Cheapest return flights from Chicago to London in December from 414€

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

Return flights

01 Dec - 05 Dec Icelandair
05 Dec - 07 Dec United
02 Dec - 10 Dec Air France
03 Dec - 10 Dec Icelandair
02 Dec - 10 Dec British Airways direct
03 Dec - 10 Dec British Airways direct
08 Dec - 15 Dec British Airways direct
13 Dec - 09 Jan Icelandair
08 Dec - 12 Dec Scandinavian Airlines
13 Dec - 26 Dec Scandinavian Airlines
13 Dec - 27 Dec Scandinavian Airlines
20 Dec - 17 Jan Scandinavian Airlines
14 Dec - 06 Jan Scandinavian Airlines
13 Dec - 09 Jan Iberia direct
24 Dec - 07 Jan United
17 Dec - 09 Jan Scandinavian Airlines
12 Dec - 05 Jan Scandinavian Airlines
24 Dec - 07 Jan British Airways direct
17 Dec - 05 Jan Scandinavian Airlines
18 Dec - 11 Jan jetBlue

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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