$149 Cheap United flights Philadelphia (PHL) to Houston (IAH)

View $149 flight on Mon, Dec 8, 2025Opens in a new window

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$149 Cheap United flights Philadelphia (PHL) to Houston (IAH)

Prices were available within the past 7 days and start at $149 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 10 - Thu, Nov 13
PHL
Philadelphia
IAH
Houston
$297 Roundtrip, just found
$297
Roundtrip
just found
Select United flight, departing Mon, Nov 10 from Philadelphia to Houston, returning Thu, Nov 13, priced at $297 just found
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
Popular airline
Spirit Airlines
Distance
1323 mi
Average flight time
3 hours 31 mins

Frequently asked questions

How much is a United Airlines flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $297 from PHL to IAH. Affordable one-way options from $149 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PHL to IAH with United Airlines?
United Airlines flights to Houston are usually more affordable in the quieter months of November and February. Whether you're searching for a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH) with United Airlines?
Start searching one to three months ahead of your travel date to find cheaper fares on United Airlines flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Take off on one of United Airlines's 19 weekly direct flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). To see your choices, enter your destination, origin and dates and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from PHL to IAH with United Airlines?
Depart Philadelphia Intl. Airport (PHL) for George Bush Intercontinental Airport (IAH) on a direct United Airlines flight, and you'll be in the skies for approximately 4h.
Which day of the week has the most United Airlines flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
If you're looking for flexibility, Thursday offers the most choice for United Airlines flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). Take your pick of 3 different departures.
What is the earliest United Airlines flight from PHL to IAH?
The first flight from PHL to IAH with United Airlines leaves at 8:00AM UTC-5. You'll land at 10:56AM UTC-6. The last United Airlines flight of the day takes off at 5:31PM UTC-5 and arrives at 8:40PM UTC-6. With around 20% fewer cancellations for early and mid-morning departures, setting off early is generally the smartest choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Houston?
George Bush Intercontinental Airport (IAH) is the main Houston gateway for United Airlines flights from Philadelphia Intl. Airport (PHL).
Why fly with United Airlines from PHL to IAH?
With a rewarding loyalty program, United Airlines is a popular choice for many passengers flying from PHL to IAH. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
United Airlines generally uses Boeing 737-900 planes for flights from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH). This airline also operates the Embraer 175 on this route. Keep in mind that aircraft type can vary due to operational reasons, so the plane you board might be different on your travel date.
Can I change or cancel my United Airlines flight from Philadelphia Intl. Airport (PHL) to George Bush Intercontinental Airport (IAH)?
Depending on the type of fare you purchased, a fee generally applies if you change or cancel your flight more than 24 hours after confirmation. To find tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes while searching for flights. To learn more about modifying or canceling your reservation, head to "Trips," select your flight and tick "Manage Booking."

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