$190+ Cheap flights from Portland, ME (PWM) to George Bush Intcntl (IAH)
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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — IAH
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from Portland to George Bush Intcntl 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 George Bush Intcntl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to George Bush IntcntlExplore the most affordable flight options available from Portland to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from Portland to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/512:24 pm -
1 stop7h 25m
Mon 9/711:28 am -
1 stop6h 24m
Deal found 8/13![American Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 8/13. 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 11/1211:40 am -
2 stops11h 31m
Mon 11/1611:00 am -
2 stops11h 21m
Deal found 8/13![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Fri 9/116:00 am -
2 stops26h 17m
Fri 9/188:25 pm -
1 stop13h 03m
Deal found 8/14![Multiple Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 8/13. 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 12/912:50 pm -
2 stops8h 27m
Mon 12/142:10 pm -
1 stop8h 11m
Deal found 8/13![Delta logo]()
$308
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/115:30 am -
2 stops8h 47m
Fri 9/184:44 pm -
1 stop6h 01m
Deal found 8/13![American Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Fri 10/27:00 am -
2 stops16h 30m
Mon 10/510:11 am -
1 stop29h 13m
Deal found 8/14![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Tue 9/225:09 pm -
2 stops29h 05m
Tue 9/294:21 pm -
1 stop15h 47m
Deal found 8/16![Multiple Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/275:50 am -
1 stop7h 17m
Wed 10/281:54 pm -
1 stop8h 27m
Deal found 8/12![United Airlines logo]()
$342
Best flights from Portland to George Bush IntcntlDiscover carefully curated flight deals from Portland to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from Portland to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This Delta deal was found by Cheapflights users on 8/13. 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 11/1211:40 am -
1 stop6h 44m
Mon 11/1611:00 am -
2 stops11h 21m
Deal found 8/13![Delta logo]()
$252
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/275:50 am -
1 stop7h 17m
Wed 10/281:54 pm -
1 stop8h 27m
Deal found 8/12![United Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 8/13. 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 11/35:50 am -
1 stop8h 38m
Sat 11/77:20 am -
1 stop5h 56m
Deal found 8/13![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 12/114:40 pm -
2 stops8h 19m
Sun 12/135:10 am -
2 stops10h 35m
Deal found 8/14![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 8/15. 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.
Wed 11/116:27 am -
1 stop8h 10m
Sat 11/145:39 am -
1 stop6h 24m
Deal found 8/15![Delta logo]()
$379
Last-minute flights from Portland to George Bush IntcntlDiscover last-minute flight deals from Portland to George Bush Intcntl. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to George Bush Intcntl. Data last updated August 18, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/13. 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 -
1 stop8h 31m
Mon 8/3110:26 am -
1 stop7h 26m
Deal found 8/13![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 8/13. 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 8/286:30 am -
2 stops10h 12m
Mon 8/3112:12 pm -
2 stops10h 18m
Deal found 8/13![Delta logo]()
$380
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:00 am -
1 stop6h 19m
Mon 9/71:16 pm -
1 stop8h 32m
Deal found 8/14![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/512:24 pm -
1 stop7h 25m
Mon 9/711:28 am -
1 stop6h 24m
Deal found 8/13![American Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Fri 9/116:00 am -
2 stops26h 17m
Fri 9/188:25 pm -
1 stop13h 03m
Deal found 8/14![Multiple Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/115:30 am -
2 stops8h 47m
Fri 9/184:44 pm -
1 stop6h 01m
Deal found 8/13![American Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Tue 9/225:09 pm -
2 stops29h 05m
Tue 9/294:21 pm -
1 stop15h 47m
Deal found 8/16![Multiple Airlines logo]()
$332
One-way flights from Portland to George Bush IntcntlSearch for one-way flight options from Portland to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from Portland to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:03 am -
1 stop6h 36m
Deal found 8/16![United Airlines logo]()
$190
This American Airlines deal was found by Cheapflights users on 8/16. 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 1/215:35 am -
2 stops11h 12m
Deal found 8/16![American Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 8/278:22 pm -
2 stops35h 58m
Deal found 8/13![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Sat 9/265:09 pm -
2 stops39h 08m
Deal found 8/16![Multiple Airlines logo]()
$212
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:09 pm -
1 stop6h 49m
Deal found 8/13![American Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 8/13. 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 8/283:06 pm -
1 stop8h 34m
Deal found 8/13![American Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Sat 8/2911:07 am -
2 stops12h 07m
Deal found 8/16![Multiple Airlines logo]()
$228
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 8/2811:01 am -
2 stops13h 51m
Deal found 8/14![Delta logo]()
$230
This deal was found by Cheapflights users on 8/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:08 pm -
1 stop8h 21m
Deal found 8/16![United Airlines logo]()
$240
Find flight deals from Portland to George Bush Intcntl
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to George Bush Intcntl (IAH). 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 August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (American Airlines) |
One-way from | $190 (United Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $563 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to George Bush Intcntl 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 August 18, 2026.
Use the filters below to find and compare flights from Portland to Houston George Bush Intcntl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Thu 11/12
11:40 am-5:24 pm
1 stop6h 44m
Houston George Bush Intcntl
Mon 11/16
11:00 am-11:21 pm
2 stops11h 21m
$252
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Tue 10/27
5:50 am-12:07 pm
1 stop7h 17m
Houston George Bush Intcntl
Wed 10/28
1:54 pm-11:21 pm
1 stop8h 27m
$342
Quickest round-trip
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Tue 11/3
5:50 am-1:28 pm
1 stop8h 38m
Houston George Bush Intcntl
Sat 11/7
7:20 am-2:16 pm
1 stop5h 56m
$347
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Fri 12/11
4:40 pm-11:59 pm
2 stops8h 19m
Houston George Bush Intcntl
Sun 12/13
5:10 am-4:45 pm
2 stops10h 35m
$356
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Wed 11/11
6:27 am-1:37 pm
1 stop8h 10m
Houston George Bush Intcntl
Sat 11/14
5:39 am-1:03 pm
1 stop6h 24m
$379
Cheapest one-way
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Sat 9/26
8:03 am-1:39 pm
1 stop6h 36m
$190
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Thu 1/21
11:25 am-4:59 pm
1 stop6h 34m
$190
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Thu 8/27
8:22 pm-7:20 am
2 stops35h 58m
$206
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Thu 8/27
6:09 pm-11:58 pm
1 stop6h 49m
$217
PortlandHouston
PWM Portland - IAH Houston George Bush Intcntl
PWMIAH
Portland
Fri 8/28
3:06 pm-10:40 pm
1 stop8h 34m
$225
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Portland to George Bush Intcntl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to George Bush Intcntl in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Portland, Maine-Houston George Bush Intcntl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Houston George Bush Intcntl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to George Bush Intcntl
Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Portland with our price prediction graph.
PWM-IAH
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 George Bush Intcntl Airport
Reviews of airlines servicing George Bush Intcntl
Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated August 18, 2026.
Read through reviews of airlines operating flights from Portland to Houston George Bush Intcntl Airport, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Portland to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Houston George Bush Intcntl Airport?
Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locationsKaty
Conroe
The Woodlands
Spring
Humble
Jersey Village
Tomball
Montgomery
Cypress
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Other flights to George Bush Intcntl
Explore flights to George Bush Intcntl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
Portland and George Bush Intcntl flights
Browse other Portland and George Bush Intcntl flight options. Last updated on August 18, 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 August 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Portland to George Bush Intcntl
Discover the top 3 airlines that operate flights from Portland to George Bush Intcntl. 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 August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$418 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$284 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$474 | FlexibilityNo cancel fee | On-time69% |