HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$251+ Cheap flights from District of Columbia to Harlingen, TX (HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HRL
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to Harlingen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from District of Columbia to Harlingen

Cheapest flights from District of Columbia to Harlingen
Explore the most affordable flight options available from District of Columbia to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:55 amDCA - HRL
1 stop8h 35mAmerican Airlines
Fri 11/2810:13 amHRL - DCA
1 stop7h 29mAmerican Airlines
Deal found 10/30$394
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:30 amIAD - HRL
1 stop8h 29mUnited Airlines
Mon 11/175:00 pmHRL - IAD
1 stop5h 44mUnited Airlines
Deal found 10/28$399
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:58 pmIAD - HRL
2 stops9h 59mAmerican Airlines
Mon 11/174:02 pmHRL - IAD
1 stop5h 31mAmerican Airlines
Deal found 10/28$404
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:10 amDCA - HRL
1 stop11h 50mSouthwest
Tue 1/67:35 amHRL - DCA
1 stop8h 25mSouthwest
Deal found 10/29$406
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/164:15 pmDCA - HRL
1 stop5h 50mSouthwest
Sun 1/45:50 amHRL - DCA
2 stops8h 40mSouthwest
Deal found 10/28$423
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:18 amIAD - HRL
1 stop9h 25mDelta
Wed 11/53:39 pmHRL - IAD
1 stop7h 00mDelta
Deal found 10/28$439
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:10 amDCA - HRL
1 stop11h 50mSouthwest
Mon 1/56:50 amHRL - DCA
1 stop9h 10mSouthwest
Deal found 10/29$458
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:00 pmDCA - HRL
1 stop11h 30mSouthwest
Mon 1/56:50 amHRL - DCA
1 stop9h 10mSouthwest
Deal found 10/28$468
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:10 amDCA - HRL
1 stop11h 50mSouthwest
Sun 1/45:50 amHRL - DCA
2 stops8h 40mSouthwest
Deal found 10/29$494
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:35 pmDCA - HRL
1 stop5h 20mSouthwest
Mon 12/2912:00 pmHRL - DCA
1 stop5h 00mSouthwest
Deal found 10/30$514
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/298:09 amIAD - HRL
2 stops10h 56mAmerican Airlines
Wed 11/55:40 amHRL - IAD
2 stops10h 09mAmerican Airlines
Deal found 10/28$529
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:04 amIAD - HRL
1 stop6h 34mAmerican Airlines
Fri 11/284:08 pmHRL - IAD
1 stop5h 33mAmerican Airlines
Deal found 10/30$639

Cheap flight deals from District of Columbia to Harlingen

Keep the following information in mind while searching for District of Columbia to Harlingen flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(United Airlines)
Provider with most accurate pricing for Washington, D.C. (WAS)-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Harlingen Valley Intl flights.
Search Deals
From District of Columbia to Harlingen Valley Intl
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from District of Columbia to Harlingen that are best for you.

Fly from

District of Columbia

Fly to

Harlingen

Route

Depart

Return

Price

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/18

11:00 am-4:04 pm

1 stop6h 04m

Harlingen Valley Intl

Wed 2/25

9:20 am-3:55 pm

1 stop5h 35m

$251

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Wed 2/18

12:50 pm-7:58 pm

1 stop8h 08m

Harlingen Valley Intl

Thu 2/26

12:10 pm-8:41 pm

1 stop7h 31m

$264

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Wed 2/18

11:24 am-10:51 pm

2 stops12h 27m

Harlingen Valley Intl

Thu 2/26

10:37 am-5:02 pm

1 stop5h 25m

$289

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/18

10:35 am-6:00 pm

2 stops8h 25m

Harlingen Valley Intl

Wed 2/25

6:30 am-2:15 pm

2 stops6h 45m

$327

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

7:40 am-2:29 pm

1 stop7h 49m

Harlingen Valley Intl

Wed 3/11

3:00 pm-11:33 pm

1 stop7h 33m

$329

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

1:44 pm-12:04 am

2 stops11h 20m

Harlingen Valley Intl

Wed 3/11

4:12 pm-12:40 am

1 stop7h 28m

$354

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 3/13

8:00 am-3:34 pm

1 stop8h 34m

Harlingen Valley Intl

Tue 3/17

9:20 am-3:54 pm

1 stop5h 34m

$369

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Fri 3/13

6:00 am-10:59 am

1 stop5h 59m

Harlingen Valley Intl

Tue 3/17

11:55 am-9:05 pm

1 stop8h 10m

$369

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 3/3

5:37 pm-10:51 pm

1 stop6h 14m

Harlingen Valley Intl

Thu 3/5

10:37 am-5:02 pm

1 stop5h 25m

$375

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 11/21

11:55 am-7:30 pm

1 stop8h 35m

Harlingen Valley Intl

Fri 11/28

10:13 am-6:42 pm

1 stop7h 29m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 15 results
1
2

Best time to book a flight from District of Columbia to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Harlingen

What is the cheapest month to book a flight from District of Columbia to Harlingen, Texas?

Currently, May is the cheapest month in which you can book a flight from District of Columbia to Harlingen, Texas (average of $210). Flying from District of Columbia to Harlingen, Texas in October is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to HRL?

Find hourly flight availability from District of Columbia to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 21% on flights from District of Columbia to Harlingen, Texas by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Harlingen from District of Columbia?

    Most people fly into Harlingen Valley Intl (HRL) if they book a flight to Harlingen from District of Columbia. Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.

  • How long is the flight from District of Columbia to Harlingen, Texas?

    Airlines like United Airlines, American Airlines, and Southwest fly from District of Columbia to Harlingen, Texas in about 6h 04m. The time it takes to get you to your destination can typically vary by up to 6h 23m. Airlines will cover a distance of 1477 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from District of Columbia to Harlingen that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Harlingen.

  • Can I find deals for business class flights from District of Columbia to Harlingen?

    Yes. Cheapflights offers flight deals from District of Columbia to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Harlingen, Texas?

    Currently, May is the cheapest month in which you can book a flight from District of Columbia to Harlingen, Texas (average of $210). Flying from District of Columbia to Harlingen, Texas in October is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
LaGuardia to Hobby flights
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
Newark to Hobby flights
Seattle to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
O'Hare Intl to Dallas/Fort Worth flights
Boston to Dallas/Fort Worth flights
Minneapolis to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
John F Kennedy Intl to Austin flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to George Bush Intcntl flights
Ontario to Dallas/Fort Worth flights
LaGuardia to George Bush Intcntl flights
Reagan-National to Hobby flights
Dulles Intl to Hobby flights
Seattle to Hobby flights
Philadelphia to Dallas/Fort Worth flights
Fort Lauderdale to Dallas/Fort Worth flights
Baltimore to Hobby flights
Newark to Austin flights
Midway to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to Hobby flights
Atlanta to Dallas/Fort Worth flights
Raleigh to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
San Francisco to Hobby flights
Salt Lake City to Dallas/Fort Worth flights
Ontario to Hobby flights
O'Hare Intl to Hobby flights
Boston to Hobby flights
Seattle to George Bush Intcntl flights
Dulles Intl to George Bush Intcntl flights
Charlotte to Dallas/Fort Worth flights
Orlando to Dallas/Fort Worth flights
Los Angeles to Austin flights
Los Angeles to George Bush Intcntl flights
O'Hare Intl to George Bush Intcntl flights
LaGuardia to Love Field flights
Dallas/Fort Worth to Hobby flights
Denver to Hobby flights
Dallas/Fort Worth to George Bush Intcntl flights

Top 2 airlines flying from District of Columbia to Harlingen

Discover the top 2 airlines that operate flights from District of Columbia to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$210Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$228Average$343FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.