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George Bush Intcntl

$96+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — IAH
mar. 15 — mar. 221
sáb. 3/15
sáb. 3/22
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 marzo 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(CheapOair)

One-way from

$96
(Booking.com)

Popular in

May

Cheapest in

October

Average price

$422
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. 15% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 marzo 10, 2025.

This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/97:29 pmPWM - IAH
1 stop17h 30mFrontier
lun. 4/149:14 pmIAH - PWM
1 stop15h 51mFrontier
Deal found 3/9$160
This American Airlines deal was found by Cheapflights users on 3/10. 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.
mié. 4/97:35 amPWM - IAH
1 stop7h 27mAmerican Airlines
mié. 4/162:57 pmIAH - PWM
1 stop6h 27mAmerican Airlines
Deal found 3/10$199
This Delta deal was found by Cheapflights users on 3/9. 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.
mar. 7/156:00 amPWM - IAH
1 stop7h 09mDelta
mar. 7/221:15 pmIAH - PWM
2 stops9h 30mDelta
Deal found 3/9$262
This JetBlue deal was found by Cheapflights users on 3/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/307:15 amPWM - IAH
1 stop8h 10mJetBlue
jue. 5/151:25 pmIAH - PWM
1 stop7h 32mJetBlue
Deal found 3/10$335
This United Airlines deal was found by Cheapflights users on 3/10. 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.
vie. 9/264:48 pmPWM - IAH
1 stop8h 07mUnited Airlines
dom. 10/56:00 amIAH - PWM
1 stop6h 49mUnited Airlines
Deal found 3/10$341
This Mytrip deal was found by Cheapflights users on 3/10. 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.
vie. 3/286:18 pmPWM - IAH
2 stops26h 58mMultiple Airlines
dom. 4/68:32 pmIAH - PWM
1 stop14h 09mMultiple Airlines
Deal found 3/10$521

Find flights from Portland to George Bush Intcntl within your budget

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 marzo 10, 2025.

Fly from

Portland

Fly to

George Bush Intcntl

Route

Depart

Return

Price

PortlandHouston

PWM - IAH

PWMIAH

Portland

mié. 4/9

7:29 pm-11:59 am

1 stop17h 30m

Houston George Bush Intcntl

lun. 4/14

9:14 pm-2:05 pm

1 stop15h 51m

$160

PortlandHouston

PWM - IAH

PWMIAH

Portland

mié. 4/9

7:35 am-2:02 pm

1 stop7h 27m

Houston George Bush Intcntl

mié. 4/16

2:57 pm-10:24 pm

1 stop6h 27m

$199

PortlandHouston

PWM - IAH

PWMIAH

Portland

mar. 7/15

6:00 am-12:09 pm

1 stop7h 09m

Houston George Bush Intcntl

mar. 7/22

1:15 pm-11:45 pm

2 stops9h 30m

$262

PortlandHouston

PWM - IAH

PWMIAH

Portland

jue. 4/24

6:45 pm-12:39 am

1 stop6h 54m

Houston George Bush Intcntl

lun. 4/28

10:05 pm-2:42 pm

2 stops15h 37m

$495

PortlandHouston

PWM - IAH

PWMIAH

Portland

mié. 4/9

8:12 pm-11:28 pm

2 stops28h 16m

Houston George Bush Intcntl

lun. 4/14

11:39 am-5:27 pm

3 stops28h 48m

$670

PortlandHouston

PWM - IAH

PWMIAH

Portland

jue. 5/8

9:29 pm-3:47 pm

1 stop19h 18m

$96

PortlandHouston

PWM - IAH

PWMIAH

Portland

lun. 4/14

3:11 pm-12:25 am

1 stop10h 14m

$114

PortlandHouston

PWM - IAH

PWMIAH

Portland

dom. 4/13

7:35 am-2:02 pm

1 stop7h 27m

$149

PortlandHouston

PWM - IAH

PWMIAH

Portland

mié. 8/6

3:04 pm-11:25 pm

1 stop9h 21m

$174

PortlandHouston

PWM - IAH

PWMIAH

Portland

mié. 3/19

3:00 pm-11:59 pm

2 stops9h 59m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >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 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 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.

Travel insights for flights from Portland to George Bush Intcntl

Get recent, data-driven insights about flights from Portland to George Bush Intcntl including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Houston George Bush Intcntl Airport (average of $241). Flying from Portland, Maine to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 marzo 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 at noon, which can drop the price by up to 8% versus a flight in the morning.

What is the cheapest day to fly from Portland, Maine to Houston George Bush Intcntl Airport?

Use this chart to determine the cheapest time to fly round-trip from Portland to George Bush Intcntl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland, Maine to Houston George Bush Intcntl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston George Bush Intcntl Airport ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston George Bush Intcntl Airport when rainfall is around 3.2 in.

Temperature in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston George Bush Intcntl Airport, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

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 marzo 10, 2025.
To help decide which airline to fly from Portland to Houston, 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
7,973 reviews

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,631 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier
6.0
Okay
3,308 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Frontier, at $160, 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 60% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Portland, Maine to Houston George Bush Intcntl Airport are Frontier ($96), American Airlines ($149), and United Airlines ($174).

  • 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, August is the cheapest month in which you can book a flight from Portland, Maine to Houston George Bush Intcntl Airport (average of $241). Flying from Portland, Maine to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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
Conroe
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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 marzo 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$208Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$396FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$289Average$478FlexibilityNo cancel feeOn-time69%
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