$168+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HOU
Jun 28 — Jul 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Houston
Cheapest
Best
Last-minute
One-way
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 May 29, 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 May 29, 2026.
This Southwest deal was found by Cheapflights users on 5/28. 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 9/167:45 am
PWM
- HOU
1 stop6h 15m
Southwest
Fri 9/182:20 pm
HOU
- PWM
1 stop6h 10m
Southwest
Deal found 5/28![Southwest logo]()
$323
This Delta deal was found by Cheapflights users on 5/27. 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 7/171:12 pm
PWM
- IAH
1 stop9h 32m
Delta
Fri 7/242:38 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/27![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 5/27. 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 8/245:55 am
PWM
- HOU
1 stop7h 30m
Southwest
Tue 8/257:20 am
HOU
- PWM
1 stop5h 55m
Southwest
Deal found 5/27![Southwest logo]()
$349
This Delta deal was found by Cheapflights users on 5/27. 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
- IAH
1 stop8h 35m
Delta
Mon 11/1611:50 am
IAH
- PWM
2 stops10h 16m
Delta
Deal found 5/27![Delta logo]()
$354
This Southwest deal was found by Cheapflights users on 5/28. 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 7/157:10 pm
PWM
- HOU
1 stop5h 35m
Southwest
Sat 7/2510:15 am
HOU
- PWM
1 stop9h 50m
Southwest
Deal found 5/28![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 5/26. 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 6/167:16 pm
PWM
- IAH
1 stop6h 29m
United Airlines
Sat 6/202:43 pm
IAH
- PWM
1 stop7h 47m
United Airlines
Deal found 5/26![United Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 8/247:00 am
PWM
- IAH
2 stops25h 19m
Multiple Airlines
Tue 8/257:04 pm
IAH
- PWM
1 stop14h 23m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 5/28. 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 5/28![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 5/28. 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 10/156:00 am
PWM
- IAH
1 stop7h 20m
Delta
Sun 10/181:15 pm
IAH
- PWM
1 stop8h 08m
Delta
Deal found 5/28![Delta logo]()
$384
This American Airlines deal was found by Cheapflights users on 5/26. 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 7/32:56 pm
PWM
- IAH
2 stops8h 28m
American Airlines
Wed 7/83:06 pm
IAH
- PWM
1 stop6h 30m
American Airlines
Deal found 5/26![American Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 5/28. 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 7/171:12 pm
PWM
- IAH
2 stops11h 45m
Delta
Sat 7/252:38 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/28![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/27. 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 6/175:17 pm
PWM
- IAH
1 stop6h 22m
American Airlines
Fri 6/194:57 pm
IAH
- PWM
1 stop6h 45m
American Airlines
Deal found 5/27![American Airlines logo]()
$417
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 May 29, 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 May 29, 2026.
This Delta deal was found by Cheapflights users on 5/25. 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 7/171:12 pm
PWM
- IAH
1 stop9h 32m
Delta
Sat 7/252:38 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/25![Delta logo]()
$349
This American Airlines deal was found by Cheapflights users on 5/24. 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 11/125:41 am
PWM
- IAH
2 stops8h 52m
American Airlines
Mon 11/165:03 pm
IAH
- PWM
1 stop5h 35m
American Airlines
Deal found 5/24![American Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 5/26. 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.
Thu 10/155:30 am
PWM
- HOU
1 stop7h 35m
Southwest
Sun 10/188:30 am
HOU
- PWM
1 stop5h 25m
Southwest
Deal found 5/26![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 5/24. 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 7/171:12 pm
PWM
- IAH
1 stop9h 32m
Delta
Fri 7/242:38 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/24![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 5/27. 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.
Tue 8/116:30 am
PWM
- IAH
1 stop8h 02m
Delta
Tue 8/1812:12 pm
IAH
- PWM
2 stops10h 18m
Delta
Deal found 5/27![Delta logo]()
$354
This Southwest deal was found by Cheapflights users on 5/25. 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.
Thu 10/1510:30 am
PWM
- HOU
2 stops8h 25m
Southwest
Mon 10/197:30 am
HOU
- PWM
1 stop6h 15m
Southwest
Deal found 5/25![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 5/24. 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 7/86:25 am
PWM
- IAH
2 stops10h 48m
Delta
Wed 7/152:38 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/24![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 5/26. 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 9/36:05 am
PWM
- IAH
2 stops12h 35m
Delta
Mon 9/72:37 pm
IAH
- PWM
1 stop7h 36m
Delta
Deal found 5/26![Delta logo]()
$354
This Southwest deal was found by Cheapflights users on 5/27. 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.
Thu 6/115:20 pm
PWM
- HOU
2 stops7h 45m
Southwest
Mon 6/158:35 pm
HOU
- PWM
1 stop12h 20m
Southwest
Deal found 5/27![Southwest logo]()
$430
This Delta deal was found by Cheapflights users on 5/25. 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 11/126:30 am
PWM
- IAH
2 stops11h 05m
Delta
Mon 11/1611:50 am
IAH
- PWM
2 stops10h 16m
Delta
Deal found 5/25![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 5/25. 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 6/91:05 pm
PWM
- HOU
2 stops8h 25m
Southwest
Sat 6/131:20 pm
HOU
- PWM
2 stops9h 20m
Southwest
Deal found 5/25![Southwest logo]()
$459
This Delta deal was found by Cheapflights users on 5/25. 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.
Tue 6/96:00 am
PWM
- HOU
1 stop7h 12m
Delta
Sat 6/1310:16 am
HOU
- PWM
1 stop6h 40m
Delta
Deal found 5/25![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 5/24. 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 11/161:00 pm
HOU
- PWM
1 stop8h 23m
Delta
Deal found 5/24![Delta logo]()
$424
Last-minute flights from Portland to HoustonDiscover last-minute flight deals from Portland to Houston. Data last updated May 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Houston. Data last updated May 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Wed 6/35:15 am
PWM
- IAH
1 stop6h 44m
United Airlines
Sun 6/76:10 am
IAH
- PWM
1 stop7h 19m
United Airlines
Deal found 5/24![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Thu 6/46:00 am
PWM
- IAH
1 stop8h 30m
United Airlines
Sun 6/77:24 am
IAH
- PWM
1 stop6h 05m
United Airlines
Deal found 5/24![United Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 5/25. 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.
Tue 6/96:00 am
PWM
- HOU
1 stop7h 12m
Delta
Sat 6/1310:16 am
HOU
- PWM
1 stop6h 40m
Delta
Deal found 5/25![Delta logo]()
$419
This Southwest deal was found by Cheapflights users on 5/25. 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 6/91:05 pm
PWM
- HOU
2 stops8h 25m
Southwest
Sat 6/131:20 pm
HOU
- PWM
2 stops9h 20m
Southwest
Deal found 5/25![Southwest logo]()
$459
This Southwest deal was found by Cheapflights users on 5/28. 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.
Thu 6/1110:25 am
PWM
- HOU
1 stop5h 50m
Southwest
Sun 6/148:35 pm
HOU
- PWM
1 stop12h 10m
Southwest
Deal found 5/28![Southwest logo]()
$424
This United Airlines deal was found by Cheapflights users on 5/26. 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 6/167:16 pm
PWM
- IAH
1 stop6h 29m
United Airlines
Sat 6/202:43 pm
IAH
- PWM
1 stop7h 47m
United Airlines
Deal found 5/26![United Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 5/28. 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.
Tue 6/166:57 pm
PWM
- IAH
1 stop5h 59m
Delta
Tue 6/232:43 pm
IAH
- PWM
2 stops9h 09m
Delta
Deal found 5/28![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Tue 6/167:58 am
PWM
- IAH
1 stop8h 48m
American Airlines
Fri 6/194:57 pm
IAH
- PWM
1 stop6h 45m
American Airlines
Deal found 5/26![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 5/27. 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 6/175:17 pm
PWM
- IAH
1 stop6h 22m
American Airlines
Fri 6/194:57 pm
IAH
- PWM
1 stop6h 45m
American Airlines
Deal found 5/27![American Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 5/27. 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 6/177:30 am
PWM
- HOU
1 stop6h 25m
Southwest
Fri 6/1911:50 am
HOU
- PWM
1 stop11h 15m
Southwest
Deal found 5/27![Southwest logo]()
$453
This United Airlines deal was found by Cheapflights users on 5/28. 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 6/206:00 am
PWM
- IAH
1 stop6h 51m
United Airlines
Sat 6/272:43 pm
IAH
- PWM
1 stop7h 47m
United Airlines
Deal found 5/28![United Airlines logo]()
$476
This American Airlines deal was found by Cheapflights users on 5/26. 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 6/246:09 am
PWM
- IAH
1 stop7h 31m
American Airlines
Wed 7/11:30 pm
IAH
- PWM
1 stop10h 12m
American Airlines
Deal found 5/26![American Airlines logo]()
$458
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 May 29, 2026.
Search for one-way flight options from Portland to Houston. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Tue 8/258:00 am
PWM
- IAH
2 stops31h 51m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$168
This Southwest deal was found by Cheapflights users on 5/28. 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 8/245:55 am
PWM
- HOU
1 stop7h 30m
Southwest
Deal found 5/28![Southwest logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 7/111:07 am
PWM
- IAH
1 stop8h 22m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Wed 6/176:00 am
PWM
- IAH
1 stop8h 30m
United Airlines
Deal found 5/24![United Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 5/28. 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.
Mon 8/248:00 am
PWM
- IAH
1 stop8h 31m
American Airlines
Deal found 5/28![American Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 5/24. 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 6/175:36 pm
PWM
- HOU
1 stop7h 23m
American Airlines
Deal found 5/24![American Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 5/26. 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.
Tue 6/306:00 am
PWM
- IAH
1 stop8h 38m
Delta
Deal found 5/26![Delta logo]()
$210
This Delta deal was found by Cheapflights users on 5/26. 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 7/16:00 am
PWM
- HOU
1 stop7h 12m
Delta
Deal found 5/26![Delta logo]()
$210
This American Airlines deal was found by Cheapflights users on 5/24. 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 6/179:29 am
PWM
- IAH
2 stops9h 35m
American Airlines
Deal found 5/24![American Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 5/24. 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 6/177:30 am
PWM
- HOU
2 stops7h 35m
Southwest
Deal found 5/24![Southwest logo]()
$214
This Delta deal was found by Cheapflights users on 5/26. 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 7/11:12 pm
PWM
- IAH
2 stops11h 44m
Delta
Deal found 5/26![Delta logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 8/247:00 am
PWM
- IAH
2 stops28h 07m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$227
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 May 29, 2026.
Round-trip from | $323 (Southwest) |
|---|---|
One-way from | $168 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $455 |
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 May 29, 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
PortlandHouston
PWM - IAH
PWMIAH
Portland
Fri 7/17
1:12 pm-9:44 pm
1 stop9h 32m
Houston George Bush Intcntl
Sat 7/25
2:38 pm-11:14 pm
1 stop7h 36m
$349
PortlandHouston
PWM - IAH
PWMIAH
Portland
Fri 7/17
1:12 pm-9:44 pm
1 stop9h 32m
Houston George Bush Intcntl
Fri 7/24
2:38 pm-11:14 pm
1 stop7h 36m
$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 - IAH
PWMIAH
Portland
Tue 8/11
6:30 am-1:32 pm
1 stop8h 02m
Houston George Bush Intcntl
Tue 8/18
12:12 pm-11:30 pm
2 stops10h 18m
$354
PortlandHouston
PWM - IAH
PWMIAH
Portland
Wed 7/8
6:25 am-4:13 pm
2 stops10h 48m
Houston George Bush Intcntl
Wed 7/15
2:38 pm-11:14 pm
1 stop7h 36m
$354
PortlandHouston
PWM - IAH
PWMIAH
Portland
Thu 9/3
6:05 am-5:40 pm
2 stops12h 35m
Houston George Bush Intcntl
Mon 9/7
2:37 pm-11:13 pm
1 stop7h 36m
$354
PortlandHouston
PWM - IAH
PWMIAH
Portland
Thu 11/12
6:30 am-4:35 pm
2 stops11h 05m
Houston George Bush Intcntl
Mon 11/16
11:50 am-11:06 pm
2 stops10h 16m
$359
Quickest round-trip
PortlandHouston
PWM - HOU
PWMHOU
Portland
Thu 10/15
5:30 am-12:05 pm
1 stop7h 35m
Houston Hobby
Sun 10/18
8:30 am-2:55 pm
1 stop5h 25m
$417
PortlandHouston
PWM - HOU
PWMHOU
Portland
Tue 6/9
6:00 am-12:12 pm
1 stop7h 12m
Houston Hobby
Sat 6/13
10:16 am-5:56 pm
1 stop6h 40m
$419
PortlandHouston
PWM - HOU
PWMHOU
Portland
Thu 10/15
10:30 am-5:55 pm
2 stops8h 25m
Houston Hobby
Mon 10/19
7:30 am-2:45 pm
1 stop6h 15m
$422
Showing 1-10 of 28 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, 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 May 29, 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 May 29, 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.
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Portland
Popular flights
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 May 29, 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 May 29, 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 May 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$325 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$171 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$254 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$529 | FlexibilityNo cancel fee | On-time63% |