AirHint found the following cheapest return flights from Phoenix (PHX) to Athens (ATH) in August 2025 (see full year).

Return flights

31 Aug - 08 Sep	British Airways
19 Aug - 01 Sep	British Airways
27 Aug - 08 Sep	British Airways
26 Aug - 02 Sep	United
23 Aug - 07 Sep	Delta
14 Aug - 21 Aug	United
20 Aug - 27 Aug	United
28 Aug - 18 Sep	Air Canada
18 Aug - 25 Aug	United
22 Aug - 29 Aug	United
29 Aug - 11 Sep	Frontier Airlines
12 Aug - 19 Aug	United
06 Aug - 13 Aug	United
16 Aug - 23 Aug	United
29 Aug - 07 Sep	Spirit Airlines
24 Aug - 31 Aug	United
28 Aug - 04 Sep	United
08 Aug - 15 Aug	United
02 Aug - 09 Aug	United
30 Aug - 06 Sep	United

Also check the deals for one-way flights from Phoenix to Athens in August.

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 Phoenix to Athens in August from 488€

Return flights