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$144+ Cheap flights from Portland, ME (PWM) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Houston are usually found in July or September, booked 47 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 29, 2025.

Round-trip from

$275
(Kiwi.com)

One-way from

$144
(American Airlines)

Popular in

December

Cheapest in

July

Average price

$256
From Portland to Houston
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One-way flight from Portland to Houston
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Highest demand for flights based on searches. 13% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Houston

Cheapest flights from Portland to Houston
Explore the most affordable flight options available from Portland to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:18 pmPWM - IAH
1 stop17h 28mMultiple Airlines
Fri 11/145:28 pmIAH - PWM
1 stop16h 13mMultiple Airlines
Deal found 9/27$275
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:18 pmPWM - IAH
1 stop21h 18mMultiple Airlines
Thu 11/208:35 pmIAH - PWM
1 stop11h 31mMultiple Airlines
Deal found 9/27$286
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:28 pmPWM - IAH
1 stop9h 15mAmerican Airlines
Tue 11/41:15 pmIAH - PWM
1 stop8h 39mAmerican Airlines
Deal found 9/28$287
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:45 amPWM - HOU
1 stop8h 10mSouthwest
Tue 11/46:00 amHOU - PWM
1 stop5h 10mSouthwest
Deal found 9/28$287
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:05 pmPWM - IAH
2 stops17h 32mMultiple Airlines
Sun 12/146:42 pmIAH - PWM
1 stop13h 24mMultiple Airlines
Deal found 9/28$290
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:18 pmPWM - IAH
1 stop21h 18mMultiple Airlines
Tue 11/1810:28 amIAH - PWM
1 stop23h 08mMultiple Airlines
Deal found 9/27$295
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:18 pmPWM - IAH
1 stop17h 28mMultiple Airlines
Tue 11/1810:28 amIAH - PWM
1 stop23h 08mMultiple Airlines
Deal found 9/27$296
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/282:10 pmPWM - HOU
2 stops9h 04mAmerican Airlines
Tue 11/412:15 pmHOU - PWM
2 stops9h 39mAmerican Airlines
Deal found 9/28$297
This American Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:21 pmPWM - IAH
1 stop6h 34mAmerican Airlines
Thu 11/133:00 pmIAH - PWM
1 stop6h 33mAmerican Airlines
Deal found 9/27$298
This Southwest deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:30 pmPWM - HOU
1 stop6h 05mSouthwest
Mon 11/176:00 amHOU - PWM
1 stop5h 10mSouthwest
Deal found 9/27$298
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:15 pmPWM - IAH
2 stops27h 11mMultiple Airlines
Fri 11/145:28 pmIAH - PWM
1 stop16h 13mMultiple Airlines
Deal found 9/27$304
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:00 amPWM - HOU
1 stop8h 28mDelta
Wed 11/192:32 pmHOU - PWM
1 stop6h 47mDelta
Deal found 9/27$309

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from Portland to Houston that are best for you.

Fly from

Portland

Fly to

Houston

Route

Depart

Return

Price

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 10/28

3:28 pm-11:43 pm

1 stop9h 15m

Houston George Bush Intcntl

Tue 11/4

1:15 pm-10:54 pm

1 stop8h 39m

$287

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 11/12

3:30 pm-8:35 pm

1 stop6h 05m

Houston Hobby

Mon 11/17

6:00 am-12:10 pm

1 stop5h 10m

$298

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 11/11

6:00 am-11:30 am

1 stop6h 30m

Houston George Bush Intcntl

Mon 11/17

5:15 am-12:30 pm

1 stop6h 15m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 11/13

3:20 pm-11:59 pm

1 stop9h 39m

Houston George Bush Intcntl

Thu 11/20

7:20 am-2:12 pm

1 stop5h 52m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 11/11

1:25 pm-9:11 pm

1 stop8h 46m

Houston George Bush Intcntl

Tue 11/18

3:19 pm-11:19 pm

1 stop7h 00m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 10/24

5:45 am-10:51 am

1 stop6h 06m

Houston George Bush Intcntl

Mon 10/27

5:00 am-2:12 pm

1 stop8h 12m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 11/10

4:53 pm-10:24 pm

1 stop6h 31m

Houston George Bush Intcntl

Sat 11/15

5:15 am-12:30 pm

1 stop6h 15m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 11/20

4:53 pm-10:24 pm

1 stop6h 31m

Houston George Bush Intcntl

Thu 11/27

5:30 am-12:08 pm

1 stop5h 38m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 11/10

4:53 pm-10:24 pm

1 stop6h 31m

Houston George Bush Intcntl

Wed 11/19

5:30 am-12:08 pm

1 stop5h 38m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 11/13

6:00 am-11:30 am

1 stop6h 30m

Houston George Bush Intcntl

Tue 11/18

5:30 am-12:08 pm

1 stop5h 38m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 31 results
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Best time to book a flight from Portland to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Houston

What is the cheapest month to book a flight from Portland, Maine to Houston?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $230). Flying from Portland, Maine to Houston in March is currently the most expensive (average of $330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to HOU?

Find hourly flight availability from Portland to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 35% on flights from Portland, Maine to Houston by exploring options for tickets in the evening.

What is the cheapest day to fly from Portland, Maine to Houston?

Use this chart to determine the cheapest time to fly round-trip from Portland to Houston. Price data was last updated on October 6, 2024.

Travelers seeking maximum savings on their Portland, Maine to Houston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland, Maine to Houston?

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated September 29, 2025.
Read through reviews of airlines operating flights from Portland to Houston, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,964 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,157 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Portland to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Houston?

    Most people fly from Portland (PWM) if they book a flight from Portland to Houston. On average, Portland has 0 outbound flights to Houston per day from 5 airlines. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Houston?

    Airlines like American Airlines, Southwest, and Delta fly from Portland, Maine to Houston in about 6h 05m. The time it takes to get you to your destination can typically vary by up to 3h 10m. There are 1677 mi between Portland, Maine and Houston. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland, Maine to Houston round-trip?

    According to our current data, Delta ($185), American Airlines ($189), and Frontier ($218) offers the cheapest pricing from Portland, Maine to Houston. Delta is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Portland to Houston that include hotel bookings?

    Yes. In addition to deals on Portland to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Houston.

  • Can I find deals for business class flights from Portland to Houston?

    Yes. Cheapflights offers flight deals from Portland to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Houston?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $230). Flying from Portland, Maine to Houston in March is currently the most expensive (average of $330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Portland to Houston

Discover the top 5 airlines that operate flights from Portland to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$185Average$355FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$189Average$380FlexibilityNo cancel feeOn-time71%
FrontierCheapest$218Average$218FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$247Average$454FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$276Average$567FlexibilityNo cancel feeOn-time63%

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