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Cheap flights from Washington, D.C. Dulles Intl Airport to Harlingen from $205

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. Dulles Intl Airport to Harlingen departing on 2/21. 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. Dulles Intl Airport to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 2:05 pm
IAD
-
HRL
9h 05m
1 stop
American Airlines Logo
2:45 pm - 10:53 pm
HRL
-
IAD
7h 08m
1 stop
$347American Airlines
Tue, Feb 24 - Wed, Mar 4
American Airlines Logo
11:30 am - 11:03 pm
IAD
-
HRL
12h 33m
2 stops
American Airlines Logo
2:45 pm - 10:53 pm
HRL
-
IAD
7h 08m
1 stop
$359American Airlines
Tue, Feb 24 - Wed, Mar 4
United Airlines Logo
3:03 pm - 9:44 pm
IAD
-
HRL
7h 41m
1 stop
United Airlines Logo
5:16 pm - 12:32 am
HRL
-
IAD
6h 16m
1 stop
$381United Airlines
Mon, May 25 - Wed, Jun 3
American Airlines Logo
11:30 am - 11:03 pm
IAD
-
HRL
12h 33m
2 stops
American Airlines Logo
2:36 pm - 10:53 pm
HRL
-
IAD
7h 17m
1 stop
$414American Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
7:00 am - 2:39 pm
IAD
-
HRL
8h 39m
1 stop
Delta Logo
3:36 pm - 11:55 pm
HRL
-
IAD
7h 19m
1 stop
$419Delta
Thu, Feb 26 - Fri, Feb 27
American Airlines Logo
6:00 am - 2:14 pm
IAD
-
HRL
9h 14m
1 stop
American Airlines Logo
2:45 pm - 10:53 pm
HRL
-
IAD
7h 08m
1 stop
$422American Airlines
Mon, Feb 23 - Wed, Feb 25
American Airlines Logo
5:37 pm - 11:03 pm
IAD
-
HRL
6h 26m
1 stop
American Airlines Logo
6:00 am - 2:39 pm
HRL
-
IAD
7h 39m
2 stops
$427American Airlines
Mon, Feb 23 - Wed, Feb 25
United Airlines Logo
6:00 am - 11:16 am
IAD
-
HRL
6h 16m
1 stop
United Airlines Logo
5:25 pm - 11:51 pm
HRL
-
IAD
5h 26m
1 stop
$448United Airlines
Fri, Mar 6 - Sat, Mar 14
United Airlines Logo
8:15 am - 4:04 pm
IAD
-
HRL
8h 49m
1 stop
United Airlines Logo
12:10 pm - 8:41 pm
HRL
-
IAD
7h 31m
1 stop
$454United Airlines
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
11:30 am - 11:03 pm
IAD
-
HRL
12h 33m
2 stops
American Airlines Logo
6:00 am - 2:39 pm
HRL
-
IAD
7h 39m
2 stops
$457American Airlines
Tue, Feb 24 - Wed, Mar 4

American Airlines flights from Washington, D.C. Dulles Intl Airport to Harlingen, Texas

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Harlingen, Texas flight tickets
American Airlines
Feb 24
IAD6:00 amWashington, D.C. Dulles Intl
9h 05m
1 stop
HRL2:05 pmHarlingen Valley Intl
Mar 4
HRL2:45 pmHarlingen Valley Intl
7h 08m
1 stop
IAD10:53 pmWashington, D.C. Dulles Intl
$347
American Airlines
Feb 24
IAD11:30 amWashington, D.C. Dulles Intl
12h 33m
2 stops
HRL11:03 pmHarlingen Valley Intl
Mar 4
HRL2:45 pmHarlingen Valley Intl
7h 08m
1 stop
IAD10:53 pmWashington, D.C. Dulles Intl
$359
American Airlines
Feb 21
IAD6:00 amWashington, D.C. Dulles Intl
9h 14m
1 stop
HRL2:14 pmHarlingen Valley Intl
Feb 28
HRL2:45 pmHarlingen Valley Intl
7h 08m
1 stop
IAD10:53 pmWashington, D.C. Dulles Intl
$404

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Harlingen, Texas flight tickets
United Airlines
May 25
IAD3:03 pmWashington, D.C. Dulles Intl
7h 41m
1 stop
HRL9:44 pmHarlingen Valley Intl
Jun 3
HRL5:16 pmHarlingen Valley Intl
6h 16m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$381
United Airlines
Mar 6
IAD6:00 amWashington, D.C. Dulles Intl
6h 16m
1 stop
HRL11:16 amHarlingen Valley Intl
Mar 14
HRL5:25 pmHarlingen Valley Intl
5h 26m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
$448
United Airlines
Feb 24
IAD8:15 amWashington, D.C. Dulles Intl
8h 49m
1 stop
HRL4:04 pmHarlingen Valley Intl
Mar 3
HRL12:10 pmHarlingen Valley Intl
7h 31m
1 stop
IAD8:41 pmWashington, D.C. Dulles Intl
$454

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 February 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 2/24

6:00 am-2:05 pm

1 stop9h 05m

Harlingen Valley Intl

Wed 3/4

2:45 pm-10:53 pm

1 stop7h 08m

$347

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 2/24

11:30 am-11:03 pm

2 stops12h 33m

Harlingen Valley Intl

Wed 3/4

2:45 pm-10:53 pm

1 stop7h 08m

$359

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 5/25

3:03 pm-9:44 pm

1 stop7h 41m

Harlingen Valley Intl

Wed 6/3

5:16 pm-12:32 am

1 stop6h 16m

$381

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 2/24

11:30 am-11:03 pm

2 stops12h 33m

Harlingen Valley Intl

Tue 3/3

2:36 pm-10:53 pm

1 stop7h 17m

$414

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Thu 2/26

7:00 am-2:39 pm

1 stop8h 39m

Harlingen Valley Intl

Fri 2/27

3:36 pm-11:55 pm

1 stop7h 19m

$419

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 2/23

6:00 am-2:14 pm

1 stop9h 14m

Harlingen Valley Intl

Wed 2/25

2:45 pm-10:53 pm

1 stop7h 08m

$422

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 2/23

5:37 pm-11:03 pm

1 stop6h 26m

Harlingen Valley Intl

Wed 2/25

6:00 am-2:39 pm

2 stops7h 39m

$427

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Fri 3/6

6:00 am-11:16 am

1 stop6h 16m

Harlingen Valley Intl

Sat 3/14

5:25 pm-11:51 pm

1 stop5h 26m

$448

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 2/24

8:15 am-4:04 pm

1 stop8h 49m

Harlingen Valley Intl

Tue 3/3

12:10 pm-8:41 pm

1 stop7h 31m

$454

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 2/24

11:30 am-11:03 pm

2 stops12h 33m

Harlingen Valley Intl

Wed 3/4

6:00 am-2:39 pm

2 stops7h 39m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Harlingen from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Harlingen Valley Intl?

United Airlines and American Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Harlingen Valley Intl

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Harlingen, Texas (IAD to HRL) flight deals and tips

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

Fastest flight time

6h 16m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Harlingen, Texas takes 6h 16m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Harlingen, Texas. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Harlingen, Texas.
Search flight deals

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

    Washington, D.C. Dulles Intl and Harlingen Valley Intl are 1465.2 mi apart from one another. Flights usually cover this in 6h 16m, depending on flying conditions and air traffic around both airports.

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

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

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

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

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

Why use momondo?

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

Finding the right flight to Harlingen from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Harlingen quick and easy, saving you time and money.

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 all potential Washington, D.C. to Harlingen flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Harlingen from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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