$97 Cheap Flights from Portland (PDX) to Houston (IAH)

View $97 flight on Tue, Sep 23, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Portland to Houston (PDX-IAH)

Prices were available within the past 7 days and start at $97 for one-way flights and $174 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Dec 6 - Tue, Dec 9
PDX
Portland
IAH
Houston
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 6 from Portland to Houston, returning Tue, Dec 9, priced at $174 found 1 day ago
Spirit Airlines
Tue, Sep 2 - Fri, Sep 12
PDX
Portland
IAH
Houston
$186 Roundtrip, found 20 hours ago
$186
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Tue, Sep 2 from Portland to Houston, returning Fri, Sep 12, priced at $186 found 20 hours ago
Frontier Airlines
Wed, Sep 10 - Mon, Sep 22
PDX
Portland
IAH
Houston
$188 Roundtrip, found 1 day ago
$188
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Sep 10 from Portland to Houston, returning Mon, Sep 22, priced at $188 found 1 day ago
United
Fri, Sep 26 - Sat, Sep 27
PDX
Portland
IAH
Houston
$192 Roundtrip, found 16 hours ago
$192
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Sep 26 from Portland to Houston, returning Sat, Sep 27, priced at $192 found 16 hours ago
Bargain Flight
Fri, Aug 22 - Wed, Aug 27
PDX
Portland
IAH
Houston
$193 Roundtrip, just found
$193
Roundtrip
just found
Select Bargain Flight flight, departing Fri, Aug 22 from Portland to Houston, returning Wed, Aug 27, priced at $193 just found
Bargain Flight
Sun, Sep 14 - Mon, Sep 22
PDX
Portland
IAH
Houston
$194 Roundtrip, found 1 hour ago
$194
Roundtrip
found 1 hour ago
Select Bargain Flight flight, departing Sun, Sep 14 from Portland to Houston, returning Mon, Sep 22, priced at $194 found 1 hour ago
Spirit Airlines
Wed, Aug 20 - Mon, Aug 25
PDX
Portland
IAH
Houston
$194 Roundtrip, just found
$194
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 20 from Portland to Houston, returning Mon, Aug 25, priced at $194 just found
Bargain Flight
Wed, Aug 13 - Thu, Aug 21
PDX
Portland
IAH
Houston
$196 Roundtrip, found 1 hour ago
$196
Roundtrip
found 1 hour ago
Select Bargain Flight flight, departing Wed, Aug 13 from Portland to Houston, returning Thu, Aug 21, priced at $196 found 1 hour ago
Spirit Airlines
Wed, Aug 13 - Thu, Aug 21
PDX
Portland
IAH
Houston
$196 Roundtrip, found 1 hour ago
$196
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Wed, Aug 13 from Portland to Houston, returning Thu, Aug 21, priced at $196 found 1 hour ago
Hawaiian Airlines
Mon, Aug 25 - Thu, Sep 4
PDX
Portland
IAH
Houston
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Hawaiian Airlines flight, departing Mon, Aug 25 from Portland to Houston, returning Thu, Sep 4, priced at $197 just found

Find the cheapest month to fly from Portland (PDX) to Houston (IAH)

September is typically the cheapest month to fly

From $101 - $195 per traveler.

Graph displaying average flight prices per month

Flights from Portland (PDX) to Houston (IAH)
Origin airport
Portland Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Spirit Airlines, United
Roundtrip price
$174
Distance
1822 mi
Average flight time
6 hours 42 mins

Portland to Houston Flights

The cheapest times to fly from Portland 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 Portland to Houston are during the month of December. You can find some of the cheapest flights from Portland to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Houston

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $97 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 Portland 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 Portland 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 Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH) cost?
Book cheap return flights starting from $192 from Portland Intl. Airport (PDX) 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 United flight leaving PDX on August 2 2025 and touching down at IAH. The price was last updated on July 9 2025 and has not changed since.
What is the cheapest month to fly from PDX to IAH?
The cheapest flights from PDX 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 Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
When flying out of Portland Intl. Airport (PDX), you can jump on a nonstop flight to George Bush Intercontinental Airport (IAH) with United Airlines.
What is the cheapest airline that flies from PDX to IAH?
With prices as low as $118 for a one-way journey from PDX to IAH, Alaska Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PDX on August 29 2025. Prices were last updated on July 9 2025 and have not changed since.
How many flights per day from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
Each day on average, 2 direct flights operate from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH). Choose the departure that works for you.
What are the most popular departure times for flights from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
More passengers fly between PDX and IAH at 11 AM than at any other point in the day. Rather go when it's quieter? Travel outside of rush hours and you're likely to save on your fare as well.
What day of the week has the most flights from PDX to IAH?
Depart on a Friday if you're after the biggest selection of flights from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH).
What is the earliest flight from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
Take the earliest flight at around 7:00AM UTC-8, departing from Portland Intl. Airport (PDX). You'll be flying for roughly 4h 8m, landing at George Bush Intercontinental Airport (IAH) at approximately 1:08PM UTC-6.
How long does it take to fly from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
The average flight duration from PDX to IAH is 4 hours and 11 minutes, covering a total distance of 1,800 mi.
What airline has the least delays from PDX to IAH?
With 89% of flights usually arriving on schedule, United Airlines has the best on-time performance for nonstop flights from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH). To monitor your flight status and get notified about any changes, head to the Expedia App.
What is the best time to fly from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
Choose a flight from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour are on average 22% more likely to be canceled.**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 Portland Intl. Airport (PDX)?
If you've booked a direct flight from Portland Intl. Airport (PDX) to Houston, George Bush Intercontinental Airport (IAH) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH) last-minute?
Last-minute bookings from PDX to IAH are usually more expensive. For the cheapest rates, start looking for flights early. That being said, if your travel plans are flexible, you may land a cheap fare right before your trip.
Is it cheaper to book a PDX to IAH flight and hotel package?
You can save money by securing a PDX to IAH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your ideal flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to George Bush Intercontinental Airport (IAH)?
If you booked your PDX to IAH flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.