Cheapest one-way flights from Chicago to Athens in September from 173€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Athens (ATH) in September 2025 (see full year).

One-Way flights

23 Sep Spirit Airlines
06 Sep Frontier Airlines
22 Sep Spirit Airlines
04 Sep Spirit Airlines
08 Sep Spirit Airlines
27 Sep Spirit Airlines
19 Sep Spirit Airlines
01 Sep Spirit Airlines
10 Sep Air Serbia
06 Sep British Airways direct

Also check the deals for return flights from Chicago to Athens in September.

Skyscanner

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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