Due to multiple factors, expect to potentially pay more when booking in March. For low rates, July can be a great choice for travel to Longview. Flights to Longview from Trenton, New Jersey in July are about $587 on average during July, but can be found for as low as $403.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Trenton, New Jersey to Longview as you normally would.