AirHint found the following cheapest one-way flights from San Antonio (SAT) to London (LGW) in December 2025 (see full year).
One-Way flights
| 07 Dec | Spirit Airlines | ||
| 15 Dec | Spirit Airlines | ||
| 10 Dec | Spirit Airlines | ||
| 30 Dec | Frontier Airlines | ||
| 28 Dec | Spirit Airlines | ||
| 20 Dec | Frontier Airlines | ||
| 21 Dec | Spirit Airlines | ||
| 23 Dec | Frontier Airlines |
Also check the deals for return flights from San Antonio 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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