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$118+ Cheap flights from George Bush Intcntl (IAH) to Portland, ME (PWM)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — PWM
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Portland are usually found in September or August, booked 17 days in advance, depart on a Saturday or Monday and return on a Tuesday

Find flight deals from George Bush Intcntl to Portland

Cheapest flights from George Bush Intcntl to Portland
Explore the most affordable flight options available from George Bush Intcntl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

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 12/103:19 pmIAH - PWM
1 stop7h 02mDelta
Wed 12/176:08 amPWM - IAH
1 stop6h 22mDelta
Deal found 11/12$251
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.
Tue 12/212:10 pmIAH - PWM
2 stops10h 31mAmerican Airlines
Tue 12/93:34 pmPWM - IAH
1 stop6h 54mAmerican Airlines
Deal found 11/11$256
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:36 pmIAH - PWM
1 stop7h 47mDelta
Tue 12/94:53 pmPWM - IAH
1 stop6h 30mDelta
Deal found 11/11$275
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 12/37:01 amIAH - PWM
2 stops8h 06mDelta
Thu 12/44:53 pmPWM - IAH
1 stop6h 30mDelta
Deal found 11/12$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.
Wed 12/36:00 amIAH - PWM
2 stops9h 28mAmerican Airlines
Thu 12/412:23 pmPWM - IAH
2 stops9h 09mAmerican Airlines
Deal found 11/12$285
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.
Sat 12/61:36 pmIAH - PWM
1 stop7h 47mDelta
Sat 12/136:08 amPWM - IAH
1 stop7h 23mDelta
Deal found 11/12$295
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.
Wed 12/107:40 amIAH - PWM
2 stops9h 35mAmerican Airlines
Wed 12/175:17 pmPWM - IAH
1 stop6h 46mAmerican Airlines
Deal found 11/12$300
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:35 pmIAH - PWM
1 stop7h 37mUnited Airlines
Wed 12/1710:35 amPWM - IAH
1 stop7h 41mUnited Airlines
Deal found 11/10$311
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.
Sat 12/1310:43 amIAH - PWM
2 stops10h 49mAmerican Airlines
Wed 12/177:02 amPWM - IAH
2 stops11h 34mAmerican Airlines
Deal found 11/10$315
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.
Fri 11/283:00 pmIAH - PWM
1 stop6h 33mAmerican Airlines
Tue 12/25:21 pmPWM - IAH
1 stop6h 34mAmerican Airlines
Deal found 11/11$329
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.
Thu 12/115:08 pmIAH - PWM
1 stop5h 29mAmerican Airlines
Thu 12/186:00 amPWM - IAH
2 stops10h 40mAmerican Airlines
Deal found 11/11$331

Cheap flight deals from George Bush Intcntl to Portland

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Portland (PWM). 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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(Delta)

One-way from

$118
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$548
Provider with most accurate pricing for Houston George Bush Intcntl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Portland flights.
Search Deals
From Houston George Bush Intcntl to Portland
Search Deals
One-way flight from Houston George Bush Intcntl to Portland
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Portland 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 12, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland that are best for you.

Fly from

George Bush Intcntl

Fly to

Portland

Route

Depart

Return

Price

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 12/10

3:19 pm-11:21 pm

1 stop7h 02m

Portland

Wed 12/17

6:08 am-11:30 am

1 stop6h 22m

$251

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 12/6

5:00 am-4:25 pm

2 stops10h 25m

Portland

Sat 12/13

7:11 am-3:43 pm

1 stop9h 32m

$256

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sun 2/15

2:23 pm-11:04 pm

1 stop7h 41m

Portland

Thu 2/19

5:31 am-11:37 am

1 stop7h 06m

$259

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 4/7

5:00 pm-11:39 pm

1 stop5h 39m

Portland

Tue 4/14

5:30 pm-11:23 pm

1 stop6h 53m

$259

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 12/3

7:20 am-2:19 pm

1 stop5h 59m

Portland

Thu 12/4

3:00 pm-10:32 pm

1 stop8h 32m

$275

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 12/2

1:36 pm-10:23 pm

1 stop7h 47m

Portland

Tue 12/9

4:53 pm-10:23 pm

1 stop6h 30m

$275

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 12/3

7:01 am-4:07 pm

2 stops8h 06m

Portland

Thu 12/4

4:53 pm-10:23 pm

1 stop6h 30m

$280

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 11/18

10:28 am-10:36 am

1 stop23h 08m

$118

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Thu 12/11

8:07 pm-9:06 am

1 stop11h 59m

$121

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 12/13

2:35 pm-11:12 pm

1 stop7h 37m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 14 results
1
2

Compare providers for flights from George Bush Intcntl to Portland

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 George Bush Intcntl to Portland 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 Houston George Bush Intcntl Airport-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Houston George Bush Intcntl Airport-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Portland, Maine 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 Houston George Bush Intcntl Airport-Portland, Maine 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 George Bush Intcntl to Portland

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

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Portland, Maine?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Portland. Price data was last updated on November 7, 2025.

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to Portland, Maine. 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 Houston George Bush Intcntl Airport to Portland, Maine?

Currently, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $113). Flying from Houston George Bush Intcntl Airport to Portland, Maine in November is currently the most expensive (average of $218). 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 IAH to PWM?

Find hourly flight availability from George Bush Intcntl to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

One of the essential ways to save on airfare from Houston George Bush Intcntl Airport to Portland, Maine is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 49% on airfare.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated November 12, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

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
9,015 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

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
11,049 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

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 George Bush Intcntl to Portland. 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 into for flights to Portland from Houston George Bush Intcntl?

    Portland (PWM) is the airport you will fly into if you book a flight from Houston George Bush Intcntl to Portland. You should not have trouble finding flights to Portland from Houston George Bush Intcntl; the airport handles an average of 0 inbound flights from Houston George Bush Intcntl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Portland airport from Houston George Bush Intcntl. It is only a 2.9 mi journey from Portland (PWM) to Portland’s city center.

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

    There are many flights that can get you from Houston George Bush Intcntl Airport to Portland, Maine in 7h 02m. Fly via Delta or American Airlines to get the fastest option. The distance between Houston George Bush Intcntl Airport and Portland, Maine is about 1664 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Delta ($139), American Airlines ($256), and United Airlines ($276) offers the cheapest pricing from Houston George Bush Intcntl Airport to Portland, Maine. Delta is currently priced 68% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $113). Flying from Houston George Bush Intcntl Airport to Portland, Maine in November is currently the most expensive (average of $218). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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Top 3 airlines flying from George Bush Intcntl to Portland

Discover the top 3 airlines that operate flights from George Bush Intcntl to Portland. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$341FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$377FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$466FlexibilityNo cancel feeOn-time69%

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