Cheapest return ORD–LHR flights, December

AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in December 2026 (see full year).

Return flights

09 Dec - 12 Jan Icelandair
01 Dec - 07 Dec Scandinavian Airlines
11 Dec - 08 Jan TAP
01 Dec - 03 Dec Icelandair
09 Dec - 12 Jan British Airways direct
16 Dec - 27 Dec Scandinavian Airlines
27 Dec - 08 Jan Air Canada
01 Dec - 07 Dec Finnair direct
11 Dec - 08 Jan British Airways direct
25 Dec - 08 Jan Air Canada
21 Dec - 06 Jan Scandinavian Airlines
18 Dec - 08 Jan Scandinavian Airlines
18 Dec - 09 Jan Scandinavian Airlines
01 Dec - 03 Dec Lufthansa direct
18 Dec - 28 Dec Scandinavian Airlines
19 Dec - 06 Jan Scandinavian Airlines
16 Dec - 27 Dec United direct
18 Dec - 28 Dec British Airways direct

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

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