Cheapest return flights from Chicago to London in March from $503

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 March 2025 (see full year).

Return flights

26 Mar - 01 Apr TAP
07 Mar - 15 Mar TAP
23 Mar - 12 Apr TAP
04 Mar - 11 Mar Icelandair
02 Mar - 20 Apr Icelandair
07 Mar - 19 Apr TAP
16 Mar - 24 Mar Scandinavian Airlines
05 Mar - 30 Apr Icelandair
13 Mar - 24 Mar Turkish Airlines
08 Mar - 22 Mar Icelandair
14 Mar - 22 Mar Icelandair
08 Mar - 05 Apr Turkish Airlines
15 Mar - 23 Mar Scandinavian Airlines

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

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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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