AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to London (LHR) in December 2025 (see full year).

Return flights

08 Dec - 13 Jan	Finnair
03 Dec - 10 Dec	Air Canada
10 Dec - 15 Dec	Air Canada
03 Dec - 10 Dec	British Airways	direct
08 Dec - 19 Dec	Iberia	direct
08 Dec - 13 Jan	Iberia	direct
08 Dec - 15 Dec	United
08 Dec - 15 Dec	British Airways	direct
10 Dec - 15 Dec	British Airways	direct
13 Dec - 09 Jan	Scandinavian Airlines
13 Dec - 10 Jan	jetBlue
22 Dec - 12 Jan	Air Canada
13 Dec - 09 Jan	Iberia	direct
13 Dec - 20 Dec	United
23 Dec - 30 Dec	United
22 Dec - 30 Dec	Air Canada
22 Dec - 12 Jan	British Airways	direct
28 Dec - 04 Jan	Air Canada
25 Dec - 01 Jan	British Airways
24 Dec - 05 Jan	British Airways

Also check the deals for one-way flights from Dallas-Fort Worth 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 return flights from Dallas-Fort Worth to London in December from 506€

Return flights