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

Return flights

24 Aug - 09 Sep	Spirit Airlines
27 Aug - 03 Sep	Spirit Airlines
13 Aug - 20 Aug	Air France
19 Aug - 26 Aug	Iberia
12 Aug - 19 Aug	British Airways
25 Aug - 01 Sep	British Airways
26 Aug - 02 Sep	United
21 Aug - 28 Aug	Air Canada
22 Aug - 29 Aug	Air France
28 Aug - 04 Sep	Air France
15 Aug - 22 Aug	Air Canada
14 Aug - 21 Aug	Delta
18 Aug - 25 Aug	Delta
29 Aug - 05 Sep	Spirit Airlines
16 Aug - 23 Aug	Air Canada
06 Aug - 13 Aug	Spirit Airlines
30 Aug - 13 Sep	Frontier Airlines
30 Aug - 06 Sep	Frontier Airlines

Also check the deals for one-way flights from Austin 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 Austin to Athens in August from $619

Return flights