Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Harlingen, Texas to Washington, D.C. from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Washington, D.C. departing on 12/3. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Harlingen, Texas to Washington, D.C.

Cheap round-trip flights

United Airlines Logo
12:10 pm - 8:51 pmHRL-IAD
7h 41m1 stop
United Airlines Logo
6:00 am - 10:59 amIAD-HRL
5h 59m1 stop
$230United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
Delta Logo
3:39 pm - 11:25 pmHRL-DCA
6h 46m1 stop
Delta Logo
6:10 am - 2:43 pmDCA-HRL
9h 33m1 stop
$260Delta
Find Deal
Sat, Nov 1 - Mon, Nov 3
Delta Logo
3:39 pm - 11:39 pmHRL-IAD
7h 00m1 stop
Delta Logo
6:18 am - 2:43 pmIAD-HRL
9h 25m1 stop
$260Delta
Find Deal
Sat, Nov 1 - Mon, Nov 3
United Airlines Logo
5:00 am - 11:29 amHRL-DCA
5h 29m1 stop
United Airlines Logo
6:00 am - 10:59 amDCA-HRL
5h 59m1 stop
$264United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
United Airlines Logo
12:10 pm - 8:52 pmHRL-IAD
7h 42m1 stop
United Airlines Logo
6:00 am - 10:59 amIAD-HRL
5h 59m1 stop
$264United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
Delta Logo
3:39 pm - 11:49 pmHRL-BWI
7h 10m1 stop
Delta Logo
6:00 am - 2:43 pmBWI-HRL
9h 43m1 stop
$277Delta
Find Deal
Sat, Nov 1 - Mon, Nov 3
Southwest Logo
6:40 am - 3:10 pmHRL-BWI
7h 30m2 stops
Southwest Logo
12:35 pm - 9:05 pmBWI-HRL
9h 30m1 stop
$324Southwest
Find Deal
Sat, Nov 1 - Mon, Nov 3
American Airlines Logo
6:35 pm - 1:00 amHRL-DCA
5h 25m1 stop
American Airlines Logo
5:00 am - 9:41 amDCA-HRL
5h 41m1 stop
$328American Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
Southwest Logo
7:30 am - 3:10 pmHRL-BWI
6h 40m1 stop
Southwest Logo
12:35 pm - 9:05 pmBWI-HRL
9h 30m1 stop
$338Southwest
Find Deal
Sat, Nov 1 - Mon, Nov 3
American Airlines Logo
10:21 am - 6:17 pmHRL-BWI
6h 56m1 stop
American Airlines Logo
6:02 am - 11:40 amBWI-HRL
6h 38m1 stop
$359American Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10

United Airlines flights from Harlingen, Texas to Washington, D.C.

Our best United Airlines deals on Harlingen, Texas to Washington, D.C. flight tickets
United Airlines
Oct 31
HRL12:10 pmHarlingen Valley Intl
7h 41m
1 stop
IAD8:51 pmWashington, D.C. Dulles Intl
Nov 4
IAD6:00 amWashington, D.C. Dulles Intl
5h 59m
1 stop
HRL10:59 amHarlingen Valley Intl
$230
Find similar
United Airlines
Nov 1
HRL12:10 pmHarlingen Valley Intl
7h 42m
1 stop
IAD8:52 pmWashington, D.C. Dulles Intl
Nov 3
IAD6:00 amWashington, D.C. Dulles Intl
5h 59m
1 stop
HRL10:59 amHarlingen Valley Intl
$264
Find similar
United Airlines
Nov 6
HRL5:00 amHarlingen Valley Intl
5h 29m
1 stop
DCA11:29 amWashington, D.C. Reagan-National
Nov 10
DCA4:34 pmWashington, D.C. Reagan-National
6h 20m
1 stop
HRL9:54 pmHarlingen Valley Intl
$277
Find similar

Delta flights from Harlingen, Texas to Washington, D.C.

Our best Delta deals on Harlingen, Texas to Washington, D.C. flight tickets
Delta
Nov 1
HRL3:39 pmHarlingen Valley Intl
7h 00m
1 stop
IAD11:39 pmWashington, D.C. Dulles Intl
Nov 3
IAD6:18 amWashington, D.C. Dulles Intl
9h 25m
1 stop
HRL2:43 pmHarlingen Valley Intl
$260
Find similar
Delta
Nov 1
HRL3:39 pmHarlingen Valley Intl
7h 10m
1 stop
BWI11:49 pmBaltimore/Washington
Nov 3
BWI6:00 amBaltimore/Washington
9h 43m
1 stop
HRL2:43 pmHarlingen Valley Intl
$277
Find similar
Delta
Oct 23
HRL3:39 pmHarlingen Valley Intl
7h 10m
1 stop
BWI11:49 pmBaltimore/Washington
Oct 26
BWI6:00 amBaltimore/Washington
9h 43m
1 stop
HRL2:43 pmHarlingen Valley Intl
$283
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to Washington, D.C. 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 September 19, 2025.
Use the filters below to find and compare flights from Harlingen, Texas to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 10/31

12:10 pm-8:51 pm

1 stop7h 41m

Washington, D.C. Dulles Intl

Tue 11/4

6:00 am-10:59 am

1 stop5h 59m

$230

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 11/1

3:39 pm-11:25 pm

1 stop6h 46m

Washington, D.C. Reagan-National

Mon 11/3

6:10 am-2:43 pm

1 stop9h 33m

$260

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sat 11/1

3:39 pm-11:39 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

Mon 11/3

6:18 am-2:43 pm

1 stop9h 25m

$260

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 11/1

5:00 am-11:29 am

1 stop5h 29m

Washington, D.C. Reagan-National

Mon 11/3

6:00 am-10:59 am

1 stop5h 59m

$264

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Sat 11/1

12:10 pm-8:52 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Mon 11/3

6:00 am-10:59 am

1 stop5h 59m

$264

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 11/1

3:39 pm-11:49 pm

1 stop7h 10m

Baltimore/Washington

Mon 11/3

6:00 am-2:43 pm

1 stop9h 43m

$277

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 11/1

6:40 am-3:10 pm

2 stops7h 30m

Baltimore/Washington

Mon 11/3

12:35 pm-9:05 pm

1 stop9h 30m

$324

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 10/1

6:35 pm-1:00 am

1 stop5h 25m

Washington, D.C. Reagan-National

Sun 10/5

5:00 am-9:41 am

1 stop5h 41m

$328

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 11/1

7:30 am-3:10 pm

1 stop6h 40m

Baltimore/Washington

Mon 11/3

12:35 pm-9:05 pm

1 stop9h 30m

$338

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Thu 11/6

10:21 am-6:17 pm

1 stop6h 56m

Baltimore/Washington

Mon 11/10

6:02 am-11:40 am

1 stop6h 38m

$359

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Harlingen, Texas to Washington, D.C.

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 typical price of a round-trip flight between Harlingen, Texas and Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Harlingen, Texas is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $353. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Harlingen, Texas to Washington, D.C. for around $417.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Harlingen, Texas to Washington, D.C. when you can find flight prices for as low as $381. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $407. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Harlingen, Texas to Washington, D.C. flights?

You could potentially save up to 62% on your flight if you consider stops on a Harlingen, Texas to Washington, D.C. flight.

When to book flights from Harlingen, Texas to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Harlingen, Texas to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harlingen, Texas to Washington, D.C. (HRL to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen, Texas to Washington, D.C.

Direct flights

None
There are no direct flights from Harlingen, Texas to Washington, D.C.. There are no popular flight routes from Harlingen, Texas to Washington, D.C..
Search flight deals

  • How far is Harlingen Valley Intl to Washington, D.C. by plane?

    A flight from Harlingen Valley Intl to Washington, D.C. will travel around 1482.9 mi. By plane, this route typically takes 5h 05m.

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to Washington, D.C.?

    Prices for flights from Harlingen Valley Intl Airport to Washington, D.C. are refreshed on a daily basis.

  • How many operators does momondo search for flights from Harlingen Valley Intl Airport to Washington, D.C.?

  • How old do you have to be to fly from Harlingen Valley Intl Airport to Washington, D.C.?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Harlingen, Texas to Washington, D.C.?

Best airlines flying from Harlingen, Texas to Washington, D.C.

Compare and see reviews for airlines that fly from Harlingen, Texas to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $155Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Harlingen to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to Washington, D.C. for you.

Can I find flights from Harlingen to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Harlingen to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Harlingen to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Harlingen to Washington, D.C..

I’m not ready to book a flight from Harlingen to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Harlingen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 10/19
Sun 10/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport