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Cheap flights from Portland to Houston from $91

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 9/17. 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
3:47 pm - 12:09 amPDX  Portland-IAH Houston George Bush Intcntl
6h 22m1 stop Denver Intl
Frontier Logo
10:30 pm - 2:52 pmIAH  Houston George Bush Intcntl-PDX Portland
42h 22m2 stops Phoenix Sky Harbor Intl Los Angeles
$332Frontier
Sun, Nov 1 - Tue, Nov 3
Delta Logo
6:20 am - 9:50 pmPDX  Portland-IAH Houston George Bush Intcntl
13h 30m2 stops Los Angeles Salt Lake City
Delta Logo
7:30 am - 5:14 pmIAH  Houston George Bush Intcntl-PDX Portland
11h 44m2 stops Salt Lake City Seattle/Tacoma Intl
$333Delta
Tue, Sep 1 - Sun, Sep 6
Delta Logo
11:55 am - 11:52 pmPDX  Portland-IAH Houston George Bush Intcntl
9h 57m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
Delta Logo
7:30 am - 7:44 pmIAH  Houston George Bush Intcntl-PDX Portland
14h 14m2 stops Salt Lake City Seattle/Tacoma Intl
$333Delta
Sat, Sep 5 - Sun, Sep 6
Delta Logo
5:45 am - 9:36 pmPDX  Portland-IAH Houston George Bush Intcntl
13h 51m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
2:44 pm - 10:35 pmIAH  Houston George Bush Intcntl-PDX Portland
9h 51m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$333Delta
Tue, Sep 1 - Fri, Sep 11
Frontier Logo
12:24 pm - 6:02 amPDX  Portland-IAH Houston George Bush Intcntl
15h 38m1 stop Las Vegas Harry Reid Intl
Frontier Logo
5:20 am - 11:36 amIAH  Houston George Bush Intcntl-PDX Portland
8h 16m1 stop Las Vegas Harry Reid Intl
$334Frontier
Sun, Sep 27 - Sun, Oct 4
Frontier Logo
3:47 pm - 12:10 pmPDX  Portland-IAH Houston George Bush Intcntl
18h 23m1 stop Denver Intl
Frontier Logo
6:30 am - 4:35 pmIAH  Houston George Bush Intcntl-PDX Portland
12h 05m1 stop Denver Intl
$334Frontier
Fri, Oct 30 - Mon, Nov 2
United Airlines Logo
11:59 pm - 6:07 amPDX  Portland-IAH Houston George Bush Intcntl
4h 08mnonstop
United Airlines Logo
7:50 pm - 10:21 pmIAH  Houston George Bush Intcntl-PDX Portland
4h 31mnonstop
$337United Airlines
Sat, Oct 10 - Sat, Oct 17
United Airlines Logo
12:57 pm - 7:10 pmPDX  Portland-IAH Houston George Bush Intcntl
4h 13mnonstop
United Airlines Logo
4:45 pm - 7:16 pmIAH  Houston George Bush Intcntl-PDX Portland
4h 31mnonstop
$337United Airlines
Wed, Oct 7 - Wed, Oct 14
Alaska Airlines Logo
7:00 am - 1:31 pmPDX  Portland-IAH Houston George Bush Intcntl
4h 31mnonstop
Alaska Airlines Logo
6:17 pm - 8:50 pmIAH  Houston George Bush Intcntl-PDX Portland
4h 33mnonstop
$337Alaska Airlines
Wed, Sep 30 - Tue, Oct 6
Alaska Airlines Logo
7:19 am - 1:52 pmPDX  Portland-IAH Houston George Bush Intcntl
4h 33mnonstop
Alaska Airlines Logo
6:17 pm - 8:50 pmIAH  Houston George Bush Intcntl-PDX Portland
4h 33mnonstop
$337Alaska Airlines
Wed, Oct 7 - Wed, Oct 14

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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
Nov 1
PDX3:47 pmPortland
6h 22m
1 stop
IAH12:09 amHouston George Bush Intcntl
Nov 3
IAH10:30 pmHouston George Bush Intcntl
42h 22m
2 stops
PDX2:52 pmPortland
$332
Frontier
Sep 27
PDX12:24 pmPortland
15h 38m
1 stop
IAH6:02 amHouston George Bush Intcntl
Oct 4
IAH5:20 amHouston George Bush Intcntl
8h 16m
1 stop
PDX11:36 amPortland
$334
Frontier
Sep 18
PDX12:38 pmPortland
18h 47m
2 stops
IAH9:25 amHouston George Bush Intcntl
Sep 20
IAH6:25 amHouston George Bush Intcntl
7h 18m
1 stop
PDX11:43 amPortland
$335

Delta flights from Portland to Houston George Bush Intcntl Airport

Our best Delta deals on Portland to Houston George Bush Intcntl Airport flight tickets
Delta
Sep 1
PDX5:45 amPortland
13h 51m
2 stops
IAH9:36 pmHouston George Bush Intcntl
Sep 11
IAH2:44 pmHouston George Bush Intcntl
9h 51m
2 stops
PDX10:35 pmPortland
$333
Delta
Sep 5
PDX9:45 amPortland
12h 07m
2 stops
IAH11:52 pmHouston George Bush Intcntl
Sep 8
IAH2:25 pmHouston George Bush Intcntl
10h 02m
2 stops
PDX10:27 pmPortland
$350
Delta
Oct 1
PDX12:25 amPortland
7h 32m
1 stop
IAH9:57 amHouston George Bush Intcntl
Oct 5
IAH7:06 pmHouston George Bush Intcntl
6h 34m
1 stop
PDX11:40 pmPortland
$355

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 August 13, 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 Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Sun 11/1

3:47 pm-12:09 am

1 stop6h 22m

Houston George Bush Intcntl

Tue 11/3

10:30 pm-2:52 pm

2 stops42h 22m

$332

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Tue 9/1

6:20 am-9:50 pm

2 stops13h 30m

Houston George Bush Intcntl

Sun 9/6

7:30 am-5:14 pm

2 stops11h 44m

$333

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Sat 9/5

11:55 am-11:52 pm

2 stops9h 57m

Houston George Bush Intcntl

Sun 9/6

7:30 am-7:44 pm

2 stops14h 14m

$333

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Tue 9/1

5:45 am-9:36 pm

2 stops13h 51m

Houston George Bush Intcntl

Fri 9/11

2:44 pm-10:35 pm

2 stops9h 51m

$333

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Sun 9/27

12:24 pm-6:02 am

1 stop15h 38m

Houston George Bush Intcntl

Sun 10/4

5:20 am-11:36 am

1 stop8h 16m

$334

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Fri 10/30

3:47 pm-12:10 pm

1 stop18h 23m

Houston George Bush Intcntl

Mon 11/2

6:30 am-4:35 pm

1 stop12h 05m

$334
Quickest round-trip

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Sat 10/10

11:59 pm-6:07 am

Nonstop4h 08m

Houston George Bush Intcntl

Sat 10/17

7:50 pm-10:21 pm

Nonstop4h 31m

$337

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Wed 10/7

12:57 pm-7:10 pm

Nonstop4h 13m

Houston George Bush Intcntl

Wed 10/14

4:45 pm-7:16 pm

Nonstop4h 31m

$337

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Wed 9/30

7:00 am-1:31 pm

Nonstop4h 31m

Houston George Bush Intcntl

Tue 10/6

6:17 pm-8:50 pm

Nonstop4h 33m

$337

PortlandHouston

PDX Portland - IAH Houston George Bush Intcntl

PDXIAH

Portland

Wed 10/7

7:19 am-1:52 pm

Nonstop4h 33m

Houston George Bush Intcntl

Wed 10/14

6:17 pm-8:50 pm

Nonstop4h 33m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently low for flights on this route.

Typical prices usually range from $367 to $557.
The lowest price recently found on this route was $332.

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

The month of October is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Portland, with most prices found around $287. If you are unable to visit Houston George Bush Intcntl Airport during the month of October, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $290.

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 Saturday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Saturday will often find tickets for as low as $472. 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 $547.

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 $467. Try not to purchase tickets in the evening because they tend to be around $570. 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 $376 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 $296 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?

You could potentially save up to 32% on your flight if you consider stops on a Portland to Houston George Bush Intcntl Airport flight.

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

As of August 2026, prices for Portland to Houston George Bush Intcntl Airport flights are approximately 37% 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

$265

Fastest flight time

4h 07m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Portland in the past 72 hours is $265. The best round-trip flight deal from Portland to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $458.
The fastest flight from Portland to Houston George Bush Intcntl Airport takes 4h 07m
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 07m 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
2,817 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $155Free CancellationRating
5.6
2,694 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $195Free CancellationRating
7.9
12,808 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
10,108 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 3 flights/week on average for this route. A good Alaska Airlines flight deal for Portland to Houston George Bush Intcntl Airport starts from $195 round-trip, up to an average price of $338. Our users have rated Alaska Airlines at 7.9/10.

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

    Across 10,113 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Portland to Houston George Bush Intcntl Airport about 4 times each week, with ticket deals ranging from $207 to $400. 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
Montgomery
Spring
Cypress
Jersey Village
Livingston
Tomball

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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