HRL - WAS

$184 Find Cheap Flights from Harlingen to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Washington, D.C. departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Harlingen to Washington, D.C. (HRL-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Harlingen to Washington, D.C.

Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
5:36 am - 11:59 amHRL-DCA
5h 23m1 stop
American Airlines Logo
6:30 am - 11:40 amDCA-HRL
6h 10m1 stop
$269American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
3:00 pm - 11:33 pmHRL-DCA
7h 33m1 stop
Delta Logo
7:40 am - 2:29 pmDCA-HRL
7h 49m1 stop
$319Delta
Find Deal
Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
5:36 am - 2:23 pmHRL-DCA
7h 47m2 stops
American Airlines Logo
6:30 am - 11:40 amDCA-HRL
6h 10m1 stop
$339American Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
United Airlines Logo
12:16 pm - 8:42 pmHRL-IAD
7h 26m1 stop
United Airlines Logo
6:00 am - 11:04 amIAD-HRL
6h 04m1 stop
$345United Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
5:45 am - 12:42 pmHRL-BWI
5h 57m1 stop
American Airlines Logo
6:41 am - 2:19 pmBWI-HRL
8h 38m1 stop
$345American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
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
$349American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
5:45 am - 12:42 pmHRL-BWI
5h 57m1 stop
American Airlines Logo
11:04 am - 6:05 pmBWI-HRL
8h 01m2 stops
$350American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
2:00 pm - 11:51 pmHRL-IAD
8h 51m1 stop
United Airlines Logo
8:25 am - 7:29 pmIAD-HRL
12h 04m1 stop
$375United Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
United Airlines Logo
5:00 am - 11:38 amHRL-IAD
5h 38m1 stop
United Airlines Logo
12:50 pm - 7:41 pmIAD-HRL
7h 51m1 stop
$398United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
3:00 pm - 11:53 amHRL-IAD
19h 53m2 stops
Delta Logo
7:59 pm - 2:29 pmIAD-HRL
19h 30m2 stops
$476Delta
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $269 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$269
American Airlines
Fri 12/5Mon 12/8
HRL - DCA • 1 stop
Cheapest one-way
$184
United Airlines
Tue 9/23
HRL - BWI • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Booking Insights

KAYAK's insights & trends for Harlingen to Washington, D.C. flights

Get data-powered insights and trends into flights from Harlingen to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Harlingen to Washington, D.C.?

The average price of all round-trip flights from Harlingen to Washington, D.C. clicked on KAYAK for each day over the last 12 months.

When flying from Harlingen to Washington, D.C., you should consider leaving on a Friday and avoid Wednesdays if you are looking for the best rates. For your return to Harlingen, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

Find deals

Good to know

Low seasonFebruary
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 4% increase in price.

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

Are your dates flexible? Find out the best times to travel from Harlingen to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Harlingen to Washington, D.C.

  • What is the cheapest flight from Harlingen to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Harlingen to Washington, D.C. was $184 for a one-way ticket and $269 for a round-trip.

  • Do I need a passport to fly between Harlingen and Washington, D.C.?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Harlingen to Washington, D.C.?

    Harlingen is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Harlingen from Harlingen Valley Intl and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Harlingen to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Harlingen to Washington, D.C.?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Harlingen and Washington, D.C., with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Harlingen to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Harlingen to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harlingen to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Harlingen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Harlingen to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Harlingen with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harlingen to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Harlingen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Harlingen to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Harlingen to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Harlingen to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
8.0Comfort
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

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

Information on your arrival and departure airports

Harlingen (HRL)

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