Cheapest return flights from Chicago to London in March from 515€

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

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

Return flights

08 Mar - 09 Mar Scandinavian Airlines
10 Mar - 29 Apr Icelandair
17 Mar - 24 Mar Icelandair
26 Mar - 06 Apr Icelandair
06 Mar - 13 Mar Icelandair
09 Mar - 17 Mar Scandinavian Airlines
10 Mar - 16 Mar Scandinavian Airlines
02 Mar - 09 Mar Scandinavian Airlines
02 Mar - 04 Mar TAP
01 Mar - 03 Mar Scandinavian Airlines
01 Mar - 08 Mar jetBlue
04 Mar - 11 Mar Icelandair
26 Mar - 26 Apr Icelandair
27 Mar - 02 Apr Icelandair
27 Mar - 03 Apr jetBlue
18 Mar - 01 Apr Air Canada
23 Mar - 24 Apr Air Canada
29 Mar - 12 Apr jetBlue
26 Mar - 03 Apr Finnair
17 Mar - 22 Apr Finnair

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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