Cheapest return flights from Chicago to London in March from 519€

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

30 Mar - 13 Apr Scandinavian Airlines
31 Mar - 14 Apr Scandinavian Airlines
17 Mar - 27 Mar Scandinavian Airlines
27 Mar - 03 Apr jetBlue
26 Mar - 02 Apr Iberia direct
30 Mar - 08 Apr Iberia direct
17 Mar - 24 Mar Scandinavian Airlines
26 Mar - 01 Apr Air Canada
28 Mar - 31 Mar jetBlue
12 Mar - 19 Mar Air Canada
12 Mar - 26 Mar Air Canada
18 Mar - 01 Apr SWISS
31 Mar - 07 Apr SWISS
12 Mar - 18 Mar jetBlue
24 Mar - 02 Apr Delta
24 Mar - 03 Apr Delta
16 Mar - 24 Mar Air Canada
25 Mar - 31 Mar jetBlue
12 Mar - 19 Mar British Airways direct
12 Mar - 26 Mar British Airways direct

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.

Book a cheap hotel in London

Cheap car rent in London