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Cheap flights from Portland, Maine to Houston from $142

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 6/7. 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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Find the cheapest flights from Portland, Maine to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 1:28 pm
PWM
-
IAH
8h 28m
1 stop
United Airlines Logo
2:40 pm - 9:51 pm
IAH
-
PWM
6h 11m
1 stop
$344United Airlines
Sat, Jun 6 - Sat, Jun 13
Delta Logo
6:05 am - 11:15 am
PWM
-
IAH
6h 10m
1 stop
Delta Logo
2:37 pm - 9:31 pm
IAH
-
PWM
5h 54m
1 stop
$349Delta
Sat, Aug 22 - Sat, Aug 29
Southwest Logo
7:40 am - 12:50 pm
PWM
-
HOU
6h 10m
1 stop
Southwest Logo
8:35 pm - 9:45 am
HOU
-
PWM
12h 10m
1 stop
$354Southwest
Thu, Jun 4 - Sun, Jun 7
Delta Logo
2:05 pm - 9:25 pm
PWM
-
IAH
8h 20m
1 stop
Delta Logo
5:40 am - 4:49 pm
IAH
-
PWM
10h 09m
2 stops
$354Delta
Thu, Jun 4 - Sun, Jun 7
Delta Logo
11:03 am - 9:25 pm
PWM
-
IAH
11h 22m
2 stops
Delta Logo
5:40 am - 4:49 pm
IAH
-
PWM
10h 09m
2 stops
$359Delta
Thu, Jun 4 - Sun, Jun 7
Delta Logo
6:00 am - 12:11 pm
PWM
-
HOU
7h 11m
1 stop
Delta Logo
6:03 am - 1:00 pm
HOU
-
PWM
5h 57m
1 stop
$359Delta
Sun, Jun 7 - Sun, Jun 14
Southwest Logo
1:00 pm - 9:40 pm
PWM
-
HOU
9h 40m
2 stops
Southwest Logo
8:35 pm - 9:45 am
HOU
-
PWM
12h 10m
1 stop
$360Southwest
Thu, Jun 4 - Sun, Jun 7
Multiple Airlines Logo
9:52 am - 6:09 pm
PWM
-
IAH
9h 17m
1 stop
Multiple Airlines Logo
9:17 pm - 7:42 pm
IAH
-
PWM
21h 25m
2 stops
$367Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
9:52 am - 6:09 pm
PWM
-
IAH
9h 17m
1 stop
Multiple Airlines Logo
6:30 am - 9:12 am
IAH
-
PWM
25h 42m
2 stops
$370Multiple Airlines
Sat, Aug 22 - Sun, Aug 30
American Airlines Logo
7:16 am - 2:12 pm
PWM
-
IAH
7h 56m
1 stop
American Airlines Logo
3:06 pm - 10:43 pm
IAH
-
PWM
6h 37m
1 stop
$383American Airlines
Wed, Jun 17 - Sat, Jun 20

Delta flights from Portland, Maine to Houston

Our best Delta deals on Portland, Maine to Houston flight tickets
Delta
Aug 22
PWM6:05 amPortland
6h 10m
1 stop
IAH11:15 amHouston George Bush Intcntl
Aug 29
IAH2:37 pmHouston George Bush Intcntl
5h 54m
1 stop
PWM9:31 pmPortland
$349
Delta
Jun 4
PWM2:05 pmPortland
8h 20m
1 stop
IAH9:25 pmHouston George Bush Intcntl
Jun 7
IAH5:40 amHouston George Bush Intcntl
10h 09m
2 stops
PWM4:49 pmPortland
$354
Delta
Jun 7
PWM6:00 amPortland
7h 11m
1 stop
HOU12:11 pmHouston Hobby
Jun 14
HOU6:03 amHouston Hobby
5h 57m
1 stop
PWM1:00 pmPortland
$359

American Airlines flights from Portland, Maine to Houston

Our best American Airlines deals on Portland, Maine to Houston flight tickets
American Airlines
Jun 17
PWM7:16 amPortland
7h 56m
1 stop
IAH2:12 pmHouston George Bush Intcntl
Jun 20
IAH3:06 pmHouston George Bush Intcntl
6h 37m
1 stop
PWM10:43 pmPortland
$383
American Airlines
Jun 4
PWM6:00 amPortland
8h 17m
2 stops
IAH1:17 pmHouston George Bush Intcntl
Jun 7
IAH5:01 amHouston George Bush Intcntl
8h 23m
2 stops
PWM2:24 pmPortland
$393
American Airlines
Jun 1
PWM5:36 pmPortland
7h 23m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Jun 3
IAH4:46 pmHouston George Bush Intcntl
6h 13m
1 stop
PWM11:59 pmPortland
$417

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 May 10, 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

Sat 6/6

6:00 am-1:28 pm

1 stop8h 28m

Houston George Bush Intcntl

Sat 6/13

2:40 pm-9:51 pm

1 stop6h 11m

$344
Quickest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 8/22

6:05 am-11:15 am

1 stop6h 10m

Houston George Bush Intcntl

Sat 8/29

2:37 pm-9:31 pm

1 stop5h 54m

$349

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 6/4

7:40 am-12:50 pm

1 stop6h 10m

Houston Hobby

Sun 6/7

8:35 pm-9:45 am

1 stop12h 10m

$354

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 6/4

2:05 pm-9:25 pm

1 stop8h 20m

Houston George Bush Intcntl

Sun 6/7

5:40 am-4:49 pm

2 stops10h 09m

$354

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 6/4

11:03 am-9:25 pm

2 stops11h 22m

Houston George Bush Intcntl

Sun 6/7

5:40 am-4:49 pm

2 stops10h 09m

$359

PortlandHouston

PWM - HOU

PWMHOU

Portland

Sun 6/7

6:00 am-12:11 pm

1 stop7h 11m

Houston Hobby

Sun 6/14

6:03 am-1:00 pm

1 stop5h 57m

$359

PortlandHouston

PWM - HOU

PWMHOU

Portland

Thu 6/4

1:00 pm-9:40 pm

2 stops9h 40m

Houston Hobby

Sun 6/7

8:35 pm-9:45 am

1 stop12h 10m

$360

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 8/22

9:52 am-6:09 pm

1 stop9h 17m

Houston George Bush Intcntl

Sat 8/29

9:17 pm-7:42 pm

2 stops21h 25m

$367

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 8/22

9:52 am-6:09 pm

1 stop9h 17m

Houston George Bush Intcntl

Sun 8/30

6:30 am-9:12 am

2 stops25h 42m

$370

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 6/17

7:16 am-2:12 pm

1 stop7h 56m

Houston George Bush Intcntl

Sat 6/20

3:06 pm-10:43 pm

1 stop6h 37m

$383

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 July is, on average, the cheapest month to fly to Houston from Portland, Maine, with most prices found around $139. The month of June is another great option to travel to Houston, with average flight prices from Portland, Maine averaging around $139.

What is the cheapest Portland to Houston flight route?

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

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

You are more likely to see cheaper flights to Houston from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $375 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Portland, Maine for as low as $169 on momondo.

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 55m

Direct flights

Sun

Airports in Houston

2 airports
The fastest flight from Portland, Maine to Houston takes 5h 55m
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 55m, 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 $149Free CancellationRating
7.9
8,454 reviews
Search Delta flights
American AirlinesPriceFrom $171Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,304 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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