DCA - EZE

$274 Find Cheap Flights from Reagan Washington National Airport to Buenos Aires

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Buenos Aires departing on 1/12. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Buenos Aires Ministro Pistarini Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Buenos Aires, 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 Washington, D.C. to Buenos Aires, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$639
Overall average: $749
LATAM Airlines
Tue 5/19Sun 5/24
DCA - EZE • 1 stop
Cheapest one-way
$274
LATAM Airlines
Mon 1/12
DCA - EZE • 2 stops
When to travel
November
Cheapest • 32% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Buenos Aires (DCA-EZE)

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

Tue, May 19 - Sun, May 24
LATAM Airlines Logo
12:05 pm - 9:45 am
DCA
-
EZE
20h 40m1 stop
LATAM Airlines Logo
3:45 pm - 2:05 pm
EZE
-
DCA
23h 20m2 stops
$639LATAM Airlines
Tue, Dec 30 - Fri, Jan 23
LATAM Airlines Logo
12:37 pm - 9:35 am
DCA
-
EZE
18h 58m2 stops
LATAM Airlines Logo
9:55 pm - 10:09 pm
EZE
-
DCA
26h 14m2 stops
$640LATAM Airlines
Sat, Jan 31 - Fri, Feb 13
Delta Logo
6:15 pm - 7:20 am
DCA
-
EZE
35h 05m1 stop
Delta Logo
8:55 pm - 9:10 am
EZE
-
DCA
14h 15m1 stop
$642Delta
Sun, Jan 11 - Wed, Jan 28
LATAM Airlines Logo
3:40 pm - 7:20 am
DCA
-
EZE
13h 40m1 stop
LATAM Airlines Logo
8:55 pm - 4:29 pm
EZE
-
DCA
21h 34m2 stops
$643LATAM Airlines
Mon, Feb 9 - Mon, Feb 16
LATAM Airlines Logo
5:00 pm - 10:15 am
DCA
-
EZE
15h 15m1 stop
LATAM Airlines Logo
8:55 pm - 11:14 am
EZE
-
DCA
16h 19m1 stop
$656LATAM Airlines
Mon, Feb 2 - Fri, Feb 6
LATAM Airlines Logo
11:11 am - 10:15 am
DCA
-
EZE
21h 04m1 stop
LATAM Airlines Logo
4:05 am - 10:09 pm
EZE
-
DCA
20h 04m2 stops
$661LATAM Airlines
Wed, Jan 28 - Fri, Feb 6
LATAM Airlines Logo
3:40 pm - 7:20 am
DCA
-
EZE
13h 40m1 stop
LATAM Airlines Logo
3:55 pm - 5:14 pm
EZE
-
DCA
27h 19m2 stops
$662LATAM Airlines
Mon, Mar 2 - Tue, Mar 17
LATAM Airlines Logo
10:15 am - 10:15 am
DCA
-
EZE
22h 00m2 stops
LATAM Airlines Logo
10:25 pm - 6:33 pm
EZE
-
DCA
21h 08m2 stops
$664LATAM Airlines
Wed, Mar 25 - Tue, Apr 14
LATAM Airlines Logo
2:36 pm - 9:35 am
DCA
-
EZE
17h 59m1 stop
LATAM Airlines Logo
1:20 pm - 10:56 am
EZE
-
DCA
22h 36m2 stops
$665LATAM Airlines
Wed, Jan 21 - Sat, Jan 24
LATAM Airlines Logo
5:00 pm - 10:15 am
DCA
-
EZE
15h 15m1 stop
LATAM Airlines Logo
9:55 pm - 10:09 pm
EZE
-
DCA
26h 14m2 stops
$667LATAM Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Reagan-National to Buenos Aires 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 Reagan Washington National Airport to Buenos Aires?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport clicked on KAYAK for each day over the last 12 months.

For Reagan Washington National Airport to Buenos Aires, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Buenos Aires back to Reagan Washington National Airport, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport is November, where tickets cost $649 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is $1,615 and $1,288 respectively.

Good to know

Low seasonJuly
Cheapest flight$274
Most popular time to fly with an average 9% increase in price.
Flight from Reagan Washington National Airport to Buenos Aires

When to book flights from Reagan-National to Buenos Aires

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

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport was $274 for a one-way ticket and $640 for a round-trip.

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

    Yes

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

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

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

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

  • Which is the best airline for flights from Washington, D.C. to Buenos Aires, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Buenos Aires are Delta and LATAM Airlines. With an average price for the route of $1,035 and an overall rating of 7.9, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $687 and an overall rating of 7.5.

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

    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 Reagan Washington National Airport to Buenos Aires.

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

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

    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 Buenos Aires with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and EZE 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 Reagan Washington National Airport to Buenos Aires?

    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 Buenos Aires from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Reagan-National to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Buenos Aires. 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 Reagan-National to Buenos Aires? 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.
7.9
DeltaOverall score based on 8008 reviews
8.1Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Boarding was confusing with a delayed flight because there was no English translation

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

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

Information on your arrival and departure airports