Cheapest return flights from Chicago to London in April from 625€

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

Return flights

20 Apr - 29 Apr Frontier Airlines
23 Apr - 04 May Frontier Airlines
29 Apr - 04 May Frontier Airlines
23 Apr - 29 Apr Frontier Airlines
29 Apr - 03 May Frontier Airlines
23 Apr - 26 Apr Frontier Airlines
14 Apr - 22 Apr Frontier Airlines
23 Apr - 27 Apr Frontier Airlines
15 Apr - 29 Apr Frontier Airlines
28 Apr - 03 May Frontier Airlines
14 Apr - 20 Apr Frontier Airlines
13 Apr - 04 May Frontier Airlines
15 Apr - 22 Apr Frontier Airlines
17 Apr - 20 Apr Frontier Airlines
15 Apr - 21 Apr Frontier Airlines
13 Apr - 02 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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