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

Return flights

07 Mar - 16 Mar	easyJet
07 Mar - 17 Mar	easyJet
09 Mar - 16 Mar	easyJet
02 Mar - 10 Mar	Wizz Air UK
09 Mar - 19 Mar	Wizz Air UK
02 Mar - 09 Mar	Wizz Air UK
07 Mar - 11 Mar	easyJet
13 Mar - 17 Mar	easyJet
13 Mar - 16 Mar	easyJet
07 Mar - 12 Mar	easyJet
27 Mar - 07 Apr	Ryanair
29 Mar - 05 Apr	Wizz Air UK
28 Mar - 04 Apr	Ryanair
28 Mar - 05 Apr	Ryanair
22 Mar - 02 Apr	Wizz Air UK
21 Mar - 02 Apr	easyJet
27 Mar - 01 Apr	Ryanair
29 Mar - 03 Apr	easyJet
19 Mar - 02 Apr	easyJet
25 Mar - 03 Apr	easyJet

Also check the deals for one-way flights from Athens 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 Athens to Keflavik in March from 156€

Return flights