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$85+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — PWM
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Portland are usually found in November or September, booked 16 days in advance, depart on a Saturday or Monday and return on a Tuesday

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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$169
(American Airlines)

One-way from

$85
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$313
Provider with most accurate pricing for Houston George Bush Intcntl-Portland flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Portland flights.
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From Houston George Bush Intcntl to Portland
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One-way flight from Houston George Bush Intcntl to Portland
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 25, 2025.

This American Airlines deal was found by Cheapflights users on 9/24. 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 11/57:18 amIAH - PWM
1 stop8h 47mAmerican Airlines
Sat 11/85:21 pmPWM - IAH
1 stop6h 19mAmerican Airlines
Deal found 9/24$169
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/186:00 amIAH - PWM
1 stop7h 56mAmerican Airlines
Sat 10/255:59 pmPWM - IAH
1 stop6h 16mAmerican Airlines
Deal found 9/24$179
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/145:05 pmIAH - PWM
1 stop5h 46mAmerican Airlines
Sat 10/255:59 pmPWM - IAH
1 stop6h 16mAmerican Airlines
Deal found 9/24$204
This American Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 10/241:18 pmIAH - PWM
1 stop8h 27mAmerican Airlines
Tue 10/285:21 pmPWM - IAH
1 stop6h 58mAmerican Airlines
Deal found 9/25$219
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/276:30 amIAH - PWM
1 stop6h 05mAmerican Airlines
Sat 11/15:12 pmPWM - IAH
1 stop7h 07mAmerican Airlines
Deal found 9/24$239
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/226:01 amIAH - PWM
2 stops8h 34mAmerican Airlines
Wed 10/293:38 pmPWM - IAH
1 stop7h 45mAmerican Airlines
Deal found 9/24$244
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/175:05 pmIAH - PWM
1 stop5h 46mAmerican Airlines
Tue 10/213:38 pmPWM - IAH
1 stop7h 45mAmerican Airlines
Deal found 9/24$289

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 September 25, 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 11/5

7:18 am-5:05 pm

1 stop8h 47m

Portland

Sat 11/8

5:21 pm-10:40 pm

1 stop6h 19m

$169

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 10/22

5:05 pm-11:51 pm

1 stop5h 46m

Portland

Wed 10/29

3:28 pm-11:43 pm

1 stop9h 15m

$179

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 10/18

6:00 am-2:56 pm

1 stop7h 56m

Portland

Sat 10/25

5:59 pm-11:15 pm

1 stop6h 16m

$179

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 10/31

5:28 pm-10:41 am

1 stop16h 13m

Portland

Sun 11/2

3:15 pm-7:03 pm

2 stops28h 48m

$301

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 10/31

7:35 am-2:38 pm

1 stop6h 03m

Portland

Sun 11/2

5:43 am-11:36 am

1 stop6h 53m

$304

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 3/17

7:40 am-2:34 pm

1 stop5h 54m

Portland

Mon 3/23

4:48 pm-12:12 am

1 stop8h 24m

$309

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 3/18

5:00 am-1:52 pm

1 stop7h 52m

Portland

Tue 3/24

9:34 am-3:12 pm

1 stop6h 38m

$309

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 11/5

1:15 pm-10:54 pm

1 stop8h 39m

$85

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 10/31

7:35 am-2:38 pm

1 stop6h 03m

$125

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 11/5

9:05 pm-2:30 pm

2 stops16h 25m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 17 results
1
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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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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

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 September 19, 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $296). Flying from Houston George Bush Intcntl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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 September 25, 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 38% 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 September 25, 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
8.0
Very good
7,973 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 8h 47m. Fly via American Airlines to get the fastest option. The distance between Houston George Bush Intcntl Airport and Portland, Maine is about 1664 mi.

  • 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 ($236), and United Airlines ($256) offers the cheapest pricing from Houston George Bush Intcntl Airport to Portland, Maine. Delta is currently priced 66% 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $296). Flying from Houston George Bush Intcntl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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
Brunswick
North Conway
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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$342FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$462FlexibilityNo cancel feeOn-time69%

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