Cheapest return flights from Chicago to London in March from 354€

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

Return flights

04 Mar - 10 Mar Scandinavian Airlines
12 Mar - 19 Mar Scandinavian Airlines
04 Mar - 13 Mar Scandinavian Airlines
09 Mar - 16 Mar Icelandair
03 Mar - 10 Mar Delta
11 Mar - 18 Mar Delta
10 Mar - 17 Mar Delta
04 Mar - 13 Mar British Airways direct
17 Mar - 24 Mar Delta
04 Mar - 11 Mar Delta
31 Mar - 07 Apr Delta
30 Mar - 06 Apr Finnair
30 Mar - 06 Apr Iberia direct
26 Mar - 02 Apr Delta
27 Mar - 03 Apr Delta
29 Mar - 05 Apr Delta
28 Mar - 04 Apr Delta
29 Mar - 01 Apr Delta
31 Mar - 03 Apr Delta
30 Mar - 02 Apr Delta

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

Skyscanner

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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