Cheapest return flights from Chicago to London in August from 545€

Best time to book flights for Chicago (ORD) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in August 2025 (see full year).

Return flights

24 Aug - 03 Sep Scandinavian Airlines
18 Aug - 19 Sep Scandinavian Airlines
22 Aug - 29 Aug Iberia direct
14 Aug - 28 Aug Finnair
18 Aug - 19 Sep Iberia direct
14 Aug - 28 Aug Iberia direct
24 Aug - 03 Sep Iberia direct
08 Aug - 19 Aug Iberia
12 Aug - 24 Aug Iberia direct
04 Aug - 25 Aug Iberia direct
07 Aug - 24 Aug Iberia direct
20 Aug - 24 Aug Iberia direct
20 Aug - 27 Aug Delta
27 Aug - 03 Sep Delta
01 Aug - 18 Aug British Airways
25 Aug - 01 Sep Delta
29 Aug - 01 Sep Scandinavian Airlines
31 Aug - 07 Sep Delta
28 Aug - 04 Sep Delta
29 Aug - 01 Sep Iberia direct

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

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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