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District of Columbia

$235+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — IAD
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 11/143:39 pmHRL - DCA
1 stop6h 52mDelta
Sat 11/158:25 amDCA - HRL
1 stop7h 18mDelta
Deal found 10/31$339
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 11/143:39 pmHRL - IAD
1 stop7h 13mDelta
Sun 11/166:03 amIAD - HRL
1 stop9h 40mDelta
Deal found 10/31$339
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 11/143:39 pmHRL - DCA
1 stop6h 52mDelta
Thu 11/206:06 amDCA - HRL
2 stops9h 37mDelta
Deal found 10/31$344
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 11/143:39 pmHRL - IAD
1 stop7h 13mDelta
Sat 11/156:00 amIAD - HRL
2 stops9h 43mDelta
Deal found 10/31$344
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/1510:21 amHRL - DCA
2 stops7h 39mAmerican Airlines
Wed 11/1910:15 amDCA - HRL
2 stops8h 55mAmerican Airlines
Deal found 10/31$349
This Delta deal was found by Cheapflights users on 10/31. 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.
Sat 11/83:39 pmHRL - DCA
1 stop6h 46mDelta
Sat 11/156:10 amDCA - HRL
1 stop9h 33mDelta
Deal found 10/31$374
This Delta deal was found by Cheapflights users on 10/31. 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.
Sat 11/83:39 pmHRL - IAD
1 stop7h 00mDelta
Sun 11/166:03 amIAD - HRL
1 stop9h 40mDelta
Deal found 10/31$374
This Delta deal was found by Cheapflights users on 10/31. 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.
Thu 11/133:39 pmHRL - DCA
1 stop6h 52mDelta
Thu 11/206:06 amDCA - HRL
2 stops9h 37mDelta
Deal found 10/31$379
This Delta deal was found by Cheapflights users on 10/31. 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.
Sat 11/83:39 pmHRL - IAD
1 stop7h 00mDelta
Sat 11/156:00 amIAD - HRL
2 stops9h 43mDelta
Deal found 10/31$379
This Delta deal was found by Cheapflights users on 10/31. 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.
Sun 11/93:39 pmHRL - IAD
1 stop7h 13mDelta
Sat 11/156:03 amIAD - HRL
1 stop9h 40mDelta
Deal found 10/31$404
This Delta deal was found by Cheapflights users on 10/31. 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.
Sat 11/83:39 pmHRL - IAD
1 stop7h 00mDelta
Thu 11/206:00 amIAD - HRL
2 stops9h 43mDelta
Deal found 10/31$409
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 11/143:39 pmHRL - DCA
1 stop6h 52mDelta
Fri 11/216:10 amDCA - HRL
1 stop9h 33mDelta
Deal found 10/31$419

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$299
(Delta)

One-way from

$235
(Delta)
Provider with most accurate pricing for Harlingen Valley Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-Washington, D.C. (WAS) flights.
Search Deals
From Harlingen Valley Intl to District of Columbia
Search Deals
One-way flight from Harlingen Valley Intl to District of Columbia
Search Deals

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 November 3, 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

Tue 3/10

3:00 pm-11:33 pm

1 stop7h 33m

Washington, D.C. Reagan-National

Wed 3/11

7:40 am-2:29 pm

1 stop7h 49m

$299

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 11/14

3:39 pm-11:31 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Sat 11/15

8:25 am-2:43 pm

1 stop7h 18m

$339

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 11/14

3:39 pm-11:31 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Thu 11/20

6:10 am-2:43 pm

1 stop9h 33m

$339

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 11/14

3:39 pm-11:52 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

Sat 11/15

6:03 am-2:43 pm

1 stop9h 40m

$339

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 11/14

3:39 pm-11:52 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

Sun 11/16

6:03 am-2:43 pm

1 stop9h 40m

$339

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 11/13

3:39 pm-11:31 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Sat 11/15

8:25 am-2:43 pm

1 stop7h 18m

$374

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 11/13

3:39 pm-11:31 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Sun 11/16

6:10 am-2:43 pm

1 stop9h 33m

$374

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 11/13

3:39 pm-11:31 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Thu 11/20

6:10 am-2:43 pm

1 stop9h 33m

$374

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Thu 11/13

3:39 pm-11:52 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

Sun 11/16

6:03 am-2:43 pm

1 stop9h 40m

$374

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 11/14

3:39 pm-11:52 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

Thu 11/20

6:00 am-2:43 pm

2 stops9h 43m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 20 results
1
2

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, September is the cheapest month in which you can book a flight from Harlingen, Texas to District of Columbia (average of $253). Flying from Harlingen, Texas to District of Columbia in June is currently the most expensive (average of $384). 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.

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 November 3, 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
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
8,997 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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 7h 33m. Harlingen, Texas and District of Columbia are separated by a distance of 1477 mi.

  • 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, September is the cheapest month in which you can book a flight from Harlingen, Texas to District of Columbia (average of $253). Flying from Harlingen, Texas to District of Columbia in June is currently the most expensive (average of $384). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$155Average$421FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$270Average$402FlexibilityNo cancel feeOn-time69%

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