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

Return flights

28 Mar - 04 Apr	Air Serbia
17 Mar - 24 Mar	Lufthansa
16 Mar - 24 Mar	SWISS
03 Mar - 18 Mar	Lufthansa
10 Mar - 18 Mar	SWISS
08 Mar - 10 Mar	Lufthansa
23 Mar - 30 Mar	SWISS
10 Mar - 24 Mar	SWISS
17 Mar - 31 Mar	SWISS
08 Mar - 16 Mar	SWISS
17 Mar - 26 Mar	Virgin Atlantic
31 Mar - 07 Apr	Frontier Airlines
31 Mar - 04 Apr	Frontier Airlines
14 Mar - 16 Apr	Spirit Airlines
29 Mar - 12 Apr	Spirit Airlines
25 Mar - 01 Apr	Turkish Airlines
25 Mar - 02 Apr	Turkish Airlines
30 Mar - 06 Apr	Austrian Airlines
27 Mar - 04 Apr	Frontier Airlines
29 Mar - 05 Apr	Turkish Airlines

Also check the deals for one-way flights from Chicago to Athens in March.

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 March from 443€

Return flights