Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland, Maine to Houston from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Houston departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland, Maine to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:18 pm - 5:06 pm
PWM
-
IAH
23h 48m
1 stop
Multiple Airlines Logo
7:44 pm - 4:16 pm
IAH
-
PWM
19h 32m
2 stops
$296Multiple Airlines
Sat, May 2 - Tue, May 12
Multiple Airlines Logo
6:18 pm - 5:06 pm
PWM
-
IAH
23h 48m
1 stop
Multiple Airlines Logo
8:50 pm - 7:16 pm
IAH
-
PWM
21h 26m
2 stops
$301Multiple Airlines
Sat, May 2 - Wed, May 13
American Airlines Logo
6:00 am - 1:39 pm
PWM
-
IAH
8h 39m
1 stop
American Airlines Logo
12:19 pm - 11:26 pm
IAH
-
PWM
10h 07m
2 stops
$303American Airlines
Sat, May 2 - Sat, May 9
American Airlines Logo
3:40 pm - 11:59 pm
PWM
-
IAH
9h 19m
2 stops
American Airlines Logo
12:19 pm - 11:26 pm
IAH
-
PWM
10h 07m
2 stops
$308American Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
11:07 am - 8:50 am
PWM
-
IAH
22h 43m
1 stop
Multiple Airlines Logo
7:04 pm - 10:27 am
IAH
-
PWM
14h 23m
1 stop
$311Multiple Airlines
Wed, Jun 3 - Tue, Jun 9
American Airlines Logo
11:57 am - 5:21 pm
PWM
-
IAH
6h 24m
1 stop
American Airlines Logo
3:11 pm - 10:13 pm
IAH
-
PWM
6h 02m
1 stop
$320American Airlines
Fri, May 1 - Tue, May 5
Multiple Airlines Logo
4:44 pm - 10:48 pm
PWM
-
IAH
31h 04m
2 stops
Multiple Airlines Logo
7:04 pm - 9:12 am
IAH
-
PWM
13h 08m
1 stop
$322Multiple Airlines
Tue, Jun 16 - Fri, Jun 19
American Airlines Logo
3:39 pm - 11:59 pm
PWM
-
IAH
9h 20m
2 stops
American Airlines Logo
7:00 am - 4:46 pm
IAH
-
PWM
8h 46m
1 stop
$325American Airlines
Wed, May 6 - Wed, May 27
American Airlines Logo
11:56 am - 5:21 pm
PWM
-
IAH
6h 25m
1 stop
American Airlines Logo
4:56 pm - 12:35 am
IAH
-
PWM
6h 39m
1 stop
$340American Airlines
Wed, May 20 - Sun, May 24
Multiple Airlines Logo
9:47 am - 5:59 pm
PWM
-
IAH
9h 12m
1 stop
Multiple Airlines Logo
7:44 pm - 4:16 pm
IAH
-
PWM
19h 32m
2 stops
$347Multiple Airlines
Fri, May 1 - Tue, May 12

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

Our best American Airlines deals on Portland, Maine to Houston George Bush Intcntl Airport flight tickets
American Airlines
May 2
PWM6:00 amPortland
8h 39m
1 stop
IAH1:39 pmHouston George Bush Intcntl
May 9
IAH12:19 pmHouston George Bush Intcntl
10h 07m
2 stops
PWM11:26 pmPortland
$303
American Airlines
May 2
PWM3:40 pmPortland
9h 19m
2 stops
IAH11:59 pmHouston George Bush Intcntl
May 9
IAH12:19 pmHouston George Bush Intcntl
10h 07m
2 stops
PWM11:26 pmPortland
$308
American Airlines
May 1
PWM11:57 amPortland
6h 24m
1 stop
IAH5:21 pmHouston George Bush Intcntl
May 5
IAH3:11 pmHouston George Bush Intcntl
6h 02m
1 stop
PWM10:13 pmPortland
$320

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

Our best United Airlines deals on Portland, Maine to Houston George Bush Intcntl Airport flight tickets
United Airlines
Aug 18
PWM3:44 pmPortland
8h 46m
1 stop
IAH11:30 pmHouston George Bush Intcntl
Aug 22
IAH9:35 amHouston George Bush Intcntl
4h 07m
PWM2:42 pmPortland
$429
United Airlines
Jun 16
PWM4:51 pmPortland
7h 08m
1 stop
IAH10:59 pmHouston George Bush Intcntl
Jun 19
IAH4:35 pmHouston George Bush Intcntl
6h 16m
1 stop
PWM11:51 pmPortland
$443
United Airlines
May 16
PWM3:23 pmPortland
8h 51m
1 stop
IAH11:14 pmHouston George Bush Intcntl
May 19
IAH5:09 amHouston George Bush Intcntl
8h 05m
1 stop
PWM2:14 pmPortland
$449

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Houston George Bush Intcntl Airport 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 April 2, 2026.
Use the filters below to find and compare flights from Portland, Maine to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 5/2

6:18 pm-5:06 pm

1 stop23h 48m

Houston George Bush Intcntl

Tue 5/12

7:44 pm-4:16 pm

2 stops19h 32m

$296

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 5/2

6:18 pm-5:06 pm

1 stop23h 48m

Houston George Bush Intcntl

Wed 5/13

8:50 pm-7:16 pm

2 stops21h 26m

$301

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 5/2

6:00 am-1:39 pm

1 stop8h 39m

Houston George Bush Intcntl

Sat 5/9

12:19 pm-11:26 pm

2 stops10h 07m

$303

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 5/2

3:40 pm-11:59 pm

2 stops9h 19m

Houston George Bush Intcntl

Sat 5/9

12:19 pm-11:26 pm

2 stops10h 07m

$308

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 6/3

11:07 am-8:50 am

1 stop22h 43m

Houston George Bush Intcntl

Tue 6/9

7:04 pm-10:27 am

1 stop14h 23m

$311
Quickest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 5/1

11:57 am-5:21 pm

1 stop6h 24m

Houston George Bush Intcntl

Tue 5/5

3:11 pm-10:13 pm

1 stop6h 02m

$320

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 6/16

4:44 pm-10:48 pm

2 stops31h 04m

Houston George Bush Intcntl

Fri 6/19

7:04 pm-9:12 am

1 stop13h 08m

$322

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 5/6

3:39 pm-11:59 pm

2 stops9h 20m

Houston George Bush Intcntl

Wed 5/27

7:00 am-4:46 pm

1 stop8h 46m

$325

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 5/20

11:56 am-5:21 pm

1 stop6h 25m

Houston George Bush Intcntl

Sun 5/24

4:56 pm-12:35 am

1 stop6h 39m

$340

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 5/1

9:47 am-5:59 pm

1 stop9h 12m

Houston George Bush Intcntl

Tue 5/12

7:44 pm-4:16 pm

2 stops19h 32m

$347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Houston from

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

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 typical price of a round-trip flight between Portland, Maine and Houston George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of July is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Portland, Maine, with most prices found around $282. If you are unable to visit Houston George Bush Intcntl Airport during the month of July, then departing from Portland, Maine during the month October is also very affordable. Most momondo users find prices during this month for around $318.

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

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

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

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

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

As of April 2026, prices for Portland, Maine to Houston George Bush Intcntl Airport flights are approximately 44% cheaper when compared to flights at the same time last year.

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

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

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

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

Fastest flight time

5h 57m

Direct flights

Sun
The fastest flight from Portland, Maine to Houston George Bush Intcntl Airport takes 5h 57m
Direct flights go from Portland, Maine to Houston George Bush Intcntl Airport on Sunday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Houston George Bush Intcntl Airport

  • How far is Portland to Houston George Bush Intcntl by plane?

    A flight from Portland to Houston George Bush Intcntl will travel around 1666.8 mi. In terms of flight time, this usually takes a little over 5h 57m.

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

    Prices for flights from Portland Airport to Houston George Bush Intcntl Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents required for your trip to Houston George Bush Intcntl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

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

Compare and see reviews for airlines that fly from Portland, Maine to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $251Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,370 reviews
Search Delta flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,533 reviews
Search United Airlines flights

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Conroe
Humble
Spring
Cypress
Montgomery
Jersey Village
Tomball
Livingston

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Houston from Portland.

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

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

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

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

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

Yes. momondo can track prices for Portland to Houston flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Houston George Bush Intcntl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 5/2
Sat 5/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston