Cheapest return flights from Chicago to London in May from 463€

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 May 2025 (see full year).

Return flights

04 May - 11 May Icelandair
05 May - 14 May Icelandair
07 May - 18 May Icelandair
05 May - 19 May Icelandair
04 May - 14 May Icelandair
14 May - 18 May Icelandair
02 May - 11 May Icelandair
06 May - 13 May Icelandair
11 May - 17 May Icelandair
04 May - 08 May Icelandair
20 May - 03 Jun Spirit Airlines
29 May - 11 Jun Icelandair
30 May - 06 Jun Air Canada
27 May - 05 Jun Icelandair
30 May - 14 Jun Icelandair
23 May - 01 Jun Icelandair
22 May - 05 Jun Icelandair
28 May - 11 Jun TAP

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

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