Cheapest return flights from Chicago to London in August from $580

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

Return flights

19 Aug - 26 Aug American Airlines
04 Aug - 20 Aug American Airlines
12 Aug - 19 Aug Aer Lingus
12 Aug - 19 Aug Finnair direct
19 Aug - 26 Aug Iberia direct
03 Aug - 13 Aug Aer Lingus
05 Aug - 13 Aug Aer Lingus
03 Aug - 12 Aug Aer Lingus
04 Aug - 20 Aug Iberia direct
26 Aug - 30 Aug Air Canada
28 Aug - 04 Sep Scandinavian Airlines
27 Aug - 01 Sep Scandinavian Airlines
27 Aug - 01 Sep British Airways direct
28 Aug - 04 Sep British Airways direct

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

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