$33 Cheap Flights from Houston (IAH) to Phoenix (PHX)

You can find cheap one-way flights from $33 and cheap return flights from $66 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.

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.

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

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.

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.

You can fly first class between IAH and PHX. First class cabins are available on:

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

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.

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.