May - 07 Jun Air Canada
26 May - 02 Jun Air Canada
08 May - 15 May Lufthansa
20 May - 27 May Air Canada
28 May - 04 Jun Air Canada
05 May - 12 May Lufthansa
11 May - 18 May KLM
25 May - 01 Jun KLM
12 May - 19 May KLM
10 May - 17 May KLM
27 May - 03 Jun Air Canada
29 May - 05 Jun Air Canada
18 May - 25 May Air Canada
01 May - 08 May WestJet
02 May - 09 May WestJet
07 May - 14 May WestJet

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

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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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