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

Return flights

20 Jul - 27 Jul	Air Serbia
13 Jul - 20 Jul	Air Serbia
11 Jul - 18 Jul	Air Serbia
22 Jul - 29 Jul	Air Serbia
15 Jul - 29 Jul	Air Serbia
27 Jul - 12 Aug	SWISS
18 Jul - 25 Jul	Air Serbia
30 Jul - 22 Aug	LOT
01 Jul - 08 Jul	Air Serbia
25 Jul - 01 Aug	TAP
21 Jul - 28 Jul	Virgin Atlantic
06 Jul - 16 Aug	Air Serbia
18 Jul - 01 Aug	Air Serbia
22 Jul - 01 Aug	Air Serbia
17 Jul - 24 Jul	Lufthansa
20 Jul - 03 Aug	Air Serbia
01 Jul - 15 Jul	Air Serbia
31 Jul - 14 Aug	LOT
30 Jul - 10 Aug	LOT
01 Jul - 01 Aug	Air Serbia

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 639€

Return flights