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Cheap flights from Philadelphia to Houston from $77

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Houston departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Logo
2:07 pm - 10:30 pmPHL-IAH
9h 23m1 stop
Logo
4:04 pm - 12:36 amIAH-PHL
7h 32m1 stop
$148
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Mon, Sep 8 - Thu, Sep 18
Frontier Logo
8:00 am - 10:47 amPHL-IAH
27h 47m1 stop
Frontier Logo
2:12 pm - 3:13 pmIAH-PHL
24h 01m1 stop
$149Frontier
Find Deal
Wed, Oct 8 - Thu, Oct 9
Frontier Logo
8:30 am - 3:04 pmPHL-IAH
7h 34m1 stop
Frontier Logo
5:47 pm - 12:57 amIAH-PHL
6h 10m1 stop
$151Frontier
Find Deal
Thu, Sep 11 - Mon, Sep 15
Frontier Logo
8:30 am - 3:04 pmPHL-IAH
7h 34m1 stop
Frontier Logo
5:47 pm - 12:57 amIAH-PHL
6h 10m1 stop
$153Frontier
Find Deal
Thu, Sep 11 - Fri, Sep 19
Frontier Logo
12:01 pm - 8:15 pmPHL-IAH
9h 14m1 stop
Frontier Logo
5:47 pm - 12:57 amIAH-PHL
6h 10m1 stop
$155Frontier
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Fri, Sep 12 - Fri, Sep 19
Spirit Airlines Logo
2:07 pm - 10:30 pmPHL-IAH
9h 23m1 stop
Spirit Airlines Logo
5:30 am - 1:02 pmIAH-PHL
6h 32m1 stop
$156Spirit Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 16
Spirit Airlines Logo
2:07 pm - 10:30 pmPHL-IAH
9h 23m1 stop
Spirit Airlines Logo
5:30 am - 1:02 pmIAH-PHL
6h 32m1 stop
$158Spirit Airlines
Find Deal
Fri, Sep 12 - Wed, Sep 17
Spirit Airlines Logo
5:15 am - 10:59 amPHL-IAH
6h 44m1 stop
Spirit Airlines Logo
4:42 pm - 12:32 amIAH-PHL
6h 50m1 stop
$163Spirit Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Spirit Airlines Logo
4:03 pm - 4:50 pmPHL-IAH
25h 47m2 stops
Spirit Airlines Logo
7:31 pm - 9:46 amIAH-PHL
13h 15m1 stop
$164Spirit Airlines
Find Deal
Mon, Sep 8 - Wed, Sep 10
Logo
6:15 am - 8:15 pmPHL-IAH
15h 00m1 stop
Logo
7:31 pm - 9:46 amIAH-PHL
13h 15m1 stop
$169
Find Deal
Fri, Sep 19 - Tue, Sep 23

Frontier flights from Philadelphia to Houston George Bush Intcntl Airport

Our best Frontier deals on Philadelphia to Houston George Bush Intcntl Airport flight tickets
Frontier
Oct 8
PHL8:00 amPhiladelphia
27h 47m
1 stop
IAH10:47 amHouston George Bush Intcntl
Oct 9
IAH2:12 pmHouston George Bush Intcntl
24h 01m
1 stop
PHL3:13 pmPhiladelphia
$149
Find similar
Frontier
Sep 11
PHL8:30 amPhiladelphia
7h 34m
1 stop
IAH3:04 pmHouston George Bush Intcntl
Sep 15
IAH5:47 pmHouston George Bush Intcntl
6h 10m
1 stop
PHL12:57 amPhiladelphia
$151
Find similar
Frontier
Sep 11
PHL8:30 amPhiladelphia
7h 34m
1 stop
IAH3:04 pmHouston George Bush Intcntl
Sep 19
IAH5:47 pmHouston George Bush Intcntl
6h 10m
1 stop
PHL12:57 amPhiladelphia
$153
Find similar

Spirit Airlines flights from Philadelphia to Houston George Bush Intcntl Airport

Our best Spirit Airlines deals on Philadelphia to Houston George Bush Intcntl Airport flight tickets
Spirit Airlines
Sep 12
PHL2:07 pmPhiladelphia
9h 23m
1 stop
IAH10:30 pmHouston George Bush Intcntl
Sep 16
IAH5:30 amHouston George Bush Intcntl
6h 32m
1 stop
PHL1:02 pmPhiladelphia
$156
Find similar
Spirit Airlines
Sep 12
PHL2:07 pmPhiladelphia
9h 23m
1 stop
IAH10:30 pmHouston George Bush Intcntl
Sep 17
IAH5:30 amHouston George Bush Intcntl
6h 32m
1 stop
PHL1:02 pmPhiladelphia
$158
Find similar
Spirit Airlines
Aug 25
PHL2:06 pmPhiladelphia
10h 02m
1 stop
IAH11:08 pmHouston George Bush Intcntl
Aug 27
IAH5:45 amHouston George Bush Intcntl
6h 16m
1 stop
PHL1:01 pmPhiladelphia
$160
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momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Houston George Bush Intcntl Airport 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, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Philadelphia to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Mon 9/8

2:07 pm-10:30 pm

1 stop9h 23m

Houston George Bush Intcntl

Thu 9/18

4:04 pm-12:36 am

1 stop7h 32m

$148

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Wed 10/8

8:00 am-10:47 am

1 stop27h 47m

Houston George Bush Intcntl

Thu 10/9

2:12 pm-3:13 pm

1 stop24h 01m

$149

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Thu 9/11

8:30 am-3:04 pm

1 stop7h 34m

Houston George Bush Intcntl

Mon 9/15

5:47 pm-12:57 am

1 stop6h 10m

$151

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Thu 9/11

8:30 am-3:04 pm

1 stop7h 34m

Houston George Bush Intcntl

Fri 9/19

5:47 pm-12:57 am

1 stop6h 10m

$153

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Fri 9/12

12:01 pm-8:15 pm

1 stop9h 14m

Houston George Bush Intcntl

Fri 9/19

5:47 pm-12:57 am

1 stop6h 10m

$155

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Fri 9/12

2:07 pm-10:30 pm

1 stop9h 23m

Houston George Bush Intcntl

Tue 9/16

5:30 am-1:02 pm

1 stop6h 32m

$156

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Fri 9/12

2:07 pm-10:30 pm

1 stop9h 23m

Houston George Bush Intcntl

Wed 9/17

5:30 am-1:02 pm

1 stop6h 32m

$158

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Thu 12/11

5:15 am-10:59 am

1 stop6h 44m

Houston George Bush Intcntl

Mon 12/15

4:42 pm-12:32 am

1 stop6h 50m

$163

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Mon 9/8

4:03 pm-4:50 pm

2 stops25h 47m

Houston George Bush Intcntl

Wed 9/10

7:31 pm-9:46 am

1 stop13h 15m

$164

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Fri 9/19

6:15 am-8:15 pm

1 stop15h 00m

Houston George Bush Intcntl

Tue 9/23

7:31 pm-9:46 am

1 stop13h 15m

$169

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Philadelphia to Houston George Bush Intcntl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of September is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Philadelphia, with most prices found around $206. If you are unable to visit Houston George Bush Intcntl Airport during the month of September, then departing from Philadelphia during the month October is also very affordable. Most momondo users find prices during this month for around $226.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Philadelphia to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $335. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $454.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Philadelphia to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $162. Try not to purchase tickets in the morning because they tend to be around $402. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Philadelphia to Houston George Bush Intcntl flight route?

Fly from Philadelphia to Houston George Bush Intcntl for the best Philadelphia - Houston George Bush Intcntl flight prices

How far in advance should I book a flight to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $309 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Philadelphia for as low as $243 on momondo.

What cabin class options are available on Philadelphia to Houston George Bush Intcntl flights?

There are 4 cabin classes available to choose from on Philadelphia to Houston George Bush Intcntl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Philadelphia to Houston George Bush Intcntl Airport flight prices changed over time?

As of August 2025, prices for Philadelphia to Houston George Bush Intcntl Airport flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Houston George Bush Intcntl Airport (PHL to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Houston George Bush Intcntl Airport

Best Price Found

$133

Fastest flight time

3h 27m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Philadelphia in the past 72 hours is $133. The best round-trip flight deal from Philadelphia to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $245.
The fastest flight from Philadelphia to Houston George Bush Intcntl Airport takes 3h 27m
Direct flights go from Philadelphia to Houston George Bush Intcntl Airport every day.
Search flight deals

  • How far is Philadelphia to Houston George Bush Intcntl by plane?

    Houston George Bush Intcntl is 1328.8 mi away from Philadelphia. Typically, this will take 6h 13m by plane in normal conditions.

  • When did momondo last update prices for flights from Philadelphia Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Philadelphia Airport to Houston George Bush Intcntl Airport refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from Philadelphia Airport to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents you'll need for your trip to Houston George Bush Intcntl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston George Bush Intcntl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Houston George Bush Intcntl Airport?

  • What is the most popular airline from Philadelphia to Houston George Bush Intcntl Airport?

Best airlines flying from Philadelphia to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Philadelphia to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $59Free CancellationRating
6.3
8,039 reviews
Search Spirit Airlines flights
FrontierPriceFrom $120Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
American AirlinesPriceFrom $176Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $208Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
7,982 reviews
Search Delta flights

  • United Airlines Flights From Philadelphia to Houston George Bush Intcntl Airport

    United Airlines flight deals from Philadelphia to Houston George Bush Intcntl Airport start from $208 round-trip. Over the 25 United Airlines flights for this route in a normal week, average airfare is usually $413 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From Philadelphia to Houston George Bush Intcntl Airport

    The best American Airlines deal for Philadelphia to Houston George Bush Intcntl Airport flight tickets found on momondo in the last 72 hours was $176, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $324 round-trip. American Airlines operates 18 flights out of Philadelphia into Houston George Bush Intcntl Airport in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Humble
Cypress
Spring
Montgomery
Tomball
Livingston
Jersey Village

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Houston?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Houston from Philadelphia.

Can I find flights from Philadelphia to Houston with flexible booking policies on momondo?

Yes. All flights to Houston from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to Houston?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Houston.

I’m not ready to book a flight from Philadelphia to Houston right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Philadelphia to Houston flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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