$77 Find Cheap Flights from Portland 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 Portland to Houston departing on 4/15. 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 Portland to Houston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Houston.
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Everything you should know

Cheapest round-trip
$229
Overall average: $360
Multiple Airlines
Sun 4/12Tue 4/14
PDX - IAH • 1 stop
Cheapest non-stop
$237
Typical prices: $289-$487
Alaska Airlines
Sat 4/25Tue 4/28
PDX - IAH • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus adds up to six inches of legroom.
PDX's easy navigation simplifies check-in and security.
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Top airlines
Cheapest • from $230 (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 Alaska Airlines and United Airlines. Average duration is 4h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 45% compared to booking last minute.
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Flight Deals

Cheap Flights from Portland to Houston (PDX-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland 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 Portland to Houston

Sun, Apr 12 - Tue, Apr 14
Multiple Airlines Logo
7:46 pm - 9:54 am
PDX
-
IAH
12h 08m
1 stop
Multiple Airlines Logo
4:02 pm - 11:38 am
IAH
-
PDX
21h 36m
1 stop
$229Multiple Airlines
Fri, Apr 10 - Thu, Apr 16
Frontier Logo
11:58 am - 12:48 am
PDX
-
IAH
10h 50m
1 stop
Frontier Logo
6:45 am - 11:03 am
IAH
-
PDX
6h 18m
1 stop
$230Frontier
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
1:48 pm - 11:11 am
PDX
-
IAH
19h 23m
2 stops
Multiple Airlines Logo
7:45 am - 11:52 am
IAH
-
PDX
30h 07m
1 stop
$231Multiple Airlines
Sat, Apr 18 - Sat, Apr 25
Frontier Logo
12:27 pm - 12:48 am
PDX
-
IAH
10h 21m
1 stop
Frontier Logo
1:48 pm - 11:50 am
IAH
-
PDX
24h 02m
2 stops
$232Frontier
Fri, Apr 10 - Wed, Apr 15
Frontier Logo
11:58 am - 12:48 am
PDX
-
IAH
10h 50m
1 stop
Frontier Logo
3:32 pm - 8:59 am
IAH
-
PDX
19h 27m
2 stops
$234Frontier
Sat, Apr 25 - Tue, Apr 28
Frontier Logo
12:27 pm - 12:48 am
PDX
-
IAH
10h 21m
1 stop
Frontier Logo
6:14 pm - 11:03 am
IAH
-
PDX
42h 49m
2 stops
$235Frontier
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
10:52 am - 5:18 pm
PDX
-
IAH
4h 26mnonstop
Alaska Airlines Logo
6:18 pm - 8:50 pm
IAH
-
PDX
4h 32mnonstop
$237Alaska Airlines
Sat, Apr 11 - Tue, Apr 14
Southwest Logo
11:55 pm - 9:30 am
PDX
-
HOU
7h 35m
1 stop
Southwest Logo
6:00 am - 11:05 am
HOU
-
PDX
7h 05m
1 stop
$237Southwest
Sat, Apr 11 - Sat, Apr 18
Southwest Logo
11:55 pm - 9:30 am
PDX
-
HOU
7h 35m
1 stop
Southwest Logo
8:20 am - 6:45 pm
HOU
-
PDX
12h 25m
2 stops
$248Southwest
Mon, Apr 6 - Wed, Apr 8
Delta Logo
12:30 am - 4:32 pm
PDX
-
HOU
14h 02m
2 stops
Delta Logo
2:13 pm - 10:08 pm
HOU
-
PDX
9h 55m
1 stop
$282Delta
Booking Insights

KAYAK's insights & trends for Portland to Houston flights

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

What is the cheapest Portland to Houston flight route?

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

The cheapest return flight from Portland to Houston costs $237 on the route between Portland (PDX) and Houston George Bush Intcntl Airport (IAH). It is also the most popular route.

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

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

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

What is the cheapest month to fly from Portland to Houston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland 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 Portland to Houston is October, where tickets cost $256 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $437 and $393 respectively.

How far in advance should I book a flight from Portland 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 Portland 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 Portland to Houston, you should book around 5 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Expert advice

Expert advice for your flight from Portland 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 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.

Harriet Baskas

Harriet Baskas

Expert on Alaska 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.

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.

Gabriel Leigh

Gabriel Leigh

Expert on PDX

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know

Cheapest flight$77
Flight from Portland to Houston George Bush Airport

When to book flights from Portland to Houston

Are your dates flexible? Find out the best times to travel from Portland 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 flights from Portland to Houston

  • What is the cheapest flight from Portland to Houston?

    In the last 3 days, the lowest price for a flight from Portland to Houston was $77 for a one-way ticket and $229 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Portland to Houston?

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

  • How does KAYAK find such low prices on flights from Portland 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 Portland to Houston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Portland 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 Portland 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 Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland 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 Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Portland to Houston?

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

Direct departures

Portland to Houston

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Direct returns

Houston to Portland

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Portland to Houston

 
See real verified KAYAK customer reviews for airlines flying from Portland 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 Portland 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 4321 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
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 ?

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.

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

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

Liked the attention and speed when getting wheelchair..........Was assured by phone that my needs would be taken care of and they were with my name.

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Everything was on time and service on the flight was great!

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.

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

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

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

Gate not determined until I got to the airport - hard to plan the trip to the airport.

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

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

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

Information on your arrival and departure airports