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Cheap flights from District of Columbia to Harlingen from $199

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 9/3. 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 District of Columbia to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:58 am - 3:59 pm
DCA
-
HRL
6h 01m
1 stop
United Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$339United Airlines
Mon, Aug 17 - Mon, Aug 24
United Airlines Logo
8:31 am - 1:24 pm
IAD
-
HRL
5h 53m
1 stop
United Airlines Logo
1:59 pm - 10:45 pm
HRL
-
IAD
7h 46m
1 stop
$339United Airlines
Thu, Aug 20 - Wed, Aug 26
Delta Logo
7:23 am - 1:23 pm
IAD
-
HRL
7h 00m
1 stop
Delta Logo
2:13 pm - 11:26 pm
HRL
-
IAD
8h 13m
1 stop
$339Delta
Sat, Oct 31 - Sat, Nov 7
American Airlines Logo
7:14 am - 2:17 pm
IAD
-
HRL
8h 03m
1 stop
American Airlines Logo
2:50 pm - 11:19 pm
HRL
-
IAD
7h 29m
1 stop
$339American Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
8:31 am - 3:59 pm
IAD
-
HRL
8h 28m
1 stop
United Airlines Logo
5:18 pm - 11:55 pm
HRL
-
IAD
5h 37m
1 stop
$339United Airlines
Tue, Sep 8 - Sat, Sep 12
United Airlines Logo
6:30 am - 1:24 pm
IAD
-
HRL
7h 54m
1 stop
United Airlines Logo
5:18 pm - 11:55 pm
HRL
-
IAD
5h 37m
1 stop
$339United Airlines
Mon, Aug 17 - Mon, Aug 24
United Airlines Logo
6:30 am - 1:24 pm
IAD
-
HRL
7h 54m
1 stop
United Airlines Logo
5:18 pm - 11:55 pm
HRL
-
IAD
5h 37m
1 stop
$339United Airlines
Thu, Aug 27 - Tue, Sep 15
United Airlines Logo
8:31 am - 1:24 pm
IAD
-
HRL
5h 53m
1 stop
United Airlines Logo
5:18 pm - 12:30 am
HRL
-
IAD
6h 12m
1 stop
$339United Airlines
Thu, Aug 27 - Thu, Sep 17
Delta Logo
7:23 am - 1:23 pm
IAD
-
HRL
7h 00m
1 stop
Delta Logo
2:13 pm - 12:42 am
HRL
-
IAD
9h 29m
2 stops
$344Delta
Sat, Oct 31 - Sat, Nov 7
Southwest Logo
6:55 am - 1:20 pm
DCA
-
HRL
7h 25m
1 stop
Southwest Logo
4:25 pm - 11:55 pm
HRL
-
DCA
6h 30m
2 stops
$344Southwest
Thu, Aug 20 - Wed, Aug 26

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Delta flights from District of Columbia to Harlingen

Our best Delta deals on District of Columbia to Harlingen flight tickets
Delta
Oct 31
IAD7:23 amWashington, D.C. Dulles Intl
7h 00m
1 stop
HRL1:23 pmHarlingen Valley Intl
Nov 7
HRL2:13 pmHarlingen Valley Intl
9h 29m
2 stops
IAD12:42 amWashington, D.C. Dulles Intl
$344
Delta
Oct 29
IAD7:23 amWashington, D.C. Dulles Intl
7h 00m
1 stop
HRL1:23 pmHarlingen Valley Intl
Nov 1
HRL2:13 pmHarlingen Valley Intl
8h 03m
2 stops
IAD11:16 pmWashington, D.C. Dulles Intl
$354
Delta
Nov 1
IAD6:05 amWashington, D.C. Dulles Intl
8h 18m
2 stops
HRL1:23 pmHarlingen Valley Intl
Nov 7
HRL2:13 pmHarlingen Valley Intl
9h 29m
2 stops
IAD12:42 amWashington, D.C. Dulles Intl
$438

American Airlines flights from District of Columbia to Harlingen

Our best American Airlines deals on District of Columbia to Harlingen flight tickets
American Airlines
Aug 27
DCA11:59 amWashington, D.C. Reagan-National
8h 34m
1 stop
HRL7:33 pmHarlingen Valley Intl
Aug 31
HRL6:43 pmHarlingen Valley Intl
13h 16m
1 stop
DCA8:59 amWashington, D.C. Reagan-National
$388
American Airlines
Oct 30
IAD7:13 pmWashington, D.C. Dulles Intl
15h 55m
1 stop
HRL10:08 amHarlingen Valley Intl
Nov 1
HRL5:40 amHarlingen Valley Intl
7h 10m
1 stop
IAD1:50 pmWashington, D.C. Dulles Intl
$393
American Airlines
Oct 30
IAD5:01 amWashington, D.C. Dulles Intl
14h 11m
2 stops
HRL6:12 pmHarlingen Valley Intl
Nov 1
HRL5:40 amHarlingen Valley Intl
7h 10m
1 stop
IAD1:50 pmWashington, D.C. Dulles Intl
$416

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 July 30, 2026.
Use the filters below to find and compare flights from District of Columbia to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Mon 8/17

10:58 am-3:59 pm

1 stop6h 01m

Harlingen Valley Intl

Mon 8/24

5:18 pm-11:59 pm

1 stop5h 41m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 8/20

8:31 am-1:24 pm

1 stop5h 53m

Harlingen Valley Intl

Wed 8/26

1:59 pm-10:45 pm

1 stop7h 46m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sat 10/31

7:23 am-1:23 pm

1 stop7h 00m

Harlingen Valley Intl

Sat 11/7

2:13 pm-11:26 pm

1 stop8h 13m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sun 11/1

7:14 am-2:17 pm

1 stop8h 03m

Harlingen Valley Intl

Sat 11/7

2:50 pm-11:19 pm

1 stop7h 29m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 9/8

8:31 am-3:59 pm

1 stop8h 28m

Harlingen Valley Intl

Sat 9/12

5:18 pm-11:55 pm

1 stop5h 37m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 8/17

6:30 am-1:24 pm

1 stop7h 54m

Harlingen Valley Intl

Mon 8/24

5:18 pm-11:55 pm

1 stop5h 37m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 8/27

6:30 am-1:24 pm

1 stop7h 54m

Harlingen Valley Intl

Tue 9/15

5:18 pm-11:55 pm

1 stop5h 37m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 8/27

8:31 am-1:24 pm

1 stop5h 53m

Harlingen Valley Intl

Thu 9/17

5:18 pm-12:30 am

1 stop6h 12m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sat 10/31

7:23 am-1:23 pm

1 stop7h 00m

Harlingen Valley Intl

Sat 11/7

2:13 pm-12:42 am

2 stops9h 29m

$344

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 8/20

6:55 am-1:20 pm

1 stop7h 25m

Harlingen Valley Intl

Wed 8/26

4:25 pm-11:55 pm

2 stops6h 30m

$344

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 District of Columbia 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 November, then book flights to Harlingen from District of Columbia during September instead. Flights to Harlingen in September, while not as cheap as those in November, still average around $189.

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

You could potentially save up to 12% on your flight if you consider stops on a District of Columbia to Harlingen flight.

Cheap District of Columbia to Harlingen flight deals and tips

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

Fastest flight time

4h 55m

Direct flights

None
The fastest flight from District of Columbia to Harlingen takes 4h 55m
There are no direct flights from District of Columbia to Harlingen. There are no popular flight routes from District of Columbia to Harlingen.
Search flight deals

Frequently asked questions about flying from District of Columbia to Harlingen

  • 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

Compare and see reviews for airlines that fly from District of Columbia to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $286Free CancellationRating
8.0
4,226 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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