$89 Find Cheap Flights from Philadelphia to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Houston departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Houston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Houston.
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Everything you should know

Cheapest round-trip
$180
Overall average: $299
Spirit Airlines
Sat 1/17Mon 1/26
PHL - IAH • 2 stops
Cheapest non-stop
$213
Typical prices: $259-$495
Frontier
Wed 12/31Thu 1/8
PHL - IAH • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Main Cabin Extra includes early boarding.
Spirit's Big Front Seat offers extra width and legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Houston
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Top airlines
United Airlines
Cheapest • from $219 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
PHL-IAH
Cheapest
PHL-IAH
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 26% compared to booking last minute.
Insights
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Flight Deals

Cheap Flights from Philadelphia to Houston (PHL-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Houston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Houston

Sat, Jan 17 - Mon, Jan 26
Spirit Airlines Logo
5:30 am - 8:23 pm
PHL
-
IAH
15h 53m2 stops
Spirit Airlines Logo
4:15 pm - 11:14 am
IAH
-
PHL
17h 59m2 stops
$180Spirit Airlines
Fri, Jan 16 - Sun, Jan 25
Multiple Airlines Logo
5:30 am - 2:57 pm
PHL
-
IAH
10h 27m1 stop
Multiple Airlines Logo
8:18 pm - 11:18 am
IAH
-
PHL
14h 00m2 stops
$181Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
7:30 am - 6:28 pm
PHL
-
IAH
11h 58m1 stop
Frontier Logo
5:49 pm - 12:52 am
IAH
-
PHL
6h 03m1 stop
$182Frontier
Thu, Feb 12 - Tue, Feb 17
Frontier Logo
1:02 pm - 10:14 am
PHL
-
IAH
22h 12m1 stop
Frontier Logo
8:18 pm - 12:39 pm
IAH
-
PHL
15h 21m1 stop
$183Frontier
Thu, Jan 8 - Fri, Jan 9
Spirit Airlines Logo
8:43 pm - 3:08 pm
PHL
-
IAH
19h 25m2 stops
Spirit Airlines Logo
7:09 pm - 7:48 pm
IAH
-
PHL
23h 39m2 stops
$184Spirit Airlines
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
8:20 am - 7:24 pm
PHL
-
IAH
12h 04m2 stops
Multiple Airlines Logo
6:05 pm - 12:52 am
IAH
-
PHL
5h 47m1 stop
$185Multiple Airlines
Sat, Mar 28 - Wed, Apr 1
Delta Logo
5:00 pm - 10:28 pm
PHL
-
HOU
6h 28m1 stop
Delta Logo
10:35 am - 6:20 pm
HOU
-
PHL
6h 45m1 stop
$239Delta
Tue, Jan 13 - Tue, Jan 20
Southwest Logo
5:45 pm - 10:40 pm
PHL
-
HOU
5h 55m1 stop
Southwest Logo
6:30 am - 4:20 pm
HOU
-
PHL
8h 50m2 stops
$244Southwest
Sat, Jan 17 - Tue, Jan 20
Southwest Logo
1:25 pm - 7:20 pm
PHL
-
HOU
6h 55m2 stops
Southwest Logo
6:30 am - 4:20 pm
HOU
-
PHL
8h 50m2 stops
$249Southwest
Sat, Jan 10 - Tue, Jan 13
Delta Logo
5:40 am - 10:21 am
PHL
-
HOU
5h 41m1 stop
Delta Logo
5:45 am - 1:24 pm
HOU
-
PHL
6h 39m1 stop
$254Delta
Booking Insights

KAYAK's insights & trends for Philadelphia to Houston flights

Get data-powered insights and trends into flights from Philadelphia to Houston to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Houston
Find cheap flights to Houston

Planning a trip from Philadelphia to Houston? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What is the cheapest Philadelphia to Houston flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Philadelphia to Houston costs $202 on the route between Philadelphia (PHL) and Houston George Bush Intcntl Airport (IAH). It is also the most popular route.

What’s the cheapest day of the week to fly from Philadelphia to Houston?

The average price of all round-trip flights from Philadelphia to Houston clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Houston on a Wednesday and more expensive on a Monday. On your return trip to Philadelphia, you should consider flying back on a Saturday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Houston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Houston is September, where tickets cost $269 (return) on average. On the other hand, the most expensive months are April and February, where the average cost of round-trip tickets is $382 and $375 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Houston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Houston, you should book around 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to Houston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

Upgrade to Economy Plus for up to 6 inches more legroom on domestic flights.


Consider Priority Boarding to secure overhead bin space, placing you in Zone 2.

American Airlines

Main Cabin Extra offers early boarding and complimentary drinks, ideal for longer flights.


Download the American Airlines app for inflight entertainment on domestic flights.

Spirit Airlines

Opt for the Big Front Seat for 20-inch width and 11-inch extra legroom.


Spirit's Wi-Fi offers gate-to-gate connectivity, ideal for staying online throughout the flight.

Airports
PHL

PHL offers public transportation via SEPTA trains to Center City, taking about 30 minutes. It's a cost-effective option compared to taxis or rideshares.

IAH

For ground transportation at IAH, rideshare apps like Uber and Lyft are convenient, but note there's no pickup at Terminal E.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines and PHL

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
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez

Joe Cortez

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Read more
John Walton

John Walton

Expert on IAH

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

Good to know

Cheapest flight$89
Flight from Philadelphia to Houston George Bush Airport

When to book flights from Philadelphia to Houston

Are your dates flexible? Find out the best times to travel from Philadelphia to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Houston

  • What is the cheapest flight from Philadelphia to Houston?

    In the last 3 days, the lowest price for a flight from Philadelphia to Houston was $89 for a one-way ticket and $180 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Houston?

    A passport is required to fly from Philadelphia to Houston.

  • Which aircraft models fly most regularly from Philadelphia to Houston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Houston?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Philadelphia and Houston, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Philadelphia to Houston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Houston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Houston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Houston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Houston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Philadelphia to Houston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to Houston.
Find which airlines fly direct from Philadelphia Airport to Houston, which days they fly and book direct flights.

Direct departures

Philadelphia to Houston

Monday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, United Airlines

American Airlines, United Airlines

Thursday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

See more direct flights

Direct returns

Houston to Philadelphia

Monday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Thursday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

American Airlines, Frontier, United Airlines

American Airlines, Frontier, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Philadelphia to Houston

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Houston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
8.0Comfort
7.0Food
7.5Entertainment
8.6Crew
8.1Boarding
Airline reviews

No delays and arrived to destination 30 min early. Staff was super friendly.

10.0 ExcellentIlevba, Nov 2025
DCA - DAL
Read more Southwest reviews

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Was good. I miss the free 2 checked bags. That was part of what made Southwest special

For my birthday trip this was my second time ever flying, this trip was the best.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Even though we were delayed, we were able to make our connection

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

This was my first time on a budget airline and I couldn't even sit down all the way because my knees would embed in the seat in front of me. I'm only 6' tall with a 32" inseam. There's no upside other than y'all are cheap. I'm glad it was only a 2 hour flight. Lesson learned! I get why everybody talks down on budget airlines. The staff was outstanding, the flight went as well as possible, great pilot, great boarding, smooth sailing. Zero chance I'll be back though.

My baby was crying uncontrollably for the longest time and the entire crew was SO supportive, I’m so appreciative of them. Thank you so much for the support during an exhausting moment. We got very lucky.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Boarding and unboarding processes were pretty smooth. I gave a low score for Boarding because of how my flight was missing from all the boards at the airport, and when I checked the flight status on the Spirit website, it said it would be departing from Terminal E, gate D15. There are no "D" gates in terminal E.

The flight was on time and the crew was very professional and accommodating. When other airlines are canceling flights Spirit is still flying with on time flights. I have no complaints and will continue to choose Spirit when it is the best option for me.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

Waited at the airport for over 4 hours to board this flight. Terrible airline

Flight was good and on time. Everyone was nice. Seats aren't very comfortable

The seats are too small the plane makes weird noise when landing 🛬

For the minimalist experience, it is really a great ride-- feels a little like public transport i guess

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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

Information on your arrival and departure airports