Cheapest return flights from Chicago to London in March from 523€

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

11 Mar - 25 Mar Icelandair
25 Mar - 12 Apr Icelandair
26 Mar - 07 Apr Icelandair
03 Mar - 17 Mar Scandinavian Airlines
16 Mar - 27 Mar Scandinavian Airlines
10 Mar - 17 Mar Scandinavian Airlines
17 Mar - 25 Mar Icelandair
12 Mar - 24 Mar Icelandair
02 Mar - 09 Mar Scandinavian Airlines
02 Mar - 07 Mar TAP
28 Mar - 01 Apr jetBlue
05 Mar - 10 Mar jetBlue
12 Mar - 26 Mar jetBlue
26 Mar - 14 Apr jetBlue
27 Mar - 10 Apr Icelandair
26 Mar - 08 Apr Icelandair
18 Mar - 01 Apr jetBlue
23 Mar - 02 Apr Air Canada
26 Mar - 02 Apr Finnair
24 Mar - 02 Apr Aer Lingus

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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