$128+ Cheap flights from George Bush Intcntl (IAH) to Portland, ME (PWM)
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — PWM
Jun 8 — Jun 151
Round-trip
1 adult, Economy
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Cheapest flights from George Bush Intcntl to PortlandExplore the most affordable flight options available from George Bush Intcntl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
Explore the most affordable flight options available from George Bush Intcntl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:14 pm
IAH
- PWM
1 stop20h 13m
Multiple Airlines
Tue 8/184:44 pm
PWM
- IAH
2 stops31h 04m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 9/17:04 pm
IAH
- PWM
1 stop14h 23m
Multiple Airlines
Tue 9/88:00 am
PWM
- IAH
2 stops32h 44m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 5/9. 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 7/293:06 pm
IAH
- PWM
1 stop6h 31m
American Airlines
Wed 8/56:00 am
PWM
- IAH
1 stop6h 24m
American Airlines
Deal found 5/9![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 5/9. 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 7/2912:09 pm
IAH
- PWM
2 stops11h 50m
Delta
Wed 8/56:05 am
PWM
- IAH
1 stop8h 22m
Delta
Deal found 5/9![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 5/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:47 pm
IAH
- PWM
1 stop8h 12m
United Airlines
Sat 9/53:30 pm
PWM
- IAH
Nonstop4h 40m
United Airlines
Deal found 5/5![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Mon 6/14:56 pm
IAH
- PWM
1 stop6h 39m
American Airlines
Sat 6/65:10 am
PWM
- IAH
2 stops9h 07m
American Airlines
Deal found 5/8![American Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 5/6. 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.
Thu 9/1010:14 am
IAH
- PWM
1 stop5h 41m
American Airlines
Mon 9/146:00 am
PWM
- IAH
1 stop6h 24m
American Airlines
Deal found 5/6![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 5/5. 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.
Tue 5/195:20 am
IAH
- PWM
1 stop5h 35m
Delta
Wed 5/272:05 pm
PWM
- IAH
1 stop8h 20m
Delta
Deal found 5/5![Delta logo]()
$384
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/53:04 pm
IAH
- PWM
1 stop6h 42m
American Airlines
Fri 6/122:24 pm
PWM
- IAH
2 stops9h 04m
American Airlines
Deal found 5/5![American Airlines logo]()
$388
Best flights from George Bush Intcntl to PortlandDiscover carefully curated flight deals from George Bush Intcntl to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
Discover carefully curated flight deals from George Bush Intcntl to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
This United Airlines deal was found by Cheapflights users on 5/4. 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 9/17:20 am
IAH
- PWM
1 stop6h 08m
United Airlines
Tue 9/85:05 pm
PWM
- IAH
1 stop8h 17m
United Airlines
Deal found 5/4![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 5/4. 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.
Mon 9/141:15 pm
IAH
- PWM
2 stops8h 56m
Delta
Sat 9/196:00 am
PWM
- IAH
2 stops11h 28m
Delta
Deal found 5/4![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 7/2912:09 pm
IAH
- PWM
2 stops11h 50m
Delta
Wed 8/56:05 am
PWM
- IAH
2 stops13h 27m
Delta
Deal found 5/5![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:24 am
IAH
- PWM
1 stop6h 02m
United Airlines
Sat 5/305:03 pm
PWM
- IAH
1 stop7h 01m
United Airlines
Deal found 5/8![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 6/102:43 pm
IAH
- PWM
2 stops9h 09m
Delta
Wed 6/171:12 pm
PWM
- IAH
2 stops9h 22m
Delta
Deal found 5/5![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 5/4. 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 5/192:20 pm
IAH
- PWM
2 stops9h 23m
Delta
Tue 6/96:00 am
PWM
- IAH
2 stops10h 25m
Delta
Deal found 5/4![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 5/5. 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.
Tue 6/305:40 am
IAH
- PWM
2 stops10h 20m
Delta
Wed 7/86:25 am
PWM
- IAH
2 stops10h 48m
Delta
Deal found 5/5![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 5/4. 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 5/2310:45 am
IAH
- PWM
2 stops11h 24m
Delta
Sat 5/306:02 am
PWM
- IAH
2 stops11h 14m
Delta
Deal found 5/4![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:43 pm
IAH
- PWM
2 stops9h 09m
Delta
Thu 6/186:00 am
PWM
- IAH
1 stop6h 23m
Delta
Deal found 5/7![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 5/8. 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 9/301:15 pm
IAH
- PWM
1 stop8h 18m
Delta
Sun 10/46:00 am
PWM
- IAH
1 stop7h 07m
Delta
Deal found 5/8![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 8/282:37 pm
IAH
- PWM
1 stop7h 43m
Delta
Mon 8/316:00 am
PWM
- IAH
1 stop7h 07m
Delta
Deal found 5/8![Delta logo]()
$434
Last-minute flights from George Bush Intcntl to PortlandDiscover last-minute flight deals from George Bush Intcntl to Portland. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Portland. Data last updated May 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/5. 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.
Tue 5/195:20 am
IAH
- PWM
1 stop5h 35m
Delta
Wed 5/272:05 pm
PWM
- IAH
1 stop8h 20m
Delta
Deal found 5/5![Delta logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/199:55 am
IAH
- PWM
1 stop23h 32m
Multiple Airlines
Sat 5/235:01 pm
PWM
- IAH
2 stops39h 33m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/287:28 pm
IAH
- PWM
1 stop12h 44m
Multiple Airlines
Sun 5/317:56 pm
PWM
- IAH
2 stops39h 21m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Mon 6/14:56 pm
IAH
- PWM
1 stop6h 39m
American Airlines
Sat 6/610:42 am
PWM
- IAH
1 stop7h 05m
American Airlines
Deal found 5/8![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/14:31 pm
IAH
- PWM
1 stop6h 20m
American Airlines
Mon 6/86:54 pm
PWM
- IAH
1 stop6h 34m
American Airlines
Deal found 5/4![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:04 pm
IAH
- PWM
2 stops11h 39m
Delta
Tue 7/76:00 am
PWM
- IAH
1 stop6h 14m
Delta
Deal found 5/7![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/53:04 pm
IAH
- PWM
1 stop6h 42m
American Airlines
Fri 6/122:24 pm
PWM
- IAH
1 stop9h 04m
American Airlines
Deal found 5/5![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 5/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:04 pm
IAH
- PWM
2 stops11h 39m
Delta
Thu 6/186:00 am
PWM
- IAH
1 stop6h 23m
Delta
Deal found 5/6![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 5/9. 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 6/102:43 pm
IAH
- PWM
2 stops9h 09m
Delta
Thu 6/186:25 am
PWM
- IAH
2 stops9h 48m
Delta
Deal found 5/9![Delta logo]()
$359
One-way flights from George Bush Intcntl to PortlandSearch for one-way flight options from George Bush Intcntl to Portland. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
Search for one-way flight options from George Bush Intcntl to Portland. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:29 am
IAH
- PWM
2 stops11h 50m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
Tue 7/287:24 pm
IAH
- PWM
1 stop14h 03m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:04 pm
IAH
- PWM
2 stops25h 15m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:42 pm
IAH
- PWM
2 stops35h 30m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
Wed 7/298:55 pm
IAH
- PWM
2 stops35h 17m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$188
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:47 am
IAH
- PWM
1 stop7h 19m
American Airlines
Deal found 5/5![American Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:59 pm
IAH
- PWM
2 stops35h 28m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:36 am
IAH
- PWM
2 stops30h 22m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$202
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 6/102:43 pm
IAH
- PWM
2 stops9h 09m
Delta
Deal found 5/5![Delta logo]()
$205
Find flight deals from George Bush Intcntl to Portland
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Portland (PWM). 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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $305 (Kiwi.com) |
One-way from | $128 (Kiwi.com) |
Popular in | February |
Cheapest in | December |
Average price | $383 |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl to Portland 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 9, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Tue 9/1
7:20 am-2:28 pm
1 stop6h 08m
Portland
Tue 9/8
5:05 pm-12:22 am
1 stop8h 17m
$349
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Mon 9/14
1:15 pm-11:11 pm
2 stops8h 56m
Portland
Sat 9/19
6:00 am-4:28 pm
2 stops11h 28m
$359
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Wed 7/29
12:09 pm-12:59 am
2 stops11h 50m
Portland
Wed 8/5
6:05 am-6:32 pm
2 stops13h 27m
$359
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Wed 6/10
2:43 pm-12:52 am
2 stops9h 09m
Portland
Wed 6/17
1:12 pm-9:34 pm
2 stops9h 22m
$359
Quickest round-trip
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Wed 5/27
7:24 am-2:26 pm
1 stop6h 02m
Portland
Sat 5/30
5:03 pm-11:04 pm
1 stop7h 01m
$384
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Tue 5/19
2:20 pm-12:43 am
2 stops9h 23m
Portland
Tue 6/9
6:00 am-3:25 pm
2 stops10h 25m
$394
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Tue 6/30
5:40 am-5:00 pm
2 stops10h 20m
Portland
Wed 7/8
6:25 am-4:13 pm
2 stops10h 48m
$394
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Sat 5/23
10:45 am-11:09 pm
2 stops11h 24m
Portland
Sat 5/30
6:02 am-4:16 pm
2 stops11h 14m
$394
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Fri 6/12
2:43 pm-12:52 am
2 stops9h 09m
Portland
Thu 6/18
6:00 am-11:23 am
1 stop6h 23m
$399
HoustonPortland
IAH - PWM
IAHPWM
Houston George Bush Intcntl
Wed 9/30
1:15 pm-10:33 pm
1 stop8h 18m
Portland
Sun 10/4
6:00 am-12:07 pm
1 stop7h 07m
$424
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from George Bush Intcntl to Portland
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 George Bush Intcntl to Portland in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Portland, Maine 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 Houston George Bush Intcntl Airport-Portland, Maine 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 George Bush Intcntl to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from George Bush Intcntl with our price prediction graph.
IAH-PWM
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 Houston George Bush Intcntl Airport to Portland
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Portland, Maine?
Currently, December is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Portland, Maine (average of $308). Flying from Houston George Bush Intcntl Airport to Portland, Maine in February is currently the most expensive (average of $678). 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.
How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Portland, Maine?
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated May 9, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Houston George Bush Intcntl Airport to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
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Top 3 airlines flying from George Bush Intcntl to Portland
Discover the top 3 airlines that operate flights from George Bush Intcntl to Portland. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$373 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$258 | Average$522 | FlexibilityNo cancel fee | On-time69% |