HRL - DCA

$126 Find Cheap Flights from Harlingen to Reagan Washington National Airport

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 Reagan-National departing on 12/6. 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. Reagan-National Airport

 
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 Reagan-National (HRL-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Reagan-National 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 Reagan-National

Tue, Mar 10 - Wed, Mar 11
Delta Logo
3:00 pm - 10:17 pmHRL-DCA
6h 17m1 stop
Delta Logo
7:40 am - 2:29 pmDCA-HRL
7h 49m1 stop
$319Delta
Find Deal
Tue, Nov 11 - Tue, Nov 18
American Airlines Logo
4:02 pm - 11:00 pmHRL-DCA
5h 58m1 stop
American Airlines Logo
12:59 pm - 6:10 pmDCA-HRL
6h 11m1 stop
$323American Airlines
Find Deal
Tue, Feb 10 - Sat, Feb 14
United Airlines Logo
9:20 am - 6:41 pmHRL-DCA
8h 21m1 stop
United Airlines Logo
12:47 pm - 7:58 pmDCA-HRL
8h 11m1 stop
$331United Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
American Airlines Logo
5:40 am - 2:24 pmHRL-DCA
7h 44m2 stops
American Airlines Logo
12:59 pm - 6:10 pmDCA-HRL
6h 11m1 stop
$380American Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
American Airlines Logo
5:40 am - 2:24 pmHRL-DCA
7h 44m2 stops
American Airlines Logo
2:17 pm - 11:14 pmDCA-HRL
9h 57m2 stops
$385American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
12:10 pm - 9:07 pmHRL-DCA
7h 57m2 stops
American Airlines Logo
5:00 am - 11:35 amDCA-HRL
7h 35m1 stop
$404American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
10:04 am - 9:07 pmHRL-DCA
10h 03m2 stops
American Airlines Logo
12:37 pm - 12:04 amDCA-HRL
12h 27m2 stops
$454American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
5:50 am - 5:57 pmHRL-DCA
11h 07m2 stops
American Airlines Logo
3:00 pm - 12:04 amDCA-HRL
10h 04m2 stops
$468American Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
United Airlines Logo
5:00 am - 11:29 amHRL-DCA
5h 29m1 stop
United Airlines Logo
7:59 pm - 3:59 pmDCA-HRL
21h 00m1 stop
$573United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $319 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$319
Delta
Tue 3/10Wed 3/11
HRL - DCA • 1 stop
Cheapest one-way
$126
Typical prices: $140-$152
Delta
Sat 12/6
HRL - DCA • 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 Reagan-National!
Booking Insights

KAYAK's insights & trends for Harlingen to Reagan-National flights

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

Which airlines provide the cheapest flights from Harlingen to Reagan Washington National Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Harlingen to Reagan Washington National Airport were found on Delta ($319) and American Airlines ($323).

Which airlines fly non-stop between Harlingen and Washington, D.C. Reagan-National Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Harlingen to Washington, D.C. Reagan-National Airport.

There are 2 airlines that fly nonstop from Harlingen to Washington, D.C. Reagan-National Airport. They are Southwest and United Airlines. The cheapest airline for this route is United Airlines, with the best round-trip deal found costing $270. On average, the best prices for this route can be found at United Airlines.

Good to know

Low seasonJuly
Cheapest flight$126
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 32% lower on average.
Flight from Harlingen to Reagan Washington National Airport

When to book flights from Harlingen to Reagan-National

Are your dates flexible? Find out the best times to travel from Harlingen to Reagan-National 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 Harlingen to Reagan Washington National Airport flights

  • What is the cheapest flight from Harlingen to Washington, D.C. Reagan-National Airport?

    In the last 3 days, the lowest price for a flight from Harlingen to Washington, D.C. Reagan-National Airport was $126 for a one-way ticket and $319 for a round-trip.

  • Do I need a passport to fly between Harlingen and Reagan Washington National Airport?

    No

  • Which airports will I be using when flying from Harlingen to Reagan Washington National Airport?

    When flying out of Harlingen you will be using Harlingen Valley Intl. You will be landing at Reagan Washington National Airport, also known as Washington, D.C. Reagan-National.

  • Which aircraft models fly most regularly from Harlingen to Reagan Washington National Airport?

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

  • Which airline alliances offer flights from Harlingen to Reagan Washington National Airport?

    Star Alliance is the only airline alliance operating flights between Harlingen and Reagan Washington National Airport.

  • Which is the best airline for flights from Harlingen to Washington, D.C., Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Harlingen to Washington, D.C. are Southwest and United Airlines. With an average price for the route of $457 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $386 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Harlingen to Reagan Washington National Airport?

    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 Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harlingen to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport 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 Reagan Washington National Airport?

    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 Reagan Washington National Airport with an airline and back to Harlingen with another airline. Booking your flights between Harlingen and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harlingen to Reagan Washington National Airport?

    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 Reagan Washington National Airport 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 airlines flying from Harlingen to Reagan-National

 
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 Reagan-National? 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 4241 reviews
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
Airline reviews

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

2.0 MediocreThomas, Oct 2025SAT - STL
Read more Southwest reviews

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

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

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

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

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