$143+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Houston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Portland to HoustonExplore 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 July 19, 2026.
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 July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 stop23h 10m
Multiple Airlines
Mon 8/243:25 pm
IAH
- PWM
2 stops28h 54m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/288:00 am
PWM
- IAH
1 stop8h 31m
American Airlines
Mon 8/3110:26 am
IAH
- PWM
1 stop7h 26m
American Airlines
Deal found 7/15![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/14. 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.
Fri 8/2110:30 am
PWM
- HOU
1 stop8h 15m
Southwest
Mon 8/246:10 am
HOU
- PWM
1 stop7h 50m
Southwest
Deal found 7/14![Southwest logo]()
$349
This Delta deal was found by Cheapflights users on 7/17. 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 8/2811:01 am
PWM
- IAH
2 stops11h 20m
Delta
Mon 8/312:37 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 7/17![Delta logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 9/116:00 am
PWM
- IAH
2 stops17h 06m
Multiple Airlines
Mon 9/1411:38 am
IAH
- PWM
1 stop27h 46m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Wed 10/75:09 pm
PWM
- IAH
1 stop24h 05m
Multiple Airlines
Mon 10/1211:19 am
IAH
- PWM
1 stop28h 05m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 7/16. 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 11/1212:50 pm
PWM
- IAH
1 stop6h 38m
Delta
Mon 11/1611:50 am
IAH
- PWM
2 stops10h 16m
Delta
Deal found 7/16![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 7/16. 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 9/111:59 pm
PWM
- IAH
2 stops9h 36m
Delta
Mon 9/1412:21 pm
IAH
- PWM
2 stops9h 56m
Delta
Deal found 7/16![Delta logo]()
$370
This Delta deal was found by Cheapflights users on 7/14. 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 11/1610:05 am
HOU
- PWM
2 stops12h 01m
Delta
Deal found 7/14![Delta logo]()
$379
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/56:09 pm
PWM
- IAH
1 stop6h 49m
American Airlines
Fri 8/712:24 pm
IAH
- PWM
1 stop7h 57m
American Airlines
Deal found 7/15![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 7/18. 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 8/76:30 am
PWM
- IAH
1 stop8h 02m
Delta
Tue 8/112:37 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 7/18![Delta logo]()
$384
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Sun 9/275:15 am
PWM
- IAH
1 stop7h 01m
American Airlines
Tue 9/2912:00 pm
IAH
- PWM
2 stops8h 56m
American Airlines
Deal found 7/15![American Airlines logo]()
$388
Best flights from Portland to HoustonDiscover carefully curated flight deals from Portland to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from Portland to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This Delta deal was found by Cheapflights users on 7/18. 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 7/18![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 7/15. 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.
Sat 8/295:40 am
PWM
- HOU
2 stops9h 15m
Southwest
Sat 9/510:30 am
HOU
- PWM
2 stops9h 30m
Southwest
Deal found 7/15![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 7/18. 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 7/18![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 7/17. 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.
Fri 8/2110:30 am
PWM
- HOU
2 stops7h 40m
Southwest
Mon 8/242:20 pm
HOU
- PWM
2 stops7h 05m
Southwest
Deal found 7/17![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 7/17. 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 9/36:00 am
PWM
- IAH
2 stops12h 40m
Delta
Sun 9/65:41 am
IAH
- PWM
1 stop6h 26m
Delta
Deal found 7/17![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 7/15. 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 8/286:00 am
PWM
- IAH
2 stops12h 40m
Delta
Mon 8/3111:28 am
IAH
- PWM
2 stops10h 45m
Delta
Deal found 7/15![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 7/15. 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.
Sun 9/276:10 am
PWM
- HOU
1 stop6h 20m
Southwest
Tue 9/292:45 pm
HOU
- PWM
1 stop6h 20m
Southwest
Deal found 7/15![Southwest logo]()
$469
This Southwest deal was found by Cheapflights users on 7/16. 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.
Wed 12/235:20 am
PWM
- HOU
2 stops9h 05m
Southwest
Mon 1/47:20 am
HOU
- PWM
2 stops8h 10m
Southwest
Deal found 7/16![Southwest logo]()
$483
Last-minute flights from Portland to HoustonDiscover last-minute flight deals from Portland to Houston. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Houston. Data last updated July 19, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sat 7/255:35 am
PWM
- HOU
1 stop8h 50m
Southwest
Sat 8/221:35 pm
HOU
- PWM
1 stop6h 25m
Southwest
Deal found 7/18![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 7/15. 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.
Fri 7/315:35 am
PWM
- HOU
1 stop6h 05m
Southwest
Sun 8/25:35 am
HOU
- PWM
1 stop10h 25m
Southwest
Deal found 7/15![Southwest logo]()
$424
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/56:09 pm
PWM
- IAH
1 stop6h 49m
American Airlines
Fri 8/712:24 pm
IAH
- PWM
1 stop7h 57m
American Airlines
Deal found 7/15![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 7/18. 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 8/76:30 am
PWM
- IAH
1 stop8h 02m
Delta
Tue 8/112:37 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 7/18![Delta logo]()
$384
This American Airlines deal was found by Cheapflights users on 7/17. 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 8/76:02 am
PWM
- IAH
1 stop5h 42m
American Airlines
Fri 8/144:50 pm
IAH
- PWM
1 stop5h 57m
American Airlines
Deal found 7/17![American Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 7/18. 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.
Sat 8/156:00 am
PWM
- IAH
2 stops8h 27m
Delta
Sat 8/2212:12 pm
IAH
- PWM
1 stop8h 19m
Delta
Deal found 7/18![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sat 8/155:40 am
PWM
- HOU
1 stop7h 15m
Southwest
Sat 8/221:35 pm
HOU
- PWM
1 stop6h 25m
Southwest
Deal found 7/18![Southwest logo]()
$469
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
PWM
- IAH
1 stop6h 01m
JetBlue
Wed 8/197:24 am
IAH
- PWM
2 stops16h 01m
JetBlue
Deal found 7/16![JetBlue logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 stop23h 10m
Multiple Airlines
Mon 8/243:25 pm
IAH
- PWM
2 stops28h 54m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 7/14. 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.
Fri 8/2110:30 am
PWM
- HOU
1 stop8h 15m
Southwest
Mon 8/246:10 am
HOU
- PWM
1 stop7h 50m
Southwest
Deal found 7/14![Southwest logo]()
$349
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/288:00 am
PWM
- IAH
1 stop8h 31m
American Airlines
Mon 8/3110:26 am
IAH
- PWM
1 stop7h 26m
American Airlines
Deal found 7/15![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/17. 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 8/2811:01 am
PWM
- IAH
2 stops11h 20m
Delta
Mon 8/312:37 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 7/17![Delta logo]()
$354
One-way flights from Portland to HoustonSearch for one-way flight options from Portland to Houston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from Portland to Houston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This JetBlue deal was found by Cheapflights users on 7/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
PWM
- IAH
1 stop6h 01m
JetBlue
Deal found 7/15![JetBlue logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/18. 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.
Mon 9/289:48 am
PWM
- IAH
1 stop12h 12m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$156
This Delta deal was found by Cheapflights users on 7/14. 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 8/206:05 am
PWM
- IAH
1 stop6h 10m
Delta
Deal found 7/14![Delta logo]()
$175
This Delta deal was found by Cheapflights users on 7/16. 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 8/206:05 am
PWM
- HOU
1 stop7h 11m
Delta
Deal found 7/16![Delta logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Sun 8/237:00 am
PWM
- IAH
2 stops26h 02m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$183
This JetBlue deal was found by Cheapflights users on 7/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
PWM
- IAH
1 stop6h 00m
JetBlue
Deal found 7/14![JetBlue logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Thu 8/207:00 am
PWM
- IAH
2 stops50h 02m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$194
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Thu 8/65:30 am
PWM
- IAH
1 stop7h 04m
American Airlines
Deal found 7/16![American Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/285:30 am
PWM
- IAH
2 stops8h 49m
American Airlines
Deal found 7/15![American Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 7/18. 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.
Mon 9/285:55 am
PWM
- HOU
2 stops9h 05m
Southwest
Deal found 7/18![Southwest logo]()
$214
This Southwest deal was found by Cheapflights users on 7/14. 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.
Fri 11/201:40 pm
PWM
- HOU
2 stops7h 55m
Southwest
Deal found 7/14![Southwest logo]()
$235
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sat 7/255:35 am
PWM
- HOU
1 stop8h 50m
Southwest
Deal found 7/18![Southwest logo]()
$270
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 July 19, 2026.
Round-trip from | $335 (Kiwi.com) |
|---|---|
One-way from | $143 (JetBlue) |
Popular in | September |
Cheapest in | January |
Average price | $532 |
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 July 19, 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
Cheapest round-trip
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
$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
Thu 9/3
6:00 am-5:40 pm
2 stops12h 40m
Houston George Bush Intcntl
Sun 9/6
5:41 am-1:07 pm
1 stop6h 26m
$354
PortlandHouston
PWM - HOU
PWMHOU
Portland
Sat 8/29
5:40 am-1:55 pm
2 stops9h 15m
Houston Hobby
Sat 9/5
10:30 am-9:00 pm
2 stops9h 30m
$359
PortlandHouston
PWM - HOU
PWMHOU
Portland
Fri 8/21
10:30 am-5:10 pm
2 stops7h 40m
Houston Hobby
Mon 8/24
2:20 pm-10:25 pm
2 stops7h 05m
$359
PortlandHouston
PWM - IAH
PWMIAH
Portland
Fri 8/28
6:00 am-5:40 pm
2 stops12h 40m
Houston George Bush Intcntl
Mon 8/31
11:28 am-11:13 pm
2 stops10h 45m
$359
PortlandHouston
PWM - HOU
PWMHOU
Portland
Sun 9/27
6:10 am-11:30 am
1 stop6h 20m
Houston Hobby
Tue 9/29
2:45 pm-10:05 pm
1 stop6h 20m
$469
PortlandHouston
PWM - HOU
PWMHOU
Portland
Wed 12/23
5:20 am-1:25 pm
2 stops9h 05m
Houston Hobby
Mon 1/4
7:20 am-4:30 pm
2 stops8h 10m
$483
Cheapest one-way
PortlandHouston
PWM - IAH
PWMIAH
Portland
Thu 8/20
6:00 am-11:01 am
1 stop6h 01m
$143
PortlandHouston
PWM - IAH
PWMIAH
Portland
Thu 8/20
6:05 am-11:15 am
1 stop6h 10m
$175
Showing 1-10 of 22 resultsSorted by cheapest first
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.
PWM-HO1
PWM-IAH
PWM-HOU
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
PWM-HO1
PWM-IAH
PWM-HOU
What is the cheapest month to book a flight from Portland, Maine to Houston?
Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Houston (average of $355). Flying from Portland, Maine to Houston in July is currently the most expensive (average of $532). 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 July 19, 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?
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 July 19, 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.
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portland to Houston
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Houston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Houston by cabin class
Find flights from Portland to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Houston flights
Browse other Portland and Houston flight options. Last updated on July 19, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on July 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$159 | Average$373 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$251 | Average$424 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$254 | Average$408 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$272 | Average$532 | FlexibilityNo cancel fee | On-time63% |