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Cheap Flights from Philadelphia International to Houston

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      Travellers and cabin class, 1 Adult, Economy

      Compare Philadelphia International to Houston flight deals

      Find the cheapest month or even day of the year to fly to Houston

      Book the best Houston fare with no extra fees

      Flight deals from Philadelphia International to Houston

      Looking for a cheap last-minute deal or the best return flight from Philadelphia International Airport to Houston? If you want to travel next month, return fares start from R 1,894. Find the lowest prices on one-way and return tickets right here.
      Houston.R 956 per passenger.Departing Mon, 21 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 21 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 956, select.
      Houston.R 963 per passenger.Departing Tue, 27 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 27 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 963, select.
      Houston.R 963 per passenger.Departing Fri, 14 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Fri, 14 Aug, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 963, select.
      Houston.R 1,548 per passenger.Departing Wed, 16 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Wed, 16 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 1,548, select.
      Houston.R 1,548 per passenger.Departing Wed, 7 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Wed, 7 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 1,548, select.
      Houston.R 1,551 per passenger.Departing Fri, 31 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Fri, 31 Jul, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 1,551, select.
      Houston.R 1,771 per passenger.Departing Thu, 5 Nov.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Thu, 5 Nov, arriving in Houston Hobby.Price includes taxes and charges.From R 1,771, select.
      Houston.R 1,793 per passenger.Departing Mon, 2 Nov.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Mon, 2 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 1,793, select.
      Houston.R 2,609 per passenger.Departing Tue, 15 Dec.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Tue, 15 Dec, arriving in Houston Hobby.Price includes taxes and charges.From R 2,609, select.
      Houston.R 2,684 per passenger.Departing Tue, 2 Feb.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Tue, 2 Feb, arriving in Houston Hobby.Price includes taxes and charges.From R 2,684, select.
      Houston.R 3,168 per passenger.Departing Wed, 6 Jan.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Wed, 6 Jan, arriving in Houston Hobby.Price includes taxes and charges.From R 3,168, select.
      Houston.R 3,171 per passenger.Departing Wed, 9 Dec.One-way flight with United.Outbound direct flight with United departs from Philadelphia International on Wed, 9 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 3,171, select.
      Houston.R 4,308 per passenger.Departing Tue, 4 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Tue, 4 May, arriving in Houston Hobby.Price includes taxes and charges.From R 4,308, select.
      Houston.R 4,314 per passenger.Departing Thu, 18 Mar.One-way flight with United.Outbound indirect flight with United, departs from Philadelphia International on Thu, 18 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 4,314, select.
      Houston.R 4,319 per passenger.Departing Mon, 26 Apr.One-way flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Mon, 26 Apr, arriving in Houston Hobby.Price includes taxes and charges.From R 4,319, select.
      Houston.R 4,618 per passenger.Departing Wed, 12 Aug.One-way flight with United.Outbound direct flight with United departs from Philadelphia International on Wed, 12 Aug, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From R 4,618, select.

      Find the cheapest month to fly from Philadelphia International to Houston

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Houston flights are currently cheapest in September.
      Jul
      from R 1,551
      Aug
      from R 963
      Sep
      from R 956
      Oct
      from R 963
      Nov
      from R 1,771
      Dec
      from R 2,609
      Jan
      from R 3,168
      Feb
      from R 2,684
      Mar
      from R 4,314
      Apr
      from R 4,319
      May
      from R 4,308
      Jun
      Find prices

      Direct flights from Philadelphia International to Houston

      Alternative Philadelphia International to Houston routes

      Looking for the cheapest, fastest or easiest route from Philadelphia International to Houston? You could fly into the following airports instead.

      Houston Hobby

      15km from central Houston
      Closest
      from R 1,625
      Search flights

      Houston George Bush Intercntl.

      25km from central Houston
      Cheapest
      from R 956
      Search flights

      Houston Ellington Field

      28km from central Houston
      Search flights

      Philadelphia to Houston: Flight information

      The things to know before you go.
      Cheapest flight foundR 956
      Cheapest month to flySeptember
      Average flight time3 hrs, 50 mins
      Most popular airlineAmerican Airlines
      Average flights per week104

      Finding cheap flights from Philadelphia International to Houston: Frequently asked questions

      There are 3 airports in Houston: Houston Hobby, Houston George Bush Intercntl. and Houston Ellington Field.
      The best price we found for a return flight from Philadelphia International to Houston is R 1,894. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      3 hours and 50 minutes is the average flight time from Philadelphia International to Houston.
      American Airlines, Qatar Airways and United fly direct from Philadelphia International to Houston.
      As of July 2026, there are 104 flights per week flying from Philadelphia International to Houston.
      The cheapest month to fly from Philadelphia International to Houston is usually August.
      If you're flying from Philadelphia International Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 24.9 km away from the centre of Houston. We've found flights into this airport from R 1,894.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Houston on Tuesday, 11 August 2026.
      Yes – the average flight time is 3 hours and 50 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.

      In July, the average temperature is usually around 29°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
      Currently, Frontier Airlines offers the cheapest flight tickets to Houston.

      Travelling from Philadelphia International Airport (PHL) to Houston: what you need to know

      • Hop on a direct flight from Philadelphia International Airport to Houston and you'll be in the air for an average of 3 hours 20 minutes.

      • The timezone in Houston is UTC-6. The city is one hour behind Philadelphia, where Philadelphia International Airport is located.

      • There are 38 weekly services between Philadelphia International Airport (PHL) and Houston George Bush Intercontinental Airport (IAH). This is the most popular flight route.

      • For a relaxed start to your PHL to Houston flight, leave plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

      • Flying during a popular month like July? Major public holidays and other popular seasons can mean longer lines and delays at security. Play things extra safe and arrive up to four hours before international flights and two hours before a domestic departure.

      • Direct Philadelphia International Airport to Houston tickets are available for booking. Houston George Bush Intercontinental Airport (IAH) is where you'll be touching down.

      • You'll have your pick of carriers offering direct flights from Philadelphia International Airport to Houston. Book your seat with one of these:

      • PHL is about 11 kilometres from central Philadelphia. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're taking public transport, expect the journey time to be around 30 minutes.

      • Planning to catch an early flight from Philadelphia International Airport to Houston? Avoid the last-minute rush to the airport (and sneak in some extra precious sleep) by choosing one of these stays close to PHL:

      • 77% of flights departing from Philadelphia International Airport touch down at their destination on schedule.

      • PHL is located at 8500 Essington Ave.

      How to find the cheapest flights from Philadelphia International Airport (PHL) to Houston

      • R 956 is the lowest price we've found for a one-way Philadelphia International Airport to Houston flight. A return ticket right now is R 1,894. Depending on when you book and the availability, these fares may change.

      • Score cheap flights from PHL to Houston by booking one month ahead. Based on our research, that's the sweet spot for finding a bargain.

      • The best month for landing cheap Philadelphia International Airport to Houston tickets is June. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the lowest fares.

      • Never miss a deal on cheap flights from PHL to Houston by creating a Price Alert. You'll receive an email or push notification on the app when a lower fare pops up.

      • Save on your flight from Philadelphia International Airport to Houston with the help of our filters. Choose your preferred times, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

      Airports in Houston

      Houston George Bush Intercontinental Airport (IAH)

      Houston Hobby Airport (HOU)

      • Central Houston is located around 19 kilometres from Houston Hobby Airport (HOU). Once your flight from Philadelphia International Airport to Houston has landed and you've made your way through the terminal, expect a drive of around 20 minutes.

      • You can expect the journey to take roughly 50 minutes on public transport.

      • Hang up the 'Do not disturb' sign and relax at a hotel near HOU. Here are a few options where you can settle in after your PHL to Houston flight:

      • Avoid paying more than you need to. Securing your ride four weeks before your arrival at HOU will save you money.

      • Houston Hobby Airport is located at 7800 Airport Boulevard.

      Best time to go to Houston

      • January is the quietest month for flights from Philadelphia International Airport to Houston, while July is the most popular. Work out the ideal time to go to Houston based on whether you like a lively atmosphere or a more laid-back vibe.

      • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Book your Philadelphia International Airport to Houston plane ticket then if that's your ideal forecast.

      • Look for cheap tickets from PHL to Houston in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

      More about Houston

      Explore more of the United States

      • San Antonio is just one of the many cities in the United States waiting to be discovered after you've experienced Houston. Around 306 kilometres away to the west, top sights here include San Antonio River Walk, San Antonio River walk and Alamo Plaza.

      • Dallas is another must-experience destination in the United States and is around 370 kilometres north of Houston. No journey is complete without visiting Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

      Plan the rest of your trip from Philadelphia to Houston

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.