Cheapest return flights from Chicago to London in December from 412€

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

Return flights

03 Dec - 09 Dec Icelandair
01 Dec - 05 Dec Icelandair
12 Dec - 14 Dec Icelandair
17 Dec - 05 Jan Frontier Airlines
13 Dec - 26 Dec Icelandair
15 Dec - 22 Dec Icelandair
13 Dec - 27 Dec Icelandair
24 Dec - 07 Jan Spirit Airlines
17 Dec - 23 Dec TAP
14 Dec - 21 Dec Icelandair
23 Dec - 30 Dec Icelandair
25 Dec - 07 Jan Icelandair
24 Dec - 30 Dec TAP
20 Dec - 17 Jan Icelandair
24 Dec - 06 Jan TAP
26 Dec - 04 Jan Sun Country Airlines
17 Dec - 02 Jan Spirit Airlines
19 Dec - 05 Jan Scandinavian Airlines
27 Dec - 02 Jan Icelandair
30 Dec - 02 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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