Cheapest return flights from Chicago to London in December from 453€

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

Return flights

10 Dec - 16 Dec Virgin Atlantic
10 Dec - 25 Dec Austrian Airlines
02 Dec - 09 Dec Icelandair
01 Dec - 08 Dec Icelandair
10 Dec - 16 Dec Lufthansa direct
07 Dec - 16 Dec Aer Lingus
03 Dec - 09 Dec Aer Lingus
31 Dec - 13 Jan Aer Lingus
10 Dec - 14 Dec Virgin Atlantic
07 Dec - 15 Dec Austrian Airlines
30 Dec - 09 Jan Austrian Airlines
31 Dec - 13 Jan British Airways direct
10 Dec - 26 Dec Austrian Airlines
12 Dec - 15 Jan Air Canada
15 Dec - 15 Jan Aer Lingus
15 Dec - 20 Jan Aer Lingus
08 Dec - 08 Jan Virgin Atlantic
09 Dec - 08 Jan Virgin Atlantic
29 Dec - 12 Jan Air France
30 Dec - 11 Jan Aer Lingus

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

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