HRL - DCA

$237 Find Cheap Flights from Harlingen to Reagan Washington National Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Reagan-National departing on 9/11. 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Harlingen to Reagan-National

Thu, Sep 11 - Sun, Sep 14
American Airlines Logo
6:19 pm - 12:55 amHRL-DCA
5h 36m1 stop
American Airlines Logo
5:00 am - 9:41 amDCA-HRL
5h 41m1 stop
$237American Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
American Airlines Logo
5:30 am - 2:15 pmHRL-DCA
7h 45m1 stop
American Airlines Logo
5:00 am - 9:32 amDCA-HRL
5h 32m1 stop
$317American Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
American Airlines Logo
5:45 am - 3:16 pmHRL-DCA
8h 31m2 stops
American Airlines Logo
5:00 am - 9:41 amDCA-HRL
5h 41m1 stop
$422American Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1
American Airlines Logo
5:30 am - 12:41 pmHRL-DCA
6h 11m1 stop
American Airlines Logo
5:00 am - 9:32 amDCA-HRL
5h 32m1 stop
$458American Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1
Southwest Logo
9:30 am - 6:10 pmHRL-DCA
7h 40m2 stops
Southwest Logo
6:55 am - 1:00 pmDCA-HRL
7h 05m1 stop
$565Southwest
Find Deal
Thu, Sep 11 - Sun, Sep 14
Southwest Logo
6:40 am - 2:15 pmHRL-DCA
6h 35m2 stops
Southwest Logo
4:40 pm - 10:55 pmDCA-HRL
7h 15m2 stops
$572Southwest
Find Deal
Fri, Aug 29 - Mon, Sep 1
Southwest Logo
9:30 am - 6:10 pmHRL-DCA
7h 40m2 stops
Southwest Logo
6:10 am - 1:00 pmDCA-HRL
7h 50m2 stops
$617Southwest
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
5:00 am - 11:36 amHRL-DCA
5h 36m1 stop
United Airlines Logo
1:00 pm - 9:52 pmDCA-HRL
9h 52m2 stops
$626United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
5:00 am - 2:16 pmHRL-DCA
8h 16m2 stops
United Airlines Logo
2:00 pm - 9:52 pmDCA-HRL
8h 52m2 stops
$942United Airlines
Find Deal
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 American Airlines ($237) and Southwest ($565).

Good to know

Low seasonJuly
Cheapest flight$237
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 35% 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 $237 for a round-trip ticket.

  • 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Harlingen and Reagan Washington National Airport, with oneworld being the most commonly used for this route.

  • 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 airline 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 4244 reviews
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

Southwest's seats are the least comfortable I have ever sat in.

4.0 OkayDavid, Aug 2025DTW - STL
Read more Southwest reviews

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

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.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Everything you need to know for your flight from Harlingen to Reagan-National

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