Cheapest return flights from Chicago to London in August from $614

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

Return flights

11 Aug - 26 Aug British Airways direct
10 Aug - 17 Aug Austrian Airlines
14 Aug - 21 Aug Iberia direct
21 Aug - 25 Aug British Airways direct
09 Aug - 29 Aug Iberia direct
27 Aug - 08 Sep Iberia direct
10 Aug - 05 Sep Iberia direct
28 Aug - 02 Sep Iberia
28 Aug - 06 Sep Scandinavian Airlines
10 Aug - 17 Aug Iberia direct
28 Aug - 04 Sep British Airways direct
02 Aug - 15 Aug Air Canada
14 Aug - 05 Sep Iberia direct
28 Aug - 06 Sep British Airways direct
28 Aug - 02 Sep British Airways direct
02 Aug - 15 Aug Iberia direct

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

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