$44 Cheap Flights from Houston (IAH) to Phoenix (PHX)

View $44 flight on Sat, Apr 18, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Phoenix Sky Harbor Intl. Airport (PHX)

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Cheap Flights from Houston to Phoenix (IAH-PHX)

Prices were available within the past 7 days and start at $44 for one-way flights and $88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Apr 18 - Sat, Apr 25
IAH
Houston
PHX
Phoenix
$88 Roundtrip, found 3 hours ago
$88
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Apr 18 from Houston to Phoenix, returning Sat, Apr 25, priced at $88 found 3 hours ago
Frontier Airlines
Sat, Apr 18 - Sun, Apr 26
IAH
Houston
PHX
Phoenix
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Apr 18 from Houston to Phoenix, returning Sun, Apr 26, priced at $108 just found
Frontier Airlines
Sat, Apr 25 - Sun, Apr 26
IAH
Houston
PHX
Phoenix
$118 Roundtrip, found 1 hour ago
$118
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Apr 25 from Houston to Phoenix, returning Sun, Apr 26, priced at $118 found 1 hour ago
Frontier Airlines
Thu, Apr 16 - Fri, Apr 17
IAH
Houston
PHX
Phoenix
$128 Roundtrip, found 1 hour ago
$128
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Apr 16 from Houston to Phoenix, returning Fri, Apr 17, priced at $128 found 1 hour ago
Frontier Airlines
Fri, May 1 - Sat, May 2
IAH
Houston
PHX
Phoenix
$133 Roundtrip, found 1 hour ago
$133
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, May 1 from Houston to Phoenix, returning Sat, May 2, priced at $133 found 1 hour ago
Frontier Airlines
Sat, May 2 - Tue, May 12
IAH
Houston
PHX
Phoenix
$138 Roundtrip, found 5 hours ago
$138
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, May 2 from Houston to Phoenix, returning Tue, May 12, priced at $138 found 5 hours ago
American Airlines
Sat, Apr 18 - Sun, Apr 26
IAH
Houston
PHX
Phoenix
$163 Roundtrip, just found
$163
Roundtrip
just found
Select American Airlines flight, departing Sat, Apr 18 from Houston to Phoenix, returning Sun, Apr 26, priced at $163 just found
Delta
Sat, May 16 - Sun, May 17
IAH
Houston
PHX
Phoenix
$231 Roundtrip, found 1 hour ago
$231
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, May 16 from Houston to Phoenix, returning Sun, May 17, priced at $231 found 1 hour ago
United
Sat, Apr 18 - Sun, Apr 26
IAH
Houston
PHX
Phoenix
$297 Roundtrip, just found
$297
Roundtrip
just found
Select United flight, departing Sat, Apr 18 from Houston to Phoenix, returning Sun, Apr 26, priced at $297 just found
Alaska Airlines
Tue, Apr 28 - Sat, May 9
IAH
Houston
PHX
Phoenix
$327 Roundtrip, found 3 hours ago
$327
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Apr 28 from Houston to Phoenix, returning Sat, May 9, priced at $327 found 3 hours ago

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Alternative airports near Phoenix

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $269
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $269

Find the cheapest month to fly from Houston (IAH) to Phoenix (PHX)

December is typically the cheapest month to fly

From $58 - $303 per traveler.

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $44 and cheap return flights from $88 Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights typically cost between $102 and $1049, and return flights often range between $249 and $1651. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
January is the cheapest month to fly from Houston (IAH) to Phoenix (PHX), with average return fares around $257. This price is about 14% lower than the average for the year, as travel demand typically decreases after the holiday season. Other cheap months to fly from Houston to Phoenix include September and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
There are 3 airlines offering direct flights from IAH to PHX:

  • United operates around 57 direct flights from IAH to PHX every week
  • American Airlines operates around 33 direct flights from IAH to PHX every week
  • Frontier Airlines operates around 10 direct flights from IAH to PHX every week

What is the cheapest airline that flies from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Frontier Airlines is one of the cheapest airlines offering nonstop flights from Houston (IAH) to Phoenix (PHX), with round-trip tickets starting from around $375. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best airline to fly with from Houston, TX (IAH) to Phoenix, AZ (PHX) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. American Airlines offers the most daily flights from IAH to PHX, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best time to fly from Houston, TX (IAH) to Phoenix, AZ (PHX) is in January or September. These months are the cheapest, with return flights averaging around $257. January is a great time to escape the winter chill, while September offers warm weather and fewer crowds, making your trip more enjoyable.*Prices based on flights available on Expedia in the last year.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
There are approximately 14 nonstop flights per day from George Bush Intercontinental (IAH) to Sky Harbor Intl. (PHX). For more options, look at flights that include layovers.
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from George Bush Intercontinental (IAH) to Sky Harbor International (PHX) typically departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in January and December, allowing you to maximize your time in Phoenix. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The most popular departure times for flights from Houston (IAH) to Phoenix (PHX) are in the early morning, from 6am to 9am. About 29% of passengers prefer this time window. Many major carriers, including American Airlines, Delta and Frontier, offer flights during this window. This timing works well because it allows you to start your day early and arrive in Phoenix with plenty of time to enjoy your day.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A nonstop flight from IAH to PHX typically takes around 3 hours, covering approximately 1,007 miles. Connecting flights on this route usually add 4 hours 50 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
You can fly first class between IAH and PHX. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines
  • Spirit Airlines

How much is a business class flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A direct, return business class ticket from Houston, TX (IAH) to Phoenix, AZ (PHX) typically costs between $1,237 - $1,997. A non-stop, one-way business class flight is usually around $552 - $719. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phoenix from George Bush Intercontinental (IAH)?
From George Bush Intercontinental (IAH), you can fly into Sky Harbor Intl. (PHX) to reach Phoenix. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Dallas-Fort Worth Intl. (DFW), Portland Intl. (PDX) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$88
Distance
1006 mi
Average flight time
1 hour 9 mins

Book with confidence

Houston to Phoenix Flights

The cheapest times to fly from Houston to Phoenix

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

 

The best time to book a flight from Houston to Phoenix

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

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 Phoenix in 2026. You can also book with separate airlines for your outbound and return journeys, from $44 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 Phoenix 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 Phoenix 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.

 

Houston to Phoenix Flights

*Flight schedules are subject to change.

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*Available to One Key members.