HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$127+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — PWM
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 12, 2026.

This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:16 pm
IAH
-
PWM
1 stop5h 39m
American Airlines
Tue 3/175:40 pm
PWM
-
IAH
1 stop7h 13m
American Airlines
Deal found 2/9$261
This Delta deal was found by Cheapflights users on 2/9. 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 3/45:30 am
IAH
-
PWM
1 stop5h 30m
Delta
Sun 3/85:23 am
PWM
-
IAH
1 stop6h 47m
Delta
Deal found 2/9$270
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/294:41 pm
IAH
-
PWM
1 stop6h 04m
American Airlines
Wed 8/59:05 am
PWM
-
IAH
1 stop7h 39m
American Airlines
Deal found 2/9$289
This Delta deal was found by Cheapflights users on 2/9. 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 5/275:20 am
IAH
-
PWM
1 stop5h 37m
Delta
Wed 6/311:02 am
PWM
-
IAH
2 stops12h 11m
Delta
Deal found 2/9$294
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 5/277:00 am
IAH
-
PWM
1 stop8h 46m
American Airlines
Wed 6/32:24 pm
PWM
-
IAH
1 stop9h 04m
American Airlines
Deal found 2/10$299
This Delta deal was found by Cheapflights users on 2/11. 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.
Wed 7/291:15 pm
IAH
-
PWM
2 stops9h 44m
Delta
Wed 8/56:50 pm
PWM
-
IAH
1 stop6h 07m
Delta
Deal found 2/11$304
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:23 pm
IAH
-
PWM
1 stop8h 27m
United Airlines
Fri 7/314:58 pm
PWM
-
IAH
1 stop8h 17m
United Airlines
Deal found 2/9$308
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:23 pm
IAH
-
PWM
1 stop8h 27m
United Airlines
Sat 7/43:30 pm
PWM
-
IAH
Nonstop4h 53m
United Airlines
Deal found 2/11$314

Find 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(American Airlines)

One-way from

$127
(Kiwi.com)

Popular in

February

Cheapest in

December

Average price

$597
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. 24% potential increase in price ($142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 12, 2026.
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 3/4

5:30 am-12:00 pm

1 stop5h 30m

Portland

Sun 3/8

5:23 am-11:10 am

1 stop6h 47m

$270

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 6/19

2:23 pm-11:50 pm

1 stop8h 27m

Portland

Tue 6/23

7:15 pm-12:35 am

1 stop6h 20m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 7/29

4:41 pm-11:45 pm

1 stop6h 04m

Portland

Wed 8/5

9:05 am-3:44 pm

1 stop7h 39m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 7/10

2:23 pm-11:50 pm

1 stop8h 27m

Portland

Tue 7/14

7:15 pm-12:35 am

1 stop6h 20m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 5/27

5:04 am-2:26 pm

1 stop8h 22m

Portland

Wed 6/3

6:00 am-11:15 am

1 stop6h 15m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 6/20

2:23 pm-11:50 pm

1 stop8h 27m

Portland

Sat 6/27

3:15 pm-11:50 pm

1 stop9h 35m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 5/27

5:20 am-11:57 am

1 stop5h 37m

Portland

Wed 6/3

11:02 am-10:13 pm

2 stops12h 11m

$294

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 5/27

7:00 am-4:46 pm

1 stop8h 46m

Portland

Wed 6/3

2:24 pm-10:28 pm

1 stop9h 04m

$299

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 6/27

2:23 pm-11:50 pm

1 stop8h 27m

Portland

Sat 7/4

3:15 pm-11:50 pm

1 stop9h 35m

$323

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 6/3

3:06 pm-10:47 pm

1 stop6h 41m

Portland

Tue 6/9

6:08 am-12:36 pm

1 stop7h 28m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 18 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Portland, Maine flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $128). Flying from Houston George Bush Intcntl Airport to Portland, Maine in November is currently the most expensive (average of $224). 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.

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 February 12, 2026.
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
8,179 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

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
8,179 reviews
Delta
7.9
Good
8,179 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

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
9,276 reviews
Delta
7.9
Good
8,179 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

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
11,267 reviews
Delta
7.9
Good
8,179 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

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 5h 30m. Fly via Delta or United 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 ($128), American Airlines ($256), and United Airlines ($276) offers the cheapest pricing from Houston George Bush Intcntl Airport to Portland, Maine. Delta is currently priced 70% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $128 on Delta. Other airlines that offer cheap prices include American Airlines from $133 and United Airlines from $150 one-way.

  • 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, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $128). Flying from Houston George Bush Intcntl Airport to Portland, Maine in November is currently the most expensive (average of $224). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$339FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$375FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$470FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.