Cheapest one-way flights from Chicago to Berlin in September from $231

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

One-Way flights

10 Sep Spirit Airlines
07 Sep Frontier Airlines
06 Sep Frontier Airlines
24 Sep Spirit Airlines
25 Sep Spirit Airlines
09 Sep Spirit Airlines
13 Sep Frontier Airlines
19 Sep Frontier Airlines
04 Sep jetBlue
18 Sep Spirit Airlines

Also check the deals for return flights from Chicago to Berlin 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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