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$127+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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

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 November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/106:18 pmPWM - IAH
1 stop18h 27mMultiple Airlines
Tue 12/168:07 pmIAH - PWM
1 stop13h 29mMultiple Airlines
Deal found 11/12$232
This Delta deal was found by Cheapflights users on 11/10. 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.
Wed 12/1012:53 pmPWM - IAH
1 stop6h 26mDelta
Wed 12/171:36 pmIAH - PWM
1 stop7h 47mDelta
Deal found 11/10$251
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 12/106:18 pmPWM - IAH
1 stop18h 27mMultiple Airlines
Sun 12/148:07 pmIAH - PWM
1 stop11h 59mMultiple Airlines
Deal found 11/13$253
This Delta deal was found by Cheapflights users on 11/13. 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.
Wed 12/104:53 pmPWM - IAH
1 stop6h 30mDelta
Sun 12/145:20 amIAH - PWM
1 stop5h 53mDelta
Deal found 11/13$255
This Delta deal was found by Cheapflights users on 11/12. 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.
Wed 12/106:15 amPWM - IAH
2 stops12h 32mDelta
Tue 12/163:19 pmIAH - PWM
1 stop7h 02mDelta
Deal found 11/12$256
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 stops20h 56mMultiple Airlines
Sun 12/148:07 pmIAH - PWM
1 stop11h 59mMultiple Airlines
Deal found 11/11$258
This Delta deal was found by Cheapflights users on 11/10. 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.
Wed 12/34:53 pmPWM - IAH
1 stop6h 30mDelta
Sun 12/75:20 amIAH - PWM
1 stop5h 53mDelta
Deal found 11/10$275
This Delta deal was found by Cheapflights users on 11/10. 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.
Wed 12/106:08 amPWM - HOU
1 stop8h 20mDelta
Wed 12/172:32 pmHOU - PWM
1 stop6h 51mDelta
Deal found 11/10$275
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Mon 12/85:17 pmPWM - IAH
1 stop6h 46mAmerican Airlines
Sat 12/1310:43 amIAH - PWM
2 stops9h 59mAmerican Airlines
Deal found 11/11$280
This American Airlines deal was found by Cheapflights users on 11/12. 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.
Mon 12/85:46 amPWM - HOU
2 stops11h 07mAmerican Airlines
Sat 12/1310:08 amHOU - PWM
2 stops10h 34mAmerican Airlines
Deal found 11/12$309
This Southwest deal was found by Cheapflights users on 11/10. 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 12/33:30 pmPWM - HOU
1 stop6h 05mSouthwest
Sun 12/75:20 amHOU - PWM
1 stop8h 05mSouthwest
Deal found 11/10$325
This Southwest deal was found by Cheapflights users on 11/12. 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.
Thu 12/43:30 pmPWM - HOU
1 stop6h 05mSouthwest
Mon 12/83:45 pmHOU - PWM
1 stop5h 30mSouthwest
Deal found 11/12$366

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 November 13, 2025.

Round-trip from

$232
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$365
From Portland to Houston
Search Deals
One-way flight from Portland to Houston
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 November 13, 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 12/16

3:00 pm-8:31 pm

1 stop6h 31m

Houston George Bush Intcntl

Tue 1/13

5:00 am-2:39 pm

1 stop8h 39m

$251

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/17

6:08 am-12:31 pm

1 stop7h 23m

Houston George Bush Intcntl

Tue 1/13

5:15 am-12:03 pm

1 stop5h 48m

$251

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/10

6:18 pm-11:45 am

1 stop18h 27m

Houston George Bush Intcntl

Sun 12/14

8:07 pm-9:06 am

1 stop11h 59m

$253

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 2/26

5:07 pm-10:47 pm

1 stop6h 40m

Houston George Bush Intcntl

Tue 3/3

5:23 pm-11:49 pm

1 stop5h 26m

$255

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/10

4:53 pm-10:23 pm

1 stop6h 30m

Houston George Bush Intcntl

Sun 12/14

5:20 am-12:13 pm

1 stop5h 53m

$255

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/10

12:53 pm-6:19 pm

1 stop6h 26m

Houston George Bush Intcntl

Wed 12/17

12:40 pm-11:21 pm

2 stops9h 41m

$256

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/10

6:15 am-5:47 pm

2 stops12h 32m

Houston George Bush Intcntl

Tue 12/16

3:19 pm-11:21 pm

1 stop7h 02m

$256

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 12/16

4:53 pm-10:23 pm

1 stop6h 30m

Houston George Bush Intcntl

Tue 1/13

3:03 pm-12:20 am

2 stops8h 17m

$256

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 12/12

6:05 pm-2:01 pm

2 stops20h 56m

Houston George Bush Intcntl

Sun 12/14

8:07 pm-9:06 am

1 stop11h 59m

$258

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 5/2

6:00 am-12:16 pm

1 stop7h 16m

Houston George Bush Intcntl

Tue 5/5

5:25 am-11:55 am

1 stop5h 30m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

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, February is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $130). Flying from Portland, Maine to Houston in October is currently the most expensive (average of $217). 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 November 13, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 26% 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 December 16, 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. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 13, 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
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
9,017 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
11,051 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
3,109 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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 Delta, United Airlines, and American Airlines fly from Portland, Maine to Houston in about 6h 26m. The time it takes to get you to your destination can typically vary by up to 14m. There are 1664 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.

  • What are the cheapest airlines to fly from Portland, Maine to Houston one-way?

    $130 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $155 and $180, respectively.

  • 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, February is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $130). Flying from Portland, Maine to Houston in October is currently the most expensive (average of $217). 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$185Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$189Average$348FlexibilityNo cancel feeOn-time71%
FrontierCheapest$218Average$218FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$261Average$451FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$322Average$575FlexibilityNo cancel feeOn-time63%

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