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

Return flights

05 Mar - 12 Mar	British Airways
12 Mar - 19 Mar	British Airways
19 Mar - 26 Mar	British Airways
26 Mar - 02 Apr	Lufthansa
31 Mar - 07 Apr	Lufthansa
30 Mar - 06 Apr	Austrian Airlines
02 Mar - 09 Mar	WestJet
09 Mar - 16 Mar	WestJet
10 Mar - 17 Mar	WestJet
23 Mar - 30 Mar	WestJet
24 Mar - 31 Mar	WestJet
25 Mar - 01 Apr	WestJet
29 Mar - 05 Apr	WestJet
08 Mar - 15 Mar	Porter Airlines (Canada) Ltd
03 Mar - 10 Mar	Porter Airlines (Canada) Ltd
28 Mar - 04 Apr	WestJet
27 Mar - 03 Apr	Air Transat

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Montreal to Keflavik in March from $784

Return flights