Travelers have found it’s best to book a flight 45 days in advance to save up to 13% 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 45 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 Sioux Falls to Phuket 1-2 weeks in advance for as low as $963, or $1021 for flights within the next 24 hours.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Phuket. Flights to Phuket from Sioux Falls in September are about $944 on average during September, but can be found for as low as $461.