$57 Cheap Flights from Philadelphia (PHL) to Houston (IAH)

View $57 flight on Wed, Aug 6, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Philadelphia to Houston (PHL-IAH)

Prices were available within the past 7 days and start at $57 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Aug 6 - Tue, Aug 12
PHL
Philadelphia
IAH
Houston
$114 Roundtrip, just found
$114
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 6 from Philadelphia to Houston, returning Tue, Aug 12, priced at $114 just found
Spirit Airlines
Wed, Aug 6 - Mon, Aug 11
PHL
Philadelphia
IAH
Houston
$120 Roundtrip, just found
$120
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 6 from Philadelphia to Houston, returning Mon, Aug 11, priced at $120 just found
Spirit Airlines
Thu, Aug 7 - Sun, Aug 10
PHL
Philadelphia
IAH
Houston
$126 Roundtrip, just found
$126
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 7 from Philadelphia to Houston, returning Sun, Aug 10, priced at $126 just found
Spirit Airlines
Mon, Jul 28 - Wed, Aug 6
PHL
Philadelphia
IAH
Houston
$138 Roundtrip, found 18 hours ago
$138
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Mon, Jul 28 from Philadelphia to Houston, returning Wed, Aug 6, priced at $138 found 18 hours ago
Spirit Airlines
Wed, Aug 6 - Tue, Aug 12
PHL
Philadelphia
IAH
Houston
$140 Roundtrip, just found
$140
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 6 from Philadelphia to Houston, returning Tue, Aug 12, priced at $140 just found
Spirit Airlines
Sat, Aug 2 - Tue, Aug 5
PHL
Philadelphia
IAH
Houston
$142 Roundtrip, just found
$142
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Aug 2 from Philadelphia to Houston, returning Tue, Aug 5, priced at $142 just found
United
Wed, Oct 8 - Tue, Oct 14
PHL
Philadelphia
IAH
Houston
$147 Roundtrip, just found
$147
Roundtrip
just found
Select United flight, departing Wed, Oct 8 from Philadelphia to Houston, returning Tue, Oct 14, priced at $147 just found
American Airlines
Sat, Aug 23 - Tue, Aug 26
PHL
Philadelphia
IAH
Houston
$163 Roundtrip, found 1 hour ago
$163
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Aug 23 from Philadelphia to Houston, returning Tue, Aug 26, priced at $163 found 1 hour ago
Frontier Airlines
Tue, Sep 16 - Thu, Sep 18
PHL
Philadelphia
IAH
Houston
$176 Roundtrip, found 6 hours ago
$176
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Philadelphia to Houston, returning Thu, Sep 18, priced at $176 found 6 hours ago
JetBlue Airways
Sat, Nov 1 - Tue, Nov 4
PHL
Philadelphia
IAH
Houston
$247 Roundtrip, found 1 hour ago
$247
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Sat, Nov 1 from Philadelphia to Houston, returning Tue, Nov 4, priced at $247 found 1 hour ago

Find the cheapest month to fly from Philadelphia (PHL) to Houston (IAH)

September is typically the cheapest month to fly

From $48 - $176 per traveler.

Graph displaying average flight prices per month

Flights from Philadelphia (PHL) to Houston (IAH)
Origin airport
Philadelphia Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$114
Distance
1323 mi
Average flight time
3 hours 14 mins

Philadelphia to Houston Flights

The cheapest times to fly from Philadelphia to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Houston are during the month of August. You can find some of the cheapest flights from Philadelphia to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Houston

Sunday is one of the best days to book for cheap flights from Philadelphia to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $57 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH) cost?
Snag cheap return tickets starting at $100 from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving PHL on August 6 2025 and touching down at IAH. The price was last updated on July 10 2025 and has not changed since.
What is the cheapest month to fly from PHL to IAH?
The cheapest flights from PHL to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Board a direct flight with United Airlines and journey straight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH).
What is the cheapest airline that flies from PHL to IAH?
Travel from PHL to IAH with Spirit Airlines. This carrier currently offers the cheapest one-way fare on this route, starting at $50. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHL on August 12 2025. Prices were last updated on July 10 2025 and have not changed since.
How many flights per day from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
When jetting out of Philadelphia Intl. Airport (PHL), you can choose from an average of 3 daily nonstop flights to George Bush Intercontinental Airport (IAH).
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
The 8 AM departures from PHL to IAH are typically the busiest. They can also be more expensive. If you want to save money, pick a less crowded time to fly.
What day of the week has the most flights from PHL to IAH?
Friday has the most flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). Consider leaving on this day and you'll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Catch the earliest flight at around 8:00AM UTC-5, heading out of Philadelphia Intl. Airport (PHL). You'll be in the air for roughly 3h 56m, landing at George Bush Intercontinental Airport (IAH) at approximately 10:56AM UTC-6.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
It usually takes 3 hours and 59 minutes to fly the 1,300 mi from PHL to IAH.
What airline has the least delays from PHL to IAH?
Consider booking with American Airlines if you'd like to fly straight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH) without any holdups. This carrier has the strongest track record for punctuality, with an on-time performance of 82%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Book a flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from Philadelphia Intl. Airport (PHL)?
George Bush Intercontinental Airport (IAH) is the only airport in Houston with direct flights from Philadelphia Intl. Airport (PHL). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH) last-minute?
Last-minute fares from PHL to IAH are typically more expensive. For the lowest rates, start searching for flights as early as possible. That said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a PHL to IAH flight and hotel package?
You'll generally save money by booking a PHL to IAH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
In most cases, you're able to reschedule or cancel your PHL to IAH flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further information, visit our Customer Service portal.

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