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 - 16 Dec Icelandair
09 Dec - 15 Dec Icelandair
08 Dec - 15 Dec Icelandair
04 Dec - 06 Dec Icelandair
02 Dec - 09 Dec Icelandair
01 Dec - 05 Dec Icelandair
27 Dec - 09 Jan Scandinavian Airlines
02 Dec - 09 Dec British Airways direct
08 Dec - 15 Dec British Airways direct
09 Dec - 15 Dec Finnair direct
09 Dec - 16 Dec Finnair direct
17 Dec - 01 Jan Scandinavian Airlines
23 Dec - 01 Jan Scandinavian Airlines
25 Dec - 08 Jan KLM
23 Dec - 01 Jan British Airways direct
17 Dec - 01 Jan British Airways direct

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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