Cheapest return flights from Chicago to London in August from $536

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

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

Return flights

12 Aug - 26 Aug Icelandair
11 Aug - 25 Aug Icelandair
04 Aug - 29 Aug Icelandair
18 Aug - 25 Aug Icelandair
09 Aug - 23 Aug Icelandair
18 Aug - 29 Aug Icelandair
09 Aug - 21 Aug Icelandair
12 Aug - 24 Aug Spirit Airlines
20 Aug - 29 Aug Icelandair
12 Aug - 23 Aug Icelandair
28 Aug - 01 Sep Icelandair
28 Aug - 04 Sep Icelandair
26 Aug - 07 Sep Icelandair
23 Aug - 01 Sep Icelandair

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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