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Cheap flights from Houston George Bush Intcntl Airport to Portland from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Portland departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Houston George Bush Intcntl Airport to Portland

Cheap round-trip flights

Delta Logo
6:15 am - 2:19 pmIAH-PWM
7h 04m1 stop
Delta Logo
12:50 pm - 6:40 pmPWM-IAH
6h 50m1 stop
$257Delta
Find Deal
Wed, Jan 14 - Sun, Jan 18
Delta Logo
9:40 am - 11:05 pmIAH-PWM
12h 25m2 stops
Delta Logo
12:50 pm - 6:40 pmPWM-IAH
6h 50m1 stop
$262Delta
Find Deal
Tue, Jan 13 - Sun, Jan 18
Delta Logo
9:40 am - 11:05 pmIAH-PWM
12h 25m2 stops
Delta Logo
10:00 am - 5:43 pmPWM-IAH
8h 43m2 stops
$267Delta
Find Deal
Mon, Jan 12 - Sun, Jan 18
Delta Logo
5:20 am - 12:08 pmIAH-PWM
5h 48m1 stop
Delta Logo
1:34 pm - 8:00 pmPWM-IAH
7h 26m1 stop
$268Delta
Find Deal
Tue, Aug 12 - Tue, Sep 9
Delta Logo
12:51 pm - 12:03 amIAH-PWM
10h 12m2 stops
Delta Logo
1:39 pm - 9:35 pmPWM-IAH
8h 56m1 stop
$273Delta
Find Deal
Tue, Aug 12 - Tue, Sep 9
American Airlines Logo
7:35 am - 2:35 pmIAH-PWM
6h 00m1 stop
American Airlines Logo
5:59 pm - 11:15 pmPWM-IAH
6h 16m1 stop
$289American Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 18
American Airlines Logo
9:00 am - 4:17 pmIAH-PWM
6h 17m1 stop
American Airlines Logo
6:00 am - 1:40 pmPWM-IAH
8h 40m2 stops
$294American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
6:01 am - 4:17 pmIAH-PWM
9h 16m2 stops
American Airlines Logo
6:00 am - 1:40 pmPWM-IAH
8h 40m2 stops
$299American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
5:05 pm - 11:45 pmIAH-PWM
5h 40m1 stop
American Airlines Logo
8:02 am - 2:38 pmPWM-IAH
7h 36m1 stop
$307American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
United Airlines Logo
7:20 am - 2:26 pmIAH-PWM
6h 06m1 stop
United Airlines Logo
10:05 am - 5:21 pmPWM-IAH
8h 16m1 stop
$371United Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2

American Airlines flights from Houston George Bush Intcntl Airport to Portland, Maine

Our best American Airlines deals on Houston George Bush Intcntl Airport to Portland, Maine flight tickets
American Airlines
Oct 14
IAH7:35 amHouston George Bush Intcntl
6h 00m
1 stop
PWM2:35 pmPortland
Oct 18
PWM5:59 pmPortland
6h 16m
1 stop
IAH11:15 pmHouston George Bush Intcntl
$289
Find similar
American Airlines
Sep 27
IAH9:00 amHouston George Bush Intcntl
6h 17m
1 stop
PWM4:17 pmPortland
Oct 4
PWM6:00 amPortland
8h 40m
2 stops
IAH1:40 pmHouston George Bush Intcntl
$294
Find similar
American Airlines
Sep 27
IAH6:01 amHouston George Bush Intcntl
9h 16m
2 stops
PWM4:17 pmPortland
Oct 4
PWM6:00 amPortland
8h 40m
2 stops
IAH1:40 pmHouston George Bush Intcntl
$299
Find similar

Delta flights from Houston George Bush Intcntl Airport to Portland, Maine

Our best Delta deals on Houston George Bush Intcntl Airport to Portland, Maine flight tickets
Delta
Jan 14
IAH6:15 amHouston George Bush Intcntl
7h 04m
1 stop
PWM2:19 pmPortland
Jan 18
PWM12:50 pmPortland
6h 50m
1 stop
IAH6:40 pmHouston George Bush Intcntl
$257
Find similar
Delta
Jan 13
IAH9:40 amHouston George Bush Intcntl
12h 25m
2 stops
PWM11:05 pmPortland
Jan 18
PWM12:50 pmPortland
6h 50m
1 stop
IAH6:40 pmHouston George Bush Intcntl
$262
Find similar
Delta
Jan 12
IAH9:40 amHouston George Bush Intcntl
12h 25m
2 stops
PWM11:05 pmPortland
Jan 18
PWM10:00 amPortland
8h 43m
2 stops
IAH5:43 pmHouston George Bush Intcntl
$267
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Portland, Maine 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Wed 1/14

6:15 am-2:19 pm

1 stop7h 04m

Portland

Sun 1/18

12:50 pm-6:40 pm

1 stop6h 50m

$257

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 1/13

9:40 am-11:05 pm

2 stops12h 25m

Portland

Sun 1/18

12:50 pm-6:40 pm

1 stop6h 50m

$262

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Mon 1/12

9:40 am-11:05 pm

2 stops12h 25m

Portland

Sun 1/18

10:00 am-5:43 pm

2 stops8h 43m

$267

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 8/12

5:20 am-12:08 pm

1 stop5h 48m

Portland

Tue 9/9

1:34 pm-8:00 pm

1 stop7h 26m

$268

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 8/12

12:51 pm-12:03 am

2 stops10h 12m

Portland

Tue 9/9

1:39 pm-9:35 pm

1 stop8h 56m

$273

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 10/14

7:35 am-2:35 pm

1 stop6h 00m

Portland

Sat 10/18

5:59 pm-11:15 pm

1 stop6h 16m

$289

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 9/27

9:00 am-4:17 pm

1 stop6h 17m

Portland

Sat 10/4

6:00 am-1:40 pm

2 stops8h 40m

$294

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Sat 9/27

6:01 am-4:17 pm

2 stops9h 16m

Portland

Sat 10/4

6:00 am-1:40 pm

2 stops8h 40m

$299

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Thu 9/4

5:05 pm-11:45 pm

1 stop5h 40m

Portland

Mon 9/8

8:02 am-2:38 pm

1 stop7h 36m

$307

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

Tue 8/26

7:20 am-2:26 pm

1 stop6h 06m

Portland

Tue 9/2

10:05 am-5:21 pm

1 stop8h 16m

$371

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Houston George Bush Intcntl Airport is in November. Flight prices, which tend to average around $256, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $316.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Houston George Bush Intcntl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $293. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Houston George Bush Intcntl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $554.

What is the cheapest time of day to depart on your flight to Portland, Maine?

At noon is the cheapest time of day to fly from Houston George Bush Intcntl Airport to Portland, Maine when you can find flight prices for as low as $387. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $737. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Houston George Bush Intcntl to Portland flight route?

Fly from Houston George Bush Intcntl to Portland for the best Houston George Bush Intcntl - Portland flight prices

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $412 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Houston George Bush Intcntl Airport for as low as $295 on momondo.

What cabin class options are available on Houston George Bush Intcntl to Portland flights?

There are 1 cabin classes available to choose from on Houston George Bush Intcntl to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Houston George Bush Intcntl Airport to Portland, Maine flight prices changed over time?

As of July 2025, prices for Houston George Bush Intcntl Airport to Portland, Maine flights are approximately 35% cheaper when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Portland, Maine (IAH to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Portland, Maine

Best Price Found

$129

Fastest flight time

4h 07m

Direct flights

Sun

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from Houston George Bush Intcntl Airport in the past 72 hours is $129. The best round-trip flight deal from Houston George Bush Intcntl Airport to Portland, Maine found on momondo in the last 72 hours is $257.
The fastest flight from Houston George Bush Intcntl Airport to Portland, Maine takes 4h 07m
Direct flights go from Houston George Bush Intcntl Airport to Portland, Maine on Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport near Portland, Maine: Portland (PWM)
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  • How far is Houston George Bush Intcntl to Portland by plane?

    Portland is 1666.8 mi away from Houston George Bush Intcntl. A reasonable flight in good conditions will take 5h 32m.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Portland Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Portland Airport refresh daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Portland Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston George Bush Intcntl Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Portland, Maine?

  • What is the most popular airline from Houston George Bush Intcntl Airport to Portland, Maine?

Best airlines flying from Houston George Bush Intcntl Airport to Portland, Maine

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $217Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Bartlett
Lewiston
Gorham
Brunswick
Auburn
Intervale
Windham
Falmouth
Bath
Georgetown
Oxford
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Portland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Portland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Houston to Portland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portland from Houston with this policy.

How can momondo help me find flights from Houston to Portland?

momondo provides multiple filters to help you find the best flight to Portland from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Portland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portland from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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