It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
September can be a great time to fly to Harlingen, Texas from Philadelphia with a flight ticket averaging about $584. Cheapflights users have found deals in the month of September for as cheap as $341. The most expensive prices can be found in the month of June.
When flying from Philadelphia to Harlingen, Texas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 24% versus a flight in the afternoon.