To save on the cost of your flight from Great Falls to Myrtle Beach, book at least 16 days before your planned departure. Booking around this time can save you about 21% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $234 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $306.
August can be a great time to fly to Myrtle Beach from Great Falls with a flight ticket averaging about $324. Cheapflights users have found deals in the month of August for as cheap as $124. The most expensive prices can be found in the month of December.