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Cheap flights from Houston George Bush Intcntl Airport to Portland from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Portland departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Houston George Bush Intcntl Airport to Portland

Cheap round-trip flights

American Airlines Logo
6:18 am - 2:38 pmIAH-PWM
7h 20m1 stop
American Airlines Logo
5:21 pm - 10:55 pmPWM-IAH
6h 34m1 stop
$209American Airlines
Find Deal
vie., oct. 31 - mar., nov. 4
American Airlines Logo
5:00 am - 2:56 pmIAH-PWM
8h 56m2 stops
American Airlines Logo
5:21 pm - 10:55 pmPWM-IAH
6h 34m1 stop
$214American Airlines
Find Deal
vie., oct. 31 - mar., nov. 4
American Airlines Logo
6:30 am - 1:35 pmIAH-PWM
6h 05m1 stop
American Airlines Logo
5:12 pm - 11:19 pmPWM-IAH
7h 07m1 stop
$239American Airlines
Find Deal
lun., oct. 27 - sáb., nov. 1
American Airlines Logo
5:05 pm - 11:51 pmIAH-PWM
5h 46m1 stop
American Airlines Logo
1:42 pm - 10:07 pmPWM-IAH
9h 25m2 stops
$244American Airlines
Find Deal
lun., oct. 27 - sáb., nov. 1
Multiple Airlines Logo
8:37 pm - 9:06 amIAH-PWM
11h 29m1 stop
Multiple Airlines Logo
9:46 am - 9:33 amPWM-IAH
24h 47m1 stop
$299Multiple Airlines
Find Deal
jue., oct. 23 - lun., oct. 27
Multiple Airlines Logo
5:28 pm - 10:41 amIAH-PWM
16h 13m1 stop
Multiple Airlines Logo
3:15 pm - 7:03 pmPWM-IAH
28h 48m2 stops
$301Multiple Airlines
Find Deal
vie., oct. 31 - dom., nov. 2
United Airlines Logo
4:25 pm - 11:21 pmIAH-PWM
5h 56m1 stop
United Airlines Logo
5:45 am - 1:40 pmPWM-IAH
8h 55m1 stop
$309United Airlines
Find Deal
mié., feb. 18 - mar., feb. 24
Delta Logo
8:00 am - 11:05 pmIAH-PWM
14h 05m1 stop
Delta Logo
6:00 am - 1:53 pmPWM-IAH
8h 53m1 stop
$356Delta
Find Deal
dom., feb. 15 - jue., feb. 19
Delta Logo
5:20 am - 12:16 pmIAH-PWM
5h 56m1 stop
Delta Logo
5:30 am - 11:27 amPWM-IAH
6h 57m1 stop
$364Delta
Find Deal
sáb., ene. 3 - mar., ene. 6
United Airlines Logo
5:00 am - 2:33 pmIAH-PWM
8h 33m1 stop
United Airlines Logo
7:22 pm - 12:29 amPWM-IAH
6h 07m1 stop
$379United Airlines
Find Deal
lun., oct. 20 - lun., oct. 27

Delta flights from Houston George Bush Intcntl Airport to Portland, Maine

Our best Delta deals on Houston George Bush Intcntl Airport to Portland, Maine flight tickets
Delta
Feb 15
IAH8:00 amHouston George Bush Intcntl
14h 05m
1 stop
PWM11:05 pmPortland
Feb 19
PWM6:00 amPortland
8h 53m
1 stop
IAH1:53 pmHouston George Bush Intcntl
$356
Find similar
Delta
Jan 3
IAH5:20 amHouston George Bush Intcntl
5h 56m
1 stop
PWM12:16 pmPortland
Jan 6
PWM5:30 amPortland
6h 57m
1 stop
IAH11:27 amHouston George Bush Intcntl
$364
Find similar
Delta
Feb 15
IAH8:00 amHouston George Bush Intcntl
14h 05m
1 stop
PWM11:05 pmPortland
Feb 19
PWM6:00 amPortland
10h 04m
2 stops
IAH3:04 pmHouston George Bush Intcntl
$386
Find similar

United Airlines flights from Houston George Bush Intcntl Airport to Portland, Maine

Our best United Airlines deals on Houston George Bush Intcntl Airport to Portland, Maine flight tickets
United Airlines
Feb 18
IAH4:25 pmHouston George Bush Intcntl
5h 56m
1 stop
PWM11:21 pmPortland
Feb 24
PWM5:45 amPortland
8h 55m
1 stop
IAH1:40 pmHouston George Bush Intcntl
$309
Find similar
United Airlines
Oct 20
IAH5:00 amHouston George Bush Intcntl
8h 33m
1 stop
PWM2:33 pmPortland
Oct 27
PWM7:22 pmPortland
6h 07m
1 stop
IAH12:29 amHouston George Bush Intcntl
$379
Find similar
United Airlines
Sep 28
IAH6:07 amHouston George Bush Intcntl
6h 46m
1 stop
PWM1:53 pmPortland
Sep 30
PWM7:25 pmPortland
6h 07m
1 stop
IAH12:32 amHouston George Bush Intcntl
$437
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Portland, Maine 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, momondo users made 832,500 searches. Data last updated septiembre 24, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

vie. 10/31

6:18 am-2:38 pm

1 stop7h 20m

Portland

mar. 11/4

5:21 pm-10:55 pm

1 stop6h 34m

$209

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

vie. 10/31

5:00 am-2:56 pm

2 stops8h 56m

Portland

mar. 11/4

5:21 pm-10:55 pm

1 stop6h 34m

$214

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

lun. 10/27

6:30 am-1:35 pm

1 stop6h 05m

Portland

sáb. 11/1

5:12 pm-11:19 pm

1 stop7h 07m

$239

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

lun. 10/27

5:05 pm-11:51 pm

1 stop5h 46m

Portland

sáb. 11/1

1:42 pm-10:07 pm

2 stops9h 25m

$244

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

jue. 10/23

8:37 pm-9:06 am

1 stop11h 29m

Portland

lun. 10/27

9:46 am-9:33 am

1 stop24h 47m

$299

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

vie. 10/31

5:28 pm-10:41 am

1 stop16h 13m

Portland

dom. 11/2

3:15 pm-7:03 pm

2 stops28h 48m

$301

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

mié. 2/18

4:25 pm-11:21 pm

1 stop5h 56m

Portland

mar. 2/24

5:45 am-1:40 pm

1 stop8h 55m

$309

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

dom. 2/15

8:00 am-11:05 pm

1 stop14h 05m

Portland

jue. 2/19

6:00 am-1:53 pm

1 stop8h 53m

$356

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

sáb. 1/3

5:20 am-12:16 pm

1 stop5h 56m

Portland

mar. 1/6

5:30 am-11:27 am

1 stop6h 57m

$364

HoustonPortland

IAH - PWM

IAHPWM

Houston George Bush Intcntl

lun. 10/20

5:00 am-2:33 pm

1 stop8h 33m

Portland

lun. 10/27

7:22 pm-12:29 am

1 stop6h 07m

$379

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Houston George Bush Intcntl Airport is in November. Flight prices, which tend to average around $286, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $313.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Houston George Bush Intcntl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $293. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Houston George Bush Intcntl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $554.

What is the cheapest time of day to depart on your flight to Portland, Maine?

At noon is the cheapest time of day to fly from Houston George Bush Intcntl Airport to Portland, Maine when you can find flight prices for as low as $387. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $737. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Houston George Bush Intcntl to Portland flight route?

Fly from Houston George Bush Intcntl to Portland for the best Houston George Bush Intcntl - Portland flight prices

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Houston George Bush Intcntl Airport for as low as $295 on momondo.

What cabin class options are available on Houston George Bush Intcntl to Portland flights?

There is only 1 cabin class available to choose from on Houston George Bush Intcntl to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Houston George Bush Intcntl Airport to Portland, Maine flight prices changed over time?

As of September 2025, prices for Houston George Bush Intcntl Airport to Portland, Maine flights are approximately 67% more expensive when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Portland, Maine (IAH to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Portland, Maine

Fastest flight time

4h 07m

Direct flights

Sun

Airports in Portland, Maine

1 airport
The fastest flight from Houston George Bush Intcntl Airport to Portland, Maine takes 4h 07m
Direct flights go from Houston George Bush Intcntl Airport to Portland, Maine on Sunday. There are no airlines offering direct flights.
There is 1 airport near Portland, Maine: Portland (PWM)
Search flight deals

  • How far is Houston George Bush Intcntl to Portland by plane?

    Portland is 1666.8 mi away from Houston George Bush Intcntl. A reasonable flight in good conditions will take 4h 07m.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Portland Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Portland Airport refresh daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Portland Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston George Bush Intcntl Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Portland, Maine?

  • What is the most popular airline from Houston George Bush Intcntl Airport to Portland, Maine?

Best airlines flying from Houston George Bush Intcntl Airport to Portland, Maine

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $139Free CancellationRating
7.9
7,973 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Bartlett
Brunswick
Gorham
Auburn
Intervale
Windham
Bath
Oxford
Georgetown
Tamworth
Falmouth

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Portland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Portland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Houston to Portland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portland from Houston with this policy.

How can momondo help me find flights from Houston to Portland?

momondo provides multiple filters to help you find the best flight to Portland from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Portland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portland from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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