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

Return flights

30 Mar - 06 Apr	Austrian Airlines
17 Mar - 24 Mar	WestJet
02 Mar - 09 Mar	WestJet
04 Mar - 11 Mar	WestJet
06 Mar - 13 Mar	WestJet
08 Mar - 15 Mar	WestJet
10 Mar - 17 Mar	WestJet
18 Mar - 25 Mar	WestJet
01 Mar - 08 Mar	WestJet
07 Mar - 14 Mar	WestJet
19 Mar - 26 Mar	WestJet
26 Mar - 02 Apr	WestJet
25 Mar - 01 Apr	WestJet
27 Mar - 03 Apr	WestJet
31 Mar - 07 Apr	Lufthansa
29 Mar - 05 Apr	WestJet
28 Mar - 04 Apr	Lufthansa

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

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 March from 704€

Return flights