To save on the cost of your flight from South Dakota to Delaware, book at least 23 days before your planned departure. Booking around this time can save you about 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $179 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $231.
July can be a great time to fly to Delaware from South Dakota with a flight ticket averaging about $184. Cheapflights users have found deals in the month of July for as cheap as $52. The most expensive prices can be found in the month of December.