Cheapest return ORD–ATH flights, May

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

Return flights

11 May - 27 May Lufthansa
26 May - 05 Jun Icelandair
29 May - 09 Jun Icelandair
13 May - 20 May LOT
27 May - 11 Jun Icelandair
27 May - 07 Jun Icelandair
14 May - 19 May LOT
13 May - 24 May Air Serbia
13 May - 25 May Air Serbia
11 May - 27 May Finnair direct
13 May - 20 May Finnair direct
15 May - 22 May LOT
29 May - 14 Jun Icelandair
30 May - 14 Jun Icelandair
16 May - 23 May LOT
16 May - 20 May LOT
28 May - 07 Jun Frontier Airlines
27 May - 06 Jun Icelandair
28 May - 10 Jun Icelandair
24 May - 20 Jun SWISS

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

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