Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Maryland to Harlingen from $175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to Harlingen departing on 8/23. 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 Maryland to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:56 pm - 10:54 pm
BWI
-
HRL
7h 58m
1 stop
American Airlines Logo
3:17 pm - 11:41 pm
HRL
-
BWI
7h 24m
1 stop
$284American Airlines
Thu, Aug 27 - Mon, Aug 31
Delta Logo
6:15 am - 1:31 pm
PHL
-
HRL
8h 16m
1 stop
Delta Logo
2:00 pm - 11:40 pm
HRL
-
PHL
8h 40m
1 stop
$293Delta
Tue, Nov 10 - Thu, Nov 19
Southwest Logo
7:10 am - 11:20 am
BWI
-
HRL
5h 10m
1 stop
Southwest Logo
11:55 am - 7:35 pm
HRL
-
BWI
6h 40m
1 stop
$294Southwest
Fri, Sep 18 - Mon, Sep 21
Delta Logo
6:00 am - 1:31 pm
PHL
-
HRL
8h 31m
2 stops
Delta Logo
2:00 pm - 11:40 pm
HRL
-
PHL
8h 40m
1 stop
$298Delta
Tue, Nov 10 - Thu, Nov 19
Southwest Logo
3:15 pm - 10:00 pm
BWI
-
HRL
7h 45m
2 stops
Southwest Logo
6:20 am - 1:05 pm
HRL
-
BWI
5h 45m
1 stop
$302Southwest
Fri, Sep 18 - Mon, Sep 21
Southwest Logo
2:25 pm - 8:25 pm
BWI
-
HRL
7h 00m
1 stop
Southwest Logo
5:30 am - 11:35 am
HRL
-
BWI
5h 05m
1 stop
$309Southwest
Sat, Oct 17 - Mon, Oct 26
Southwest Logo
2:25 pm - 8:25 pm
BWI
-
HRL
7h 00m
1 stop
Southwest Logo
1:10 pm - 10:15 pm
HRL
-
BWI
8h 05m
2 stops
$314Southwest
Sat, Oct 17 - Mon, Oct 26
Southwest Logo
6:30 am - 3:20 pm
DCA
-
HRL
9h 50m
1 stop
Southwest Logo
5:30 am - 2:10 pm
HRL
-
DCA
7h 40m
2 stops
$323Southwest
Sat, Oct 17 - Mon, Oct 26
United Airlines Logo
3:04 pm - 9:52 pm
BWI
-
HRL
7h 48m
1 stop
United Airlines Logo
2:00 pm - 10:34 pm
HRL
-
BWI
7h 34m
1 stop
$325United Airlines
Tue, Oct 20 - Wed, Oct 21
United Airlines Logo
6:16 am - 1:23 pm
PHL
-
HRL
8h 07m
1 stop
United Airlines Logo
7:15 am - 4:49 pm
HRL
-
PHL
8h 34m
1 stop
$337United Airlines
Tue, Sep 29 - Wed, Sep 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Maryland to Harlingen

Our best American Airlines deals on Maryland to Harlingen flight tickets
American Airlines
Aug 27
BWI3:56 pmBaltimore/Washington
7h 58m
1 stop
HRL10:54 pmHarlingen Valley Intl
Aug 31
HRL3:17 pmHarlingen Valley Intl
7h 24m
1 stop
BWI11:41 pmBaltimore/Washington
$284
American Airlines
Jul 21
PHL5:00 amPhiladelphia
6h 12m
1 stop
HRL10:12 amHarlingen Valley Intl
Aug 5
HRL3:17 pmHarlingen Valley Intl
6h 34m
1 stop
PHL10:51 pmPhiladelphia
$353
American Airlines
Aug 27
BWI4:25 pmBaltimore/Washington
7h 29m
2 stops
HRL10:54 pmHarlingen Valley Intl
Aug 31
HRL3:17 pmHarlingen Valley Intl
7h 24m
1 stop
BWI11:41 pmBaltimore/Washington
$373

United Airlines flights from Maryland to Harlingen

Our best United Airlines deals on Maryland to Harlingen flight tickets
United Airlines
Oct 20
BWI3:04 pmBaltimore/Washington
7h 48m
1 stop
HRL9:52 pmHarlingen Valley Intl
Oct 21
HRL2:00 pmHarlingen Valley Intl
7h 34m
1 stop
BWI10:34 pmBaltimore/Washington
$325
United Airlines
Sep 29
PHL6:16 amPhiladelphia
8h 07m
1 stop
HRL1:23 pmHarlingen Valley Intl
Sep 30
HRL7:15 amHarlingen Valley Intl
8h 34m
1 stop
PHL4:49 pmPhiladelphia
$337
United Airlines
Sep 29
PHL6:15 amPhiladelphia
10h 44m
2 stops
HRL3:59 pmHarlingen Valley Intl
Sep 30
HRL5:05 amHarlingen Valley Intl
5h 53m
1 stop
PHL11:58 amPhiladelphia
$342

momondo Fare Finder

 
Customize your flight search to find flights from Maryland 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 13, 2026.
Use the filters below to find and compare flights from Maryland to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 8/27

3:56 pm-10:54 pm

1 stop7h 58m

Harlingen Valley Intl

Mon 8/31

3:17 pm-11:41 pm

1 stop7h 24m

$284

PhiladelphiaHarlingen

PHL - HRL

PHLHRL

Philadelphia

Tue 11/10

6:15 am-1:31 pm

1 stop8h 16m

Harlingen Valley Intl

Thu 11/19

2:00 pm-11:40 pm

1 stop8h 40m

$293
Quickest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 9/18

7:10 am-11:20 am

1 stop5h 10m

Harlingen Valley Intl

Mon 9/21

11:55 am-7:35 pm

1 stop6h 40m

$294

PhiladelphiaHarlingen

PHL - HRL

PHLHRL

Philadelphia

Tue 11/10

6:00 am-1:31 pm

2 stops8h 31m

Harlingen Valley Intl

Thu 11/19

2:00 pm-11:40 pm

1 stop8h 40m

$298

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 9/18

3:15 pm-10:00 pm

2 stops7h 45m

Harlingen Valley Intl

Mon 9/21

6:20 am-1:05 pm

1 stop5h 45m

$302

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 10/17

2:25 pm-8:25 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 10/26

5:30 am-11:35 am

1 stop5h 05m

$309

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 10/17

2:25 pm-8:25 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 10/26

1:10 pm-10:15 pm

2 stops8h 05m

$314

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 10/17

6:30 am-3:20 pm

1 stop9h 50m

Harlingen Valley Intl

Mon 10/26

5:30 am-2:10 pm

2 stops7h 40m

$323

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 10/20

3:04 pm-9:52 pm

1 stop7h 48m

Harlingen Valley Intl

Wed 10/21

2:00 pm-10:34 pm

1 stop7h 34m

$325

PhiladelphiaHarlingen

PHL - HRL

PHLHRL

Philadelphia

Tue 9/29

6:16 am-1:23 pm

1 stop8h 07m

Harlingen Valley Intl

Wed 9/30

7:15 am-4:49 pm

1 stop8h 34m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

See travel insights to Harlingen from

How to get the cheapest flight ticket from Maryland 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 month to fly to Harlingen?

If you aren’t able to travel during the month of January, then book flights to Harlingen from Maryland during April instead. Flights to Harlingen in April, while not as cheap as those in January, still average around $236.

Cheap Maryland to Harlingen flight deals and tips

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

Fastest flight time

5h 10m

Direct flights

None
The fastest flight from Maryland to Harlingen takes 5h 10m
There are no direct flights from Maryland to Harlingen. There are no popular flight routes from Maryland to Harlingen.
Search flight deals

Frequently asked questions about flying from Maryland to Harlingen

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

    Prices for flights from Maryland to Harlingen Valley Intl Airport refresh daily.

  • How many operators does momondo search for flights from Maryland to Harlingen Valley Intl Airport?

  • How old do you have to be to fly from Maryland to Harlingen Valley Intl 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 Maryland to Harlingen Valley Intl Airport.

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

    The required travel and health documents for your Harlingen Valley Intl 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 Harlingen Valley Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Maryland to Harlingen

Compare and see reviews for airlines that fly from Maryland to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $266Free CancellationRating
7.9
4,235 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Maryland 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 Maryland to Harlingen for you.

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

Flights from Maryland to Harlingen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Maryland 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 Maryland.

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

If you are not ready to book a flight from Maryland to Harlingen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harlingen and let you know when they change.

An easier way to manage your Harlingen trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/13
Mon 7/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States