Cheapest return flights from Mexico City to Keflavik in September from $1057

Best time to book flights for Mexico City (MEX) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Mexico City (MEX) to Keflavik (KEF) in September 2025 (see full year).

Return flights

12 Sep - 19 Sep Arajet
23 Sep - 02 Oct Air Canada
22 Sep - 03 Oct Air Canada
11 Sep - 21 Sep Air Canada
29 Sep - 09 Oct Delta
13 Sep - 21 Sep Air Canada
04 Sep - 15 Sep Air Canada
09 Sep - 16 Sep Air Canada
26 Sep - 03 Oct Air Canada
12 Sep - 21 Sep Air Canada
04 Sep - 14 Sep Air Canada
15 Sep - 21 Sep Air France

Also check the deals for one-way flights from Mexico City to Keflavik in September.

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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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