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$129+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Portland to Houston are usually found in February or January, 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 February 20, 2025.

Round-trip from

$257
(Delta)

One-way from

$129
(United Airlines)

Popular in

April

Cheapest in

February

Average price

$350
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. 16% potential increase in price ($93 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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.
Tue 3/254:30 pmPWM - IAH
1 stop7h 07mDelta
Tue 4/12:40 pmIAH - PWM
1 stop8h 18mDelta
Deal found 2/19$257
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/254:11 pmPWM - IAH
2 stops8h 46mAmerican Airlines
Tue 4/15:00 amIAH - PWM
2 stops9h 41mAmerican Airlines
Deal found 2/19$267
This Southwest deal was found by Cheapflights users on 2/20. 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 6/111:35 pmPWM - HOU
1 stop6h 00mSouthwest
Mon 6/168:25 pmHOU - PWM
1 stop12h 25mSouthwest
Deal found 2/20$354
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/254:55 pmPWM - IAH
1 stop8h 55mUnited Airlines
Sun 7/276:03 amIAH - PWM
1 stop6h 16mUnited Airlines
Deal found 2/19$363
This American Airlines deal was found by Cheapflights users on 2/20. 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 7/16:30 pmPWM - HOU
1 stop6h 13mAmerican Airlines
Tue 7/810:16 amHOU - PWM
1 stop6h 24mAmerican Airlines
Deal found 2/20$447
This Delta deal was found by Cheapflights users on 2/20. 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.
Tue 7/15:30 amPWM - HOU
2 stops8h 37mDelta
Tue 7/81:00 pmHOU - PWM
2 stops9h 45mDelta
Deal found 2/20$489

Find flights from Portland to Houston within your budget

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 February 20, 2025.

Fly from

Portland

Fly to

Houston

Route

Depart

Return

Price

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 3/25

4:30 pm-10:37 pm

1 stop7h 07m

Houston George Bush Intcntl

Tue 4/1

2:40 pm-11:58 pm

1 stop8h 18m

$257

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 3/25

4:11 pm-11:57 pm

2 stops8h 46m

Houston George Bush Intcntl

Tue 4/1

5:00 am-3:41 pm

2 stops9h 41m

$267

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 6/11

1:35 pm-6:35 pm

1 stop6h 00m

Houston Hobby

Mon 6/16

8:25 pm-9:50 am

1 stop12h 25m

$354

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 7/25

4:55 pm-12:50 am

1 stop8h 55m

Houston George Bush Intcntl

Sun 7/27

6:03 am-1:19 pm

1 stop6h 16m

$363

PortlandHouston

PWM - HOU

PWMHOU

Portland

Tue 7/1

6:30 pm-11:43 pm

1 stop6h 13m

Houston Hobby

Tue 7/8

10:16 am-5:40 pm

1 stop6h 24m

$447

PortlandHouston

PWM - HOU

PWMHOU

Portland

Tue 7/1

5:30 am-1:07 pm

2 stops8h 37m

Houston Hobby

Tue 7/8

1:00 pm-11:45 pm

2 stops9h 45m

$489

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 4/9

6:00 am-1:37 pm

1 stop8h 37m

$129

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 4/9

12:50 pm-10:01 pm

2 stops10h 11m

$134

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 4/9

12:00 pm-6:29 pm

3 stops31h 29m

$154

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 3/20

1:00 pm-9:50 pm

2 stops9h 50m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Portland to Houston

Get recent, data-driven insights about flights from Portland to Houston including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland, Maine to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Houston. Price data was last updated on February 14, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Houston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $334). 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 February 20, 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 September 8, 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.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

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 February 20, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Portland to Houston. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

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

    According to our current data, Delta ($257), American Airlines ($267), and Southwest ($354) offers the cheapest pricing from Portland, Maine to Houston. Delta is 45% 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?

    $129 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $134 and $226, 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, 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 $334). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$163Average$207FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$450FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$261Average$481FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$575FlexibilityNo cancel feeOn-time63%
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