AirHint found the following cheapest one-way flights from Atlanta (ATL) to London (LHR) in December 2025 (see full year).

One-Way flights

14 Dec	WestJet
10 Dec	United
29 Dec	United
10 Dec	Air France	direct
17 Dec	jetBlue
14 Dec	Virgin Atlantic	direct
29 Dec	Air France	direct
28 Dec	Frontier Airlines
18 Dec	Frontier Airlines
23 Dec	Frontier Airlines

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

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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Cheapest one-way flights from Atlanta to London in December from 267€

One-Way flights