Cheapest return flights from Chicago to London in December from $563

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 December 2025 (see full year).

Return flights

07 Dec - 14 Dec Icelandair
01 Dec - 08 Dec Icelandair
11 Dec - 19 Dec Icelandair
04 Dec - 11 Dec Icelandair
29 Dec - 11 Jan Icelandair
12 Dec - 20 Dec Icelandair
13 Dec - 20 Dec Icelandair
26 Dec - 13 Jan Icelandair
23 Dec - 30 Dec Icelandair
13 Dec - 27 Dec Icelandair
24 Dec - 08 Jan TAP
12 Dec - 03 Jan TAP
18 Dec - 02 Jan Icelandair
13 Dec - 03 Jan Icelandair
22 Dec - 30 Dec Icelandair
18 Dec - 03 Jan Icelandair
25 Dec - 01 Jan Icelandair
19 Dec - 26 Dec Icelandair
26 Dec - 03 Jan Icelandair
20 Dec - 04 Jan Icelandair

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

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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