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Philadelphia to Houston - Flights Starting at US$21

Book one-way or return flights from Philadelphia to Houston from as little as US$21. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

We've found these cheap flights for you. You may book a one-way or round trip as per your needs.

We monitor flight fares to help you seize the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Philadelphia to Houston

View airlines operating flights from Philadelphia to Houston. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Spirit Airlines
From US$26
Frontier Airlines
From US$47
American Airlines
From US$68
Delta Air Lines
From US$91
United Airlines
From US$103
Sun Country Airlines
From US$129
Southwest Airlines
From US$139
Alaska Airlines
From US$237
Jetblue Airways
From US$272
ANA airlines

Find more flights and airlines

Alternative Routes from Philadelphia to Houston

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Philadelphia to Houston.

  • Cheapest
    Spirit Airlines
    PHL
    08:00
    3h 40m
    Direct
    IAH
    10:40
    Philadelphia International Airport - George Bush Intercontinental Airport
    Wed, May 15Spirit Airlines
    US$26
  • Frontier Airlines
    TTN
    17:07
    27h 1m
    1 transfer
    HOU
    19:08
    Trenton Mercer Airport - William P. Hobby Airport
    Tue, May 14Frontier Airlines
    US$68
  • Frontier Airlines
    TTN
    21:59
    10h 21m
    1 transfer
    IAH
    07:20
    Trenton Mercer Airport - George Bush Intercontinental Airport
    Mon, Apr 29Frontier Airlines
    US$121
  • Frontier Airlines
    TTN
    21:59
    10h 21m
    1 transfer
    IAH
    07:20
    Trenton Mercer Airport - George Bush Intercontinental Airport
    Mon, Apr 29Frontier Airlines
    US$121
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Philadelphia (PHL) to Houston (HOU) the cheapest?

    Airlines adjust prices for flights from Philadelphia to Houston based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Philadelphia (PHL) to Houston (HOU) cost?

    According to Trip.com's data, the lowest price is around $293.
  • How long does it take to fly from Philadelphia (PHL) to Houston (HOU) and what is the distance?

    It takes around 3 hours 38 minutes to fly from Philadelphia (PHL) to Houston (HOU).
  • What are the most popular airlines that fly from Philadelphia (PHL) to Houston (HOU)?

    Airlines with flights from Philadelphia (PHL) to Houston (HOU): Emirates, United Airlines, Air New Zealand, American Airlines, Spirit Airlines and British Airways.

How to find a cheap flight from Philadelphia to Houston

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Philadelphia to Houston. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Philadelphia to Houston Flight Information

Cheapest nonstop flight price

$21

Cheapest round-trip ticket price

$60

Off-season for travel

May

Peak season for travel

October

Flight distance

2,149.76km

Average flight time

3 hours 38 minutes

Popular airline

Delta Air Lines