Cheap flights from Philadelphia International to Houston

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Flight deals from Philadelphia International to Houston

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia International Airport to Houston? If you want to travel next month, round-trip fares start from $162. Find the lowest prices on one-way and round-trip tickets right here.

Houston.$145 per passenger.Departing Mon, May 18, returning Mon, May 18.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Mon, May 18, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Mon, May 18, arriving in Philadelphia International.Price includes taxes and charges.From $145, select.

Houston.$145 per passenger.Departing Wed, May 27, returning Tue, Jun 2.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Wed, May 27, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Jun 2, arriving in Philadelphia International.Price includes taxes and charges.From $145, select.

Houston.$162 per passenger.Departing Mon, Jun 1, returning Thu, Jun 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Mon, Jun 1, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Thu, Jun 4, arriving in Philadelphia International.Price includes taxes and charges.From $162, select.

Houston.$188 per passenger.Departing Thu, Aug 13, returning Tue, Aug 18.Round-trip flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departing from Philadelphia International on Thu, Aug 13, arriving in Houston Hobby.Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Aug 18, arriving in Philadelphia International.Price includes taxes and charges.From $188, select.

Houston.$195 per passenger.Departing Tue, May 26, returning Sat, Aug 1.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, May 26, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Sat, Aug 1, arriving in Philadelphia International.Price includes taxes and charges.From $195, select.

Houston.$201 per passenger.Departing Tue, May 26, returning Fri, Jul 31.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, May 26, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Fri, Jul 31, arriving in Philadelphia International.Price includes taxes and charges.From $201, select.

Houston.$207 per passenger.Departing Tue, Jul 14, returning Tue, Jul 28.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, Jul 14, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Jul 28, arriving in Philadelphia International.Price includes taxes and charges.From $207, select.

Houston.$210 per passenger.Departing Tue, Sep 1, returning Tue, Sep 8.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, Sep 1, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Sep 8, arriving in Philadelphia International.Price includes taxes and charges.From $210, select.

Houston.$220 per passenger.Departing Tue, Jun 30, returning Wed, Jul 1.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, Jun 30, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Wed, Jul 1, arriving in Philadelphia International.Price includes taxes and charges.From $220, select.

Houston.$224 per passenger.Departing Mon, Jun 1, returning Sat, Aug 15.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Mon, Jun 1, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Sat, Aug 15, arriving in Philadelphia International.Price includes taxes and charges.From $224, select.

Houston.$225 per passenger.Departing Fri, Jul 31, returning Tue, Aug 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Fri, Jul 31, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Aug 4, arriving in Philadelphia International.Price includes taxes and charges.From $225, select.

Houston.$234 per passenger.Departing Wed, Jun 24, returning Sat, Jun 27.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Philadelphia International on Wed, Jun 24, arriving in Houston George Bush Intercntl..Inbound direct flight with Frontier Airlines departing from Houston George Bush Intercntl. on Sat, Jun 27, arriving in Philadelphia International.Price includes taxes and charges.From $234, select.

Houston.$239 per passenger.Departing Wed, Aug 26, returning Mon, Aug 31.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Philadelphia International on Wed, Aug 26, arriving in Houston George Bush Intercntl..Inbound direct flight with Frontier Airlines departing from Houston George Bush Intercntl. on Mon, Aug 31, arriving in Philadelphia International.Price includes taxes and charges.From $239, select.

Houston.$265 per passenger.Departing Thu, Oct 8, returning Sun, Oct 11.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Thu, Oct 8, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Sun, Oct 11, arriving in Philadelphia International.Price includes taxes and charges.From $265, select.

Houston.$269 per passenger.Departing Fri, Aug 28, returning Fri, Sep 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Fri, Aug 28, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Fri, Sep 4, arriving in Philadelphia International.Price includes taxes and charges.From $269, select.

Houston.$277 per passenger.Departing Wed, Jul 8, returning Tue, Jul 14.Round-trip flight with United.Outbound direct flight with United departing from Philadelphia International on Wed, Jul 8, arriving in Houston George Bush Intercntl..Inbound direct flight with United departing from Houston George Bush Intercntl. on Tue, Jul 14, arriving in Philadelphia International.Price includes taxes and charges.From $277, select.

Find the cheapest month to fly from Philadelphia International to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Houston flights are currently cheapest in May.

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Direct flights from Philadelphia International to Houston

Alternative Philadelphia International to Houston routes

Looking for the cheapest, fastest or easiest route from Philadelphia International to Houston? You could fly into the following airports instead.

Philadelphia to Houston: Flight information

The things to know before you go.

Cheapest flight found	$145
Cheapest month to fly	May
Average flight time	3 hrs, 47 mins
Most popular airline	American Airlines
Average flights per week	112

Finding cheap flights from Philadelphia International to Houston: Frequently asked questions

How many airports are there in Houston?

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.

How much are round-trip flights from Philadelphia International to Houston?

The best price we found for a round-trip flight from Philadelphia International to Houston is $145. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Philadelphia International to Houston?

3 hours and 47 minutes is the average flight time from Philadelphia International to Houston.

Which airlines fly direct from Philadelphia International to Houston?

American Airlines, United and Qatar Airways fly direct from Philadelphia International to Houston.

How many flights are there a week from Philadelphia International to Houston?

There are 112 flights per week flying from Philadelphia International to Houston, as of May 2026.

When is the cheapest time to fly from Philadelphia International to Houston?

The cheapest month to fly from Philadelphia International to Houston is usually May.

What's the cheapest airport to fly to in Houston?

If you're flying from Philadelphia International Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 25.0 km away from the center of Houston. We've found flights to this airport from $145.

Which upcoming date is cheapest to fly from Philadelphia International Airport to Houston on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Houston on Monday, May 18, 2026.

Can I get a direct flight from Philadelphia International Airport to Houston?

Yes – the average flight time is 3 hours and 47 minutes.

How can I get the best flight deal from Philadelphia International Airport to Houston?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Houston?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Houston?

In May, the average temperature is usually around 25°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.

Which is the cheapest airline to fly with from Philadelphia International Airport to Houston?

Currently, Frontier Airlines offers the cheapest flight tickets to Houston.

Traveling from Philadelphia International Airport (PHL) to Houston: what you need to know

Expect to be traveling for 3 hours 20 minutes. On average, that's the time it takes for a direct flight from Philadelphia International Airport to Houston.
The timezone in Houston is UTC-5. The city is one hour behind Philadelphia, where Philadelphia International Airport is located.
The busiest route is from Philadelphia International Airport (PHL) to George Bush Intercontinental Airport (IAH). You can select from 37 services every week between these two airports. If you want to get on your way as soon as you can, the earliest flight from PHL to IAH is the 06:00 United Airlines service. If you're planning to fly out later on, the final departure is at 18:53 with American Airlines.
To avoid rushing for your PHL to Houston flight, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.
If you're traveling during a major holiday or another peak period, give yourself extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.
Start your journey at PHL and travel straight to George Bush Intercontinental Airport (IAH). That's where you can expect to touch down when searching for Philadelphia International Airport to Houston tickets.
Pick from a variety of carriers that offer direct flights from Philadelphia International Airport to Houston. Get up and away with one of these:
PHL is around 11 kilometers from central Philadelphia. If you're catching a cab, driving or ride-sharing from the center, it'll take you 15 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 45 minutes.
In search of a hotel near PHL? If you're boarding an early flight from Philadelphia International Airport to Houston, these stays will get you from your pillow to the plane in no time:
78.93% of flights taking off from Philadelphia International Airport touch down at their destination on time.
You'll find PHL at 8500 Essington Ave.

How to find the cheapest flights from Philadelphia International Airport (PHL) to Houston

$95 is the cheapest price we've seen for a one-way Philadelphia International Airport to Houston flight. A return ticket right now is $145. Depending on when you want to go and the availability, these fares could change.
Book two months before flying. Research on pricing trends suggests this is the ideal window for finding cheap flights from PHL to Houston.
The best month for scoring cheap Philadelphia International Airport to Houston tickets is June. Use the 'Whole month' tool to compare flight prices, then choose the dates that offer the lowest fares.
Spend less time searching for cheap flights from PHL to Houston by creating a Price Alert. You'll get an email or notification on the app when a new low fare is offered.
Select your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Philadelphia International Airport to Houston by 'Best,' 'Fastest' or 'Cheapest.'

Airports in Houston

George Bush Intercontinental Airport (IAH)

George Bush Intercontinental Airport (IAH) to the center of Houston takes around 20 minutes to reach by car. The center is roughly 27 kilometers away.
Traveling to the center on public transport takes around 50 minutes.
Consider booking a hotel near IAH if you're coming in on a late flight from Philadelphia International Airport to Houston. Pick one of these accommodation options and make your arrival easier:
Get on the fast track to adventure by picking up a George Bush Intercontinental Airport rental car. Grab your wheels from Dollar, Thrifty or Sixt and experience the lesser-explored corners of Houston and beyond.
Lock in the lowest price by booking your vehicle from George Bush Intercontinental Airport about three weeks before your flight from PHL to Houston.
You'll find IAH at 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

William P. Hobby Airport (HOU) is about 19 kilometers from the center of Houston. Once you've hopped off your flight from Philadelphia International Airport to Houston, it'll take you around 20 minutes to get to the heart of the city in a ride-share or cab.
You can expect the journey to take roughly 1 hour 40 minutes on public transport.
Hang the 'Do not disturb' sign on your door and relax at a hotel near HOU. Here are a few options where you can tuck yourself in after your PHL to Houston flight:
The fastest way to reach your destination is with a William P. Hobby Airport rental car. Pick up a set of wheels from Easirent, Dollar or Thrifty and get going in the blink of an eye.
Score the best price by securing your ride from HOU four weeks in advance. You can also expect to have a wider range of vehicles.
You'll find William P. Hobby Airport at 7800 Airport Boulevard.

Best time to go to Houston

Visit Houston during the high season if you prefer a busy atmosphere, but remember that prices tend to be higher. Alternatively, book flights from Philadelphia International Airport to Houston in the off-season when prices are cheaper and it's not as busy.
The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your Philadelphia International Airport to Houston flight ticket then if this is the type of weather you enjoy.
Look for cheap tickets from PHL to Houston in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

More about Houston

Start your Houston trip off on the right foot by choosing the perfect place to stay. After booking your flight from Philadelphia International Airport to Houston, explore our range of hotels including:
There are so many things to see and do in this city it can be difficult to know where to begin. The Museum of Fine Arts, Houston, Beck Building, The Houston Museum of Natural Science and Hermann Park are leading attractions which should be on every Houston itinerary.

Explore more of United States

Houston has plenty going for it, but there are so many other corners of United States waiting to be explored. About 306 kilometers west of Houston, a visit to San Antonio will fill your itinerary to the brim. Don't miss top attractions like The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.
If you're looking to explore another corner of United States, consider Dallas, roughly 370 kilometers north of Houston. Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art are among the biggest draws.