Cheapest one-way flights from Chicago to London in December from $203

AirHint found the following cheapest one-way flights from Chicago (ORD) to London (LGW) in December 2025 (see full year).

One-Way flights

09 Dec Spirit Airlines
08 Dec Spirit Airlines
06 Dec Spirit Airlines
12 Dec Spirit Airlines
13 Dec Spirit Airlines
15 Dec Spirit Airlines
01 Dec Sun Country Airlines
30 Dec Sun Country Airlines
29 Dec Frontier Airlines
24 Dec Frontier Airlines

Also check the deals for return flights from Chicago to London in December.

Skyscanner

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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