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

Return flights

01 May - 23 May	Porter Airlines (Canada) Ltd
16 May - 06 Jun	Porter Airlines (Canada) Ltd
31 May - 20 Jun	Porter Airlines (Canada) Ltd
16 May - 23 May	Delta
25 May - 01 Jun	Virgin Atlantic
23 May - 30 May	Delta
22 May - 31 May	Delta
25 May - 20 Jun	Virgin Atlantic
07 May - 14 May	Virgin Atlantic
13 May - 20 May	Virgin Atlantic
08 May - 15 May	Virgin Atlantic
15 May - 22 May	Virgin Atlantic
01 May - 24 May	Air France
06 May - 13 May	Delta

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

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 May from $914

Return flights