$134+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — IAH
jul. 8 — jul. 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 junio 8, 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 junio 8, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/123:00 pm
PWM
- IAH
1 stop7h 38m
Delta
lun. 11/165:55 am
IAH
- PWM
1 stop5h 23m
Delta
Deal found 6/8![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/35:00 pm
PWM
- IAH
1 stop6h 59m
United Airlines
sáb. 7/49:30 am
IAH
- PWM
Nonstop3h 56m
United Airlines
Deal found 6/5![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/195:30 am
PWM
- IAH
2 stops8h 49m
American Airlines
lun. 8/245:00 am
IAH
- PWM
2 stops8h 21m
American Airlines
Deal found 6/8![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/311:48 am
PWM
- IAH
2 stops11h 36m
Delta
sáb. 7/46:30 am
IAH
- PWM
1 stop6h 11m
Delta
Deal found 6/5![Delta logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/219:52 am
PWM
- IAH
1 stop9h 17m
Multiple Airlines
dom. 8/238:02 pm
IAH
- PWM
2 stops25h 36m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/145:15 am
PWM
- IAH
1 stop6h 44m
United Airlines
mar. 7/216:10 am
IAH
- PWM
1 stop7h 21m
United Airlines
Deal found 6/7![United Airlines logo]()
$378
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/178:00 am
PWM
- IAH
1 stop8h 47m
American Airlines
sáb. 7/253:06 pm
IAH
- PWM
1 stop6h 41m
American Airlines
Deal found 6/7![American Airlines logo]()
$383
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 junio 8, 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 junio 8, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1211:25 am
PWM
- IAH
2 stops8h 34m
Delta
lun. 11/161:15 pm
IAH
- PWM
2 stops9h 34m
Delta
Deal found 6/8![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/36:00 am
PWM
- IAH
1 stop6h 51m
United Airlines
sáb. 7/46:10 am
IAH
- PWM
1 stop7h 21m
United Airlines
Deal found 6/5![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/125:41 am
PWM
- IAH
2 stops8h 52m
American Airlines
lun. 11/165:03 pm
IAH
- PWM
1 stop5h 35m
American Airlines
Deal found 6/6![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/153:00 pm
PWM
- IAH
1 stop7h 38m
Delta
lun. 10/192:10 pm
IAH
- PWM
1 stop7h 56m
Delta
Deal found 6/3![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/154:50 pm
PWM
- IAH
1 stop6h 14m
Delta
dom. 10/185:55 am
IAH
- PWM
1 stop5h 23m
Delta
Deal found 6/3![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 6/4. 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.
mié. 7/226:00 am
PWM
- IAH
2 stops12h 39m
Delta
sáb. 8/812:12 pm
IAH
- PWM
1 stop8h 19m
Delta
Deal found 6/4![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/74:50 pm
PWM
- IAH
1 stop6h 14m
Delta
dom. 11/155:55 am
IAH
- PWM
1 stop5h 23m
Delta
Deal found 6/6![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/156:59 pm
PWM
- IAH
1 stop5h 58m
Delta
mié. 7/223:27 pm
IAH
- PWM
2 stops8h 32m
Delta
Deal found 6/7![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/36:57 pm
PWM
- IAH
1 stop5h 59m
Delta
mié. 7/83:27 pm
IAH
- PWM
2 stops8h 32m
Delta
Deal found 6/7![Delta logo]()
$364
Last-minute flights from Portland to George Bush IntcntlDiscover last-minute flight deals from Portland to George Bush Intcntl. Data last updated junio 8, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to George Bush Intcntl. Data last updated junio 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/273:30 pm
PWM
- IAH
Nonstop4h 30m
United Airlines
sáb. 7/251:46 pm
IAH
- PWM
1 stop8h 44m
United Airlines
Deal found 6/7![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 6/4. 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.
jue. 7/26:57 pm
PWM
- IAH
1 stop5h 59m
Delta
mié. 7/83:27 pm
IAH
- PWM
2 stops8h 32m
Delta
Deal found 6/4![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/35:00 pm
PWM
- IAH
1 stop6h 59m
United Airlines
sáb. 7/49:30 am
IAH
- PWM
Nonstop3h 56m
United Airlines
Deal found 6/5![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 6/4. 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.
vie. 7/311:48 am
PWM
- IAH
2 stops13h 08m
Delta
mié. 7/83:27 pm
IAH
- PWM
2 stops8h 32m
Delta
Deal found 6/4![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/311:48 am
PWM
- IAH
2 stops11h 36m
Delta
sáb. 7/46:30 am
IAH
- PWM
1 stop6h 11m
Delta
Deal found 6/5![Delta logo]()
$364
This Expedia deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/136:00 am
PWM
- IAH
2 stops18h 02m
JetBlue
mié. 7/151:00 pm
IAH
- PWM
2 stops10h 16m
JetBlue
Deal found 6/5![JetBlue logo]()
$406
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/145:15 am
PWM
- IAH
1 stop6h 44m
United Airlines
mar. 7/216:10 am
IAH
- PWM
1 stop7h 21m
United Airlines
Deal found 6/7![United Airlines logo]()
$378
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/147:16 am
PWM
- IAH
1 stop7h 56m
American Airlines
mar. 7/215:02 am
IAH
- PWM
2 stops8h 14m
American Airlines
Deal found 6/7![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/178:00 am
PWM
- IAH
1 stop8h 47m
American Airlines
sáb. 7/253:06 pm
IAH
- PWM
1 stop6h 41m
American Airlines
Deal found 6/7![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 6/4. 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.
mié. 7/226:25 am
PWM
- IAH
2 stops12h 14m
Delta
sáb. 8/82:37 pm
IAH
- PWM
2 stops9h 22m
Delta
Deal found 6/4![Delta logo]()
$394
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 junio 8, 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 junio 8, 2026.
This JetBlue deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/286:00 am
PWM
- IAH
1 stop5h 59m
JetBlue
Deal found 6/8![JetBlue logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/304:44 pm
PWM
- IAH
2 stops39h 39m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$183
This JetBlue deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/266:00 am
PWM
- IAH
1 stop6h 01m
JetBlue
Deal found 6/6![JetBlue logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
vie. 7/247:00 am
PWM
- IAH
2 stops28h 03m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/287:00 am
PWM
- IAH
2 stops16h 48m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
mié. 8/1211:07 am
PWM
- IAH
1 stop8h 18m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/287:56 pm
PWM
- IAH
2 stops39h 11m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/175:09 pm
PWM
- IAH
2 stops22h 56m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$202
This American Airlines deal was found by Cheapflights users on 6/4. 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.
vie. 8/283:06 pm
PWM
- IAH
1 stop8h 34m
American Airlines
Deal found 6/4![American Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
vie. 8/77:00 am
PWM
- IAH
2 stops25h 20m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/268:22 pm
PWM
- IAH
2 stops35h 58m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$221
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 junio 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (Delta) |
One-way from | $134 (JetBlue) |
Popular in | December |
Cheapest in | July |
Average price | $461 |
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 junio 8, 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 - IAH
PWMIAH
Portland
jue. 11/12
11:25 am-6:59 pm
2 stops8h 34m
Houston George Bush Intcntl
lun. 11/16
1:15 pm-11:49 pm
2 stops9h 34m
$291
PortlandHouston
PWM - IAH
PWMIAH
Portland
vie. 7/3
6:00 am-11:51 am
1 stop6h 51m
Houston George Bush Intcntl
sáb. 7/4
6:10 am-2:31 pm
1 stop7h 21m
$349
PortlandHouston
PWM - IAH
PWMIAH
Portland
jue. 10/15
3:00 pm-9:38 pm
1 stop7h 38m
Houston George Bush Intcntl
lun. 10/19
2:10 pm-11:06 pm
1 stop7h 56m
$349
Quickest round-trip
PortlandHouston
PWM - IAH
PWMIAH
Portland
jue. 10/15
4:50 pm-10:04 pm
1 stop6h 14m
Houston George Bush Intcntl
dom. 10/18
5:55 am-12:18 pm
1 stop5h 23m
$349
PortlandHouston
PWM - IAH
PWMIAH
Portland
jue. 11/12
5:41 am-1:33 pm
2 stops8h 52m
Houston George Bush Intcntl
lun. 11/16
5:03 pm-11:38 pm
1 stop5h 35m
$354
PortlandHouston
PWM - IAH
PWMIAH
Portland
mié. 7/22
6:00 am-5:39 pm
2 stops12h 39m
Houston George Bush Intcntl
sáb. 8/8
12:12 pm-9:31 pm
1 stop8h 19m
$354
PortlandHouston
PWM - IAH
PWMIAH
Portland
sáb. 11/7
4:50 pm-10:04 pm
1 stop6h 14m
Houston George Bush Intcntl
dom. 11/15
5:55 am-12:18 pm
1 stop5h 23m
$359
PortlandHouston
PWM - IAH
PWMIAH
Portland
mié. 7/15
6:59 pm-11:57 pm
1 stop5h 58m
Houston George Bush Intcntl
mié. 7/22
3:27 pm-12:59 am
2 stops8h 32m
$364
PortlandHouston
PWM - IAH
PWMIAH
Portland
vie. 7/3
6:57 pm-11:56 pm
1 stop5h 59m
Houston George Bush Intcntl
mié. 7/8
3:27 pm-12:59 am
2 stops8h 32m
$364
Cheapest one-way
Quickest one-way
PortlandHouston
PWM - IAH
PWMIAH
Portland
dom. 8/16
6:00 am-10:59 am
1 stop5h 59m
$134
Showing 1-10 of 18 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 June.
| 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 |
- 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
Prices
Airlines
What is the cheapest month to book a flight from Portland, Maine to Houston George Bush Intcntl Airport?
Currently, July is the cheapest month in which you can book a flight from Portland, Maine to Houston George Bush Intcntl Airport (average of $285). Flying from Portland, Maine to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $616). 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 IAH?
Find hourly flight availability from Portland to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 8, 2026.
When flying from Portland, Maine to Houston George Bush Intcntl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 junio 8, 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.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
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
Spring
The Woodlands
Jersey Village
Humble
Conroe
Tomball
Cypress
Montgomery
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
George Bush Intcntl flight routes
Other flight options
Other flights from Portland
Popular flights
Alternative routes for Portland to George Bush Intcntl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to George Bush Intcntl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to George Bush Intcntl by cabin class
Find flights from Portland to George Bush Intcntl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 junio 8, 2026.
Portland and George Bush Intcntl flights
Browse other Portland and George Bush Intcntl flight options. Last updated on junio 8, 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 junio 8, 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 junio 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$251 | Average$368 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$308 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$436 | FlexibilityNo cancel fee | On-time69% |