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

Return flights

07 May - 14 May	Alaska Airlines
06 May - 13 May	Condor
01 May - 08 May	Alaska Airlines
02 May - 09 May	Alaska Airlines
03 May - 10 May	Condor
12 May - 27 May	Condor
12 May - 24 May	British Airways
13 May - 24 May	British Airways
25 May - 01 Jun	Condor
24 May - 31 May	Icelandair
21 May - 28 May	Condor
25 May - 08 Jun	Icelandair
28 May - 11 Jun	WestJet

Also check the deals for one-way flights from Seattle 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 Seattle to Athens in May from 551€

Return flights