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

Return flights

31 Mar - 07 Apr	Delta
10 Mar - 17 Mar	Delta
04 Mar - 11 Mar	Air France
03 Mar - 10 Mar	Delta
09 Mar - 16 Mar	KLM
24 Mar - 31 Mar	Air France
05 Mar - 12 Mar	Air France
02 Mar - 09 Mar	Delta
11 Mar - 18 Mar	KLM
16 Mar - 23 Mar	Air France
23 Mar - 30 Mar	Delta
25 Mar - 01 Apr	KLM
26 Mar - 02 Apr	Delta
29 Mar - 05 Apr	Delta
30 Mar - 06 Apr	Air France
27 Mar - 03 Apr	Delta
28 Mar - 06 Apr	Delta
28 Mar - 04 Apr	Delta
31 Mar - 04 Apr	Delta

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 471€

Return flights