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

Return flights

24 Jul - 31 Jul	Turkish Airlines
23 Jul - 30 Jul	Turkish Airlines
31 Jul - 07 Aug	Turkish Airlines
25 Jul - 05 Aug	Turkish Airlines
05 Jul - 19 Jul	Turkish Airlines
27 Jul - 03 Aug	Turkish Airlines
05 Jul - 12 Jul	Turkish Airlines
26 Jul - 02 Aug	Turkish Airlines
23 Jul - 29 Jul	SWISS
29 Jul - 05 Aug	Delta
30 Jul - 06 Aug	Delta
22 Jul - 29 Jul	Air France
02 Jul - 09 Jul	Delta
15 Jul - 29 Jul	Delta
28 Jul - 04 Aug	Delta
03 Jul - 10 Jul	Delta
04 Jul - 11 Jul	Delta
30 Jul - 09 Aug	Scandinavian Airlines
25 Jul - 01 Aug	Lufthansa

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

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 July from $597

Return flights