Cheap Flights from Philadelphia (PHL) to Houston (HOU)

Frequently Asked Questions

• What are the cheapest flights from Philadelphia to Houston (PHL-HOU)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$80 on Cheapest nonstop routes (e.g. PHL to IAH on Sat, May 23), while Frontier Airlines offers Cheapest nonstop round-trips from US$136 departing on Wed, May 13 and returning on Fri, May 15.

• Which airlines offer direct flights from Philadelphia to Houston?

  At the moment, you can catch a nonstop flight from Philadelphia to Houston with the following airlines, including: United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Philadelphia to Houston?

  It takes about 3 hours 43 minutes to fly from Philadelphia to Houston.

• When is the best time to book flights from Philadelphia to Houston?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Philadelphia to Houston is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Philadelphia to Houston?

  Based on Trip.com data in the past 4 weeks, there is 35 flight per week flying from Philadelphia to Houston. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA1172 (08:19)

• How can I find the best deals on flights from Philadelphia to Houston?

  To find best deals on flights from Philadelphia to Houston, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, May 23, with one-way flights priced at just US$80.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Houston travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Philadelphia (PHL) to Houston (HOU) the cheapest?

  The cheapest months to fly from Philadelphia to Houston is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Philadelphia to Houston on?

  After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Philadelphia to Houston on May 11, 2026 with Frontier Airlines, with prices starting at US$76.

• Which airports can I fly to for Houston from Philadelphia?

  You can land at any one of the following hubs in Houston, with Philadelphia International Airport to George Bush Intercontinental Airport (PHL-IAH) is by far the most common option on this route: William P. Hobby Airport (HOU) George Bush Intercontinental Airport (IAH).

• Is there any time difference between Philadelphia and Houston?

  The time difference between Houston and Philadelphia is 1h.

• How do I change or cancel my ticket from Philadelphia to Houston?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.