AirHint found the following cheapest return flights from San Francisco (SFO) to Athens (ATH) in May 2026 (see full year).

Return flights

06 May - 20 May	Air Canada
12 May - 21 May	United
04 May - 18 May	Scandinavian Airlines
07 May - 21 May	Scandinavian Airlines
19 May - 26 May	Scandinavian Airlines
03 May - 17 May	Lufthansa
26 May - 02 Jun	Condor
30 May - 06 Jun	Air Transat
30 May - 20 Jun	Air Transat
27 May - 03 Jun	Alaska Airlines
15 May - 06 Jun	Scandinavian Airlines
31 May - 07 Jun	Condor
28 May - 04 Jun	British Airways
29 May - 05 Jun	Alaska Airlines
08 May - 16 May	Delta

Also check the deals for one-way flights from San Francisco to Athens in May.

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 San Francisco to Athens in May from 476€

Return flights