WAS - EZE

$287 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Buenos Aires 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, 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.
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.
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Everything you should know

Cheapest round-trip
$655
Typical prices: $741-$1,048
Copa Airlines
Fri 7/3Wed 7/8
IAD - EZE • 1 stop
Cheapest one-way
$287
LATAM Airlines
Wed 9/23
BWI - EZE • 2 stops
Top airlines
Cheapest • from $655 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Buenos Aires. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $762 (round-trip)
Shortest trip • 13h 15m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Buenos Aires (WAS-EZE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Buenos Aires

Fri, Jul 3 - Wed, Jul 8
Copa Airlines Logo
2:22 am - 4:15 am
IAD
-
EZE
24h 53m
1 stop
Copa Airlines Logo
8:59 am - 1:47 am
EZE
-
IAD
17h 48m
1 stop
$655Copa Airlines
Sat, Jul 11 - Mon, Jul 27
Delta Logo
6:00 am - 9:45 am
IAD
-
EZE
26h 45m
1 stop
Delta Logo
8:10 pm - 12:41 am
EZE
-
IAD
29h 31m
1 stop
$657Delta
Sun, Jul 12 - Mon, Jul 27
Delta Logo
10:16 am - 9:45 am
DCA
-
EZE
22h 29m
1 stop
Delta Logo
1:10 pm - 2:05 pm
EZE
-
DCA
25h 55m
1 stop
$658Delta
Wed, Oct 7 - Wed, Oct 14
LATAM Airlines Logo
4:00 pm - 9:40 am
IAD
-
EZE
16h 40m
2 stops
LATAM Airlines Logo
1:10 pm - 11:59 am
EZE
-
IAD
23h 49m
2 stops
$659LATAM Airlines
Wed, Oct 7 - Wed, Oct 14
LATAM Airlines Logo
2:55 pm - 9:40 am
DCA
-
EZE
17h 45m
1 stop
LATAM Airlines Logo
1:10 pm - 10:54 am
EZE
-
DCA
22h 44m
2 stops
$659LATAM Airlines
Fri, Jul 17 - Thu, Jul 30
United Airlines Logo
6:30 am - 8:00 am
IAD
-
EZE
24h 30m
1 stop
United Airlines Logo
9:00 pm - 11:28 am
EZE
-
IAD
15h 28m
1 stop
$667United Airlines
Tue, Jul 21 - Wed, Jul 29
United Airlines Logo
10:20 pm - 8:00 am
IAD
-
EZE
32h 40m
1 stop
United Airlines Logo
9:00 pm - 11:28 am
EZE
-
IAD
15h 28m
1 stop
$676United Airlines
Thu, Jul 2 - Sun, Jul 5
American Airlines Logo
7:58 pm - 11:05 am
DCA
-
EZE
14h 07m
1 stop
American Airlines Logo
9:05 pm - 10:59 am
EZE
-
DCA
14h 54m
1 stop
$681American Airlines
Thu, Jul 2 - Sun, Jul 5
American Airlines Logo
1:55 pm - 7:00 am
BWI
-
EZE
16h 05m
2 stops
American Airlines Logo
10:35 pm - 6:26 pm
EZE
-
BWI
20h 51m
1 stop
$682American Airlines
Wed, Aug 19 - Mon, Aug 31
Multiple Airlines Logo
12:03 pm - 9:45 am
BWI
-
EZE
20h 42m
1 stop
Multiple Airlines Logo
1:10 pm - 1:05 pm
EZE
-
BWI
24h 55m
2 stops
$692Multiple Airlines
Booking Insights

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

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

How much is a round-trip flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport departing in July.

What is the cheapest month to fly from Washington, D.C. 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. 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. to Buenos Aires Ministro Pistarini Airport is January, where tickets cost $256 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $618 and $386 respectively.

How far in advance should I book a flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport?

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

To get a below average price on the flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$287
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 45% increase in price.
Flight from Baltimore to Buenos Aires

When to book flights from Washington, D.C. to Buenos Aires

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 Washington, D.C. to Buenos Aires flights

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport was $287 for a one-way ticket and $655 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Buenos Aires.

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

    On your way to Buenos Aires, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Buenos Aires Ministro Pistarini.

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

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

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

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. 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 Copa Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Buenos Aires are Delta and Copa Airlines. With an average price for the route of $798 and an overall rating of 7.8, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $881 and an overall rating of 7.6.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Washington, D.C. 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 Washington, D.C. 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.
7.8
DeltaOverall score based on 8423 reviews
8.5Crew
8.1Boarding
7.2Food
7.8Comfort
7.8Entertainment
Airline reviews

Very good flight. Crew was great. No issues and we even arrived early.

10.0 ExcellentAnonymous, Jun 2026
SAN - DTW
Read more Delta reviews

Very good flight. Crew was great. No issues and we even arrived early.

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Boarding was a mess, they call all priority members without distinction so gold, platinum, silver were all mixed together in a long line which defeats the purpose

Avoid at all costs. My wife had to stay back on a connecting flight as her parents flight was delayed. 10 days later on the way back they cancelled all our flights. We had to rebook all four of us on the next days flight.

The food is terrible I ask for water never got transport my mother we’re late and my sister from Lima was the worst waiting to long for wheelchair

Seats were awful. Media should have been included for such a long flight.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Some of the Air hostesses are not that friendly. Need improvement

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

LATAM clearly does not have well-established policies re: luggage for international flights to Lima followed by domestic flights within Peru (in my case, from Lima to Cuzco). On the way in, they forced me to pay $50 in Lima to check my second carry on bag (the three bags were included in the fare from JFK to Lima). On the return trip, they told me at check in that I would have to pay $50 again at the gate (she said they couldn't accept the money at check in) Then, at the gate, they initially told me I would have to pay several hundred dollars to check the big bag through to JFK. I protested, and showed them a print out of an email saying the checked bag was included between LIM and JFK. Than a second woman showed up, and told me I wouldn't have to pay anything at all -- which was great news, of course -- but that means I was incorrectly charged the extra $50 on the incoming flight. Basically, just a mess. Also, their website is completely non-functional -- it was very cleear that all the airport staff knew the website was nonfunctional, too.

In flight from Miami to Anchorage, we were all on board ready to take off. Pilot decided to take on more fuel causing a delay. Once fueled, the pilot came back over the radio stating more delay due to VIP. These delays caused me to miss my connecting flight. I went to the Alaska Air counter for information. They flat out stated that it was ATCs fault that I missed my flight and booked me a flight the next day about 1300 . I believe if we had the fuel prior to getting on board we would not of been delayed and I would have taken off on time. Pilot was taken out of the equation. I think they should’ve taken responsibility for their pilots decision to top off his aircraft instead of waiting til the last moment. Enough said…

We liked the way we were treated by the sraff at lima airport counter and the the flight attendants. We did not like the fact that the kiosks at airport rebooted after we entered our information and then told us that there was an issueand we needed to go to the counter. Such a waste of time for a group of 6. Once we got our boarding passes there was no assigned gate so we did not know where to go.

Honestly first time flying with delta and it was pretty good. All the process very smooth and crew was always nice and attentive.

Nothing I like, I missed this connection b/c of an earlier flight delay. I had to stay one more night and I paid out my own pocket. LATAM failed to send me to a safe and decent hotel.

It was delayed for 2 hours. Then when we arrived they took us on a very uncomfortable bus and left us there. The bus driver wouldn't let us out because no one from Latam was there. Everything was disaster.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Apart of Sky miles delta. And they go everywhere in Brazil

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

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

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

Overall fine. Seemed like one of the older model planes? Crew was mostly very kind, though some of the female attendants were a rather abrupt during the food service.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

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

Information on your arrival and departure airports