Cheapest one-way flights from Chicago to London in May from 311€

AirHint found the following cheapest one-way flights from Chicago (MDW) to London (LGW) in May 2026 (see full year).

One-Way flights

01 May Frontier Airlines
04 May Frontier Airlines
03 May Frontier Airlines
26 May Porter Airlines (Canada) Ltd
08 May Frontier Airlines
05 May Porter Airlines (Canada) Ltd
27 May Porter Airlines (Canada) Ltd
21 May Porter Airlines (Canada) Ltd
06 May Frontier Airlines
20 May Porter Airlines (Canada) Ltd

Also check the deals for return 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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