$70 Cheap United flights Phoenix (PHX) to Houston (IAH)

View $70 flight on Tue, Nov 4, 2025Opens in a new window

$70 Cheap United flights Phoenix (PHX) to Houston (IAH)

Prices were available within the past 7 days and start at $70 for one-way flights and $120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 29 - Sat, Nov 1
PHX
Phoenix
IAH
Houston
$120 Roundtrip, found 16 hours ago
$120
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Oct 29 from Phoenix to Houston, returning Sat, Nov 1, priced at $120 found 16 hours ago
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
Popular airline
Frontier Airlines
Distance
1006 mi
Average flight time
5 hours 18 mins

Frequently asked questions

How much is a United Airlines flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
Scoring cheap one-way United Airlines flights from PHX to IAH from $70 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $120 for your next exciting getaway.**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 PHX to IAH with United Airlines?
November is one of the most affordable months to fly to Houston with United Airlines. You could also find fantastic deals on return and one-way fares in February.
What is the cheapest time to book flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) with United Airlines?
Start searching one to three months ahead of your departure date to score cheaper fares on United Airlines flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, 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 Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
United Airlines has direct flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH), with 46 departures each week. Simply select the "Nonstop" and "Airline" filters during your search on Expedia to see all direct United Airlines flights to IAH.
How long does it take to fly from PHX to IAH with United Airlines?
On average, it takes 2h 39m to travel nonstop from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) with United Airlines.
Which day of the week has the most United Airlines flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
United Airlines has the most flights from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH) on Thursday. With up to 7 daily departures, you'll get the most flexibility on this day.
What is the earliest United Airlines flight from PHX to IAH?
Leaving PHX at 6:30AM UTC-7, the earliest United Airlines flight to IAH lands at 10:11AM UTC-6. Flying earlier in the day means you're less likely to encounter delays.* Don't like early starts? The last United Airlines flight from PHX to IAH departs at 5:11PM UTC-7 and touches down at 8:49PM UTC-6.*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?
United Airlines flights from Sky Harbor Intl. Airport (PHX) to Houston touch down at George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU). The primary Houston gateway serviced by this carrier is IAH. It's worth exploring flights arriving at nearby airports on Expedia as there may be lower fares.
Why fly with United Airlines from PHX to IAH?
With a rewarding loyalty program, United Airlines is a favorite of many travelers heading from PHX to IAH. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could 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 Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
You'll likely be onboard an Embraer 175 or a Boeing 737-900 when flying United Airlines from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH). However, keep in mind that a different aircraft may be used depending on operational demands.
Can I change or cancel my United Airlines flight from Sky Harbor Intl. Airport (PHX) to George Bush Intercontinental Airport (IAH)?
It's generally possible to cancel or modify your flight, although there may be additional fees if your booking was made more than 24 hours ago. Want to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you have to alter your plans. To update your itinerary, head to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.