Cheapest return flights from Seattle to Athens in September from $619

Best time to book flights for Seattle (SEA) to Athens (ATH) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Athens (ATH) in September 2025 (see full year).

Return flights

10 Sep - 20 Sep Scandinavian Airlines
03 Sep - 10 Sep Scandinavian Airlines
05 Sep - 13 Sep Scandinavian Airlines
28 Sep - 13 Oct British Airways
20 Sep - 27 Sep British Airways
08 Sep - 22 Sep Turkish Airlines
10 Sep - 17 Sep Scandinavian Airlines
11 Sep - 25 Sep Condor

Also check the deals for one-way flights from Seattle to Athens 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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