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Cheap flights from Portland, Maine to Harlingen from $180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Harlingen departing on 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland, Maine to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:40 am - 5:55 pm
PWM
-
HRL
11h 15m
2 stops
Southwest Logo
10:10 am - 9:05 pm
HRL
-
PWM
9h 55m
2 stops
$429Southwest
Thu, Jul 9 - Sat, Jul 11
Southwest Logo
7:40 am - 5:55 pm
PWM
-
HRL
11h 15m
2 stops
Southwest Logo
10:10 am - 9:05 pm
HRL
-
PWM
9h 55m
2 stops
$455Southwest
Thu, Jul 9 - Sat, Jul 11
United Airlines Logo
6:00 am - 4:00 pm
PWM
-
HRL
11h 00m
2 stops
United Airlines Logo
5:05 am - 2:20 pm
HRL
-
PWM
8h 15m
2 stops
$475United Airlines
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
8:47 am - 10:51 pm
PWM
-
HRL
15h 04m
3 stops
United Airlines Logo
5:05 am - 2:33 pm
HRL
-
PWM
8h 28m
2 stops
$565United Airlines
Sat, Oct 31 - Tue, Nov 3
American Airlines Logo
5:40 pm - 12:05 am
PWM
-
HRL
7h 25m
1 stop
American Airlines Logo
10:45 am - 10:47 pm
HRL
-
PWM
11h 02m
2 stops
$646American Airlines
Thu, Jul 9 - Sat, Jul 11
American Airlines Logo
5:40 pm - 12:05 am
PWM
-
HRL
7h 25m
1 stop
American Airlines Logo
10:45 am - 10:47 pm
HRL
-
PWM
11h 02m
2 stops
$654American Airlines
Thu, Jul 9 - Sat, Jul 11
United Airlines Logo
9:55 am - 7:49 pm
PWM
-
HRL
10h 54m
3 stops
United Airlines Logo
5:10 am - 2:31 pm
HRL
-
PWM
8h 21m
2 stops
$1,051United Airlines
Thu, Jul 9 - Sat, Jul 11
American Airlines Logo
5:40 pm - 12:05 am
PWM
-
HRL
7h 25m
1 stop
American Airlines Logo
6:00 am - 4:41 pm
HRL
-
PWM
9h 41m
1 stop
$1,229American Airlines
Thu, Jul 9 - Sat, Jul 11

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United Airlines flights from Portland, Maine to Harlingen

Our best United Airlines deals on Portland, Maine to Harlingen flight tickets
United Airlines
Nov 17
PWM6:00 amPortland
11h 00m
2 stops
HRL4:00 pmHarlingen Valley Intl
Nov 18
HRL5:05 amHarlingen Valley Intl
8h 15m
2 stops
PWM2:20 pmPortland
$475
United Airlines
Oct 31
PWM8:47 amPortland
15h 04m
3 stops
HRL10:51 pmHarlingen Valley Intl
Nov 3
HRL5:05 amHarlingen Valley Intl
8h 28m
2 stops
PWM2:33 pmPortland
$565
United Airlines
Jul 9
PWM9:55 amPortland
10h 54m
3 stops
HRL7:49 pmHarlingen Valley Intl
Jul 11
HRL5:10 amHarlingen Valley Intl
8h 21m
2 stops
PWM2:31 pmPortland
$1,051

Southwest flights from Portland, Maine to Harlingen

Our best Southwest deals on Portland, Maine to Harlingen flight tickets
Southwest
Jul 9
PWM7:40 amPortland
11h 15m
2 stops
HRL5:55 pmHarlingen Valley Intl
Jul 11
HRL10:10 amHarlingen Valley Intl
9h 55m
2 stops
PWM9:05 pmPortland
$429
Southwest
Jul 9
PWM7:40 amPortland
11h 15m
2 stops
HRL5:55 pmHarlingen Valley Intl
Jul 11
HRL10:10 amHarlingen Valley Intl
9h 55m
2 stops
PWM9:05 pmPortland
$455

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Harlingen 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 June 25, 2026.
Use the filters below to find and compare flights from Portland, Maine to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

7:40 am-5:55 pm

2 stops11h 15m

Harlingen Valley Intl

Sat 7/11

10:10 am-9:05 pm

2 stops9h 55m

$429

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

7:40 am-5:55 pm

2 stops11h 15m

Harlingen Valley Intl

Sat 7/11

10:10 am-9:05 pm

2 stops9h 55m

$455

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Tue 11/17

6:00 am-4:00 pm

2 stops11h 00m

Harlingen Valley Intl

Wed 11/18

5:05 am-2:20 pm

2 stops8h 15m

$475

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Sat 10/31

8:47 am-10:51 pm

3 stops15h 04m

Harlingen Valley Intl

Tue 11/3

5:05 am-2:33 pm

2 stops8h 28m

$565

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

5:40 pm-12:05 am

1 stop7h 25m

Harlingen Valley Intl

Sat 7/11

10:45 am-10:47 pm

2 stops11h 02m

$646

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

5:40 pm-12:05 am

1 stop7h 25m

Harlingen Valley Intl

Sat 7/11

10:45 am-10:47 pm

2 stops11h 02m

$654

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

9:55 am-7:49 pm

3 stops10h 54m

Harlingen Valley Intl

Sat 7/11

5:10 am-2:31 pm

2 stops8h 21m

$1,051
Quickest round-trip

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Thu 7/9

5:40 pm-12:05 am

1 stop7h 25m

Harlingen Valley Intl

Sat 7/11

6:00 am-4:41 pm

1 stop9h 41m

$1,229
Cheapest one-way

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Tue 8/18

7:45 am-3:50 pm

2 stops9h 05m

$180

PortlandHarlingen

PWM - HRL

PWMHRL

Portland

Sun 8/16

7:40 am-5:00 pm

2 stops10h 20m

$326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Harlingen from

How to get the cheapest flight ticket from Portland, Maine to Harlingen

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 airline that flies from Portland to Harlingen Valley Intl?

Southwest and United Airlines are the most popular carriers operating from Portland to Harlingen Valley Intl

What airlines fly to Harlingen?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Harlingen from Portland, Maine according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Harlingen. Keep in mind that there are 3 different airlines that fly to Harlingen on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Harlingen

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

Cheap Portland, Maine to Harlingen (PWM to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Harlingen

Fastest flight time

11h 00m

Direct flights

None
The fastest flight from Portland, Maine to Harlingen takes 11h 00m
There are no direct flights from Portland, Maine to Harlingen. There are no popular flight routes from Portland, Maine to Harlingen.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Harlingen

  • How far is Portland to Harlingen Valley Intl by plane?

    Harlingen Valley Intl is 1951.0 mi away from Portland. A reasonable flight in good conditions will take 11h 00m.

  • When did momondo last update prices for flights from Portland Airport to Harlingen Valley Intl Airport?

    Prices for flights from Portland Airport to Harlingen Valley Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Harlingen for you.

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

momondo does allow users to show only those flights to Harlingen from Portland which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Harlingen from Portland.

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

Yes momondo offers price alerts on flights to Harlingen from Portland. 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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