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Cheap flights from Portland to Houston from $118

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Houston departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:20 pm - 12:40 am
PDX
-
IAH
10h 20m
1 stop
Frontier Logo
11:35 am - 5:11 pm
IAH
-
PDX
7h 36m
1 stop
$270Frontier
Sat, Aug 29 - Tue, Sep 1
Frontier Logo
12:20 pm - 12:40 am
PDX
-
IAH
10h 20m
1 stop
Frontier Logo
4:02 pm - 11:35 am
IAH
-
PDX
21h 33m
1 stop
$271Frontier
Sat, Aug 15 - Wed, Aug 26
Frontier Logo
5:49 pm - 7:58 pm
PDX
-
IAH
24h 09m
1 stop
Frontier Logo
11:35 am - 5:11 pm
IAH
-
PDX
7h 36m
1 stop
$277Frontier
Mon, Aug 10 - Wed, Aug 19
Frontier Logo
12:20 pm - 12:40 am
PDX
-
IAH
10h 20m
1 stop
Frontier Logo
11:44 am - 5:11 pm
IAH
-
PDX
7h 27m
1 stop
$280Frontier
Sat, Aug 1 - Wed, Aug 19
Frontier Logo
5:49 pm - 7:58 pm
PDX
-
IAH
24h 09m
1 stop
Frontier Logo
6:14 pm - 4:36 pm
IAH
-
PDX
24h 22m
1 stop
$284Frontier
Fri, Aug 7 - Tue, Aug 11
Frontier Logo
12:20 pm - 9:14 pm
PDX
-
IAH
6h 54m
1 stop
Frontier Logo
11:44 am - 5:11 pm
IAH
-
PDX
7h 27m
1 stop
$286Frontier
Mon, Aug 17 - Fri, Aug 21
Frontier Logo
12:20 pm - 12:40 am
PDX
-
IAH
10h 20m
1 stop
Frontier Logo
6:30 am - 4:51 pm
IAH
-
PDX
12h 21m
1 stop
$287Frontier
Sat, Aug 8 - Mon, Aug 10
Frontier Logo
5:49 pm - 7:58 pm
PDX
-
IAH
24h 09m
1 stop
Frontier Logo
4:02 pm - 11:35 am
IAH
-
PDX
21h 33m
1 stop
$289Frontier
Mon, Aug 3 - Wed, Aug 12
Frontier Logo
5:16 pm - 10:34 am
PDX
-
IAH
15h 18m
1 stop
Frontier Logo
6:14 pm - 4:36 pm
IAH
-
PDX
24h 22m
1 stop
$290Frontier
Tue, Jul 21 - Tue, Jul 28
Frontier Logo
12:20 pm - 12:40 am
PDX
-
IAH
10h 20m
1 stop
Frontier Logo
6:30 am - 5:11 pm
IAH
-
PDX
12h 41m
1 stop
$291Frontier
Mon, Aug 17 - Sun, Aug 23

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Frontier flights from Portland to Houston George Bush Intcntl Airport

Our best Frontier deals on Portland to Houston George Bush Intcntl Airport flight tickets
Frontier
Aug 29
PDX12:20 pmPortland
10h 20m
1 stop
IAH12:40 amHouston George Bush Intcntl
Sep 1
IAH11:35 amHouston George Bush Intcntl
7h 36m
1 stop
PDX5:11 pmPortland
$270
Frontier
Aug 10
PDX5:49 pmPortland
24h 09m
1 stop
IAH7:58 pmHouston George Bush Intcntl
Aug 19
IAH11:35 amHouston George Bush Intcntl
7h 36m
1 stop
PDX5:11 pmPortland
$277
Frontier
Aug 1
PDX12:20 pmPortland
10h 20m
1 stop
IAH12:40 amHouston George Bush Intcntl
Aug 19
IAH11:44 amHouston George Bush Intcntl
7h 27m
1 stop
PDX5:11 pmPortland
$280

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Houston George Bush Intcntl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from Portland to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 8/29

12:20 pm-12:40 am

1 stop10h 20m

Houston George Bush Intcntl

Tue 9/1

11:35 am-5:11 pm

1 stop7h 36m

$270

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 8/15

12:20 pm-12:40 am

1 stop10h 20m

Houston George Bush Intcntl

Wed 8/26

4:02 pm-11:35 am

1 stop21h 33m

$271

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 8/10

5:49 pm-7:58 pm

1 stop24h 09m

Houston George Bush Intcntl

Wed 8/19

11:35 am-5:11 pm

1 stop7h 36m

$277

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 8/1

12:20 pm-12:40 am

1 stop10h 20m

Houston George Bush Intcntl

Wed 8/19

11:44 am-5:11 pm

1 stop7h 27m

$280

PortlandHouston

PDX - IAH

PDXIAH

Portland

Fri 8/7

5:49 pm-7:58 pm

1 stop24h 09m

Houston George Bush Intcntl

Tue 8/11

6:14 pm-4:36 pm

1 stop24h 22m

$284
Quickest round-trip

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 8/17

12:20 pm-9:14 pm

1 stop6h 54m

Houston George Bush Intcntl

Fri 8/21

11:44 am-5:11 pm

1 stop7h 27m

$286

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 8/8

12:20 pm-12:40 am

1 stop10h 20m

Houston George Bush Intcntl

Mon 8/10

6:30 am-4:51 pm

1 stop12h 21m

$287

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 8/3

5:49 pm-7:58 pm

1 stop24h 09m

Houston George Bush Intcntl

Wed 8/12

4:02 pm-11:35 am

1 stop21h 33m

$289

PortlandHouston

PDX - IAH

PDXIAH

Portland

Tue 7/21

5:16 pm-10:34 am

1 stop15h 18m

Houston George Bush Intcntl

Tue 7/28

6:14 pm-4:36 pm

1 stop24h 22m

$290

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 8/17

12:20 pm-12:40 am

1 stop10h 20m

Houston George Bush Intcntl

Sun 8/23

6:30 am-5:11 pm

1 stop12h 41m

$291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Portland to Houston George Bush Intcntl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Houston George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of September is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Portland, with most prices found around $209. If you are unable to visit Houston George Bush Intcntl Airport during the month of September, then departing from Portland during the month October is also very affordable. Most momondo users find prices during this month for around $278.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Portland to Houston George Bush Intcntl Airport is on a Friday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Friday will often find tickets for as low as $453. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $531.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Portland to Houston George Bush Intcntl Airport flights are usually those with departure times at noon. Our users have found flights to Houston George Bush Intcntl Airport at noon for as low as $465. Try not to purchase tickets in the evening because they tend to be around $547. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to Houston George Bush Intcntl flight route?

Fly from Portland to Houston George Bush Intcntl for the best Portland - Houston George Bush Intcntl flight prices

How far in advance should I book a flight from Portland to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $341 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Portland for as low as $293 on momondo.

What cabin class options are available on Portland to Houston George Bush Intcntl Airport flights?

There are 4 cabin classes available to choose from on Portland to Houston George Bush Intcntl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Houston George Bush Intcntl Airport flights?

No. A direct flight is the cheapest option for a flight between Portland to Houston George Bush Intcntl Airport.

How have Portland to Houston George Bush Intcntl Airport flight prices changed over time?

As of June 2026, prices for Portland to Houston George Bush Intcntl Airport flights are approximately 73% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Houston George Bush Intcntl Airport (PDX to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Houston George Bush Intcntl Airport

Best Price Found

$225

Fastest flight time

4h 06m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Portland in the past 72 hours is $225. The best round-trip flight deal from Portland to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $447.
The fastest flight from Portland to Houston George Bush Intcntl Airport takes 4h 06m
Direct flights go from Portland to Houston George Bush Intcntl Airport every day.
Search flight deals

Frequently asked questions about flying from Portland to Houston George Bush Intcntl Airport

  • How far is Portland to Houston George Bush Intcntl by plane?

    Houston George Bush Intcntl is 1822.9 mi away from Portland. 4h 06m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Portland Airport to Houston George Bush Intcntl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from Portland Airport to Houston George Bush Intcntl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents you'll need for your trip to Houston George Bush Intcntl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston George Bush Intcntl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to Houston George Bush Intcntl Airport?

  • What is the most popular airline from Portland to Houston George Bush Intcntl Airport?

Best airlines flying from Portland to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Portland to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $88Free CancellationRating
7.8
2,826 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $145Free CancellationRating
5.6
2,862 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $177Free CancellationRating
7.9
12,582 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
9,896 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Portland to Houston George Bush Intcntl Airport

    Alaska Airlines is one of the most popular airlines flying from Portland to Houston George Bush Intcntl Airport, operating 6 flights/week on average for this route. A good Alaska Airlines flight deal for Portland to Houston George Bush Intcntl Airport starts from $177 round-trip, up to an average price of $317. Our users have rated Alaska Airlines at 7.9/10.

  • United Airlines Flights From Portland to Houston George Bush Intcntl Airport

    Across 9,896 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Portland to Houston George Bush Intcntl Airport about 18 times each week, with ticket deals ranging from $207 to $386. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Humble
Conroe
Spring
Cypress
Montgomery
Jersey Village
Tomball
Livingston

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Houston?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Houston. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Houston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Houston from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Houston?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Houston from Portland.

I’m not ready to book a flight from Portland to Houston right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Houston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Houston and let you know when they change.

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