Houston

$134+ Cheap flights from Portland, ME (PWM) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Jul 8 — Jul 151
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Cheap flight deals from Portland to Houston

Cheapest flights from Portland to Houston
Explore the most affordable flight options available from Portland to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.

This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:30 pm
PWM
-
IAH
Nonstop4h 53m
United Airlines
Sat 7/49:30 am
IAH
-
PWM
Nonstop3h 56m
United Airlines
Deal found 6/3$329
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:50 pm
PWM
-
IAH
1 stop6h 14m
Delta
Mon 11/165:25 am
IAH
-
PWM
1 stop5h 28m
Delta
Deal found 6/3$349
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:10 pm
PWM
-
HOU
1 stop5h 35m
Southwest
Tue 7/213:55 pm
HOU
-
PWM
1 stop6h 05m
Southwest
Deal found 6/7$349
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:35 pm
PWM
-
HOU
1 stop9h 08m
Delta
Mon 11/166:00 am
HOU
-
PWM
1 stop5h 18m
Delta
Deal found 6/8$355
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:28 am
PWM
-
IAH
2 stops9h 03m
American Airlines
Mon 8/245:00 am
IAH
-
PWM
2 stops8h 21m
American Airlines
Deal found 6/7$359
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:48 am
PWM
-
IAH
2 stops11h 36m
Delta
Sat 7/46:30 am
IAH
-
PWM
1 stop6h 11m
Delta
Deal found 6/5$364
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:05 am
PWM
-
HOU
1 stop7h 11m
Delta
Mon 8/241:13 pm
HOU
-
PWM
2 stops10h 46m
Delta
Deal found 6/8$364
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:52 am
PWM
-
IAH
1 stop9h 17m
Multiple Airlines
Sun 8/238:02 pm
IAH
-
PWM
2 stops25h 36m
Multiple Airlines
Deal found 6/7$373
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:15 am
PWM
-
IAH
1 stop6h 44m
United Airlines
Tue 7/216:10 am
IAH
-
PWM
1 stop7h 21m
United Airlines
Deal found 6/7$378
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:00 am
PWM
-
IAH
1 stop8h 47m
American Airlines
Fri 7/245:02 pm
IAH
-
PWM
1 stop6h 41m
American Airlines
Deal found 6/6$383
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:00 am
PWM
-
HOU
1 stop8h 26m
American Airlines
Mon 8/249:32 am
HOU
-
PWM
1 stop8h 20m
American Airlines
Deal found 6/8$383
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:30 pm
PWM
-
IAH
Nonstop4h 30m
United Airlines
Sat 7/251:46 pm
IAH
-
PWM
1 stop8h 44m
United Airlines
Deal found 6/7$384

Find flight deals from Portland to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 8, 2026.

Round-trip from

$329
(United Airlines)

One-way from

$134
(JetBlue)

Popular in

March

Cheapest in

January

Average price

$500
From Portland to Houston
One-way flight from Portland to Houston
Highest demand for flights based on searches. 17% potential increase in price ($80 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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, Cheapflights users made 2,558,603 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Portland to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 7/3

6:00 am-11:51 am

1 stop6h 51m

Houston George Bush Intcntl

Sat 7/4

6:10 am-2:31 pm

1 stop7h 21m

$349

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

$349

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 10/15

3:00 pm-9:38 pm

1 stop7h 38m

Houston George Bush Intcntl

Mon 10/19

2:10 pm-11:06 pm

1 stop7h 56m

$349

PortlandHouston

PWM - IAH

PWMIAH

Portland

Thu 11/12

5:41 am-1:33 pm

2 stops8h 52m

Houston George Bush Intcntl

Mon 11/16

5:03 pm-11:38 pm

1 stop5h 35m

$354

PortlandHouston

PWM - HOU

PWMHOU

Portland

Mon 9/28

5:55 am-12:25 pm

1 stop7h 30m

Houston Hobby

Tue 9/29

11:20 am-9:10 pm

2 stops8h 50m

$354

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 10/17

6:00 am-4:35 pm

2 stops11h 35m

Houston George Bush Intcntl

Sat 10/24

1:15 pm-11:49 pm

2 stops9h 34m

$359

PortlandHouston

PWM - IAH

PWMIAH

Portland

Sat 11/7

4:50 pm-10:04 pm

1 stop6h 14m

Houston George Bush Intcntl

Sun 11/15

5:55 am-12:18 pm

1 stop5h 23m

$359

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

$360

PortlandHouston

PWM - IAH

PWMIAH

Portland

Wed 7/15

6:59 pm-11:57 pm

1 stop5h 58m

Houston George Bush Intcntl

Wed 7/22

3:27 pm-12:59 am

2 stops8h 32m

$364

PortlandHouston

PWM - IAH

PWMIAH

Portland

Fri 7/3

6:57 pm-11:56 pm

1 stop5h 59m

Houston George Bush Intcntl

Wed 7/8

3:27 pm-12:59 am

2 stops8h 32m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 32 resultsSorted by cheapest first
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Best time to book a flight from Portland to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Houston

What is the cheapest month to book a flight from Portland, Maine to Houston?

Currently, June is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $139). Flying from Portland, Maine to Houston in March is currently the most expensive (average of $284). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to HOU?

Find hourly flight availability from Portland to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 8, 2026.

When flying from Portland, Maine to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Portland, Maine to Houston?

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

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Houston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated June 8, 2026.
Read through reviews of airlines operating flights from Portland to Houston, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Boarding

8.1

Overall

7.9

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Crew

8.6

Boarding

8.1

Overall

7.9

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Crew

8.6

Boarding

8.1

Overall

7.9

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Crew

8.6

Boarding

8.1

Overall

7.9

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Crew

8.6

Boarding

8.1

Overall

7.9

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Related info for your journey

Find useful and relevant information for your journey from Portland to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Portland to Houston?

    Most people fly from Portland (PWM) if they book a flight from Portland to Houston. On average, Portland has 0 outbound flights to Houston per day from 4 airlines. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Houston?

    Airlines like United Airlines, Delta, and Southwest fly from Portland, Maine to Houston in about 5h 35m. The time it takes to get you to your destination can typically vary by up to 1h 16m. There are 1677 mi between Portland, Maine and Houston. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland, Maine to Houston round-trip?

    According to our current data, Delta ($149), American Airlines ($171), and United Airlines ($254) offers the cheapest pricing from Portland, Maine to Houston. Delta is 60% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland, Maine to Houston one-way?

    $128 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $129 and $144, respectively.

  • Can I find deals for flights from Portland to Houston that include hotel bookings?

    Yes. In addition to deals on Portland to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Houston.

  • Can I find deals for business class flights from Portland to Houston?

    Yes. Cheapflights offers flight deals from Portland to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Houston?

    Currently, June is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $139). Flying from Portland, Maine to Houston in March is currently the most expensive (average of $284). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Portland to Houston

Discover the top 4 airlines that operate flights from Portland to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$321FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$171Average$388FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$254Average$404FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$529FlexibilityNo cancel feeOn-time63%

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