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Cheap flights from Maryland to Harlingen from $170

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 9/14. 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
3:55 pm - 10:54 pm-
7h 59m
American Airlines Logo
3:17 pm - 11:41 pm-
7h 24m
$334American Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
8:31 am - 3:59 pm-
8h 28m
United Airlines Logo
5:18 pm - 11:55 pm-
5h 37m
$339United Airlines
Thu, Aug 27 - Mon, Aug 31
Delta Logo
7:30 am - 1:23 pm-
6h 53m
Delta Logo
2:13 pm - 9:45 pm-
6h 32m
$342Delta
Thu, Oct 29 - Sun, Nov 1
American Airlines Logo
3:55 pm - 10:54 pm-
7h 59m
American Airlines Logo
3:17 pm - 11:41 pm-
7h 24m
$344American Airlines
Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
3:55 pm - 10:54 pm-
7h 59m
American Airlines Logo
5:54 am - 3:02 pm-
8h 08m
$348American Airlines
Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
3:55 pm - 10:54 pm-
7h 59m
American Airlines Logo
3:17 pm - 11:41 pm-
7h 24m
$350American Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
2:40 pm - 9:52 pm-
8h 12m
United Airlines Logo
5:18 pm - 11:59 pm-
5h 41m
$359United Airlines
Fri, Aug 28 - Fri, Sep 4
Southwest Logo
1:55 pm - 10:50 pm-
9h 55m
Southwest Logo
5:50 am - 4:40 pm-
9h 50m
$369Southwest
Thu, Oct 29 - Sun, Nov 1
Southwest Logo
3:05 pm - 9:50 pm-
7h 45m
Southwest Logo
12:35 pm - 9:00 pm-
7h 25m
$369Southwest
Tue, Sep 15 - Wed, Sep 16
Southwest Logo
10:10 am - 5:15 pm-
8h 05m
Southwest Logo
10:55 am - 8:15 pm-
8h 20m
$374Southwest
Fri, Aug 28 - Fri, Sep 4

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American Airlines flights from Maryland to Harlingen

Our best American Airlines deals on Maryland to Harlingen flight tickets
American Airlines
Aug 27
BWI3:55 pmBaltimore/Washington
7h 59m
1 stop
HRL10:54 pmHarlingen Valley Intl
Aug 31
HRL3:17 pmHarlingen Valley Intl
7h 24m
1 stop
BWI11:41 pmBaltimore/Washington
$334
American Airlines
Aug 27
BWI3:55 pmBaltimore/Washington
7h 59m
1 stop
HRL10:54 pmHarlingen Valley Intl
Aug 31
HRL3:17 pmHarlingen Valley Intl
7h 24m
1 stop
BWI11:41 pmBaltimore/Washington
$344
American Airlines
Aug 27
BWI3:55 pmBaltimore/Washington
7h 59m
1 stop
HRL10:54 pmHarlingen Valley Intl
Aug 31
HRL5:54 amHarlingen Valley Intl
8h 08m
1 stop
BWI3:02 pmBaltimore/Washington
$348

Delta flights from Maryland to Harlingen

Our best Delta deals on Maryland to Harlingen flight tickets
Delta
Oct 29
BWI7:30 amBaltimore/Washington
6h 53m
1 stop
HRL1:23 pmHarlingen Valley Intl
Nov 1
HRL2:13 pmHarlingen Valley Intl
6h 32m
1 stop
BWI9:45 pmBaltimore/Washington
$342
Delta
Oct 30
PHL5:45 amPhiladelphia
8h 38m
1 stop
HRL1:23 pmHarlingen Valley Intl
Nov 1
HRL2:13 pmHarlingen Valley Intl
8h 37m
1 stop
PHL11:50 pmPhiladelphia
$359
Delta
Oct 30
PHL5:45 amPhiladelphia
8h 38m
1 stop
HRL1:23 pmHarlingen Valley Intl
Nov 1
HRL2:13 pmHarlingen Valley Intl
9h 42m
2 stops
PHL12:55 amPhiladelphia
$364

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 August 4, 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

3:55 pm-10:54 pm

1 stop7h 59m

Harlingen Valley Intl

Mon 8/31

3:17 pm-11:41 pm

1 stop7h 24m

$334

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 8/27

8:31 am-3:59 pm

1 stop8h 28m

Harlingen Valley Intl

Mon 8/31

5:18 pm-11:55 pm

1 stop5h 37m

$339
Quickest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 10/29

7:30 am-1:23 pm

1 stop6h 53m

Harlingen Valley Intl

Sun 11/1

2:13 pm-9:45 pm

1 stop6h 32m

$342

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 8/27

3:55 pm-10:54 pm

1 stop7h 59m

Harlingen Valley Intl

Mon 8/31

3:17 pm-11:41 pm

1 stop7h 24m

$344

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 8/27

3:55 pm-10:54 pm

1 stop7h 59m

Harlingen Valley Intl

Mon 8/31

5:54 am-3:02 pm

1 stop8h 08m

$348

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 8/27

3:55 pm-10:54 pm

1 stop7h 59m

Harlingen Valley Intl

Mon 8/31

3:17 pm-11:41 pm

1 stop7h 24m

$350

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 8/28

2:40 pm-9:52 pm

1 stop8h 12m

Harlingen Valley Intl

Fri 9/4

5:18 pm-11:59 pm

1 stop5h 41m

$359

PhiladelphiaHarlingen

PHL - HRL

PHLHRL

Philadelphia

Thu 10/29

1:55 pm-10:50 pm

2 stops9h 55m

Harlingen Valley Intl

Sun 11/1

5:50 am-4:40 pm

2 stops9h 50m

$369

PhiladelphiaHarlingen

PHL - HRL

PHLHRL

Philadelphia

Tue 9/15

3:05 pm-9:50 pm

2 stops7h 45m

Harlingen Valley Intl

Wed 9/16

12:35 pm-9:00 pm

2 stops7h 25m

$369

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 8/28

10:10 am-5:15 pm

1 stop8h 05m

Harlingen Valley Intl

Fri 9/4

10:55 am-8:15 pm

2 stops8h 20m

$374

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 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 September instead. Flights to Harlingen in September, while not as cheap as those in January, still average around $327.

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 35m

Direct flights

None
The fastest flight from Maryland to Harlingen takes 5h 35m
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 $286Free CancellationRating
8.0
4,222 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.

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