What is the cheapest airline that flies from Harlingen Valley Intl to Maryland?

American Airlines and United Airlines are the most popular carriers operating from Harlingen Valley Intl to Maryland

What airlines fly to Maryland?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Maryland from Harlingen according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Maryland. Keep in mind that there are 3 different airlines that fly to Maryland on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Harlingen Valley Intl Airport to Maryland is 2 as of September 2026.

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

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 Harlingen Valley Intl Airport to Maryland.

What documentation or ID do you need to fly to Maryland?

The necessary travel and health documents for your Maryland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$170 Cheap Flights from Harlingen to Maryland in 2026

Find the cheapest flights from Harlingen to Maryland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:30 pm - 11:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston Hobby

11:40 am - 3:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 10m1 stop Houston Hobby

$339Southwest

Thu, Dec 3 - Mon, Dec 7

5:18 pm - 11:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 41m1 stop Houston George Bush Intcntl

8:55 am - 3:59 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 04m1 stop Houston George Bush Intcntl

$339United Airlines

Thu, Oct 1 - Mon, Oct 5

2:13 pm - 11:44 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 31m1 stop Minneapolis St Paul

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

$339Delta

Thu, Oct 8 - Sat, Oct 10

2:13 pm - 11:26 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 13m1 stop Minneapolis St Paul

7:23 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 00m1 stop Minneapolis St Paul

$339Delta

Thu, Oct 8 - Sat, Oct 10

7:10 am - 1:40 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston George Bush Intcntl

10:58 am - 4:01 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 03m1 stop Houston George Bush Intcntl

$339United Airlines

Thu, Oct 29 - Fri, Oct 30

5:18 pm - 12:30 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

3:02 pm - 7:44 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 42m1 stop Houston George Bush Intcntl

$339United Airlines

Thu, Oct 1 - Mon, Oct 5

4:30 pm - 11:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston Hobby

2:40 pm - 9:45 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 05m2 stops Lambert-St Louis Houston Hobby

$344Southwest

Thu, Dec 3 - Mon, Dec 7

2:13 pm - 11:44 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 31m1 stop Minneapolis St Paul

6:10 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 13m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$344Delta

Thu, Oct 8 - Sat, Oct 10

3:15 pm - 9:45 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 30m1 stop Houston Hobby

10:55 am - 5:20 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 25m2 stops Charleston Dallas Love Field

$352Southwest

Sat, Oct 17 - Tue, Nov 3

1:50 pm - 9:20 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

6h 30m1 stop Dallas Love Field

2:20 pm - 7:30 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

6h 10m1 stop Austin Bergstrom

$355Southwest

Thu, Oct 15 - Sat, Oct 24

Cheap last minute flights

Enter your travel dates to find the best prices.

6:20 am - 3:30 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

8h 10m1 stop Austin Bergstrom

6:35 am - 1:40 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

8h 05m1 stop Dallas Love Field

$519Southwest

Fri, Sep 18 - Sun, Sep 20

5:30 am - 1:15 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

6h 45m2 stops Houston Hobby Chicago Midway

6:35 am - 1:40 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

8h 05m1 stop Dallas Love Field

$524Southwest

Fri, Sep 18 - Sun, Sep 20

5:18 pm - 11:55 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 37m1 stop Houston George Bush Intcntl

8:31 am - 3:59 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 28m1 stop Houston George Bush Intcntl

$529United Airlines

Mon, Sep 14 - Fri, Sep 18

11:55 am - 8:15 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

7h 20m2 stops Austin Bergstrom Dallas Love Field

11:35 am - 6:30 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 55m2 stops Norfolk Dallas Love Field

$529Southwest

Fri, Sep 18 - Sun, Sep 20

5:18 pm - 11:55 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 37m1 stop Houston George Bush Intcntl

3:02 pm - 7:39 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 37m1 stop Houston George Bush Intcntl

$650United Airlines

Mon, Sep 14 - Thu, Sep 17

5:51 am - 2:18 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

7h 27m1 stop Dallas/Fort Worth

3:08 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 40m1 stop Dallas/Fort Worth

$655American Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

1:05 pm - 7:39 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 34m1 stop Houston George Bush Intcntl

$689United Airlines

Fri, Sep 18 - Sun, Sep 20

5:51 am - 2:59 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

8h 08m1 stop Dallas/Fort Worth

11:59 am - 7:25 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

8h 26m1 stop Dallas/Fort Worth

$703American Airlines

Fri, Sep 18 - Sun, Sep 20

5:51 am - 2:18 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

7h 27m1 stop Dallas/Fort Worth

3:08 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 40m1 stop Dallas/Fort Worth

$720American Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

6:05 am - 3:59 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

10h 54m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$754United Airlines

Fri, Sep 18 - Sun, Sep 20

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United Airlines flights from Harlingen to Maryland

Our best United Airlines deals on Harlingen to Maryland flight tickets

United Airlines

Oct 1

HRL5:18 pmHarlingen Valley Intl

6h 12m

1 stop

IAD12:30 amWashington, D.C. Dulles Intl

Oct 5

IAD3:02 pmWashington, D.C. Dulles Intl

5h 42m

1 stop

HRL7:44 pmHarlingen Valley Intl

$339

United Airlines

Oct 17

HRL7:15 amHarlingen Valley Intl

8h 12m

1 stop

BWI4:27 pmBaltimore/Washington

Nov 3

BWI4:30 pmBaltimore/Washington

7h 18m

1 stop

HRL10:48 pmHarlingen Valley Intl

$351

United Airlines

Nov 24

HRL5:25 pmHarlingen Valley Intl

6h 12m

1 stop

IAD12:37 amWashington, D.C. Dulles Intl

Dec 1

IAD6:00 amWashington, D.C. Dulles Intl

6h 14m

1 stop

HRL11:14 amHarlingen Valley Intl

$359

American Airlines flights from Harlingen to Maryland

Our best American Airlines deals on Harlingen to Maryland flight tickets

American Airlines

Sep 30

HRL5:28 pmHarlingen Valley Intl

5h 31m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

Oct 5

DCA5:00 pmWashington, D.C. Reagan-National

6h 50m

1 stop

HRL10:50 pmHarlingen Valley Intl

$384

American Airlines

Sep 23

HRL5:51 amHarlingen Valley Intl

6h 52m

1 stop

DCA1:43 pmWashington, D.C. Reagan-National

Sep 27

DCA5:00 amWashington, D.C. Reagan-National

5h 58m

1 stop

HRL9:58 amHarlingen Valley Intl

$409

American Airlines

Nov 13

HRL2:26 pmHarlingen Valley Intl

7h 27m

1 stop

BWI10:53 pmBaltimore/Washington

Nov 15

BWI11:52 amBaltimore/Washington

7h 19m

1 stop

HRL6:11 pmHarlingen Valley Intl

$417

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 12/3

4:30 pm-11:00 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Mon 12/7

11:40 am-3:50 pm

1 stop5h 10m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 10/1

5:18 pm-11:59 pm

1 stop5h 41m

Washington, D.C. Reagan-National

Mon 10/5

8:55 am-3:59 pm

1 stop8h 04m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 10/8

2:13 pm-11:44 pm

1 stop8h 31m

Washington, D.C. Reagan-National

Sat 10/10

6:05 am-1:23 pm

1 stop8h 18m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - IAD Washington, D.C. Dulles Intl

HRLIAD

Harlingen Valley Intl

Thu 10/8

2:13 pm-11:26 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Sat 10/10

7:23 am-1:23 pm

1 stop7h 00m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 10/29

7:10 am-1:40 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Fri 10/30

10:58 am-4:01 pm

1 stop6h 03m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - IAD Washington, D.C. Dulles Intl

HRLIAD

Harlingen Valley Intl

Thu 10/1

5:18 pm-12:30 am

1 stop6h 12m

Washington, D.C. Dulles Intl

Mon 10/5

3:02 pm-7:44 pm

1 stop5h 42m

$339

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 12/3

4:30 pm-11:00 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Mon 12/7

2:40 pm-9:45 pm

2 stops8h 05m

$344

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 10/8

2:13 pm-11:44 pm

1 stop8h 31m

Washington, D.C. Reagan-National

Sat 10/10

6:10 am-1:23 pm

2 stops8h 13m

$344

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Sat 10/17

3:15 pm-9:45 pm

1 stop5h 30m

Baltimore/Washington

Tue 11/3

10:55 am-5:20 pm

2 stops7h 25m

$352

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Thu 10/15

1:50 pm-9:20 pm

1 stop6h 30m

Baltimore/Washington

Sat 10/24

2:20 pm-7:30 pm

1 stop6h 10m

$355

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen to Maryland

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

Prices

Airlines

What is the cheapest month to fly to Maryland?

The cheapest month to fly to Maryland from Harlingen is in December. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you don’t want to visit Maryland in December, then you should wait until February to fly from Harlingen, when ticket prices are also cheap, with an average price of $290.

Cheap Harlingen to Maryland flight deals and tips

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

Best Price Found	$170
Fastest flight time	4h 45m
Direct flights	None

The best one-way flight to Maryland from Harlingen in the past 72 hours is $170. The best round-trip flight deal from Harlingen to Maryland found on momondo in the last 72 hours is $339.

The fastest flight from Harlingen to Maryland takes 4h 45m

There are no direct flights from Harlingen to Maryland. There are no popular flight routes from Harlingen to Maryland.

Search flight deals

Frequently asked questions about flying from Harlingen to Maryland

When did momondo last update prices for flights from Harlingen Valley Intl Airport to Maryland?
Prices for flights from Harlingen Valley Intl Airport to Maryland refresh daily.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to Maryland?
The number of operators available for flights from Harlingen Valley Intl Airport to Maryland is 2 as of September 2026.
How old do you have to be to fly from Harlingen Valley Intl Airport to Maryland?
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 Harlingen Valley Intl Airport to Maryland.
What documentation or ID do you need to fly to Maryland?
The necessary travel and health documents for your Maryland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Harlingen to Maryland

Compare and see reviews for airlines that fly from Harlingen to Maryland with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $290	Free Cancellation	Rating 8.0 4,192 reviews		Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Harlingen to Maryland. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Maryland from Harlingen with this policy.

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

Once you have performed a search for Harlingen to Maryland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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