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$81+ Cheap flights from Philadelphia (PHL) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HOU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Houston are usually found in September or August, booked 82 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Philadelphia to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$187
(Frontier)

One-way from

$81
(Cheapflightsfares)

Popular in

April

Cheapest in

September

Average price

$213
From Philadelphia to Houston
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One-way flight from Philadelphia to Houston
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Highest demand for flights based on searches. 16% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Philadelphia to Houston

Cheapest flights from Philadelphia to Houston
Explore the most affordable flight options available from Philadelphia to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:00 amPHL - IAH
1 stop8h 36mFrontier
Mon 10/64:04 pmIAH - PHL
1 stop7h 32mFrontier
Deal found 9/10$187
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:50 pmPHL - IAH
1 stop13h 34mSpirit Airlines
Mon 9/157:31 pmIAH - PHL
1 stop13h 15mSpirit Airlines
Deal found 9/10$188
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:44 pmPHL - IAH
1 stop15h 55mFrontier
Fri 9/264:04 pmIAH - PHL
1 stop7h 25mFrontier
Deal found 9/10$189
This Orbitz deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:50 pmPHL - IAH
1 stop13h 34mSpirit Airlines
Sun 9/147:31 pmIAH - PHL
1 stop13h 15mSpirit Airlines
Deal found 9/10$190
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:00 amPHL - HOU
2 stops7h 30mSouthwest
Wed 11/126:00 amHOU - PHL
2 stops8h 05mSouthwest
Deal found 9/11$191
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:50 pmPHL - IAH
1 stop13h 34mSpirit Airlines
Mon 9/227:31 pmIAH - PHL
1 stop13h 15mSpirit Airlines
Deal found 9/9$192
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/412:35 pmPHL - HOU
1 stop7h 40mSouthwest
Mon 10/65:15 amHOU - PHL
1 stop5h 40mSouthwest
Deal found 9/9$192
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/183:27 pmPHL - IAH
2 stops8h 58mMultiple Airlines
Fri 10/245:42 pmIAH - PHL
1 stop6h 17mMultiple Airlines
Deal found 9/10$193
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:41 amPHL - IAH
1 stop8h 31mSpirit Airlines
Wed 9/175:30 amIAH - PHL
1 stop6h 32mSpirit Airlines
Deal found 9/9$194
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:40 amPHL - HOU
2 stops13h 10mSouthwest
Sat 11/85:45 amHOU - PHL
1 stop4h 45mSouthwest
Deal found 9/10$194
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:10 amPHL - IAH
1 stop8h 12mMultiple Airlines
Thu 10/2310:12 pmIAH - PHL
2 stops26h 29mMultiple Airlines
Deal found 9/10$195
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:11 pmPHL - IAH
1 stop12h 21mSpirit Airlines
Mon 12/811:54 amIAH - PHL
1 stop11h 38mSpirit Airlines
Deal found 9/10$196

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Philadelphia to Houston that are best for you.

Fly from

Philadelphia

Fly to

Houston

Route

Depart

Return

Price

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Tue 10/28

5:55 am-11:45 am

2 stops6h 50m

Houston Hobby

Fri 10/31

10:50 am-7:35 pm

2 stops7h 45m

$202

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sat 10/4

6:00 am-12:30 pm

2 stops7h 30m

Houston Hobby

Mon 10/6

10:25 pm-9:40 am

1 stop10h 15m

$203

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sat 10/4

2:00 pm-6:10 pm

1 stop5h 10m

Houston Hobby

Tue 10/7

1:30 pm-10:10 pm

1 stop7h 40m

$214

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Wed 10/29

5:55 am-11:45 am

2 stops6h 50m

Houston Hobby

Sun 11/2

5:10 am-2:40 pm

2 stops8h 30m

$217

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Fri 10/3

5:25 pm-11:25 pm

1 stop7h 00m

Houston Hobby

Wed 10/8

5:25 am-2:05 pm

2 stops7h 40m

$218

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sat 11/1

5:10 pm-10:20 pm

1 stop6h 10m

Houston Hobby

Sun 11/2

5:10 am-2:40 pm

2 stops8h 30m

$221

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Tue 10/21

4:05 pm-9:05 pm

1 stop6h 00m

Houston Hobby

Fri 10/24

2:35 pm-12:20 am

1 stop8h 45m

$227

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sun 10/12

8:35 pm-1:30 am

1 stop5h 55m

Houston Hobby

Tue 10/14

5:25 am-2:05 pm

2 stops7h 40m

$229

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Fri 10/3

5:00 pm-12:05 am

1 stop8h 05m

Houston Hobby

Mon 10/6

10:25 pm-9:40 am

1 stop10h 15m

$236

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Fri 11/7

1:40 pm-9:20 pm

1 stop8h 40m

Houston Hobby

Sun 11/9

7:45 am-3:55 pm

1 stop7h 10m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 45 results
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The best insider tips for Philadelphia to Houston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Houston trip
Airlines
United Airlines

United's Economy Plus offers extra legroom, enhancing comfort on domestic flights.


United's MileagePlus allows pooling miles, beneficial for family travel.

Read more about United Airlinesby Harriet Baskas
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for added comfort.


Spirit's self-service bag drop saves time at the airport, enhancing efficiency.

Read more about Spirit Airlinesby Daniel Scheffler
Airports
PHL

For quick access to Center City, use SEPTA regional rail from PHL. Stations are near Terminals A, B, C/D, and E/F.

Read more about PHLby Mark Chesnut
IAH

For a quick ride to downtown Houston, take an Uber or Lyft from IAH. It's about a 25-minute drive.

Read more about IAHby Evie Carrick
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

Best time to book a flight from Philadelphia to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Houston

How far ahead should I book a flight from Philadelphia to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Houston. Price data was last updated on August 29, 2025.

The best time to book flights from Philadelphia to Houston is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to Houston?

Currently, September is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $230). Flying from Philadelphia to Houston in March is currently the most expensive (average of $331). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to HOU?

Find hourly flight availability from Philadelphia to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Philadelphia to Houston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 39% on airfare.

What is the cheapest day to fly from Philadelphia to Houston?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Houston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to Houston flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Philadelphia to Houston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Houston?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Houston. 6 airlines have flights from Philadelphia to Houston on a regular basis. Booking flights from Philadelphia to Houston should not be difficult; the airport handles an average of 0 outbound flights to Houston per day.

  • How long is the flight from Philadelphia to Houston?

    A quick flight from Philadelphia to Houston can take about 6h 28m. Southwest provides one of the quickest options available for as low as $240. The distance from Philadelphia to Houston is about 1322 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Philadelphia to Houston round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Houston, with prices starting at $69. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $110 and $171, respectively. These flights start at 77% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Houston one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $82. Users have also found prices from $84 and $85 on Frontier and Southwest, respectively.

  • Can I find deals for flights from Philadelphia to Houston that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Houston.

  • Can I find deals for business class flights from Philadelphia to Houston?

    Yes. Cheapflights offers flight deals from Philadelphia to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Houston?

    Currently, September is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $230). Flying from Philadelphia to Houston in March is currently the most expensive (average of $331). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Philadelphia to Houston

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
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Pittsburgh to Dallas/Fort Worth flights
Pittsburgh to George Bush Intcntl flights
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Newark to El Paso flights
John F Kennedy Intl to El Paso flights
LaGuardia to El Paso flights
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Harrisburg to Austin flights
Dulles Intl to El Paso flights
Reagan-National to El Paso flights

Top 6 airlines flying from Philadelphia to Houston

Discover the top 6 airlines that operate flights from Philadelphia to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$69Average$194FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$187FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$171Average$316FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$214Average$404FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$308FlexibilityNo cancel feeOn-timeN/A

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