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District of Columbia

$190+ Cheap flights from Harlingen, TX (HRL) to District of Columbia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Harlingen to District of Columbia

Keep the following information in mind while searching for Harlingen to District of Columbia flight deals. Data was last updated September 16, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$190
(Southwest)

Popular in

January

Cheapest in

February

Average price

$357
From Harlingen Valley Intl to District of Columbia
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One-way flight from Harlingen Valley Intl to District of Columbia
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Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Harlingen to District of Columbia

Cheapest flights from Harlingen to District of Columbia
Explore the most affordable flight options available from Harlingen to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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 12/55:36 amHRL - DCA
1 stop5h 23mAmerican Airlines
Mon 12/86:30 amDCA - HRL
1 stop6h 10mAmerican Airlines
Deal found 9/14$269
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 12/512:16 pmHRL - IAD
1 stop7h 26mUnited Airlines
Mon 12/86:00 amIAD - HRL
1 stop6h 04mUnited Airlines
Deal found 9/14$345
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/276:35 pmHRL - DCA
1 stop5h 25mAmerican Airlines
Sat 10/45:00 amDCA - HRL
1 stop5h 41mAmerican Airlines
Deal found 9/14$349
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/275:00 amHRL - IAD
1 stop5h 38mUnited Airlines
Sat 10/412:50 pmIAD - HRL
1 stop7h 51mUnited Airlines
Deal found 9/14$398
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/275:00 amHRL - DCA
2 stops8h 01mUnited Airlines
Sat 10/411:00 amDCA - HRL
1 stop6h 13mUnited Airlines
Deal found 9/14$638

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to District of Columbia 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 September 16, 2025.
Use the filters below to find and compare flights from Harlingen to District of Columbia that are best for you.

Fly from

Harlingen

Fly to

District of Columbia

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 12/5

5:36 am-11:59 am

1 stop5h 23m

Washington, D.C. Reagan-National

Mon 12/8

6:30 am-11:40 am

1 stop6h 10m

$269

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 3/10

3:00 pm-10:17 pm

1 stop6h 17m

Washington, D.C. Reagan-National

Wed 3/11

6:10 am-2:29 pm

1 stop9h 19m

$319

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 12/5

12:16 pm-8:42 pm

1 stop7h 26m

Washington, D.C. Dulles Intl

Mon 12/8

6:00 am-11:04 am

1 stop6h 04m

$345

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 9/27

6:35 pm-1:00 am

1 stop5h 25m

Washington, D.C. Reagan-National

Sat 10/4

5:00 am-9:41 am

1 stop5h 41m

$349

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 3/10

12:10 pm-9:07 pm

2 stops7h 57m

Washington, D.C. Reagan-National

Wed 3/11

5:00 am-11:35 am

1 stop7h 35m

$394

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sat 9/27

5:00 am-11:38 am

1 stop5h 38m

Washington, D.C. Dulles Intl

Sat 10/4

12:50 pm-7:41 pm

1 stop7h 51m

$398

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 9/27

5:00 am-2:01 pm

2 stops8h 01m

Washington, D.C. Reagan-National

Sat 10/4

11:00 am-4:13 pm

1 stop6h 13m

$638

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 9/23

2:10 pm-11:15 pm

2 stops8h 05m

$195

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sun 9/21

2:05 pm-8:52 pm

1 stop5h 47m

$250

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Tue 9/23

2:05 pm-11:24 am

2 stops20h 19m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 11 results
1
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Best time to book a flight from Harlingen to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Harlingen 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 Harlingen to District of Columbia

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

Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to District of Columbia (average of $292). Flying from Harlingen, Texas to District of Columbia in April is currently the most expensive (average of $337). 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 HRL to DC?

Find hourly flight availability from Harlingen to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Harlingen, Texas to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated September 16, 2025.
See what other customers who have flown with Southwest and United Airlines from Harlingen to District of Columbia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Harlingen to District of Columbia. 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 from for flights from Harlingen to District of Columbia?

    Located just 3.7 mi from the city center, Harlingen Valley Intl (HRL) is the airport most travelers will use when flying to District of Columbia from Harlingen.

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

    Departing from Harlingen, Texas to District of Columbia will take you 5h 23m. Harlingen, Texas and District of Columbia are separated by a distance of 1477 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Harlingen to District of Columbia 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 Harlingen, Texas to District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to District of Columbia (average of $292). Flying from Harlingen, Texas to District of Columbia in April is currently the most expensive (average of $337). 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

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Alternative routes for Harlingen to District of Columbia

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Top 2 airlines flying from Harlingen to District of Columbia

Discover the top 2 airlines that operate flights from Harlingen to District of Columbia. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$155Average$417FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$270Average$438FlexibilityNo cancel feeOn-time69%

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