AirHint found the following cheapest return flights from Chicago (MDW) to Athens (ATH) in August 2026 (see full year).

Return flights

26 Aug - 02 Sep	Air France
27 Aug - 03 Sep	Delta
18 Aug - 25 Aug	Air France
19 Aug - 26 Aug	Air France
20 Aug - 27 Aug	Air France
21 Aug - 28 Aug	Air France
02 Aug - 09 Aug	Air France
03 Aug - 10 Aug	Air France
24 Aug - 31 Aug	Delta
23 Aug - 30 Aug	Delta
22 Aug - 29 Aug	Air France
28 Aug - 04 Sep	Condor
20 Aug - 12 Sep	Virgin Atlantic

Also check the deals for one-way flights from Chicago 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 Chicago to Athens in August from 768€

Return flights