Cheapest return flights from Chicago to London in March from $496

Best time to book flights for Chicago (ORD) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to London (LGW) in March 2025 (see full year).

Return flights

09 Mar - 11 Mar TAP
05 Mar - 17 Mar Spirit Airlines
04 Mar - 11 Mar Spirit Airlines
05 Mar - 12 Mar Spirit Airlines
12 Mar - 14 Mar Spirit Airlines
11 Mar - 25 Mar Spirit Airlines
18 Mar - 01 Apr Spirit Airlines
27 Mar - 01 Apr Spirit Airlines
18 Mar - 24 Mar Air Canada
17 Mar - 24 Mar Aer Lingus
26 Mar - 31 Mar Spirit Airlines
08 Mar - 01 Apr Spirit Airlines
31 Mar - 07 Apr Air Canada
19 Mar - 31 Mar Spirit Airlines
09 Mar - 03 Apr TAP
31 Mar - 30 Apr Icelandair
30 Mar - 12 Apr Icelandair
08 Mar - 02 Apr Spirit Airlines
24 Mar - 01 Apr Spirit Airlines
01 Mar - 01 Apr Spirit Airlines

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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