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$100+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: 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 March 28, 2025.

Round-trip from

$199
(American Airlines)

One-way from

$100
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$487
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. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. 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 7/14:00 pmPWM - IAH
1 stop7h 02mAmerican Airlines
Tue 7/86:00 amIAH - PWM
1 stop6h 44mAmerican Airlines
Deal found 3/27$199
This Southwest deal was found by Cheapflights users on 3/26. 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.
Mon 9/153:20 pmPWM - HOU
1 stop8h 35mSouthwest
Sun 9/217:50 amHOU - PWM
1 stop10h 20mSouthwest
Deal found 3/26$204
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Wed 7/233:04 pmPWM - IAH
1 stop9h 26mUnited Airlines
Wed 7/306:03 amIAH - PWM
1 stop6h 15mUnited Airlines
Deal found 3/26$257
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/167:29 pmPWM - IAH
1 stop17h 30mFrontier
Fri 4/189:14 pmIAH - PWM
1 stop10h 58mFrontier
Deal found 3/27$280
This Delta deal was found by Cheapflights users on 3/27. 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.
Mon 4/284:40 pmPWM - IAH
2 stops8h 16mDelta
Wed 4/302:51 pmIAH - PWM
1 stop8h 08mDelta
Deal found 3/27$282
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 4/232:33 pmPWM - HOU
2 stops9h 07mAmerican Airlines
Wed 4/305:00 amHOU - PWM
2 stops9h 18mAmerican Airlines
Deal found 3/25$283
This Trip.com deal was found by Cheapflights users on 3/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1210:12 amPWM - IAH
2 stops22h 44mMultiple Airlines
Thu 4/1711:48 amIAH - PWM
1 stop28h 15mMultiple Airlines
Deal found 3/25$354
This Delta deal was found by Cheapflights users on 3/25. 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 4/231:52 pmPWM - HOU
2 stops10h 16mDelta
Wed 4/302:45 pmHOU - PWM
1 stop8h 14mDelta
Deal found 3/25$378

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 March 28, 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 7/1

4:00 pm-10:02 pm

1 stop7h 02m

Houston George Bush Intcntl

Tue 7/8

6:00 am-1:44 pm

1 stop6h 44m

$199

PortlandHouston

PWM - HOU

PWMHOU

Portland

Mon 9/15

3:20 pm-10:55 pm

1 stop8h 35m

Houston Hobby

Sun 9/21

7:50 am-7:10 pm

1 stop10h 20m

$204

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 7/23

3:04 pm-11:30 pm

1 stop9h 26m

Houston George Bush Intcntl

Wed 7/30

6:03 am-1:18 pm

1 stop6h 15m

$257

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 4/16

7:29 pm-11:59 am

1 stop17h 30m

Houston George Bush Intcntl

Fri 4/18

9:14 pm-9:12 am

1 stop10h 58m

$280

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 4/28

4:40 pm-11:56 pm

2 stops8h 16m

Houston George Bush Intcntl

Wed 4/30

2:51 pm-11:59 pm

1 stop8h 08m

$282

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 4/23

2:33 pm-10:40 pm

2 stops9h 07m

Houston Hobby

Wed 4/30

5:00 am-3:18 pm

2 stops9h 18m

$283

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 4/12

10:12 am-7:56 am

2 stops22h 44m

Houston George Bush Intcntl

Thu 4/17

11:48 am-5:03 pm

1 stop28h 15m

$354

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 4/23

1:52 pm-11:08 pm

2 stops10h 16m

Houston Hobby

Wed 4/30

2:45 pm-11:59 pm

1 stop8h 14m

$378

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 6/18

6:01 pm-11:59 pm

1 stop6h 58m

$100

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 6/18

6:33 pm-11:48 pm

1 stop6h 15m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 16 results
1
2

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

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 March 21, 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 March 28, 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 March 28, 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
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,271 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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, American Airlines ($199), Southwest ($204), and United Airlines ($257) offers the cheapest pricing from Portland, Maine to Houston. American Airlines is 56% 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?

    $100 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 Frontier, with prices starting from $134 and $146, 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$163Average$207FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$444FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$398FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$261Average$479FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$322Average$574FlexibilityNo cancel feeOn-time63%
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