Cheapest return flights from Chicago to London in August from $586

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

Return flights

08 Aug - 21 Aug British Airways
10 Aug - 20 Aug SWISS
25 Aug - 02 Sep SWISS
17 Aug - 31 Aug SWISS
12 Aug - 20 Aug SWISS
19 Aug - 02 Sep SWISS
24 Aug - 01 Sep SWISS
24 Aug - 31 Aug SWISS
02 Aug - 11 Aug British Airways
13 Aug - 20 Aug SWISS
02 Aug - 12 Aug SWISS
05 Aug - 12 Aug SWISS
14 Aug - 24 Aug SWISS
27 Aug - 08 Sep SWISS
26 Aug - 10 Sep SWISS
21 Aug - 03 Sep SWISS
29 Aug - 05 Sep SWISS
29 Aug - 12 Sep TAP
21 Aug - 05 Sep TAP
28 Aug - 06 Sep SWISS

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

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