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Cheap flights from District of Columbia to Harlingen from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Harlingen departing on 4/15. 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 District of Columbia to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 10:13 am
DCA
-
HRL
6h 13m
1 stop
American Airlines Logo
4:57 pm - 11:59 pm
HRL
-
DCA
6h 02m
1 stop
$263American Airlines
Tue, May 26 - Tue, Jun 2
American Airlines Logo
5:00 am - 10:13 am
DCA
-
HRL
6h 13m
1 stop
American Airlines Logo
4:57 pm - 11:59 pm
HRL
-
DCA
6h 02m
1 stop
$279American Airlines
Tue, May 26 - Tue, Jun 2
United Airlines Logo
12:59 pm - 7:49 pm
DCA
-
HRL
7h 50m
1 stop
United Airlines Logo
5:10 am - 11:56 am
HRL
-
DCA
5h 46m
1 stop
$313United Airlines
Mon, Jul 13 - Wed, Jul 15
United Airlines Logo
2:53 pm - 7:49 pm
IAD
-
HRL
5h 56m
1 stop
United Airlines Logo
5:20 pm - 12:31 am
HRL
-
IAD
6h 11m
1 stop
$313United Airlines
Mon, Jul 13 - Wed, Jul 15
United Airlines Logo
12:40 pm - 8:00 pm
DCA
-
HRL
8h 20m
1 stop
United Airlines Logo
12:10 pm - 6:50 pm
HRL
-
DCA
5h 40m
1 stop
$316United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
6:00 am - 11:23 am
IAD
-
HRL
6h 23m
1 stop
United Airlines Logo
5:18 pm - 11:59 pm
HRL
-
IAD
5h 41m
1 stop
$328United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
12:40 pm - 7:40 pm
DCA
-
HRL
8h 00m
1 stop
United Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$350United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
12:40 pm - 8:00 pm
DCA
-
HRL
8h 20m
1 stop
United Airlines Logo
7:00 am - 1:35 pm
HRL
-
DCA
5h 35m
1 stop
$361United Airlines
Sat, May 2 - Tue, May 5
Southwest Logo
6:00 am - 5:25 pm
DCA
-
HRL
12h 25m
1 stop
Southwest Logo
6:00 am - 12:20 pm
HRL
-
DCA
5h 20m
1 stop
$362Southwest
Thu, Apr 16 - Sun, Apr 19
Delta Logo
6:05 am - 3:05 pm
DCA
-
HRL
10h 00m
1 stop
Delta Logo
4:02 pm - 11:44 pm
HRL
-
DCA
6h 42m
1 stop
$379Delta
Thu, Apr 16 - Mon, Apr 20

United Airlines flights from District of Columbia to Harlingen, Texas

Our best United Airlines deals on District of Columbia to Harlingen, Texas flight tickets
United Airlines
Jul 13
DCA12:59 pmWashington, D.C. Reagan-National
7h 50m
1 stop
HRL7:49 pmHarlingen Valley Intl
Jul 15
HRL5:10 amHarlingen Valley Intl
5h 46m
1 stop
DCA11:56 amWashington, D.C. Reagan-National
$313
United Airlines
May 2
DCA12:40 pmWashington, D.C. Reagan-National
8h 20m
1 stop
HRL8:00 pmHarlingen Valley Intl
May 5
HRL12:10 pmHarlingen Valley Intl
5h 40m
1 stop
DCA6:50 pmWashington, D.C. Reagan-National
$316
United Airlines
Apr 9
IAD6:00 amWashington, D.C. Dulles Intl
6h 23m
1 stop
HRL11:23 amHarlingen Valley Intl
Apr 13
HRL5:18 pmHarlingen Valley Intl
5h 41m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$328

Southwest flights from District of Columbia to Harlingen, Texas

Our best Southwest deals on District of Columbia to Harlingen, Texas flight tickets
Southwest
Apr 16
DCA6:00 amWashington, D.C. Reagan-National
12h 25m
1 stop
HRL5:25 pmHarlingen Valley Intl
Apr 19
HRL6:00 amHarlingen Valley Intl
5h 20m
1 stop
DCA12:20 pmWashington, D.C. Reagan-National
$362
Southwest
Apr 16
DCA6:00 amWashington, D.C. Reagan-National
12h 25m
1 stop
HRL5:25 pmHarlingen Valley Intl
Apr 19
HRL6:00 amHarlingen Valley Intl
7h 00m
2 stops
DCA2:00 pmWashington, D.C. Reagan-National
$404
Southwest
Apr 12
DCA6:00 amWashington, D.C. Reagan-National
6h 20m
1 stop
HRL11:20 amHarlingen Valley Intl
Apr 16
HRL6:00 amHarlingen Valley Intl
6h 20m
2 stops
DCA1:20 pmWashington, D.C. Reagan-National
$419

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Harlingen, Texas 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 March 29, 2026.
Use the filters below to find and compare flights from District of Columbia to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 5/26

5:00 am-10:13 am

1 stop6h 13m

Harlingen Valley Intl

Tue 6/2

4:57 pm-11:59 pm

1 stop6h 02m

$263

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 5/26

5:00 am-10:13 am

1 stop6h 13m

Harlingen Valley Intl

Tue 6/2

4:57 pm-11:59 pm

1 stop6h 02m

$279

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Mon 7/13

12:59 pm-7:49 pm

1 stop7h 50m

Harlingen Valley Intl

Wed 7/15

5:10 am-11:56 am

1 stop5h 46m

$313

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 7/13

2:53 pm-7:49 pm

1 stop5h 56m

Harlingen Valley Intl

Wed 7/15

5:20 pm-12:31 am

1 stop6h 11m

$313

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/2

12:40 pm-8:00 pm

1 stop8h 20m

Harlingen Valley Intl

Tue 5/5

12:10 pm-6:50 pm

1 stop5h 40m

$316
Quickest round-trip

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 4/9

6:00 am-11:23 am

1 stop6h 23m

Harlingen Valley Intl

Mon 4/13

5:18 pm-11:59 pm

1 stop5h 41m

$328

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 4/16

12:40 pm-7:40 pm

1 stop8h 00m

Harlingen Valley Intl

Sun 4/19

5:18 pm-11:59 pm

1 stop5h 41m

$350

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/2

12:40 pm-8:00 pm

1 stop8h 20m

Harlingen Valley Intl

Tue 5/5

7:00 am-1:35 pm

1 stop5h 35m

$361

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 4/16

6:00 am-5:25 pm

1 stop12h 25m

Harlingen Valley Intl

Sun 4/19

6:00 am-12:20 pm

1 stop5h 20m

$362

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 4/16

6:05 am-3:05 pm

1 stop10h 00m

Harlingen Valley Intl

Mon 4/20

4:02 pm-11:44 pm

1 stop6h 42m

$379

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from District of Columbia to Harlingen, Texas

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

Can stopping save me money on District of Columbia to Harlingen, Texas flights?

You could potentially save up to 11% on your flight if you consider stops on a District of Columbia to Harlingen, Texas flight.

Cheap District of Columbia to Harlingen, Texas flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Harlingen, Texas

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from District of Columbia to Harlingen, Texas takes 5h 15m
There are no direct flights from District of Columbia to Harlingen, Texas. There are no popular flight routes from District of Columbia to Harlingen, Texas.
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  • When did momondo last update prices for flights from District of Columbia to Harlingen Valley Intl Airport?

    Prices for flights from District of Columbia to Harlingen Valley Intl Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Harlingen Valley Intl Airport.

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

    The travel and health documents you'll need for your trip to Harlingen Valley Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harlingen Valley Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Harlingen, Texas

Compare and see reviews for airlines that fly from District of Columbia to Harlingen, Texas with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $266Free CancellationRating
8.0
4,331 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Harlingen?

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

Can I find flights from District of Columbia to Harlingen with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for District of Columbia to Harlingen flights to just show those with flexible booking policies.

How can momondo help me find flights from District of Columbia to Harlingen?

momondo helps you find the best flight between District of Columbia and Harlingen by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Harlingen from District of Columbia. 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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