Cheapest return flights from Chicago to London in April from $603

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

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

Return flights

04 Apr - 14 Apr Icelandair
08 Apr - 21 Apr Icelandair
03 Apr - 18 Apr Icelandair
07 Apr - 21 Apr Icelandair
04 Apr - 20 Apr Icelandair
30 Apr - 07 May Spirit Airlines
15 Apr - 21 Apr Icelandair
07 Apr - 12 Apr Icelandair
16 Apr - 23 Apr Icelandair
05 Apr - 16 Apr Icelandair
13 Apr - 19 Apr Icelandair
24 Apr - 01 May Icelandair
29 Apr - 08 May Icelandair
07 Apr - 10 May Spirit Airlines
20 Apr - 03 May SWISS
10 Apr - 01 May Icelandair

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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