To save up to 37% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Mississippi to Delaware from $393 1-2 weeks out and tickets from $478 for flights departing within the next 72 hours.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Mississippi to Delaware as you normally would.