Cheapest return MDW–STN flights, May

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

Return flights

26 May - 12 Jun Porter Airlines (Canada) Ltd
19 May - 15 Jun Porter Airlines (Canada) Ltd
24 May - 20 Jun Porter Airlines (Canada) Ltd
17 May - 14 Jun Porter Airlines (Canada) Ltd
27 May - 03 Jun Porter Airlines (Canada) Ltd
12 May - 19 May Porter Airlines (Canada) Ltd
12 May - 15 May Porter Airlines (Canada) Ltd
16 May - 14 Jun Porter Airlines (Canada) Ltd
12 May - 01 Jun Porter Airlines (Canada) Ltd
31 May - 09 Jun Porter Airlines (Canada) Ltd
30 May - 10 Jun Porter Airlines (Canada) Ltd
13 May - 09 Jun Porter Airlines (Canada) Ltd
12 May - 16 May Porter Airlines (Canada) Ltd
08 May - 28 May Frontier Airlines
19 May - 29 May Porter Airlines (Canada) Ltd
09 May - 15 May Porter Airlines (Canada) Ltd
13 May - 22 May Porter Airlines (Canada) Ltd
09 May - 18 May Porter Airlines (Canada) Ltd
16 May - 30 May Porter Airlines (Canada) Ltd
10 May - 11 May Porter Airlines (Canada) Ltd

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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