Travelers have found it’s best to book a flight 22 days in advance to save up to 8% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 22 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Southampton to San Antonio 1-2 weeks in advance for as low as £734, or £778 for flights within the next 24 hours.
Flights from Southampton to San Antonio lean towards being more expensive in July. Prices are generally better when you fly from Southampton to San Antonio in January, with the cheapest ticket starting at £534.
When flying from Southampton to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.