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 ($208), 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.

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 $130 on United Airlines. Other airlines that offer cheap prices include American Airlines from $145 and Delta from $150 one-way.

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

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

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.

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).

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 $653, our data indicates the cheapest price to be $573. The most popular route (Houston George Bush Intcntl - Portland), is priced around $227.

What are the most popular airlines that fly from Houston George Bush Intcntl Airport to Portland, Maine?

American Airlines, Delta and United Airlines are the most popular airlines when flying from Houston George Bush Intcntl Airport to Portland, Maine.

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

January is one of the best times of the year to fly to Portland, Maine from Houston George Bush Intcntl Airport. Prices for January average $422 per person but you can even find prices for as low as $244. The most expensive prices can be found in the month of April. Opting for a January flight can save you 21% on your journey compared to booking in April

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.

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.

$130+ Flights from Houston George Bush Intcntl Airport to Portland, ME

Q: How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Portland, Maine?

Airfare is below average for this route at the moment. Houston George Bush Intcntl Airport to Portland, Maine flights typically cost between $295 and $547 in September. The cheapest round-trip price found within the last 3 days was $227 on United Airlines (Sep 10-Sep 17).

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1. Tell us where you want to go

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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.

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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

Round-trip from	$227 (United Airlines)
One-way from	$130 (United Airlines)
Popular in	December
Cheapest in	November
Average price	$368
Good round-trip deal	$598 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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Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Price to beat on a round-trip 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 August 14, 2025.

Wed 9/106:30 amIAH - PWM

1 stop6h 56mUnited Airlines

Wed 9/176:00 amPWM - IAH

1 stop7h 24mUnited Airlines

Deal found 8/13

$227

Mon 9/294:54 pmIAH - PWM

1 stop6h 05mUnited Airlines

Wed 10/15:41 pmPWM - IAH

1 stop6h 49mUnited Airlines

Deal found 8/13

$243

Tue 8/267:20 amIAH - PWM

1 stop6h 06mUnited Airlines

Wed 9/176:23 pmPWM - IAH

1 stop6h 36mUnited Airlines

Deal found 8/12

$283

Tue 9/2312:39 pmIAH - PWM

1 stop10h 55mDelta

Tue 9/306:00 amPWM - IAH

1 stop7h 08mDelta

Deal found 8/14

$286

Wed 10/225:30 amIAH - PWM

1 stop5h 52mDelta

Thu 10/301:27 pmPWM - IAH

1 stop7h 14mDelta

Deal found 8/14

$289

Wed 10/2210:50 amIAH - PWM

2 stops11h 19mDelta

Tue 10/286:00 amPWM - IAH

1 stop7h 24mDelta

Deal found 8/14

$294

Wed 10/2212:55 pmIAH - PWM

2 stops9h 14mDelta

Sat 11/112:00 pmPWM - IAH

2 stops8h 41mDelta

Deal found 8/14

$299

Tue 9/24:04 pmIAH - PWM

1 stop6h 59mDelta

Sat 9/1311:34 amPWM - IAH

1 stop7h 28mDelta

Deal found 8/14

$314

Thu 10/2312:37 pmIAH - PWM

1 stop10h 28mDelta

Wed 10/296:00 amPWM - IAH

1 stop5h 54mDelta

Deal found 8/14

$321

Sat 9/2711:00 amIAH - PWM

2 stops12h 34mDelta

Sat 10/47:00 amPWM - IAH

2 stops11h 39mDelta

Deal found 8/14

$324

Best flights from George Bush Intcntl to Portland
Discover carefully curated flight deals from George Bush Intcntl to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Wed 9/106:30 amIAH - PWM

1 stop6h 56mUnited Airlines

Wed 9/176:00 amPWM - IAH

1 stop7h 24mUnited Airlines

Deal found 8/13

$227

Tue 9/2312:39 pmIAH - PWM

1 stop10h 55mDelta

Wed 10/16:00 amPWM - IAH

1 stop8h 04mDelta

Deal found 8/14

$286

Thu 10/235:05 pmIAH - PWM

1 stop5h 46mAmerican Airlines

Thu 10/303:38 pmPWM - IAH

1 stop7h 45mAmerican Airlines

Deal found 8/14

$289

Mon 9/294:54 pmIAH - PWM

1 stop6h 05mUnited Airlines

Wed 10/15:41 pmPWM - IAH

1 stop6h 49mUnited Airlines

Deal found 8/13

$243

Tue 9/2312:39 pmIAH - PWM

1 stop10h 55mDelta

Tue 9/306:00 amPWM - IAH

1 stop7h 08mDelta

Deal found 8/14

$286

Tue 8/267:20 amIAH - PWM

1 stop6h 06mUnited Airlines

Wed 9/176:23 pmPWM - IAH

1 stop6h 36mUnited Airlines

Deal found 8/12

$283

Wed 9/243:59 pmIAH - PWM

1 stop7h 12mDelta

Wed 10/111:45 amPWM - IAH

1 stop6h 56mDelta

Deal found 8/14

$289

Sat 10/251:29 pmIAH - PWM

1 stop7h 50mDelta

Fri 10/316:00 amPWM - IAH

1 stop7h 24mDelta

Deal found 8/14

$289

Wed 10/223:14 pmIAH - PWM

1 stop6h 55mDelta

Fri 10/316:00 amPWM - IAH

1 stop7h 24mDelta

Deal found 8/14

$289

Tue 10/286:00 amIAH - PWM

1 stop6h 06mDelta

Sat 11/11:27 pmPWM - IAH

1 stop7h 14mDelta

Deal found 8/14

$289

Fri 10/241:29 pmIAH - PWM

1 stop7h 50mDelta

Fri 10/316:00 amPWM - IAH

1 stop7h 24mDelta

Deal found 8/14

$289

Fri 10/241:29 pmIAH - PWM

1 stop7h 50mDelta

Mon 10/276:00 amPWM - IAH

1 stop7h 24mDelta

Deal found 8/14

$289

Last-minute flights from George Bush Intcntl to Portland
Discover last-minute flight deals from George Bush Intcntl to Portland. Data last updated August 14, 2025 and is based on user searches.

Tue 8/193:58 pmIAH - PWM

1 stop7h 05mDelta

Tue 9/166:00 amPWM - IAH

1 stop7h 08mDelta

Deal found 8/14

$434

Wed 8/203:58 pmIAH - PWM

1 stop7h 05mDelta

Sat 8/236:00 amPWM - IAH

1 stop7h 02mDelta

Deal found 8/13

$449

Wed 8/205:05 amIAH - PWM

2 stops9h 25mAmerican Airlines

Sat 8/236:00 amPWM - IAH

2 stops8h 47mAmerican Airlines

Deal found 8/13

$459

Sat 8/237:00 amIAH - PWM

1 stop8h 22mDelta

Thu 8/286:00 amPWM - IAH

1 stop8h 00mDelta

Deal found 8/13

$394

Sat 8/2312:51 pmIAH - PWM

2 stops10h 12mDelta

Tue 8/261:39 pmPWM - IAH

2 stops11h 17mDelta

Deal found 8/13

$404

Sun 8/244:47 pmIAH - PWM

1 stop6h 12mAmerican Airlines

Sat 9/69:18 amPWM - IAH

1 stop7h 31mAmerican Airlines

Deal found 8/13

$369

Tue 8/267:20 amIAH - PWM

1 stop6h 06mUnited Airlines

Wed 9/176:23 pmPWM - IAH

1 stop6h 36mUnited Airlines

Deal found 8/12

$283

Tue 9/24:04 pmIAH - PWM

1 stop6h 59mDelta

Sat 9/1311:34 amPWM - IAH

1 stop7h 28mDelta

Deal found 8/14

$314

Tue 9/24:04 pmIAH - PWM

1 stop6h 59mDelta

Wed 9/104:50 pmPWM - IAH

2 stops8h 07mDelta

Deal found 8/14

$319

Mon 9/88:32 amIAH - PWM

1 stop5h 43mAmerican Airlines

Wed 9/101:02 pmPWM - IAH

2 stops8h 13mAmerican Airlines

Deal found 8/14

$294

Mon 9/85:45 amIAH - PWM

2 stops9h 25mDelta

Wed 9/101:39 pmPWM - IAH

2 stops11h 18mDelta

Deal found 8/14

$299

Wed 9/106:30 amIAH - PWM

1 stop6h 56mUnited Airlines

Wed 9/176:00 amPWM - IAH

1 stop7h 24mUnited Airlines

Deal found 8/13

$227

One-way flights from George Bush Intcntl to Portland
Search for one-way flight options from George Bush Intcntl to Portland. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Mon 9/296:00 amIAH - PWM

1 stop6h 53mUnited Airlines

Deal found 8/13

$130

Mon 9/224:54 pmIAH - PWM

1 stop6h 05mAmerican Airlines

Deal found 8/14

$145

Mon 9/2212:46 pmIAH - PWM

2 stops10h 25mDelta

Deal found 8/14

$150

Thu 9/411:05 amIAH - PWM

2 stops12h 43mDelta

Deal found 8/13

$215

Wed 8/205:45 amIAH - PWM

1 stop5h 44mDelta

Deal found 8/13

$225

Sat 9/276:47 amIAH - PWM

3 stops31h 05mMultiple Airlines

Deal found 8/12

$233

Thu 9/185:05 pmIAH - PWM

1 stop5h 40mAmerican Airlines

Deal found 8/14

$264

Tue 8/193:58 pmIAH - PWM

1 stop7h 05mDelta

Deal found 8/13

$290

Fri 8/2910:15 pmIAH - PWM

2 stops19h 31mUnited Airlines

Deal found 8/13

$317

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 9/10

6:30 am-2:26 pm

1 stop6h 56m

Portland

Wed 9/17

6:00 am-12:24 pm

1 stop7h 24m

$227

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Mon 9/29

4:54 pm-11:59 pm

1 stop6h 05m

Portland

Wed 10/1

5:41 pm-11:30 pm

1 stop6h 49m

$243

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 8/26

7:20 am-2:26 pm

1 stop6h 06m

Portland

Wed 9/17

6:23 pm-11:59 pm

1 stop6h 36m

$283

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 9/23

12:39 pm-12:34 am

1 stop10h 55m

Portland

Wed 10/1

6:00 am-1:04 pm

1 stop8h 04m

$286

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 9/23

12:39 pm-12:34 am

1 stop10h 55m

Portland

Tue 9/30

6:00 am-12:08 pm

1 stop7h 08m

$286

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Thu 10/23

5:05 pm-11:51 pm

1 stop5h 46m

Portland

Thu 10/30

3:38 pm-10:23 pm

1 stop7h 45m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 9/24

3:59 pm-12:11 am

1 stop7h 12m

Portland

Wed 10/1

11:45 am-5:41 pm

1 stop6h 56m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 10/25

1:29 pm-10:19 pm

1 stop7h 50m

Portland

Fri 10/31

6:00 am-12:24 pm

1 stop7h 24m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 10/22

3:14 pm-11:09 pm

1 stop6h 55m

Portland

Fri 10/31

6:00 am-12:24 pm

1 stop7h 24m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 10/28

6:00 am-1:06 pm

1 stop6h 06m

Portland

Sat 11/1

1:27 pm-7:41 pm

1 stop7h 14m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 19 results

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?

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?

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 41% on airfare.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Portland, Maine?

Reviews of airlines servicing Portland

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

7,980 reviews

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

7,980 reviews

Delta

8.0

Very good

7,980 reviews

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

8,916 reviews

Delta

8.0

Very good

7,980 reviews

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

7,980 reviews

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

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, Delta ($139), American Airlines ($208), 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.
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 $130 on United Airlines. Other airlines that offer cheap prices include American Airlines from $145 and Delta from $150 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 $653, our data indicates the cheapest price to be $573. The most popular route (Houston George Bush Intcntl - Portland), is priced around $227.
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

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Conway

Lewiston

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Top 3 airlines flying from George Bush Intcntl to Portland

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$139	Average$335	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$208	Average$382	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$256	Average$427	FlexibilityNo cancel fee	On-time69%

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$130+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Round-trip from

One-way from

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Good round-trip deal

Find flight deals from George Bush Intcntl to Portland

Cheapest flights from George Bush Intcntl to PortlandExplore 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 August 14, 2025.

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 August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland that are best for you.

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.

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 August 8, 2025.

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

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 August 14, 2025.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Portland, Maine?

Reviews of airlines servicing Portland

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.

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?

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

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

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

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

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

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

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

Traveling to a place near Portland?

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Alternative routes for George Bush Intcntl to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from George Bush Intcntl to Portland

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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 August 14, 2025.