HRL - WAS

$165 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 7/7. 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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Flights 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.

Wed, Sep 3 - Fri, Sep 5
Southwest Logo
7:25 am - 5:00 pmHRL-DCA
8h 35m1 stop
Southwest Logo
6:55 am - 1:00 pmDCA-HRL
7h 05m1 stop
$253Southwest
Find Deal
Wed, Sep 3 - Fri, Sep 5
Southwest Logo
2:10 pm - 10:45 pmHRL-DCA
7h 35m1 stop
Southwest Logo
6:05 am - 1:00 pmDCA-HRL
7h 55m2 stops
$258Southwest
Find Deal
Wed, Sep 3 - Fri, Sep 5
Southwest Logo
2:10 pm - 11:15 pmHRL-DCA
8h 05m2 stops
Southwest Logo
6:00 am - 1:00 pmDCA-HRL
8h 00m2 stops
$263Southwest
Find Deal
Wed, Sep 3 - Fri, Sep 5
United Airlines Logo
2:05 pm - 8:52 pmHRL-IAD
5h 47m1 stop
United Airlines Logo
11:03 am - 4:02 pmIAD-HRL
5h 59m1 stop
$277United Airlines
Find Deal
Fri, Jun 27 - Tue, Jul 1
Southwest Logo
5:30 pm - 12:05 amHRL-BWI
5h 35m1 stop
Southwest Logo
6:15 am - 11:25 amBWI-HRL
6h 10m1 stop
$277Southwest
Find Deal
Wed, Sep 3 - Fri, Sep 5
American Airlines Logo
2:51 pm - 10:49 pmHRL-IAD
6h 58m1 stop
American Airlines Logo
11:18 am - 6:00 pmIAD-HRL
7h 42m2 stops
$282American Airlines
Find Deal
Sat, Jun 28 - Tue, Jul 1
United Airlines Logo
1:59 pm - 10:29 pmHRL-IAD
7h 30m1 stop
United Airlines Logo
6:10 am - 1:20 pmIAD-HRL
8h 10m1 stop
$304United Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
United Airlines Logo
5:10 am - 11:46 amHRL-DCA
5h 36m1 stop
United Airlines Logo
4:59 pm - 9:50 pmDCA-HRL
5h 51m1 stop
$317United Airlines
Find Deal
Wed, Sep 3 - Fri, Sep 5
American Airlines Logo
6:30 pm - 11:33 amHRL-IAD
16h 03m2 stops
American Airlines Logo
11:18 am - 10:57 pmIAD-HRL
12h 39m2 stops
$325American Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
American Airlines Logo
4:27 pm - 11:17 pmHRL-BWI
5h 50m1 stop
American Airlines Logo
7:19 pm - 12:06 amBWI-HRL
5h 47m1 stop
$358American Airlines
Find Deal
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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 Tuesday and avoid Wednesdays if you are looking for the best rates. For your return to Harlingen, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

Good to know

Low seasonFebruary
High seasonDecember
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 6% 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 $165 for a one-way ticket and $253 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, and oneworld are the airline alliances operating flights between Harlingen and Washington, D.C., with oneworld being the most commonly used for this route.

  • 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 $368 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 $358 and an overall rating of 7.4.

  • 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.

Top airlines 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 4287 reviews
7.1Food
7.6Entertainment
8.2Boarding
8.0Comfort
8.6Crew
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

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.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

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

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

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

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