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George Bush Intcntl

$125+ Cheap flights from Portland, ME (PWM) to George Bush Intcntl (IAH)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — IAH
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheap flight deals from Portland to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to George Bush Intcntl (IAH). 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 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(Delta)

One-way from

$125
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$348

Good one-way deal

$243 or less
Provider with most accurate pricing for Portland-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Portland-Houston George Bush Intcntl flights.
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From Portland to Houston George Bush Intcntl
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One-way flight from Portland to Houston George Bush Intcntl
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a one-way flight from Portland to Houston George Bush Intcntl.
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Find flight deals from Portland to George Bush Intcntl

Cheapest flights from Portland to George Bush Intcntl
Explore the most affordable flight options available from Portland to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Delta deal was found by Cheapflights users on 11/9. 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
Tue 12/93:19 pmIAH - PWM
1 stop7h 02mDelta
Deal found 11/9$251
This American Airlines deal was found by Cheapflights users on 11/7. 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 12/139:28 amIAH - PWM
2 stops11h 14mAmerican Airlines
Deal found 11/7$260
This American Airlines 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 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
Mon 12/155:08 pmIAH - PWM
1 stop5h 29mAmerican Airlines
Deal found 11/10$279
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.
Mon 12/86:08 amPWM - IAH
1 stop6h 22mDelta
Mon 12/155:10 amIAH - PWM
2 stops9h 57mDelta
Deal found 11/10$284
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 11/1911:16 amPWM - IAH
1 stop14h 09mMultiple Airlines
Thu 11/208:08 pmIAH - PWM
1 stop11h 58mMultiple Airlines
Deal found 11/7$299
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 11/1911:21 amPWM - IAH
2 stops13h 38mMultiple Airlines
Sun 11/238:35 pmIAH - PWM
1 stop11h 31mMultiple Airlines
Deal found 11/7$307
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Mon 11/179:46 amPWM - IAH
1 stop24h 47mMultiple Airlines
Thu 11/208:08 pmIAH - PWM
1 stop11h 58mMultiple Airlines
Deal found 11/7$316

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to George Bush Intcntl 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 10, 2025.
Use the filters below to find and compare flights from Portland to Houston George Bush Intcntl Airport that are best for you.

Fly from

Portland

Fly to

George Bush Intcntl

Route

Depart

Return

Price

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 12/3

4:53 pm-10:23 pm

1 stop6h 30m

Houston George Bush Intcntl

Tue 12/9

3:19 pm-11:21 pm

1 stop7h 02m

$251

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 1/15

2:31 pm-8:31 pm

1 stop7h 00m

Houston George Bush Intcntl

Sat 1/17

5:00 am-2:39 pm

1 stop8h 39m

$255

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 1/30

5:30 am-11:33 am

1 stop7h 03m

Houston George Bush Intcntl

Wed 2/4

5:15 am-12:03 pm

1 stop5h 48m

$255

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 12/8

5:17 pm-11:03 pm

1 stop6h 46m

Houston George Bush Intcntl

Sat 12/13

9:28 am-9:42 pm

2 stops11h 14m

$260

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 12/8

6:08 am-11:30 am

1 stop6h 22m

Houston George Bush Intcntl

Mon 12/15

5:10 am-4:07 pm

2 stops9h 57m

$284

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 1/15

5:20 am-1:51 pm

2 stops9h 31m

Houston George Bush Intcntl

Sat 1/17

12:39 pm-9:37 pm

2 stops7h 58m

$285

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 11/19

11:16 am-12:25 am

1 stop14h 09m

Houston George Bush Intcntl

Thu 11/20

8:08 pm-9:06 am

1 stop11h 58m

$299

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 1/10

6:18 pm-7:40 am

1 stop14h 22m

$125

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 11/19

6:00 am-11:50 am

1 stop6h 50m

$209

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 11/19

4:53 pm-10:24 pm

1 stop6h 31m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 13 results
1
2

Compare providers for flights from Portland to George Bush Intcntl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to George Bush Intcntl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Houston George Bush Intcntl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland, Maine-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland, Maine-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Houston George Bush Intcntl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl 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 George Bush Intcntl Airport

What is the cheapest month to book a flight from Portland, Maine to Houston George Bush Intcntl Airport?

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Houston George Bush Intcntl Airport (average of $130). Flying from Portland, Maine to Houston George Bush Intcntl Airport in September is currently the most expensive (average of $227). 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 IAH?

Find hourly flight availability from Portland to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

When flying from Portland, Maine to Houston George Bush Intcntl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 32% versus a flight at noon.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated November 10, 2025.
Read through reviews of airlines operating flights from Portland to Houston George Bush Intcntl Airport, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,012 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,045 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,113 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland to George Bush Intcntl. 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 George Bush Intcntl?

    For a flight from Portland to Houston George Bush Intcntl, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Houston George Bush Intcntl per day. 4 airlines have flights to Houston George Bush Intcntl from Portland on a regular basis.

  • How long is the flight from Portland, Maine to Houston George Bush Intcntl Airport?

    There are many flights that can get you from Portland, Maine to Houston George Bush Intcntl Airport in 6h 30m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. The distance between Portland, Maine and Houston George Bush Intcntl Airport is about 1664 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Frontier, at $218, was found to be the cheapest airline from Portland, Maine to Houston George Bush Intcntl Airport.Alternate airlines to your destination round-trip include American Airlines and Delta. Users have found that Frontier is 42% cheaper than the other options available to this destination.

  • What are the cheapest flights from Portland, Maine to Houston George Bush Intcntl Airport?

    On average you can expect to pay $243 for a flight from Portland, Maine to Houston George Bush Intcntl Airport. The cheapest flight overall is $199 while the most popular route, (Portland - Houston George Bush Intcntl) is currently priced at $251.

  • Can I find deals for flights from Portland to George Bush Intcntl that include hotel bookings?

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

  • How can I find direct flights from Portland to George Bush Intcntl?

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

  • Can I find deals for business class flights from Portland to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portland to George Bush Intcntl 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 George Bush Intcntl Airport?

    Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Houston George Bush Intcntl Airport (average of $130). Flying from Portland, Maine to Houston George Bush Intcntl Airport in September is currently the most expensive (average of $227). 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

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Katy
The Woodlands
Spring
Jersey Village
Humble
Conroe
Tomball
Cypress

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Alternative routes for Portland to George Bush Intcntl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Portland to George Bush Intcntl

Discover the top 4 airlines that operate flights from Portland to George Bush Intcntl. 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$218Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$368FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$325FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$295Average$419FlexibilityNo cancel feeOn-time69%

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