Cheapest return flights from Chicago to London in March from $567

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 2026 (see full year).

Return flights

14 Mar - 22 Mar Scandinavian Airlines
18 Mar - 22 Mar Scandinavian Airlines
03 Mar - 10 Mar Delta
11 Mar - 18 Mar Delta
10 Mar - 17 Mar Delta
04 Mar - 11 Mar Delta
18 Mar - 25 Mar Delta
17 Mar - 24 Mar Delta
02 Mar - 09 Mar Delta
09 Mar - 16 Mar Delta
26 Mar - 02 Apr Icelandair
25 Mar - 01 Apr Delta
31 Mar - 07 Apr Delta
26 Mar - 02 Apr British Airways direct
29 Mar - 05 Apr Delta
30 Mar - 06 Apr Delta
27 Mar - 03 Apr Delta
30 Mar - 02 Apr Delta
29 Mar - 01 Apr Delta
31 Mar - 03 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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