Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Newark Airport to Greenville, Mississippi as you normally would.
Most people fly into Greenville Mid-Delta (GLH) if they book a flight to Greenville from Newark. On average, Mid-Delta has 0 inbound flights from Newark per day from 0 airlines. Greenville Mid-Delta is conveniently located just 6.7 mi from Greenville’s city center.
This is defined as Newark Airport (EWR) and Greenville Mid-Delta Airport (GLH). Codes like Greenville Mid-Delta Airport are often used to just call airports uniquely.