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

Return flights

18 Jul - 20 Jul	Condor
27 Jul - 03 Aug	Condor
29 Jul - 05 Aug	Spirit Airlines
28 Jul - 04 Aug	Air Canada
30 Jul - 06 Aug	Delta
31 Jul - 07 Aug	British Airways
25 Jul - 01 Aug	Frontier Airlines
09 Jul - 20 Jul	Condor
26 Jul - 02 Aug	Air Canada
06 Jul - 13 Jul	Condor
02 Jul - 18 Jul	Icelandair
02 Jul - 09 Jul	Air Canada

Also check the deals for one-way flights from Portland 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 Portland to Athens in July from $792

Return flights