Cheapest return flights from Chicago to London in May from 440€

AirHint found the following cheapest return flights from Chicago (ORD) to London (LGW) in May 2026 (see full year).

Return flights

01 May - 10 May Icelandair
03 May - 10 May Icelandair
14 May - 18 May Icelandair
15 May - 18 May Icelandair
15 May - 19 May Icelandair
13 May - 18 May Icelandair
15 May - 20 May Icelandair
11 May - 15 May Icelandair
07 May - 18 May Icelandair
13 May - 20 May Icelandair
15 May - 06 Jun Icelandair
22 May - 06 Jun WestJet
27 May - 09 Jun Icelandair
23 May - 01 Jun Icelandair
25 May - 12 Jun Icelandair

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

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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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