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Cheap flights from Washington, D.C. to Harlingen from $164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Harlingen departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:41 pm - 11:21 pm
BWI
-
HRL
8h 40m
1 stop
American Airlines Logo
3:22 pm - 11:10 pm
HRL
-
BWI
6h 48m
1 stop
$289American Airlines
Sat, Feb 7 - Wed, Feb 11
American Airlines Logo
11:13 am - 6:14 pm
BWI
-
HRL
8h 01m
2 stops
American Airlines Logo
3:22 pm - 11:10 pm
HRL
-
BWI
6h 48m
1 stop
$294American Airlines
Sat, Feb 7 - Wed, Feb 11
American Airlines Logo
4:59 pm - 11:21 pm
DCA
-
HRL
7h 22m
1 stop
American Airlines Logo
3:22 pm - 11:00 pm
HRL
-
DCA
6h 38m
1 stop
$301American Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
6:03 am - 11:26 am
IAD
-
HRL
6h 23m
1 stop
United Airlines Logo
5:18 pm - 11:59 pm
HRL
-
IAD
5h 41m
1 stop
$304United Airlines
Sat, Feb 7 - Sat, May 2
Southwest Logo
8:10 am - 2:45 pm
BWI
-
HRL
7h 35m
1 stop
Southwest Logo
6:05 am - 5:15 pm
HRL
-
BWI
10h 10m
2 stops
$313Southwest
Sat, Feb 7 - Sat, May 2
Southwest Logo
8:10 am - 2:45 pm
BWI
-
HRL
7h 35m
1 stop
Southwest Logo
6:05 am - 5:25 pm
HRL
-
BWI
10h 20m
1 stop
$314Southwest
Sat, Feb 7 - Sat, May 2
Southwest Logo
2:05 pm - 9:30 pm
BWI
-
HRL
8h 25m
2 stops
Southwest Logo
7:00 am - 5:25 pm
HRL
-
BWI
9h 25m
2 stops
$319Southwest
Sat, Feb 7 - Sat, May 2
United Airlines Logo
4:28 pm - 9:59 pm
DCA
-
HRL
6h 31m
1 stop
United Airlines Logo
5:25 pm - 11:59 pm
HRL
-
DCA
5h 34m
1 stop
$339United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:00 am - 11:26 am
IAD
-
HRL
6h 26m
1 stop
United Airlines Logo
12:10 pm - 8:49 pm
HRL
-
IAD
7h 39m
1 stop
$339United Airlines
Sun, Feb 8 - Mon, Feb 9
Southwest Logo
3:45 pm - 9:50 pm
BWI
-
HRL
7h 05m
2 stops
Southwest Logo
6:35 am - 3:45 pm
HRL
-
BWI
8h 10m
1 stop
$348Southwest
Sun, Feb 8 - Mon, Feb 9

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

Our best United Airlines deals on Washington, D.C. to Harlingen, Texas flight tickets
United Airlines
Feb 7
IAD6:03 amWashington, D.C. Dulles Intl
6h 23m
1 stop
HRL11:26 amHarlingen Valley Intl
May 2
HRL5:18 pmHarlingen Valley Intl
5h 41m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$304
United Airlines
Feb 4
DCA4:28 pmWashington, D.C. Reagan-National
6h 31m
1 stop
HRL9:59 pmHarlingen Valley Intl
Feb 8
HRL5:25 pmHarlingen Valley Intl
5h 34m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$339
United Airlines
Feb 7
IAD6:03 amWashington, D.C. Dulles Intl
6h 23m
1 stop
HRL11:26 amHarlingen Valley Intl
Feb 11
HRL12:10 pmHarlingen Valley Intl
7h 39m
1 stop
IAD8:49 pmWashington, D.C. Dulles Intl
$385

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

Our best Southwest deals on Washington, D.C. to Harlingen, Texas flight tickets
Southwest
Feb 7
BWI8:10 amBaltimore/Washington
7h 35m
1 stop
HRL2:45 pmHarlingen Valley Intl
May 2
HRL6:05 amHarlingen Valley Intl
10h 10m
2 stops
BWI5:15 pmBaltimore/Washington
$313
Southwest
Feb 7
BWI8:10 amBaltimore/Washington
7h 35m
1 stop
HRL2:45 pmHarlingen Valley Intl
May 2
HRL6:05 amHarlingen Valley Intl
10h 20m
1 stop
BWI5:25 pmBaltimore/Washington
$314
Southwest
Feb 7
BWI2:05 pmBaltimore/Washington
8h 25m
2 stops
HRL9:30 pmHarlingen Valley Intl
May 2
HRL7:00 amHarlingen Valley Intl
9h 25m
2 stops
BWI5:25 pmBaltimore/Washington
$319

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Harlingen, Texas 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 January 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/7

3:41 pm-11:21 pm

1 stop8h 40m

Harlingen Valley Intl

Wed 2/11

3:22 pm-11:10 pm

1 stop6h 48m

$289

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/7

11:13 am-6:14 pm

2 stops8h 01m

Harlingen Valley Intl

Wed 2/11

3:22 pm-11:10 pm

1 stop6h 48m

$294

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 2/7

4:59 pm-11:21 pm

1 stop7h 22m

Harlingen Valley Intl

Wed 2/11

3:22 pm-11:00 pm

1 stop6h 38m

$301

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sat 2/7

6:03 am-11:26 am

1 stop6h 23m

Harlingen Valley Intl

Sat 5/2

5:18 pm-11:59 pm

1 stop5h 41m

$304

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/7

8:10 am-2:45 pm

1 stop7h 35m

Harlingen Valley Intl

Sat 5/2

6:05 am-5:15 pm

2 stops10h 10m

$313

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/7

8:10 am-2:45 pm

1 stop7h 35m

Harlingen Valley Intl

Sat 5/2

6:05 am-5:25 pm

1 stop10h 20m

$314

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/7

2:05 pm-9:30 pm

2 stops8h 25m

Harlingen Valley Intl

Sat 5/2

7:00 am-5:25 pm

2 stops9h 25m

$319

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/4

4:28 pm-9:59 pm

1 stop6h 31m

Harlingen Valley Intl

Sun 2/8

5:25 pm-11:59 pm

1 stop5h 34m

$339

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sun 2/8

6:00 am-11:26 am

1 stop6h 26m

Harlingen Valley Intl

Mon 2/9

12:10 pm-8:49 pm

1 stop7h 39m

$339

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sun 2/8

3:45 pm-9:50 pm

2 stops7h 05m

Harlingen Valley Intl

Mon 2/9

6:35 am-3:45 pm

1 stop8h 10m

$348

Flights are sorted by cheapest round-trip flights first.

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

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

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

You could potentially save up to 4% on your flight if you consider stops on a Washington, D.C. to Harlingen, Texas flight.

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

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

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

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

Fastest flight time

6h 15m

Direct flights

None
The fastest flight from Washington, D.C. to Harlingen, Texas takes 6h 15m
There are no direct flights from Washington, D.C. to Harlingen, Texas. There are no popular flight routes from Washington, D.C. to Harlingen, Texas.
Search flight deals

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

    The distance between Washington, D.C. and Harlingen Valley Intl is about 1482.9 mi. By plane, this route typically takes 6h 15m.

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

    Prices for flights from Washington, D.C. to Harlingen Valley Intl Airport refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The required travel and health documents for your Harlingen Valley Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Harlingen Valley Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Harlingen, Texas with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $228Free CancellationRating
8.0
4,266 reviews
Search Southwest flights

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Harlingen. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Harlingen flights to just show those with flexible booking policies.

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

Once you have performed a search for Washington, D.C. to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Washington, D.C. to Harlingen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harlingen and let you know when they change.

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