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

Return flights

04 Mar - 11 Mar	Aeromexico
08 Mar - 18 Mar	Aeromexico
09 Mar - 17 Mar	Viva
25 Mar - 08 Apr	Aeromexico
08 Mar - 15 Mar	Aeromexico
15 Mar - 31 Mar	Viva
21 Mar - 28 Mar	Viva
22 Mar - 26 Mar	Aeromexico
31 Mar - 10 Apr	Aeromexico
26 Mar - 12 Apr	Aeromexico
20 Mar - 27 Mar	Aeromexico
27 Mar - 10 Apr	Volaris
28 Mar - 10 Apr	Volaris
28 Mar - 07 Apr	Volaris
28 Mar - 06 Apr	Volaris
27 Mar - 04 Apr	Viva
28 Mar - 05 Apr	Viva

Also check the deals for one-way flights from Mexico City 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 Mexico City to Keflavik in March from 607€

Return flights