Cheapest return flights from Chicago to London in December from 371€

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

Return flights

04 Dec - 31 Dec Scandinavian Airlines
03 Dec - 31 Dec Scandinavian Airlines
04 Dec - 10 Dec Scandinavian Airlines
03 Dec - 17 Dec Scandinavian Airlines
15 Dec - 29 Dec Scandinavian Airlines
03 Dec - 24 Dec Scandinavian Airlines
10 Dec - 31 Dec Scandinavian Airlines
10 Dec - 24 Dec Scandinavian Airlines
05 Dec - 15 Dec Scandinavian Airlines
01 Dec - 16 Dec Scandinavian Airlines
28 Dec - 10 Jan Scandinavian Airlines
17 Dec - 07 Jan Scandinavian Airlines
29 Dec - 06 Jan Scandinavian Airlines
23 Dec - 13 Jan Icelandair
24 Dec - 14 Jan Icelandair
24 Dec - 17 Jan Icelandair
23 Dec - 11 Jan Icelandair
24 Dec - 14 Jan British Airways direct
27 Dec - 04 Jan Air Canada
16 Dec - 06 Jan Virgin Atlantic

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

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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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