Cheapest return flights from Houston to London in December from $674

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

Return flights

31 Dec - 07 Jan United
10 Dec - 07 Jan United direct
31 Dec - 07 Jan British Airways direct
01 Dec - 08 Dec United
12 Dec - 19 Dec United direct
11 Dec - 18 Dec British Airways direct
01 Dec - 08 Dec British Airways direct
25 Dec - 11 Jan British Airways direct
29 Dec - 04 Jan Air Canada
29 Dec - 04 Jan Lufthansa direct
26 Dec - 02 Jan Austrian Airlines
21 Dec - 28 Dec British Airways direct
16 Dec - 04 Jan United direct
19 Dec - 30 Dec KLM
26 Dec - 02 Jan Austrian Airlines direct
15 Dec - 21 Jan Austrian Airlines
19 Dec - 30 Dec British Airways direct

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

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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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