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Cheap flights from Portland, Maine to Houston from $180

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 4/9. 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.
Delta Logo
5:30 am - 11:31 am
PWM
-
IAH
7h 01m
1 stop
Delta Logo
12:15 pm - 12:18 am
IAH
-
PWM
11h 03m
2 stops
$339Delta
Tue, Feb 10 - Tue, Feb 24
Delta Logo
6:00 am - 3:16 pm
PWM
-
IAH
10h 16m
2 stops
Delta Logo
12:15 pm - 12:18 am
IAH
-
PWM
11h 03m
2 stops
$344Delta
Wed, Feb 11 - Tue, Feb 24
Multiple Airlines Logo
5:06 pm - 8:08 pm
PWM
-
IAH
28h 02m
2 stops
Multiple Airlines Logo
9:15 pm - 10:17 am
IAH
-
PWM
12h 02m
1 stop
$353Multiple Airlines
Fri, Mar 27 - Tue, Mar 31
Delta Logo
6:00 am - 11:57 am
PWM
-
IAH
6h 57m
1 stop
Delta Logo
12:15 pm - 12:18 am
IAH
-
PWM
11h 03m
2 stops
$355Delta
Sun, Feb 8 - Tue, Feb 24
United Airlines Logo
4:23 pm - 12:09 am
PWM
-
IAH
8h 46m
1 stop
United Airlines Logo
7:20 am - 3:14 pm
IAH
-
PWM
6h 54m
1 stop
$359United Airlines
Wed, Mar 11 - Thu, Mar 12
Multiple Airlines Logo
10:57 am - 10:37 pm
PWM
-
IAH
12h 40m
1 stop
Multiple Airlines Logo
12:46 pm - 10:17 am
IAH
-
PWM
20h 31m
1 stop
$361Multiple Airlines
Sat, Mar 28 - Tue, Mar 31
American Airlines Logo
6:00 pm - 11:53 pm
PWM
-
IAH
6h 53m
1 stop
American Airlines Logo
7:32 am - 5:07 pm
IAH
-
PWM
8h 35m
2 stops
$364American Airlines
Mon, Mar 16 - Wed, Mar 18
Southwest Logo
3:55 pm - 8:55 pm
PWM
-
HOU
6h 00m
1 stop
Southwest Logo
2:45 pm - 11:25 pm
HOU
-
PWM
7h 40m
2 stops
$364Southwest
Wed, May 6 - Mon, May 11
American Airlines Logo
5:40 pm - 11:53 pm
PWM
-
IAH
7h 13m
1 stop
American Airlines Logo
5:16 pm - 11:55 pm
IAH
-
PWM
5h 39m
1 stop
$372American Airlines
Thu, Mar 19 - Mon, Mar 23
Southwest Logo
1:00 pm - 7:10 pm
PWM
-
HOU
7h 10m
1 stop
Southwest Logo
5:05 pm - 11:25 pm
HOU
-
PWM
5h 20m
1 stop
$376Southwest
Wed, May 13 - Mon, May 18

Delta flights from Portland, Maine to Houston

Our best Delta deals on Portland, Maine to Houston flight tickets
Delta
Feb 10
PWM5:30 amPortland
7h 01m
1 stop
IAH11:31 amHouston George Bush Intcntl
Feb 24
IAH12:15 pmHouston George Bush Intcntl
11h 03m
2 stops
PWM12:18 amPortland
$339
Delta
Feb 11
PWM6:00 amPortland
10h 16m
2 stops
IAH3:16 pmHouston George Bush Intcntl
Feb 24
IAH12:15 pmHouston George Bush Intcntl
11h 03m
2 stops
PWM12:18 amPortland
$344
Delta
Feb 8
PWM6:00 amPortland
6h 57m
1 stop
IAH11:57 amHouston George Bush Intcntl
Feb 24
IAH12:15 pmHouston George Bush Intcntl
11h 03m
2 stops
PWM12:18 amPortland
$355

Southwest flights from Portland, Maine to Houston

Our best Southwest deals on Portland, Maine to Houston flight tickets
Southwest
May 6
PWM3:55 pmPortland
6h 00m
1 stop
HOU8:55 pmHouston Hobby
May 11
HOU2:45 pmHouston Hobby
7h 40m
2 stops
PWM11:25 pmPortland
$364
Southwest
May 13
PWM1:00 pmPortland
7h 10m
1 stop
HOU7:10 pmHouston Hobby
May 18
HOU5:05 pmHouston Hobby
5h 20m
1 stop
PWM11:25 pmPortland
$376
Southwest
Mar 11
PWM12:30 pmPortland
9h 05m
2 stops
HOU8:35 pmHouston Hobby
Mar 12
HOU7:45 amHouston Hobby
8h 00m
1 stop
PWM4:45 pmPortland
$384

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 February 3, 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

PortlandHouston

PWM - IAH

PWMIAH

Portland

Tue 2/10

5:30 am-11:31 am

1 stop7h 01m

Houston George Bush Intcntl

Tue 2/24

12:15 pm-12:18 am

2 stops11h 03m

$339

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 2/11

6:00 am-3:16 pm

2 stops10h 16m

Houston George Bush Intcntl

Tue 2/24

12:15 pm-12:18 am

2 stops11h 03m

$344

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 3/27

5:06 pm-8:08 pm

2 stops28h 02m

Houston George Bush Intcntl

Tue 3/31

9:15 pm-10:17 am

1 stop12h 02m

$353

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sun 2/8

6:00 am-11:57 am

1 stop6h 57m

Houston George Bush Intcntl

Tue 2/24

12:15 pm-12:18 am

2 stops11h 03m

$355

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 3/11

4:23 pm-12:09 am

1 stop8h 46m

Houston George Bush Intcntl

Thu 3/12

7:20 am-3:14 pm

1 stop6h 54m

$359

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 3/28

10:57 am-10:37 pm

1 stop12h 40m

Houston George Bush Intcntl

Tue 3/31

12:46 pm-10:17 am

1 stop20h 31m

$361

PortlandHouston

PWM - IAH

PWMIAH

Portland

Mon 3/16

6:00 pm-11:53 pm

1 stop6h 53m

Houston George Bush Intcntl

Wed 3/18

7:32 am-5:07 pm

2 stops8h 35m

$364

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 5/6

3:55 pm-8:55 pm

1 stop6h 00m

Houston Hobby

Mon 5/11

2:45 pm-11:25 pm

2 stops7h 40m

$364

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 3/19

5:40 pm-11:53 pm

1 stop7h 13m

Houston George Bush Intcntl

Mon 3/23

5:16 pm-11:55 pm

1 stop5h 39m

$372

PortlandHouston

PWM - HOU

PWMHOU

Portland

Wed 5/13

1:00 pm-7:10 pm

1 stop7h 10m

Houston Hobby

Mon 5/18

5:05 pm-11:25 pm

1 stop5h 20m

$376

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 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 $256. The month of September is another great option to travel to Houston, with average flight prices from Portland, Maine averaging around $256.

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 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 $369 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 $265 on momondo.

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

There is only 1 cabin class available to choose from on Portland 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

4h 53m

Direct flights

None
The fastest flight from Portland, Maine to Houston takes 4h 53m
There are no direct flights from Portland, Maine to Houston. There are no popular flight routes from Portland, Maine to Houston.
Search flight deals

  • 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 4h 53m, 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 $158Free CancellationRating
7.9
8,132 reviews
Search Delta flights
American AirlinesPriceFrom $171Free CancellationRating
7.2
11,212 reviews
Search American Airlines flights
United AirlinesPriceFrom $247Free CancellationRating
7.4
9,229 reviews
Search United Airlines flights
SouthwestPriceFrom $272Free CancellationRating
8.0
4,271 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

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.
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