Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

IAD - BUE

Find cheap flights from Washington, D.C. to Buenos Aires from $272

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 5/26. 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
0 bags
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights 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.
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.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Washington, D.C. to Buenos Aires (IAD-BUE)

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 and deals for you by selecting your travel dates.
Choose your dates
2:35 am - 12:05 amIAD-EZE
20h 30m2 stops
8:00 am - 1:45 pmEZE-IAD
30h 45m2 stops
Tue, May 14 - Sat, May 25
2:35 am - 4:35 amIAD-EZE
25h 00m3 stops
8:00 am - 1:45 pmEZE-IAD
30h 45m2 stops
Tue, May 14 - Sat, May 25
3:05 pm - 10:00 pmIAD-AEP
29h 55m2 stops
12:05 pm - 6:25 amAEP-IAD
43h 20m3 stops
Sun, May 26 - Sat, Jun 1
7:45 am - 12:05 amIAD-EZE
15h 20m1 stop
4:50 pm - 6:25 amEZE-IAD
14h 35m1 stop
$645Avianca
Find Deal
Wed, May 15 - Sat, May 25
7:45 am - 12:05 amIAD-EZE
15h 20m1 stop
6:00 am - 1:15 amEZE-IAD
20h 15m3 stops
$646Avianca
Find Deal
Thu, Aug 8 - Tue, Aug 13
2:35 am - 9:56 pmIAD-EZE
18h 21m1 stop
2:32 pm - 4:20 amEZE-IAD
14h 48m1 stop
$672Copa Airlines
Find Deal
Tue, May 14 - Sat, May 25
5:48 pm - 8:00 amIAD-EZE
37h 12m1 stop
9:00 pm - 11:59 pmEZE-IAD
27h 59m1 stop
$701United Airlines
Find Deal
Mon, May 13 - Mon, May 27
2:35 am - 9:56 pmIAD-EZE
18h 21m1 stop
10:36 am - 12:40 amEZE-IAD
15h 04m1 stop
$812Copa Airlines
Find Deal
Thu, May 16 - Sun, May 26
9:59 am - 9:40 amIAD-EZE
22h 41m1 stop
6:10 am - 11:59 pmEZE-IAD
18h 49m2 stops
$824Delta
Find Deal
Tue, May 21 - Wed, Jun 12
5:00 pm - 4:20 pmIAD-AEP
22h 20m2 stops
6:20 am - 12:07 amAEP-IAD
18h 47m2 stops
$1,104Delta
Find Deal
Wed, Sep 4 - Wed, Sep 11

Flights from Washington, D.C. to Buenos Aires - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Washington, D.C. to Buenos Aires?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Buenos Aires clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Washington, D.C. to Buenos Aires, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Buenos Aires, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Buenos Aires?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires, 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. Dulles Intl Airport to Buenos Aires is September, where tickets cost $886 on average. On the other hand, the most expensive months are December and February, where the average cost of tickets is $1,365 and $1,121 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Buenos Aires, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 11 days before departure.

Which airlines provide the cheapest flights from Washington, D.C. to Buenos Aires?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Avianca ($282) and GOL ($404). The cheapest round-trip tickets were found on Avianca ($645) and Copa Airlines ($672).

Good to know

Low season

July

High season

January

Cheapest flight

$272
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Washington, D.C. to Buenos Aires Jorge Newbery

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. Dulles Intl Airport to Buenos Aires?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Buenos Aires was $272 for a one-way ticket and $603 for a round-trip.

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

    Yes, you’ll need a passport to travel to Buenos Aires from Washington, D.C..

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

    Washington, D.C. is served by only 1 airport and there are 2 airports in Buenos Aires. You will leave Washington, D.C. from Washington, D.C. Dulles Intl and you will be arriving in Buenos Aires at one of these airports: Buenos Aires Jorge Newbery or 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?

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and Buenos Aires.

  • 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 $1,111 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $978 and an overall rating of 7.8.

  • 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.

See more FAQs

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.
8.0
DeltaOverall score based on 10975 reviews
7.9comfort
7.4food
8.6crew
8.0entertainment
8.2boarding
Airline reviews

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

10.0 ExcellentAnonymous, Apr 2024ATL - PIT
Read more about Delta reviews

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

Copa performed as expected for the amount of money I was willing to spend for the flight; it wasn’t exceptional but it was not bad in any way either. The crew was good; friendly and straightforward. The food was airplane food, so no expectations there and the entertainment was lacking but that was my fault for owning an IPhone with a charging port that’s not compatible with the rest of the world. I’d fly Copa again.

Left my bags in origin city on a business class ticket , spent about 2-3 days in the same clothes plus the flight .

the planes are not modern there are no phone chargers

As usual, the flight with normal legroom was not very comfortable, but the second flight was much better because we had paid for extra legroom. It was very nice to check our bags without an extra fee.

LOCKED MY BAG WITHOUT CONSENT. Had to have my zippers cut upon arrival in Costa Rica.

Pros: "The seats in economy were confortable. The best thing was Copa gave us seats in the second line and my family traveled together."
Cons: "Coffe service could better the experience"
Pros: "The crew was very interested on help and attentive with the passengers. But the seat wasn't comfortable. The design of the cushion is not the best to be seating"
Pros: "You were on time, that is the most important thing in a fly"
Cons: "You could improve your entertainment, you are not a cheap company"
Pros: "That there was seltzer"
Cons: "The management of preparing the flight and plane so that it was ready for the trip!!"
Pros: "Copa was convenient and easy. Very easy boarding process and I appreciated the day flight."
Cons: "This is a business class that is equivalent to a US carrier domestic first class. Good seats, not lay flat but wide on my 737-800. The food and service emulated say American Airlines Domestic 1C as well. Everything was just good enough, and much cheaper that international business on the majors."

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

I don't think anyone actually reads these comments, so I won't spend much time on this submission. If you want to talk, you know how to reach me. The D/FW manager of Avianca (self-identified), Juan Calderon, insisted I buy an onward ticket from San Salvador even though I have diplomatic status in El Salvador and live here. It cost me $1,393 and Mr Calderon would not let me make the ticked flexible so I could get a refund. He went out of his way to be rude to me. He gave me seat 32K -- windowless window seat in the last row and did not offer to let me upgrade even though there were plenty of seats. I have flown well over a million miles in my life and this is the worst experience I have ever had. I would like a refund on the ticket I was forced to buy. Just awful!

This is the Spirit of Latino travel. And don’t even get me started on customer service.

Awful. I checked in online and there was no option to pay for baggage, at the airport when I checked in my baggage was received and Iwas not charged. When I got to LA during the boarding process I was told I didn't pay for baggage, the crew resolved I was let in the plane. When I got to my final destination my baggage was not there. It took me two days to receive my baggage. Bad service ever!

The temperature was cold and the food that we had to pay for was awful. The crew didn’t even offer a free glass of water. It was a long, expensive and uncomfortable flight.

There was no food or drink service, couldn’t even get a glass of water for free. It was a long and expensive flight to not offer food or beverage on the plane.

It is better at the jfk than my home country. It was very easy and everything was on time.

There is no food. There is no in-inflight entertainment. The seats are cardboard. The airline is a living hellscape.

My experience was amazing! They helped my elderly mother board on early through a wheelchair and were accommodating to have us sit together since our seats were in different locations. When landing at the airport in GUA they were very helpful with full of hospitality.

No complimentary snacks food, beverage (not even water), pillow and blanket on a 6 hours long flight (including economy comfort). A low form of nickeling an diming. Lost a recurring passanger over a soda. Avianca never again.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

Kayak, the site I went through to book our flight, sent very unclear emails about flight changes. Kayak was incredibly unhelpful in their communications with me about this, promising to work on resolving the issue, and failing to do so. As a result, I needed to get a hotel in Brussels and am now in the process of trying to get reimbursed. On the other hand, the flight personnel in Brussels were very helpful, taking time to look into the issue and determine if they could help. I am very grateful for them and have no problems with the airline. For Kayak, however, I will never use it again and will never recommend it to anyone, and will even discourage people who consider going through that site. My worst experience ever....

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

Book cheap flights from Washington, D.C. to Buenos Aires

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Buenos Aires found on KAYAK in the last 72 hours.
5/26Sun
2 stops
29h 55mIAD-AEP
$272
5/9Thu
2 stops
19h 11mIAD-EZE
$278
5/25Sat
3 stopsAvianca
25h 00mIAD-EZE
$282
5/1Wed
1 stopAvianca
20h 50mIAD-EZE
$297
4/30Tue
1 stopCopa Airlines
18h 21mIAD-EZE
$409
5/3Fri
1 stopCopa Airlines
21h 20mIAD-EZE
$419
7/3Wed
1 stopUnited Airlines
24h 30mIAD-EZE
$469
6/7Fri
2 stopsLATAM Airlines
26h 40mIAD-AEP
$469
5/25Sat
2 stopsLATAM Airlines
32h 00mIAD-AEP
$472
5/16Thu
1 stopUnited Airlines
22h 39mIAD-EZE
$2,108

Search by stops

Search by airline

Search by price

Last minute flights from Washington, D.C. to Buenos Aires

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Buenos Aires that are departing in the next 10 days.
4/27Sat
multi-stopAvianca
20h 30mIAD-EZE
5/4Sat
multi-stopAvianca
24h 45mEZE-IAD
$721
4/28Sun
multi-stopAvianca
13h 30mIAD-EZE
5/4Sat
multi-stopAvianca
24h 45mEZE-IAD
$759
4/28Sun
multi-stop
20h 25mIAD-EZE
5/4Sat
multi-stop
25h 25mEZE-IAD
$773
4/28Sun
multi-stop
22h 19mIAD-EZE
5/4Sat
multi-stop
25h 25mEZE-IAD
$780
4/27Sat
multi-stopCopa Airlines
18h 21mIAD-EZE
5/4Sat
multi-stopCopa Airlines
35h 10mEZE-IAD
$961
4/28Sun
multi-stopLATAM Airlines
24h 51mIAD-EZE
5/3Fri
multi-stopLATAM Airlines
32h 49mEZE-IAD
$1,033
4/26Fri
multi-stopLATAM Airlines
30h 00mIAD-EZE
5/3Fri
multi-stopLATAM Airlines
32h 49mEZE-IAD
$1,044
4/28Sun
multi-stopAir Canada
27h 55mIAD-EZE
5/4Sat
multi-stopAir Canada
26h 05mEZE-IAD
$1,565
4/26Fri
multi-stopAir Canada
27h 55mIAD-EZE
5/4Sat
multi-stopAir Canada
24h 33mEZE-IAD
$1,671
4/27Sat
multi-stopCopa Airlines
18h 21mIAD-EZE
5/3Fri
multi-stopCopa Airlines
15h 21mEZE-IAD
$1,838

Search by stops

Search by airline

Search by price

Washington, D.C. - Buenos Aires Flights

Departure:

Washington, D.C. (IAD)United States

Return flight deals:

Buenos Aires - Washington, D.C.

Cabin classes: