$89 Cheap Flights from Houston (IAH) to Philadelphia (PHL)

View $89 flight on Fri, May 2, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Houston to Philadelphia (IAH-PHL)

Prices were available within the past 7 days and start at $89 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, May 3 - Sat, Jun 14
IAH
Houston
PHL
Philadelphia
$163 Roundtrip, found 1 day ago
$163
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, May 3 from Houston to Philadelphia, returning Sat, Jun 14, priced at $163 found 1 day ago
Spirit Airlines
Fri, May 2 - Sat, May 10
IAH
Houston
PHL
Philadelphia
$168 Roundtrip, found 4 hours ago
$168
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Fri, May 2 from Houston to Philadelphia, returning Sat, May 10, priced at $168 found 4 hours ago
Spirit Airlines
Fri, May 2 - Sat, May 10
IAH
Houston
PHL
Philadelphia
$171 Roundtrip, found 4 hours ago
$171
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Fri, May 2 from Houston to Philadelphia, returning Sat, May 10, priced at $171 found 4 hours ago
Spirit Airlines
Sat, May 3 - Sat, Jun 14
IAH
Houston
PHL
Philadelphia
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, May 3 from Houston to Philadelphia, returning Sat, Jun 14, priced at $178 found 1 day ago
Spirit Airlines
Sat, May 3 - Sat, May 10
IAH
Houston
PHL
Philadelphia
$181 Roundtrip, found 7 hours ago
$181
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Sat, May 3 from Houston to Philadelphia, returning Sat, May 10, priced at $181 found 7 hours ago
Spirit Airlines
Fri, May 2 - Tue, May 13
IAH
Houston
PHL
Philadelphia
$183 Roundtrip, just found
$183
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, May 2 from Houston to Philadelphia, returning Tue, May 13, priced at $183 just found
American Airlines
Sat, Aug 30 - Tue, Sep 2
IAH
Houston
PHL
Philadelphia
$185 Roundtrip, just found
$185
Roundtrip
just found
Select American Airlines flight, departing Sat, Aug 30 from Houston to Philadelphia, returning Tue, Sep 2, priced at $185 just found
United
Sat, Aug 30 - Tue, Sep 2
IAH
Houston
PHL
Philadelphia
$185 Roundtrip, just found
$185
Roundtrip
just found
Select United flight, departing Sat, Aug 30 from Houston to Philadelphia, returning Tue, Sep 2, priced at $185 just found
Frontier Airlines
Thu, May 8 - Wed, Jun 11
IAH
Houston
PHL
Philadelphia
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 8 from Houston to Philadelphia, returning Wed, Jun 11, priced at $202 found 1 day ago
JetBlue Airways
Wed, Jun 11 - Fri, Jun 20
IAH
Houston
PHL
Philadelphia
$276 Roundtrip, found 2 hours ago
$276
Roundtrip
found 2 hours ago
Select JetBlue Airways flight, departing Wed, Jun 11 from Houston to Philadelphia, returning Fri, Jun 20, priced at $276 found 2 hours ago
Flights from Houston (IAH) to Philadelphia (PHL)
Origin airport
George Bush Intercontinental
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$163
Distance
1323 mi

Houston to Philadelphia Flights

The cheapest times to fly from Houston to Philadelphia

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 Houston to Philadelphia are during the month of May. You can find some of the cheapest flights from Houston to Philadelphia with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Houston to Philadelphia

Sunday is one of the best days to book for cheap flights from Houston to Philadelphia: 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 Houston to Philadelphia

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 Houston to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 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 Houston to Philadelphia 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 Houston to Philadelphia 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 George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL) cost?
You can score cheap return flights from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL) starting at $128. Book a seat and be on your way. 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 IAH on May 19 2025 and touching down at PHL. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from IAH to PHL?
The cheapest flights from IAH to PHL 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 George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
You can fly nonstop from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL) on a United Airlines flight.
What is the cheapest airline that flies from IAH to PHL?
Book a flight from IAH to PHL with Spirit Airlines. This carrier currently has the cheapest one-way ticket on this route, starting from $64. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAH on June 18 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
When taking off from George Bush Intercontinental Airport (IAH), you’ll have a choice from an average of 3 daily direct flights to Philadelphia Intl. Airport (PHL).
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
The 6 PM departures from IAH to PHL are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you’re hoping to save money, book during off-peak hours.
What day of the week has the most flights from IAH to PHL?
If you travel on a Sunday, you’ll get the largest range of choices for flights from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL).
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
Hop on the earliest flight at around 7:20AM UTC-6, heading out of George Bush Intercontinental Airport (IAH). You’ll be flying for roughly 3h 21m, reaching Philadelphia Intl. Airport (PHL) at approximately 11:41AM UTC-5.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
The average flight duration from IAH to PHL is 3 hours and 19 minutes, covering a total distance of 1,300 mi.
What airline has the least delays from IAH to PHL?
With 83% of journeys generally landing on schedule, United Airlines has the best on-time performance for direct flights from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL). To check your flight status and get notifications about any changes, use the Expedia App.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
Book a flight from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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 Philadelphia from George Bush Intercontinental Airport (IAH)?
Philadelphia Intl. Airport (PHL) is the only airport in Philadelphia with direct flights from George Bush Intercontinental Airport (IAH). Consider the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from IAH to PHL shortly before your getaway is generally more expensive. However, if you’re flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book an IAH to PHL flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to PHL flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Philadelphia Intl. Airport (PHL)?
It’s usually possible to reschedule or cancel your IAH to PHL flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.