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$129+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — PWM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 51 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 June 12, 2025.

Round-trip from

$257
(American Airlines)

One-way from

$129
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$378

Good one-way deal

$240 or less
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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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a one-way flight from Houston George Bush Intcntl to Portland.
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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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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 7/1411:51 amIAH - PWM
1 stop7h 39mAmerican Airlines
Fri 7/186:25 pmPWM - IAH
1 stop6h 34mAmerican Airlines
Deal found 6/10$257
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 8/55:30 amIAH - PWM
2 stops9h 35mDelta
Tue 8/126:00 amPWM - IAH
1 stop8h 00mDelta
Deal found 6/9$262
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 7/82:45 pmIAH - PWM
1 stop7h 29mUnited Airlines
Sat 7/125:35 amPWM - IAH
1 stop6h 10mUnited Airlines
Deal found 6/11$297
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/188:56 pmIAH - PWM
1 stop20h 17mFrontier
Sat 7/266:58 pmPWM - IAH
1 stop16h 50mFrontier
Deal found 6/10$336
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1212:01 pmIAH - PWM
2 stops25h 31mMultiple Airlines
Mon 7/1412:46 pmPWM - IAH
2 stops12h 13mMultiple Airlines
Deal found 6/10$397

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 June 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

Mon 7/14

11:51 am-8:30 pm

1 stop7h 39m

Portland

Fri 7/18

6:25 pm-11:59 pm

1 stop6h 34m

$257

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 8/5

5:30 am-4:05 pm

2 stops9h 35m

Portland

Tue 8/12

6:00 am-1:00 pm

1 stop8h 00m

$262

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 7/8

2:45 pm-11:14 pm

1 stop7h 29m

Portland

Sat 7/12

5:35 am-10:45 am

1 stop6h 10m

$297

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 7/18

8:56 pm-6:13 pm

1 stop20h 17m

Portland

Sat 7/26

6:58 pm-10:48 am

1 stop16h 50m

$336

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 7/12

12:01 pm-2:32 pm

2 stops25h 31m

Portland

Mon 7/14

12:46 pm-11:59 pm

2 stops12h 13m

$397

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Mon 7/28

1:14 pm-10:52 pm

1 stop8h 38m

$129

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 7/30

1:07 pm-11:29 pm

2 stops9h 22m

$134

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 7/19

5:55 am-11:45 am

2 stops28h 50m

$173

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 7/1

2:45 pm-11:14 pm

1 stop7h 29m

$264

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Fri 7/18

10:04 pm-6:13 pm

2 stops19h 09m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 9, 2025.

Booking 51 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 June 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 68% on airfare.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
To help decide which airline to fly from Houston to Portland, see what other customers have to say about Delta, United Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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!
Frontier
6.0
Okay
3,295 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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.

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

    According to our current data, American Airlines ($257), Delta ($262), and United Airlines ($297) offers the cheapest pricing from Houston George Bush Intcntl Airport to Portland, Maine. American Airlines is currently priced 39% 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 $129 on American Airlines. Other airlines that offer cheap prices include Delta from $134 and United Airlines from $264 one-way.

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

    Looking for the cheapest flight from Houston George Bush Intcntl Airport to Portland, Maine? While on average our users pay $243, our data indicates the cheapest price to be $202. The most popular route (Houston George Bush Intcntl - Portland), is priced around $257.

  • 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$227Average$393FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$463FlexibilityNo cancel feeOn-time69%

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