Cheapest return flights from Chicago to London in May from 522€

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 May 2025 (see full year).

Return flights

20 May - 28 May Spirit Airlines
16 May - 30 May Spirit Airlines
01 May - 08 May Spirit Airlines
04 May - 10 May Spirit Airlines
02 May - 07 May Icelandair
06 May - 13 May Spirit Airlines
02 May - 06 May Spirit Airlines
06 May - 09 May Aer Lingus
11 May - 21 May Finnair
02 May - 05 May Spirit Airlines
14 May - 05 Jun Aer Lingus
17 May - 08 Jun Aer Lingus
19 May - 08 Jun Finnair
20 May - 08 Jun American Airlines
16 May - 01 Jun Air Canada
19 May - 13 Jun Delta
14 May - 05 Jun British Airways direct
20 May - 01 Jun United
20 May - 02 Jun United
18 May - 02 Jun United

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.

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