Cheapest return flights from Chicago to London in April from $521

Best time to book flights for Chicago (MDW) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Chicago (MDW) to London (LGW) in April 2025 (see full year).

Return flights

08 Apr - 27 Apr Frontier Airlines
08 Apr - 07 May Frontier Airlines
11 Apr - 23 Apr Frontier Airlines
13 Apr - 30 Apr Frontier Airlines
04 Apr - 18 Apr Frontier Airlines
13 Apr - 18 Apr Frontier Airlines
14 Apr - 18 Apr Frontier Airlines
09 Apr - 14 Apr Frontier Airlines
07 Apr - 14 Apr Frontier Airlines
06 Apr - 14 Apr Frontier Airlines
08 Apr - 14 Apr Frontier Airlines
08 Apr - 09 May Porter Airlines (Canada) Ltd
08 Apr - 08 May Porter Airlines (Canada) Ltd
30 Apr - 21 May Porter Airlines (Canada) Ltd
28 Apr - 06 May Porter Airlines (Canada) Ltd
28 Apr - 22 May Porter Airlines (Canada) Ltd
05 Apr - 03 May Porter Airlines (Canada) Ltd

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

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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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