Cheapest return flights from Chicago to London in September from 622€

AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in September 2026 (see full year).

Return flights

15 Sep - 22 Sep Turkish Airlines
17 Sep - 01 Oct Turkish Airlines
05 Sep - 12 Sep Scandinavian Airlines
24 Sep - 28 Sep Scandinavian Airlines
10 Sep - 15 Sep Turkish Airlines
07 Sep - 20 Sep Scandinavian Airlines
07 Sep - 14 Sep Scandinavian Airlines
25 Sep - 06 Oct Turkish Airlines
12 Sep - 18 Sep Turkish Airlines
12 Sep - 15 Sep Turkish Airlines
22 Sep - 05 Oct Turkish Airlines
09 Sep - 16 Sep Aer Lingus
23 Sep - 30 Sep Aer Lingus
24 Sep - 06 Oct Scandinavian Airlines
24 Sep - 01 Oct Scandinavian Airlines
16 Sep - 03 Oct Aer Lingus
30 Sep - 10 Oct Aer Lingus
29 Sep - 10 Oct Aer Lingus
25 Sep - 02 Oct Aer Lingus
10 Sep - 04 Oct Turkish Airlines

Also check the deals for one-way flights from Chicago to London in September.

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