
Book Cheap United flight from Houston (IAH) to Phoenix (PHX) from CA $321
Find The Best Day to Book a Cheap United Flights From Houston to Phoenix
Cheapest United Flights from Houston (IAH) to Phoenix (PHX)
The cheapest flights to Sky Harbor Intl. found within the past 7 days were round trip and CA $321 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great United flight from IAH to PHX
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United Houston to Phoenix gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between Houston and Phoenix
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Houston to Phoenix with United are December.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Phoenix

SureStay Hotel by Best Western Phoenix Airport
Clean room, friendly staff.
Reviewed on Nov 8, 2025

Crowne Plaza Phoenix Airport - PHX by IHG
Great breakfast!
Reviewed on Nov 8, 2025

Hilton Garden Inn Phoenix Airport North
Clean room. Good breakfast. Friendly and courteous waitress for breakfast.
Reviewed on Nov 4, 2025
Want more than a(n) United Flight from Houston to Phoenix?
Popular United Flight Routes from IAH
Top United Flight Routes from PHX
Domestic
- Toronto to Delhi (YYZ - DEL)
- Toronto to Manila (YYZ - MNL)
- Toronto to Kuala Lumpur (YYZ - KUL)
- Regina to Lagos (YQR - LOS)
- Vancouver to Ixtapa (YVR - ZIH)
- Seattle to Las Vegas (SEA - LAS)
- Vancouver to Manila (YVR - MNL)
- Toronto to Istanbul (YYZ - IST)
- Toronto to Tokyo (YYZ - HND)
- Toronto to Liberia (YYZ - LIR)
International
- Vancouver to Tokyo (YVR - NRT)
- Vancouver to Delhi (YVR - DEL)
- Toronto to Fort Lauderdale (YYZ - FLL)
- Vancouver to Ixtapa (YVR - ZIH)
- Ottawa to Kailua-Kona (YOW - KOA)
- Toronto to Liberia (YYZ - LIR)
- Toronto to Istanbul (YYZ - IST)
- Vancouver to Manila (YVR - MNL)
- Seattle to Delhi (SEA - DEL)
- Toronto to Manila (YYZ - MNL)
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