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Cheap flights from Portland to Houston from $85

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 5/24. 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
0 bags

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Find the cheapest flights from Portland to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:35 pm - 9:10 pm
PDX
-
IAH
6h 35m
1 stop
Frontier Logo
9:00 pm - 10:20 am
IAH
-
PDX
15h 20m
1 stop
$258Frontier
Mon, Jun 1 - Wed, Jun 3
Frontier Logo
12:26 pm - 9:13 pm
PDX
-
IAH
6h 47m
1 stop
Frontier Logo
8:53 pm - 6:04 pm
IAH
-
PDX
23h 11m
1 stop
$260Frontier
Thu, Jul 9 - Thu, Jul 16
Frontier Logo
6:19 pm - 8:15 pm
PDX
-
IAH
23h 56m
1 stop
Frontier Logo
6:30 am - 11:41 am
IAH
-
PDX
7h 11m
1 stop
$261Frontier
Fri, Aug 28 - Mon, Aug 31
Frontier Logo
5:46 pm - 10:44 am
PDX
-
IAH
14h 58m
1 stop
Frontier Logo
9:00 pm - 10:20 am
IAH
-
PDX
15h 20m
1 stop
$263Frontier
Tue, May 26 - Thu, May 28
Frontier Logo
12:35 pm - 12:44 am
PDX
-
IAH
10h 09m
1 stop
Frontier Logo
6:30 am - 4:46 pm
IAH
-
PDX
12h 16m
1 stop
$264Frontier
Thu, May 28 - Mon, Jun 1
Frontier Logo
5:31 pm - 3:12 pm
PDX
-
IAH
19h 41m
1 stop
Frontier Logo
5:40 pm - 4:46 pm
IAH
-
PDX
25h 06m
1 stop
$266Frontier
Mon, May 18 - Wed, May 27
Frontier Logo
12:35 pm - 1:44 pm
PDX
-
IAH
23h 09m
1 stop
Frontier Logo
10:05 pm - 4:46 pm
IAH
-
PDX
20h 41m
1 stop
$267Frontier
Mon, May 18 - Wed, May 27
Frontier Logo
12:35 pm - 12:44 am
PDX
-
IAH
10h 09m
1 stop
Frontier Logo
6:30 am - 5:01 pm
IAH
-
PDX
12h 31m
1 stop
$270Frontier
Mon, Jun 1 - Tue, Jun 2
Frontier Logo
12:35 pm - 9:30 pm
PDX
-
IAH
6h 55m
1 stop
Frontier Logo
5:40 pm - 4:46 pm
IAH
-
PDX
25h 06m
1 stop
$271Frontier
Sat, May 30 - Sat, Jun 6
United Airlines Logo
1:02 pm - 7:21 pm
PDX
-
IAH
4h 19mnonstop
United Airlines Logo
4:47 pm - 7:18 pm
IAH
-
PDX
4h 31mnonstop
$273United Airlines
Sat, May 30 - Sat, Jun 6

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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
Jun 1
PDX12:35 pmPortland
6h 35m
1 stop
IAH9:10 pmHouston George Bush Intcntl
Jun 3
IAH9:00 pmHouston George Bush Intcntl
15h 20m
1 stop
PDX10:20 amPortland
$258
Frontier
Jul 9
PDX12:26 pmPortland
6h 47m
1 stop
IAH9:13 pmHouston George Bush Intcntl
Jul 16
IAH8:53 pmHouston George Bush Intcntl
23h 11m
1 stop
PDX6:04 pmPortland
$260
Frontier
Aug 28
PDX6:19 pmPortland
23h 56m
1 stop
IAH8:15 pmHouston George Bush Intcntl
Aug 31
IAH6:30 amHouston George Bush Intcntl
7h 11m
1 stop
PDX11:41 amPortland
$261

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
May 30
PDX5:45 amPortland
5h 47m
1 stop
IAH1:32 pmHouston George Bush Intcntl
Jun 6
IAH5:20 amHouston George Bush Intcntl
12h 36m
2 stops
PDX3:56 pmPortland
$282
Delta
May 26
PDX7:05 amPortland
10h 04m
2 stops
IAH7:09 pmHouston George Bush Intcntl
Jun 2
IAH2:45 pmHouston George Bush Intcntl
10h 59m
2 stops
PDX11:44 pmPortland
$288
Delta
May 25
PDX11:12 pmPortland
9h 27m
1 stop
IAH10:39 amHouston George Bush Intcntl
May 26
IAH2:45 pmHouston George Bush Intcntl
7h 26m
1 stop
PDX8:11 pmPortland
$307

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 May 6, 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

Mon 6/1

12:35 pm-9:10 pm

1 stop6h 35m

Houston George Bush Intcntl

Wed 6/3

9:00 pm-10:20 am

1 stop15h 20m

$258

PortlandHouston

PDX - IAH

PDXIAH

Portland

Thu 7/9

12:26 pm-9:13 pm

1 stop6h 47m

Houston George Bush Intcntl

Thu 7/16

8:53 pm-6:04 pm

1 stop23h 11m

$260

PortlandHouston

PDX - IAH

PDXIAH

Portland

Fri 8/28

6:19 pm-8:15 pm

1 stop23h 56m

Houston George Bush Intcntl

Mon 8/31

6:30 am-11:41 am

1 stop7h 11m

$261

PortlandHouston

PDX - IAH

PDXIAH

Portland

Tue 5/26

5:46 pm-10:44 am

1 stop14h 58m

Houston George Bush Intcntl

Thu 5/28

9:00 pm-10:20 am

1 stop15h 20m

$263

PortlandHouston

PDX - IAH

PDXIAH

Portland

Thu 5/28

12:35 pm-12:44 am

1 stop10h 09m

Houston George Bush Intcntl

Mon 6/1

6:30 am-4:46 pm

1 stop12h 16m

$264

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 5/18

5:31 pm-3:12 pm

1 stop19h 41m

Houston George Bush Intcntl

Wed 5/27

5:40 pm-4:46 pm

1 stop25h 06m

$266

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 5/18

12:35 pm-1:44 pm

1 stop23h 09m

Houston George Bush Intcntl

Wed 5/27

10:05 pm-4:46 pm

1 stop20h 41m

$267

PortlandHouston

PDX - IAH

PDXIAH

Portland

Mon 6/1

12:35 pm-12:44 am

1 stop10h 09m

Houston George Bush Intcntl

Tue 6/2

6:30 am-5:01 pm

1 stop12h 31m

$270

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 5/30

12:35 pm-9:30 pm

1 stop6h 55m

Houston George Bush Intcntl

Sat 6/6

5:40 pm-4:46 pm

1 stop25h 06m

$271
Quickest round-trip

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 5/30

1:02 pm-7:21 pm

Nonstop4h 19m

Houston George Bush Intcntl

Sat 6/6

4:47 pm-7:18 pm

Nonstop4h 31m

$273

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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 $203. 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 $463. 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 $532.

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 $464. Try not to purchase tickets in the evening because they tend to be around $536. 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 $256 on momondo.

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

As of May 2026, prices for Portland to Houston George Bush Intcntl Airport flights are approximately 46% 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

$194

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 $194. The best round-trip flight deal from Portland to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $388.
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
2,837 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $145Free CancellationRating
5.6
2,964 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $179Free CancellationRating
7.9
12,333 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
9,687 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 $179 round-trip, up to an average price of $324. Our users have rated Alaska Airlines at 7.9/10.

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

    Across 9,687 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 $377. 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
Conroe
Humble
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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