Cheapest return flights from San Antonio to London in December from $743

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

Return flights

02 Dec - 09 Dec United
08 Dec - 08 Jan Air Canada
07 Dec - 14 Dec United
12 Dec - 19 Dec United
12 Dec - 30 Dec United
17 Dec - 24 Dec United
15 Dec - 03 Jan Spirit Airlines
22 Dec - 29 Dec United
26 Dec - 02 Jan Virgin Atlantic
27 Dec - 03 Jan Delta

Also check the deals for one-way flights from San Antonio 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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