$49 Cheap Flights from Phoenix (PHX) to Houston (IAH)

View $49 flight on Sat, Sep 6, 2025Opens in a new window

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

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Cheap Flights from Phoenix to Houston (PHX-IAH)

Prices were available within the past 7 days and start at $49 for one-way flights and $89 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Oct 25 - Sat, Nov 8
PHX
Phoenix
IAH
Houston
$89 Roundtrip, found 2 hours ago
$89
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Phoenix to Houston, returning Sat, Nov 8, priced at $89 found 2 hours ago
Frontier Airlines
Sat, Sep 6 - Sat, Sep 13
PHX
Phoenix
IAH
Houston
$97 Roundtrip, found 1 hour ago
$97
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Sep 6 from Phoenix to Houston, returning Sat, Sep 13, priced at $97 found 1 hour ago
Frontier Airlines
Mon, Oct 27 - Thu, Nov 6
PHX
Phoenix
IAH
Houston
$99 Roundtrip, found 1 day ago
$99
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Oct 27 from Phoenix to Houston, returning Thu, Nov 6, priced at $99 found 1 day ago
Frontier Airlines
Fri, Oct 31 - Mon, Nov 3
PHX
Phoenix
IAH
Houston
$104 Roundtrip, found 17 hours ago
$104
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Phoenix to Houston, returning Mon, Nov 3, priced at $104 found 17 hours ago
Frontier Airlines
Thu, Sep 18 - Sat, Sep 20
PHX
Phoenix
IAH
Houston
$106 Roundtrip, just found
$106
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 18 from Phoenix to Houston, returning Sat, Sep 20, priced at $106 just found
Frontier Airlines
Sat, Sep 6 - Sun, Sep 7
PHX
Phoenix
IAH
Houston
$109 Roundtrip, just found
$109
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 6 from Phoenix to Houston, returning Sun, Sep 7, priced at $109 just found
United
Wed, Oct 1 - Sat, Oct 4
PHX
Phoenix
IAH
Houston
$135 Roundtrip, found 4 hours ago
$135
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 1 from Phoenix to Houston, returning Sat, Oct 4, priced at $135 found 4 hours ago
Spirit Airlines
Mon, Sep 8 - Thu, Sep 11
PHX
Phoenix
IAH
Houston
$161 Roundtrip, found 1 hour ago
$161
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Sep 8 from Phoenix to Houston, returning Thu, Sep 11, priced at $161 found 1 hour ago
Delta
Thu, Sep 4 - Fri, Sep 5
PHX
Phoenix
IAH
Houston
$211 Roundtrip, found 1 hour ago
$211
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Sep 4 from Phoenix to Houston, returning Fri, Sep 5, priced at $211 found 1 hour ago
Alaska Airlines
Tue, Aug 26 - Tue, Sep 2
PHX
Phoenix
IAH
Houston
$477 Roundtrip, found 12 hours ago
$477
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Tue, Aug 26 from Phoenix to Houston, returning Tue, Sep 2, priced at $477 found 12 hours ago

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

April is typically the cheapest month to fly

From $49 - $427 per traveler.

Graph displaying average flight prices per month

Alternative airports near Houston

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

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $219
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $219
Flights from Phoenix (PHX) to Houston (IAH)
Origin airport
Sky Harbor Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$83
Distance
1006 mi
Average flight time
5 hours 16 mins

Phoenix to Houston Flights

The cheapest times to fly from Phoenix to Houston

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

 

The best time to book a flight from Phoenix to Houston

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

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 Phoenix to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $49 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 Phoenix to Houston 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 Phoenix to Houston 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.

 

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) cost?
Pick up cheap return fares starting from $99 from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving PHX on August 15 2025 and touching down at IAH. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from PHX to IAH?
The cheapest flights from PHX to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
Select from 3 airlines that fly directly from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH). These include:

  • United Airlines
  • American Airlines
  • Frontier Airlines

What is the cheapest airline that flies from PHX to IAH?
Currently, the cheapest airline offering one-way flights from PHX to IAH is Frontier Airlines. You can jet off on this route from $55. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHX on September 20 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
When taking off from Sky Harbor Intl. Airport (PHX), you can pick from an average of 9 daily direct flights to George Bush Intercontinental Airport (IAH).
What are the most popular departure times for flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
The 9 AM departures from PHX to IAH are typically the busiest. These flights can come with a higher price due to their popularity. If you want to save money, book during off-peak hours.
What day of the week has the most flights from PHX to IAH?
If you travel on a Thursday, you'll get the largest range of choices for flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH).
What is the earliest flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
Sky Harbor Intl. Airport (PHX)'s earliest flight to George Bush Intercontinental Airport (IAH) departs at approximately 6:30AM UTC-7. With a travel duration of 2h 41m, you'll land at around 10:11AM UTC-6.
How long does it take to fly from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
It takes approximately 2 hours and 40 minutes to travel the 1,000 mi from PHX to IAH.
What airline has the least delays from PHX to IAH?
Consider booking with American Airlines if you'd like to go straight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) without any holdups. This carrier has the best track record for punctuality, with an on-time performance of 80%. Want to get notified of any changes? You can check your flight status using the Expedia App.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
Select a flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from Sky Harbor Intl. Airport (PHX)?
You can touch down at George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU) when traveling to Houston on a direct flight from Sky Harbor Intl. Airport (PHX).
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) last-minute?
Holding off until just before your trip to book a ticket from PHX to IAH generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for a better chance of getting a bargain.
Is it cheaper to book a PHX to IAH flight and hotel package?
Compared with arranging flights and hotels separately, booking a PHX to IAH flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of travel planning. Simply secure your flights and select from our extensive range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
It's generally possible to reschedule or cancel your PHX to IAH flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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