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

Return flights

15 Jul - 22 Jul	Spirit Airlines
28 Jul - 26 Aug	ITA Airways
28 Jul - 21 Aug	Air Canada
28 Jul - 18 Aug	Air Canada
22 Jul - 20 Aug	Spirit Airlines
21 Jul - 29 Aug	United
30 Jul - 23 Aug	Spirit Airlines
16 Jul - 23 Jul	jetBlue
23 Jul - 24 Aug	ITA Airways
30 Jul - 16 Aug	Spirit Airlines
30 Jul - 13 Aug	jetBlue
21 Jul - 24 Aug	Air Canada
22 Jul - 28 Jul	Spirit Airlines
13 Jul - 24 Jul	Spirit Airlines
07 Jul - 25 Jul	ITA Airways
07 Jul - 22 Jul	ITA Airways
07 Jul - 19 Jul	ITA Airways
18 Jul - 20 Jul	jetBlue
17 Jul - 20 Jul	jetBlue
19 Jul - 26 Jul	Spirit Airlines

Also check the deals for one-way flights from Chicago 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 Chicago to Athens in July from $648

Return flights