Cheapest return flights from Chicago to London in March from 441€

AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar Icelandair
03 Mar - 10 Mar British Airways direct
01 Mar - 07 Mar Icelandair
05 Mar - 15 Mar Scandinavian Airlines
29 Mar - 04 Apr Icelandair
23 Mar - 03 Apr Icelandair
20 Mar - 29 Mar Icelandair
05 Mar - 15 Mar British Airways direct
27 Mar - 04 Apr Icelandair
27 Mar - 03 Apr Icelandair
23 Mar - 30 Mar United
23 Mar - 03 Apr British Airways direct
27 Mar - 03 Apr British Airways direct
23 Mar - 30 Mar British Airways direct
27 Mar - 06 Apr Icelandair
13 Mar - 20 Mar British Airways direct
27 Mar - 04 Apr British Airways direct
27 Mar - 06 Apr United direct
01 Mar - 07 Mar British Airways direct

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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