To save on the cost of your flight from Knoxville to Greven, book at least 16 days before your planned departure. Booking around this time can save you about 12% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $750 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $891.
September can be a great time to fly to Greven from Knoxville with a flight ticket averaging about $760. Cheapflights users have found deals in the month of September for as cheap as $410. The most expensive prices can be found in the month of August.