Cheapest return flights from Chicago to London in July from $605

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

Return flights

28 Jul - 25 Aug Icelandair
18 Jul - 12 Aug Icelandair
30 Jul - 14 Aug Aer Lingus
31 Jul - 13 Aug Icelandair
31 Jul - 12 Aug Icelandair
28 Jul - 25 Aug American Airlines direct
23 Jul - 06 Aug Aer Lingus
22 Jul - 07 Aug Aer Lingus
31 Jul - 13 Aug Finnair direct
08 Jul - 16 Jul Spirit Airlines
08 Jul - 17 Jul Spirit Airlines
08 Jul - 15 Jul Spirit Airlines
25 Jul - 15 Aug British Airways direct
21 Jul - 31 Jul Spirit Airlines
01 Jul - 08 Jul jetBlue
07 Jul - 16 Jul Aer Lingus
08 Jul - 24 Jul Aer Lingus
09 Jul - 17 Jul Aer Lingus
15 Jul - 22 Jul Spirit Airlines
16 Jul - 21 Jul Spirit Airlines

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

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

Feel free to contact us with any feedback or request another flight research.