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Cheap flights from Portland to Houston from $129

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 7/8. 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
12:34 pm - 12:20 pm
PDX
-
IAH
21h 46m
1 stop
Frontier Logo
10:15 pm - 5:35 pm
IAH
-
PDX
21h 20m
1 stop
$276Frontier
Sun, Oct 25 - Sat, Oct 31
Frontier Logo
3:22 pm - 12:09 am
PDX
-
IAH
6h 47m
1 stop
Frontier Logo
6:50 am - 2:27 pm
IAH
-
PDX
9h 37m
1 stop
$277Frontier
Sat, Sep 26 - Tue, Sep 29
Frontier Logo
3:22 pm - 12:10 pm
PDX
-
IAH
18h 48m
1 stop
Frontier Logo
6:50 am - 2:27 pm
IAH
-
PDX
9h 37m
1 stop
$279Frontier
Tue, Sep 15 - Tue, Sep 22
Frontier Logo
5:16 pm - 10:34 am
PDX
-
IAH
15h 18m
1 stop
Frontier Logo
4:02 pm - 11:35 am
IAH
-
PDX
21h 33m
1 stop
$280Frontier
Tue, Aug 4 - Sat, Aug 8
Frontier Logo
3:47 pm - 12:10 pm
PDX
-
IAH
18h 23m
1 stop
Frontier Logo
10:15 pm - 4:35 pm
IAH
-
PDX
20h 20m
1 stop
$283Frontier
Sun, Nov 1 - Sat, Nov 7
Southwest Logo
12:30 pm - 8:45 pm
PDX
-
HOU
6h 15m
1 stop
Southwest Logo
5:30 pm - 9:55 pm
HOU
-
PDX
6h 25m
1 stop
$357Southwest
Wed, Aug 19 - Wed, Aug 26
Southwest Logo
5:50 am - 4:55 pm
PDX
-
HOU
9h 05m
1 stop
Southwest Logo
11:20 am - 6:15 pm
HOU
-
PDX
8h 55m
2 stops
$362Southwest
Wed, Aug 19 - Wed, Aug 26
Southwest Logo
7:50 am - 5:40 pm
PDX
-
HOU
7h 50m
1 stop
Southwest Logo
6:45 am - 10:50 am
HOU
-
PDX
6h 05m
1 stop
$363Southwest
Tue, Aug 18 - Wed, Sep 2
Allegiant Air Logo
5:42 pm - 3:08 pm
PDX
-
HOU
19h 26m
1 stop
Allegiant Air Logo
3:58 pm - 10:44 am
HOU
-
PDX
20h 46m
1 stop
$368Allegiant Air
Thu, Aug 13 - Mon, Aug 17
Allegiant Air Logo
5:35 pm - 4:02 pm
PDX
-
HOU
20h 27m
1 stop
Allegiant Air Logo
4:52 pm - 10:39 am
HOU
-
PDX
19h 47m
1 stop
$384Allegiant Air
Thu, Jul 23 - Mon, Jul 27

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Southwest flights from Portland to Houston

Our best Southwest deals on Portland to Houston flight tickets
Southwest
Aug 19
PDX12:30 pmPortland
6h 15m
1 stop
HOU8:45 pmHouston Hobby
Aug 26
HOU5:30 pmHouston Hobby
6h 25m
1 stop
PDX9:55 pmPortland
$357
Southwest
Aug 19
PDX5:50 amPortland
9h 05m
1 stop
HOU4:55 pmHouston Hobby
Aug 26
HOU11:20 amHouston Hobby
8h 55m
2 stops
PDX6:15 pmPortland
$362
Southwest
Aug 18
PDX7:50 amPortland
7h 50m
1 stop
HOU5:40 pmHouston Hobby
Sep 2
HOU6:45 amHouston Hobby
6h 05m
1 stop
PDX10:50 amPortland
$363

American Airlines flights from Portland to Houston

Our best American Airlines deals on Portland to Houston flight tickets
American Airlines
Sep 10
PDX2:12 pmPortland
7h 38m
1 stop
HOU11:50 pmHouston Hobby
Sep 12
HOU1:56 pmHouston Hobby
7h 24m
1 stop
PDX7:20 pmPortland
$387
American Airlines
Sep 10
PDX2:12 pmPortland
7h 38m
1 stop
HOU11:50 pmHouston Hobby
Sep 12
HOU1:56 pmHouston Hobby
7h 24m
1 stop
PDX7:20 pmPortland
$397
American Airlines
Sep 9
PDX6:00 amPortland
7h 43m
1 stop
HOU3:43 pmHouston Hobby
Sep 11
HOU1:56 pmHouston Hobby
7h 24m
1 stop
PDX7:20 pmPortland
$427

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Houston 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 17, 2026.
Use the filters below to find and compare flights from Portland to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sun 10/25

12:34 pm-12:20 pm

1 stop21h 46m

Houston George Bush Intcntl

Sat 10/31

10:15 pm-5:35 pm

1 stop21h 20m

$276

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sat 9/26

3:22 pm-12:09 am

1 stop6h 47m

Houston George Bush Intcntl

Tue 9/29

6:50 am-2:27 pm

1 stop9h 37m

$277

PortlandHouston

PDX - IAH

PDXIAH

Portland

Tue 9/15

3:22 pm-12:10 pm

1 stop18h 48m

Houston George Bush Intcntl

Tue 9/22

6:50 am-2:27 pm

1 stop9h 37m

$279

PortlandHouston

PDX - IAH

PDXIAH

Portland

Tue 8/4

5:16 pm-10:34 am

1 stop15h 18m

Houston George Bush Intcntl

Sat 8/8

4:02 pm-11:35 am

1 stop21h 33m

$280

PortlandHouston

PDX - IAH

PDXIAH

Portland

Sun 11/1

3:47 pm-12:10 pm

1 stop18h 23m

Houston George Bush Intcntl

Sat 11/7

10:15 pm-4:35 pm

1 stop20h 20m

$283
Quickest round-trip

PortlandHouston

PDX - HOU

PDXHOU

Portland

Wed 8/19

12:30 pm-8:45 pm

1 stop6h 15m

Houston Hobby

Wed 8/26

5:30 pm-9:55 pm

1 stop6h 25m

$357

PortlandHouston

PDX - HOU

PDXHOU

Portland

Wed 8/19

5:50 am-4:55 pm

1 stop9h 05m

Houston Hobby

Wed 8/26

11:20 am-6:15 pm

2 stops8h 55m

$362

PortlandHouston

PDX - HOU

PDXHOU

Portland

Tue 8/18

7:50 am-5:40 pm

1 stop7h 50m

Houston Hobby

Wed 9/2

6:45 am-10:50 am

1 stop6h 05m

$363

PortlandHouston

PDX - HOU

PDXHOU

Portland

Thu 8/13

5:42 pm-3:08 pm

1 stop19h 26m

Houston Hobby

Mon 8/17

3:58 pm-10:44 am

1 stop20h 46m

$368

PortlandHouston

PDX - HOU

PDXHOU

Portland

Thu 7/23

5:35 pm-4:02 pm

1 stop20h 27m

Houston Hobby

Mon 7/27

4:52 pm-10:39 am

1 stop19h 47m

$384

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

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?

What is the cheapest month to fly to Houston?

The month of August is, on average, the cheapest month to fly to Houston from Portland, with most prices found around $70. The month of October is another great option to travel to Houston, with average flight prices from Portland averaging around $88.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest Portland to Houston flights are usually those with departure times in the morning. Our users have found flights to Houston in the morning for as low as $467. Try not to purchase tickets in the evening because they tend to be around $552. 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 flight route?

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

How far in advance should I book a flight from Portland to Houston?

You are more likely to see cheaper flights to Houston from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $348 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Portland for as low as $281 on momondo.

What cabin class options are available on Portland to Houston flights?

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

Cheap Portland to Houston flight deals and tips

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

Fastest flight time

4h 06m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from Portland to Houston takes 4h 06m
Direct flights go from Portland to Houston every day.
There are 2 airports in Houston. From Portland there are direct flights to Houston George Bush Intcntl (IAH).
Search flight deals

Frequently asked questions about flying from Portland to Houston

  • How far is Portland to Houston by plane?

    There are 1832.8 mi between Portland and Houston. In terms of flight time, this usually takes a little over 4h 06m.

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

    Prices for flights from Portland Airport to Houston refresh daily.

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

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

    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.

  • What documentation or ID do you need to fly to Houston?

    The required travel and health documents for your Houston trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Houston. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland to Houston

Compare and see reviews for airlines that fly from Portland to Houston with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $88Free CancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $144Free CancellationRating
5.6
2,881 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $177Free CancellationRating
7.9
12,528 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,844 reviews
Search United Airlines flights
SouthwestPriceFrom $216Free CancellationRating
7.9
4,235 reviews
Search Southwest flights
DeltaPriceFrom $216Free CancellationRating
7.8
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Houston. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Portland to Houston flights to just show those with flexible booking policies.

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

Once you have performed a search for Portland to Houston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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