It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
March can be a great time to fly to Harlingen from Charlotte with a flight ticket averaging about $286. Cheapflights users have found deals in the month of March for as cheap as $128. The most expensive prices can be found in the month of June.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Charlotte to Harlingen as you normally would.