Cheapest return flights from Chicago to London in August from 587€

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

18 Aug - 26 Aug Icelandair
12 Aug - 19 Aug Icelandair
18 Aug - 25 Aug Icelandair
20 Aug - 27 Aug Icelandair
25 Aug - 02 Sep Icelandair
06 Aug - 20 Aug Icelandair
05 Aug - 20 Aug Icelandair
21 Aug - 04 Sep Delta
17 Aug - 24 Aug Icelandair
14 Aug - 24 Aug Icelandair
13 Aug - 20 Aug Aer Lingus
02 Aug - 13 Aug TAP
30 Aug - 06 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.

Book a cheap hotel in London

Cheap car rent in London