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

One-Way flights

10 Dec	Frontier Airlines
11 Dec	Frontier Airlines
13 Dec	Frontier Airlines
14 Dec	Frontier Airlines
17 Dec	Frontier Airlines
06 Dec	jetBlue
02 Dec	Turkish Airlines
03 Dec	British Airways
22 Dec	WestJet
27 Dec	Turkish Airlines

Also check the deals for return flights from Houston 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 Houston to London in December from $294

One-Way flights