Tuesday is generally a great day to depart. Flying on this day could help you save up to 106%.
One of the essential ways to save on airfare from Sioux Falls to Harlingen, Texas is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 44% on airfare.
August can be a great time to fly to Harlingen, Texas from Sioux Falls with a flight ticket averaging about $428. Cheapflights users have found deals in the month of August for as cheap as $181. The most expensive prices can be found in the month of December.