$91 Find Cheap Flights from Phoenix to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Houston departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$108
Overall average: $237
Frontier
Thu 5/14Sat 5/16
PHX - IAH • Non-stop
Cheapest one-way
$91
Typical prices: $116-$188
Frontier
Mon 4/20
PHX - IAH • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Choose Main Cabin Extra on American for early boarding.
Southwest's two free checked bags suit travelers with luggage.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $108 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Frontier and others. Average duration is 2h 32m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 21% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 27% compared to booking last minute.
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Flight Deals

Cheap Flights from Phoenix to Houston (PHX-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Houston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Houston

Thu, May 14 - Sat, May 16
Frontier Logo
5:15 am - 9:54 am
PHX
-
IAH
2h 39mnonstop
Frontier Logo
1:48 pm - 2:52 pm
IAH
-
PHX
3h 04mnonstop
$108Frontier
Sat, Apr 18 - Sat, Apr 25
Frontier Logo
9:52 am - 12:48 am
PHX
-
IAH
12h 56m
1 stop
Frontier Logo
1:48 pm - 2:52 pm
IAH
-
PHX
3h 04mnonstop
$124Frontier
Tue, Apr 28 - Sat, May 2
Frontier Logo
6:50 am - 3:07 pm
PHX
-
IAH
6h 17m
1 stop
Frontier Logo
1:48 pm - 2:52 pm
IAH
-
PHX
3h 04mnonstop
$126Frontier
Fri, May 15 - Mon, May 18
Frontier Logo
9:15 am - 1:56 pm
PHX
-
IAH
2h 41mnonstop
Frontier Logo
12:06 pm - 1:09 pm
IAH
-
PHX
3h 03mnonstop
$127Frontier
Fri, May 1 - Mon, May 4
Frontier Logo
5:05 am - 9:44 am
PHX
-
IAH
2h 39mnonstop
Frontier Logo
3:06 pm - 4:09 pm
IAH
-
PHX
3h 03mnonstop
$128Frontier
Thu, Apr 23 - Sat, Apr 25
Frontier Logo
8:52 am - 12:48 am
PHX
-
IAH
13h 56m
1 stop
Frontier Logo
1:48 pm - 2:52 pm
IAH
-
PHX
3h 04mnonstop
$131Frontier
Sat, Apr 25 - Sun, May 3
Frontier Logo
8:06 am - 12:53 pm
PHX
-
IAH
2h 47mnonstop
Frontier Logo
10:42 am - 11:51 am
IAH
-
PHX
3h 09mnonstop
$132Frontier
Sat, Apr 25 - Sun, May 3
Frontier Logo
8:06 am - 12:53 pm
PHX
-
IAH
2h 47mnonstop
Frontier Logo
10:42 am - 11:51 am
IAH
-
PHX
3h 09mnonstop
$133Frontier
Sat, Apr 25 - Sat, May 2
Southwest Logo
5:20 am - 9:45 am
PHX
-
HOU
2h 25mnonstop
Southwest Logo
6:10 am - 7:00 am
HOU
-
PHX
2h 50mnonstop
$197Southwest
Sat, May 2 - Sun, May 10
Southwest Logo
4:55 pm - 9:20 pm
PHX
-
HOU
2h 25mnonstop
Southwest Logo
6:05 am - 6:55 am
HOU
-
PHX
2h 50mnonstop
$217Southwest
Booking Insights

KAYAK's insights & trends for Phoenix to Houston flights

Get data-powered insights and trends into flights from Phoenix to Houston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Phoenix Sky Harbor Intl Airport to Houston flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Phoenix Sky Harbor Intl Airport to Houston costs $153 on the route between Phoenix Sky Harbor Intl Airport (PHX) and Houston George Bush Intcntl Airport (IAH). Over the past month, this route was, on average, 21% cheaper than other Phoenix Sky Harbor Intl Airport-Houston routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Phoenix to Houston?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Houston clicked on KAYAK for each day over the last 12 months.

When flying from Phoenix to Houston, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Phoenix, you’ll find the best rates on Fridays and the most expensive ones on Tuesdays.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Houston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Houston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Houston is September, where tickets cost $185 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $278 and $267 respectively.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to Houston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Houston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to Houston, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Phoenix to Houston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Yulia Denisyuk

Yulia Denisyuk

Expert on HOU

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Cheapest flight$91
Flight from Phoenix to Houston George Bush Airport

When to book flights from Phoenix to Houston

Are your dates flexible? Find out the best times to travel from Phoenix to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to Houston flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Houston?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Houston was $91 for a one-way ticket and $108 for a round-trip.

  • Do I need a passport to fly between Phoenix and Houston?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Phoenix and on arrival in Houston.

  • Which aircraft models fly most regularly from Phoenix to Houston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phoenix to Houston?

    oneworld, and Star Alliance are the airline alliances operating flights between Phoenix and Houston, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Phoenix to Houston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to Houston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to Houston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to Houston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston with an airline and back to Phoenix with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to Houston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Phoenix to Houston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Phoenix Sky Harbor Intl to Houston.
Find which airlines fly direct from Phoenix Sky Harbor Intl Airport to Houston, which days they fly and book direct flights.

Direct departures

Phoenix Sky Harbor Intl to Houston

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Southwest,United Airlines, +1 more

American Airlines,Southwest, +2 more

Wednesday

American Airlines,Southwest,United Airlines, +1 more

American Airlines,Southwest, +2 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Direct returns

Houston to Phoenix Sky Harbor Intl

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Southwest,United Airlines, +1 more

American Airlines,Southwest, +2 more

Wednesday

American Airlines,Southwest,United Airlines, +1 more

American Airlines,Southwest, +2 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Reviews of the top 4 airlines serving from Phoenix to Houston

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Houston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4318 reviews
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Great flight but super high price. Glad it was a business trip and not personal

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Everything except the food and entertainment. It was a great experience though

Delayed, toilets did not flush, pilot parked to far away from Gate

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

Amazing I love American. I’ll never fly anyone else if I can help it.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

Better service. No food options, but we did get drinks and a cookie.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Liked that it was on time. Staff professional and friendly.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Everything you need to know for your flight from Phoenix to Houston

Information on your arrival and departure airports