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Cheap flights from Portland, Maine to Houston from $69

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 11/19. 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
0 bags

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American Airlines Logo
5:12 pm - 11:19 pmPWM-IAH
7h 07m1 stop
American Airlines Logo
5:01 pm - 11:59 pmIAH-PWM
5h 58m1 stop
$223American Airlines
Find Deal
sáb, nov 1 - seg, nov 3
Multiple Airlines Logo
6:18 pm - 10:46 amPWM-IAH
17h 28m1 stop
Multiple Airlines Logo
5:28 pm - 10:41 amIAH-PWM
16h 13m1 stop
$275Multiple Airlines
Find Deal
qua, nov 12 - sex, nov 14
Multiple Airlines Logo
6:18 pm - 2:36 pmPWM-IAH
21h 18m1 stop
Multiple Airlines Logo
10:28 am - 10:36 amIAH-PWM
23h 08m1 stop
$279Multiple Airlines
Find Deal
sáb, nov 15 - ter, nov 18
Multiple Airlines Logo
6:18 pm - 10:46 amPWM-IAH
17h 28m1 stop
Multiple Airlines Logo
10:28 am - 10:36 amIAH-PWM
23h 08m1 stop
$281Multiple Airlines
Find Deal
qua, nov 12 - ter, nov 18
United Airlines Logo
4:54 pm - 11:59 pmPWM-IAH
8h 05m1 stop
United Airlines Logo
4:50 pm - 11:59 pmIAH-PWM
6h 09m1 stop
$292United Airlines
Find Deal
qua, out 29 - sex, out 31
Multiple Airlines Logo
3:15 pm - 5:26 pmPWM-IAH
27h 11m2 stops
Multiple Airlines Logo
10:28 am - 10:36 amIAH-PWM
23h 08m1 stop
$295Multiple Airlines
Find Deal
qui, nov 13 - ter, nov 18
American Airlines Logo
6:14 am - 1:42 pmPWM-IAH
8h 28m1 stop
American Airlines Logo
6:18 am - 2:38 pmIAH-PWM
7h 20m1 stop
$297American Airlines
Find Deal
qua, out 29 - sex, out 31
Delta Logo
4:53 pm - 10:24 pmPWM-IAH
6h 31m1 stop
Delta Logo
5:30 am - 12:08 pmIAH-PWM
5h 38m1 stop
$309Delta
Find Deal
qui, nov 20 - qui, nov 27
Delta Logo
12:45 pm - 11:59 pmPWM-IAH
12h 14m2 stops
Delta Logo
5:30 am - 12:00 pmIAH-PWM
5h 30m1 stop
$314Delta
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sáb, nov 1 - seg, nov 3
United Airlines Logo
6:00 am - 12:23 pmPWM-IAH
7h 23m1 stop
United Airlines Logo
9:31 am - 2:38 pmIAH-PWM
4h 07mnonstop
$330United Airlines
Find Deal
sáb, out 18 - sáb, out 25

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
Nov 1
PWM5:12 pmPortland
7h 07m
1 stop
IAH11:19 pmHouston George Bush Intcntl
Nov 3
IAH5:01 pmHouston George Bush Intcntl
5h 58m
1 stop
PWM11:59 pmPortland
$223
Find similar
American Airlines
Oct 29
PWM6:14 amPortland
8h 28m
1 stop
IAH1:42 pmHouston George Bush Intcntl
Oct 31
IAH6:18 amHouston George Bush Intcntl
7h 20m
1 stop
PWM2:38 pmPortland
$297
Find similar
American Airlines
Nov 11
PWM5:21 pmPortland
6h 34m
1 stop
IAH10:55 pmHouston George Bush Intcntl
Nov 13
IAH9:39 amHouston George Bush Intcntl
6h 02m
1 stop
PWM4:41 pmPortland
$298
Find similar

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

Our best Delta deals on Portland, Maine to Houston George Bush Intcntl Airport flight tickets
Delta
Nov 20
PWM4:53 pmPortland
6h 31m
1 stop
IAH10:24 pmHouston George Bush Intcntl
Nov 27
IAH5:30 amHouston George Bush Intcntl
5h 38m
1 stop
PWM12:08 pmPortland
$309
Find similar
Delta
Nov 1
PWM12:45 pmPortland
12h 14m
2 stops
IAH11:59 pmHouston George Bush Intcntl
Nov 3
IAH5:30 amHouston George Bush Intcntl
5h 30m
1 stop
PWM12:00 pmPortland
$314
Find similar
Delta
Nov 1
PWM12:45 pmPortland
12h 14m
2 stops
IAH11:59 pmHouston George Bush Intcntl
Nov 3
IAH12:55 pmHouston George Bush Intcntl
9h 14m
2 stops
PWM11:09 pmPortland
$319
Find similar

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 outubro 2, 2025.
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

PortlandHouston

PWM - IAH

PWMIAH

Portland

sáb 11/1

5:12 pm-11:19 pm

1 stop7h 07m

Houston George Bush Intcntl

seg 11/3

5:01 pm-11:59 pm

1 stop5h 58m

$223

PortlandHouston

PWM - IAH

PWMIAH

Portland

qua 11/12

6:18 pm-10:46 am

1 stop17h 28m

Houston George Bush Intcntl

sex 11/14

5:28 pm-10:41 am

1 stop16h 13m

$275

PortlandHouston

PWM - IAH

PWMIAH

Portland

sáb 11/15

6:18 pm-2:36 pm

1 stop21h 18m

Houston George Bush Intcntl

ter 11/18

10:28 am-10:36 am

1 stop23h 08m

$279

PortlandHouston

PWM - IAH

PWMIAH

Portland

qua 11/12

6:18 pm-10:46 am

1 stop17h 28m

Houston George Bush Intcntl

ter 11/18

10:28 am-10:36 am

1 stop23h 08m

$281

PortlandHouston

PWM - IAH

PWMIAH

Portland

qua 10/29

4:54 pm-11:59 pm

1 stop8h 05m

Houston George Bush Intcntl

sex 10/31

4:50 pm-11:59 pm

1 stop6h 09m

$292

PortlandHouston

PWM - IAH

PWMIAH

Portland

qui 11/13

3:15 pm-5:26 pm

2 stops27h 11m

Houston George Bush Intcntl

ter 11/18

10:28 am-10:36 am

1 stop23h 08m

$295

PortlandHouston

PWM - IAH

PWMIAH

Portland

qua 10/29

6:14 am-1:42 pm

1 stop8h 28m

Houston George Bush Intcntl

sex 10/31

6:18 am-2:38 pm

1 stop7h 20m

$297

PortlandHouston

PWM - IAH

PWMIAH

Portland

qui 11/20

4:53 pm-10:24 pm

1 stop6h 31m

Houston George Bush Intcntl

qui 11/27

5:30 am-12:08 pm

1 stop5h 38m

$309

PortlandHouston

PWM - IAH

PWMIAH

Portland

sáb 11/1

12:45 pm-11:59 pm

2 stops12h 14m

Houston George Bush Intcntl

seg 11/3

5:30 am-12:00 pm

1 stop5h 30m

$314

PortlandHouston

PWM - IAH

PWMIAH

Portland

sáb 10/18

6:00 am-12:23 pm

1 stop7h 23m

Houston George Bush Intcntl

sáb 10/25

9:31 am-2:38 pm

Nonstop4h 07m

$330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 April is also very affordable. Most momondo users find prices during this month for around $337.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Portland, Maine to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $400. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $503.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Portland, Maine to Houston George Bush Intcntl Airport flights are usually those with departure times in the morning. Our users have found flights to Houston George Bush Intcntl Airport in the morning for as low as $404. Try not to purchase tickets in the afternoon because they tend to be around $539. Of course, these prices can vary depending on the time of year and what airport you fly to.

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.

Can stopping save me money on Portland, Maine to Houston George Bush Intcntl Airport flights?

You could potentially save up to 11% on your flight if you consider stops on a Portland, Maine to Houston George Bush Intcntl Airport flight.

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

As of October 2025, prices for Portland, Maine to Houston George Bush Intcntl Airport flights are approximately 122% more expensive 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

4h 32m

Direct flights

Sun
The fastest flight from Portland, Maine to Houston George Bush Intcntl Airport takes 4h 32m
Direct flights go from Portland, Maine to Houston George Bush Intcntl Airport on Sunday. The only airline offering direct flights is United Airlines.
Search flight deals

  • 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 6h 31m.

  • 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
FrontierPriceFrom $218Free CancellationRating
5.8
3,155 reviews
Search Frontier flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $247Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,962 reviews
Search Delta flights

Traveling to a place near Houston?

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

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.

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