What are the cheapest airlines flying from Harlingen, Texas to Washington, D.C. round-trip?

American Airlines, at $321, was found to be the cheapest airline from Harlingen, Texas to Washington, D.C.. An alternate airline flying to your destination would be United Airlines. American Airlines is 6% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Harlingen, Texas to Washington, D.C. one-way?

One-way options have recently been found by users for as low as $190 on American Airlines. Other airlines that offer cheap prices include United Airlines from $199 and Southwest from $215 one-way.

What is the cheapest day to fly from Harlingen, Texas to Washington, D.C.?

Travelers seeking maximum savings on their Harlingen, Texas to Washington, D.C. flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Harlingen, Texas to Washington, D.C.?

When deciding which route to take from Harlingen, Texas to Washington, D.C. consider Harlingen Valley Intl - Washington, D.C. Reagan-National, Harlingen Valley Intl - Washington, D.C. Dulles Intl or Harlingen Valley Intl - Baltimore/Washington as they are the most popular.

What is the cheapest day to fly round-trip from Harlingen, Texas to Washington, D.C.?

Saturday flights are found to be more expensive to fly from Harlingen, Texas to Washington, D.C.. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

What is the cheapest month to fly from Harlingen, Texas to Washington, D.C.?

Our data shows that September tends to be the cheapest month to fly to Washington, D.C. from Harlingen, Texas. Users have commonly found prices around $342 for the month, but tickets can be as low as $226. Due to multiple factors, prepare for potentially higher prices in January.

What airport do you fly from for flights from Harlingen to Washington, D.C.?

Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Washington, D.C.. 2 airlines have flights from Valley Intl to Washington, D.C. on a regular basis. Booking flights from Harlingen Valley Intl to Washington, D.C. should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. per day.

Can I find deals for flights from Harlingen to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Harlingen to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Harlingen to Washington, D.C.?

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

Can I find deals for business class flights from Harlingen to Washington, D.C.?

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

$190+ Flights from Harlingen, TX to Washington, D.C.

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Cheap flight deals from Harlingen to Washington, D.C.

Round-trip from	$321 (American Airlines)
One-way from	$190 (American Airlines)
Popular in	January
Cheapest in	September
Average price	$336

From Harlingen Valley Intl to Washington, D.C. (WAS)

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One-way flight from Harlingen Valley Intl to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Harlingen to Washington, D.C.

Cheapest flights from Harlingen to Washington, D.C.
Explore the most affordable flight options available from Harlingen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Fri 8/152:47 pmHRL - BWI

1 stop7h 15mAmerican Airlines

Tue 8/197:58 amBWI - HRL

2 stops11h 02mAmerican Airlines

Deal found 7/31

$321

Sun 9/145:00 amHRL - IAD

1 stop5h 28mUnited Airlines

Tue 9/164:10 pmIAD - HRL

1 stop6h 42mUnited Airlines

Deal found 7/30

$347

Fri 8/82:47 pmHRL - DCA

1 stop7h 12mAmerican Airlines

Sun 8/107:31 pmDCA - HRL

1 stop5h 24mAmerican Airlines

Deal found 7/29

$379

Sun 9/146:19 pmHRL - IAD

2 stops14h 48mAmerican Airlines

Tue 9/166:25 amIAD - HRL

1 stop8h 54mAmerican Airlines

Deal found 7/30

$405

Tue 8/512:20 pmHRL - BWI

1 stop8h 35mSouthwest

Tue 8/126:20 amBWI - HRL

1 stop6h 25mSouthwest

Deal found 7/31

$413

Tue 8/52:10 pmHRL - DCA

2 stops8h 05mSouthwest

Tue 8/126:05 amDCA - HRL

1 stop6h 40mSouthwest

Deal found 7/31

$454

Thu 8/71:59 pmHRL - DCA

1 stop7h 16mUnited Airlines

Mon 8/112:54 pmDCA - HRL

1 stop5h 41mUnited Airlines

Deal found 7/30

$595

Thu 8/145:10 amHRL - BWI

1 stop5h 45mUnited Airlines

Mon 8/182:54 pmBWI - HRL

1 stop7h 56mUnited Airlines

Deal found 7/30

$628

Best flights from Harlingen to Washington, D.C.
Discover carefully curated flight deals from Harlingen to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2025.

Fri 8/152:47 pmHRL - BWI

1 stop7h 15mAmerican Airlines

Tue 8/197:58 amBWI - HRL

2 stops11h 02mAmerican Airlines

Deal found 7/31

$321

Sun 9/145:00 amHRL - IAD

1 stop5h 28mUnited Airlines

Tue 9/164:10 pmIAD - HRL

1 stop6h 42mUnited Airlines

Deal found 7/30

$347

Sun 9/146:19 pmHRL - IAD

2 stops14h 48mAmerican Airlines

Tue 9/166:25 amIAD - HRL

1 stop8h 54mAmerican Airlines

Deal found 7/30

$405

Thu 8/145:10 amHRL - BWI

1 stop5h 45mUnited Airlines

Mon 8/182:54 pmBWI - HRL

1 stop7h 56mUnited Airlines

Deal found 7/30

$628

Last-minute flights from Harlingen to Washington, D.C.
Discover last-minute flight deals from Harlingen to Washington, D.C.. Data last updated August 1, 2025 and is based on user searches.

Thu 7/3110:07 amHRL - IAD

1 stop6h 31mAmerican Airlines

Tue 8/511:49 amIAD - HRL

1 stop8h 37mAmerican Airlines

Deal found 7/30

$439

Tue 8/512:20 pmHRL - BWI

1 stop8h 35mSouthwest

Tue 8/126:20 amBWI - HRL

1 stop6h 25mSouthwest

Deal found 7/31

$413

Tue 8/52:10 pmHRL - DCA

2 stops8h 05mSouthwest

Tue 8/126:05 amDCA - HRL

1 stop6h 40mSouthwest

Deal found 7/31

$454

Tue 8/51:59 pmHRL - IAD

1 stop7h 19mUnited Airlines

Tue 8/126:10 amIAD - HRL

1 stop8h 10mUnited Airlines

Deal found 7/31

$564

Thu 8/71:59 pmHRL - DCA

1 stop7h 16mUnited Airlines

Mon 8/112:54 pmDCA - HRL

1 stop5h 41mUnited Airlines

Deal found 7/30

$595

Thu 8/75:20 pmHRL - IAD

1 stop5h 38mUnited Airlines

Mon 8/116:10 amIAD - HRL

1 stop8h 10mUnited Airlines

Deal found 7/30

$798

Thu 8/75:10 amHRL - BWI

1 stop5h 45mUnited Airlines

Mon 8/112:54 pmBWI - HRL

1 stop5h 41mUnited Airlines

Deal found 7/30

$824

Fri 8/82:47 pmHRL - DCA

1 stop7h 12mAmerican Airlines

Sun 8/107:31 pmDCA - HRL

1 stop5h 24mAmerican Airlines

Deal found 7/29

$379

Fri 8/810:02 amHRL - IAD

1 stop7h 54mAmerican Airlines

Sun 8/106:27 amIAD - HRL

1 stop8h 48mAmerican Airlines

Deal found 7/29

$589

Thu 8/145:10 amHRL - BWI

1 stop5h 45mUnited Airlines

Mon 8/182:54 pmBWI - HRL

1 stop7h 56mUnited Airlines

Deal found 7/30

$628

Fri 8/152:47 pmHRL - BWI

1 stop7h 15mAmerican Airlines

Tue 8/197:58 amBWI - HRL

2 stops11h 02mAmerican Airlines

Deal found 7/31

$321

One-way flights from Harlingen to Washington, D.C.
Search for one-way flight options from Harlingen to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 1, 2025.

Thu 8/710:02 amHRL - DCA

1 stop7h 52mAmerican Airlines

Deal found 7/29

$190

Fri 1/25:20 pmHRL - DCA

1 stop5h 29mUnited Airlines

Deal found 7/31

$199

Thu 8/71:40 pmHRL - DCA

2 stops7h 55mSouthwest

Deal found 7/29

$215

Fri 1/25:20 pmHRL - BWI

1 stop5h 38mUnited Airlines

Deal found 7/31

$220

Fri 1/212:15 pmHRL - IAD

1 stop7h 49mUnited Airlines

Deal found 7/31

$294

Sun 1/43:35 pmHRL - BWI

1 stop7h 16mDelta

Deal found 7/31

$390

Cheapflights Fare Finder

Use the filters below to find and compare flights from Harlingen to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 8/15

2:47 pm-11:02 pm

1 stop7h 15m

Baltimore/Washington

Tue 8/19

7:58 am-6:00 pm

2 stops11h 02m

$321

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sun 9/14

5:00 am-11:28 am

1 stop5h 28m

Washington, D.C. Dulles Intl

Tue 9/16

4:10 pm-9:52 pm

1 stop6h 42m

$347

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sun 9/14

6:19 pm-10:07 am

2 stops14h 48m

Washington, D.C. Dulles Intl

Tue 9/16

6:25 am-2:19 pm

1 stop8h 54m

$405

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Thu 8/14

5:10 am-11:55 am

1 stop5h 45m

Baltimore/Washington

Mon 8/18

2:54 pm-9:50 pm

1 stop7h 56m

$628

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 8/7

10:02 am-6:54 pm

1 stop7h 52m

$190

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 1/2

5:20 pm-11:49 pm

1 stop5h 29m

$199

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 8/7

1:40 pm-10:35 pm

2 stops7h 55m

$215

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 1/2

5:20 pm-11:58 pm

1 stop5h 38m

$220

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 1/2

12:15 pm-9:04 pm

1 stop7h 49m

$294

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sun 1/4

3:35 pm-11:51 pm

1 stop7h 16m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Harlingen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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 Washington, D.C.

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. (average of $241). Flying from Harlingen, Texas to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

It’s optimal to fly from Harlingen, Texas to Washington, D.C. in the morning. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Harlingen to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,981 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

United Airlines

7.4

Good

8,900 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

What airport do you fly from for flights from Harlingen to Washington, D.C.?
Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Washington, D.C.. 2 airlines have flights from Valley Intl to Washington, D.C. on a regular basis. Booking flights from Harlingen Valley Intl to Washington, D.C. should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. per day.
What are the cheapest airlines flying from Harlingen, Texas to Washington, D.C. round-trip?
American Airlines, at $321, was found to be the cheapest airline from Harlingen, Texas to Washington, D.C.. An alternate airline flying to your destination would be United Airlines. American Airlines is 6% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Harlingen, Texas to Washington, D.C. one-way?
One-way options have recently been found by users for as low as $190 on American Airlines. Other airlines that offer cheap prices include United Airlines from $199 and Southwest from $215 one-way.
What are the most popular routes from Harlingen, Texas to Washington, D.C.?
When deciding which route to take from Harlingen, Texas to Washington, D.C. consider Harlingen Valley Intl - Washington, D.C. Reagan-National, Harlingen Valley Intl - Washington, D.C. Dulles Intl or Harlingen Valley Intl - Baltimore/Washington as they are the most popular.
Can I find deals for flights from Harlingen to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Harlingen to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harlingen to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Washington, D.C..
Can I find deals for business class flights from Harlingen to Washington, D.C.?
Yes. Cheapflights offers flight deals from Harlingen to Washington, D.C. 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 Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. (average of $241). Flying from Harlingen, Texas to Washington, D.C. in March is currently the most expensive (average of $290). 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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Fairfax

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Top 2 airlines flying from Harlingen to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$155	Average$417	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$306	Average$517	FlexibilityNo cancel fee	On-time69%

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$190+ Cheap flights from Harlingen, TX (HRL) to Washington, D.C. (WAS)

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Harlingen to Washington, D.C.

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Popular in

Cheapest in

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Find flight deals from Harlingen to Washington, D.C.

Cheapest flights from Harlingen to Washington, D.C.Explore the most affordable flight options available from Harlingen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Explore the most affordable flight options available from Harlingen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Harlingen to Washington, D.C. that are best for you.

Best time to book a flight from Harlingen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Harlingen with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Washington, D.C.

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C.?

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

Find hourly flight availability from Harlingen to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Harlingen to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Washington, D.C.. 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 Washington, D.C.?

What are the cheapest airlines flying from Harlingen, Texas to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Harlingen, Texas to Washington, D.C. one-way?

What are the most popular routes from Harlingen, Texas to Washington, D.C.?

Can I find deals for flights from Harlingen to Washington, D.C. that include hotel bookings?

How can I find direct flights from Harlingen to Washington, D.C.?

Can I find deals for business class flights from Harlingen to Washington, D.C.?

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C.?

Traveling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Harlingen to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Harlingen to Washington, D.C.

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Cheapest flights from Harlingen to Washington, D.C.
Explore the most affordable flight options available from Harlingen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.