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Cheap flights from Portland, Maine to Houston from $148

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 8/20. 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.

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
5:09 pm - 10:24 am
PWM
-
IAH
18h 15m
2 stops
Multiple Airlines Logo
11:19 am - 4:24 pm
IAH
-
PWM
28h 05m
1 stop
$335Multiple Airlines
Wed, Oct 7 - Mon, Oct 12
American Airlines Logo
8:00 am - 3:31 pm
PWM
-
IAH
8h 31m
1 stop
American Airlines Logo
4:50 pm - 11:47 pm
IAH
-
PWM
5h 57m
1 stop
$349American Airlines
Fri, Aug 28 - Mon, Aug 31
Delta Logo
1:35 pm - 9:43 pm
PWM
-
HOU
9h 08m
1 stop
Delta Logo
6:00 am - 12:18 pm
HOU
-
PWM
5h 18m
1 stop
$349Delta
Thu, Nov 12 - Mon, Nov 16
Delta Logo
11:01 am - 9:21 pm
PWM
-
IAH
11h 20m
2 stops
Delta Logo
2:37 pm - 11:13 pm
IAH
-
PWM
7h 36m
1 stop
$354Delta
Fri, Aug 28 - Mon, Aug 31
Delta Logo
1:35 pm - 9:43 pm
PWM
-
HOU
9h 08m
1 stop
Delta Logo
10:05 am - 11:06 pm
HOU
-
PWM
12h 01m
2 stops
$354Delta
Thu, Nov 12 - Mon, Nov 16
Delta Logo
4:50 pm - 10:04 pm
PWM
-
IAH
6h 14m
1 stop
Delta Logo
5:25 am - 11:53 am
IAH
-
PWM
5h 28m
1 stop
$359Delta
Thu, Nov 12 - Mon, Nov 16
Delta Logo
1:35 pm - 9:43 pm
PWM
-
HOU
9h 08m
1 stop
Delta Logo
6:00 am - 12:18 pm
HOU
-
PWM
5h 18m
1 stop
$359Delta
Thu, Nov 12 - Mon, Nov 16
United Airlines Logo
5:08 pm - 12:30 am
PWM
-
IAH
8h 22m
1 stop
United Airlines Logo
7:20 am - 2:20 pm
IAH
-
PWM
6h 00m
1 stop
$366United Airlines
Fri, Nov 6 - Sun, Nov 8
Southwest Logo
5:55 am - 12:15 pm
PWM
-
HOU
7h 20m
1 stop
Southwest Logo
11:55 am - 9:30 pm
HOU
-
PWM
8h 35m
1 stop
$383Southwest
Thu, Sep 17 - Sun, Sep 20
Southwest Logo
12:50 pm - 10:10 pm
PWM
-
HOU
10h 20m
1 stop
Southwest Logo
5:40 am - 12:10 pm
HOU
-
PWM
5h 30m
1 stop
$388Southwest
Fri, Jan 15 - Tue, Jan 19

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Delta flights from Portland, Maine to Houston

Our best Delta deals on Portland, Maine to Houston flight tickets
Delta
Nov 12
PWM1:35 pmPortland
9h 08m
1 stop
HOU9:43 pmHouston Hobby
Nov 16
HOU6:00 amHouston Hobby
5h 18m
1 stop
PWM12:18 pmPortland
$349
Delta
Nov 12
PWM1:35 pmPortland
9h 08m
1 stop
HOU9:43 pmHouston Hobby
Nov 16
HOU10:05 amHouston Hobby
12h 01m
2 stops
PWM11:06 pmPortland
$354
Delta
Nov 12
PWM12:50 pmPortland
9h 53m
2 stops
HOU9:43 pmHouston Hobby
Nov 16
HOU10:05 amHouston Hobby
12h 01m
2 stops
PWM11:06 pmPortland
$359

American Airlines flights from Portland, Maine to Houston

Our best American Airlines deals on Portland, Maine to Houston flight tickets
American Airlines
Aug 28
PWM8:00 amPortland
8h 31m
1 stop
IAH3:31 pmHouston George Bush Intcntl
Aug 31
IAH4:50 pmHouston George Bush Intcntl
5h 57m
1 stop
PWM11:47 pmPortland
$349
American Airlines
Aug 24
PWM5:30 amPortland
7h 04m
1 stop
IAH11:34 amHouston George Bush Intcntl
Aug 28
IAH4:10 pmHouston George Bush Intcntl
6h 27m
1 stop
PWM11:37 pmPortland
$363
American Airlines
Aug 24
PWM5:30 amPortland
7h 04m
1 stop
IAH11:34 amHouston George Bush Intcntl
Aug 28
IAH2:09 pmHouston George Bush Intcntl
8h 38m
2 stops
PWM11:47 pmPortland
$368

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Houston 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 22, 2026.
Use the filters below to find and compare flights from Portland, Maine to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 10/7

5:09 pm-10:24 am

2 stops18h 15m

Houston George Bush Intcntl

Mon 10/12

11:19 am-4:24 pm

1 stop28h 05m

$335

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 8/28

8:00 am-3:31 pm

1 stop8h 31m

Houston George Bush Intcntl

Mon 8/31

4:50 pm-11:47 pm

1 stop5h 57m

$349

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 11/12

1:35 pm-9:43 pm

1 stop9h 08m

Houston Hobby

Mon 11/16

6:00 am-12:18 pm

1 stop5h 18m

$349

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 8/28

11:01 am-9:21 pm

2 stops11h 20m

Houston George Bush Intcntl

Mon 8/31

2:37 pm-11:13 pm

1 stop7h 36m

$354

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 11/12

1:35 pm-9:43 pm

1 stop9h 08m

Houston Hobby

Mon 11/16

10:05 am-11:06 pm

2 stops12h 01m

$354
Quickest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 11/12

4:50 pm-10:04 pm

1 stop6h 14m

Houston George Bush Intcntl

Mon 11/16

5:25 am-11:53 am

1 stop5h 28m

$359

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 11/12

1:35 pm-9:43 pm

1 stop9h 08m

Houston Hobby

Mon 11/16

6:00 am-12:18 pm

1 stop5h 18m

$359

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 11/6

5:08 pm-12:30 am

1 stop8h 22m

Houston George Bush Intcntl

Sun 11/8

7:20 am-2:20 pm

1 stop6h 00m

$366

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 9/17

5:55 am-12:15 pm

1 stop7h 20m

Houston Hobby

Sun 9/20

11:55 am-9:30 pm

1 stop8h 35m

$383

PortlandHouston

PWM - HOU

PWMHOU

Portland

Fri 1/15

12:50 pm-10:10 pm

1 stop10h 20m

Houston Hobby

Tue 1/19

5:40 am-12:10 pm

1 stop5h 30m

$388

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 Houston from

How to get the cheapest flight ticket from Portland, Maine to Houston

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?

What is the cheapest month to fly to Houston?

The month of November is, on average, the cheapest month to fly to Houston from Portland, Maine, with most prices found around $355. The month of October is another great option to travel to Houston, with average flight prices from Portland, Maine averaging around $356.

What is the cheapest Portland to Houston flight route?

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

What cabin class options are available on Portland, Maine to Houston flights?

There are 2 cabin classes available to choose from on Portland, Maine to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Portland, Maine to Houston flight deals and tips

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

Fastest flight time

5h 40m

Direct flights

Sun

Airports in Houston

2 airports
The fastest flight from Portland, Maine to Houston takes 5h 40m
Direct flights go from Portland, Maine to Houston on Sunday. There are no airlines offering direct flights.
There are 2 airports in Houston. From Portland, Maine there are direct flights to Houston George Bush Intcntl (IAH).
Search flight deals

Frequently asked questions about flying from Portland, Maine to Houston

  • How far is Portland to Houston by plane?

    A flight from Portland to Houston will travel around 1678.4 mi. Flights usually cover this in 5h 40m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    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.

  • What documentation or ID do you need to fly to Houston?

    The travel and health documents required for your trip to Houston 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland, Maine to Houston

Compare and see reviews for airlines that fly from Portland, Maine to Houston with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $159Free CancellationRating
7.8
8,473 reviews
Search Delta flights
American AirlinesPriceFrom $251Free CancellationRating
7.1
11,832 reviews
Search American Airlines flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
10,011 reviews
Search United Airlines flights
SouthwestPriceFrom $272Free CancellationRating
8.0
4,239 reviews
Search Southwest flights

Why use momondo?

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

Finding the right flight to Houston from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Houston quick and easy, saving you time and money.

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

Yes. All flights to Houston from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Portland and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from Portland and alert you when they change.

An easier way to manage your Houston trip

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Fri 8/21
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