$275 Find Cheap Flights from Washington Dulles Airport to Argentina

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Argentina departing on 12/8. 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.
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Cheap Flights from Dulles Intl to Argentina

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Buenos Aires
Buenos Aires2 stops$637
Mendoza
Mendoza2 stops$670
Cordoba
Cordoba1 stop$628
Ushuaia
Ushuaia2 stops$1,083
Rosario
Rosario2 stops$1,010
Mar del Plata
Mar del Plata3 stops$1,773
Buenos Aires
Buenos Aires2 stops$637
Mendoza
Mendoza2 stops$670
Cordoba
Cordoba1 stop$628
Ushuaia
Ushuaia2 stops$1,083
Rosario
Rosario2 stops$1,010
Mar del Plata
Mar del Plata3 stops$1,773

Book Cheap Dulles Intl to Argentina Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Argentina 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 Dulles Intl to Argentina

Sun, Dec 7 - Fri, Mar 20
Copa Airlines Logo
1:13 am - 2:28 amIAD-COR
23h 15m1 stop
Copa Airlines Logo
5:29 am - 12:32 amCOR-IAD
20h 03m1 stop
$628Copa Airlines
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Tue, Apr 21 - Tue, May 5
Avianca Logo
4:05 am - 12:10 amIAD-EZE
19h 05m2 stops
Avianca Logo
4:45 pm - 5:35 amEZE-IAD
13h 50m1 stop
$637Avianca
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Sun, Nov 30 - Sun, Dec 14
Avianca Logo
4:30 am - 5:50 amIAD-EZE
23h 20m2 stops
Avianca Logo
4:55 pm - 4:25 amEZE-IAD
13h 30m1 stop
$638Avianca
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Sun, Feb 15 - Thu, Feb 26
Delta Logo
7:15 am - 9:00 amIAD-EZE
23h 45m1 stop
Delta Logo
8:55 pm - 9:16 amEZE-IAD
14h 21m1 stop
$640Delta
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Tue, Nov 25 - Wed, Dec 3
Delta Logo
5:59 pm - 5:50 amIAD-COR
33h 51m2 stops
Delta Logo
7:55 am - 12:12 amCOR-IAD
18h 17m2 stops
$640Delta
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Mon, Dec 8 - Thu, Dec 11
LATAM Airlines Logo
7:01 am - 4:00 pmIAD-AEP
30h 59m2 stops
LATAM Airlines Logo
8:50 am - 6:21 pmAEP-IAD
35h 31m2 stops
$640LATAM Airlines
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Mon, Nov 24 - Fri, Dec 5
United Airlines Logo
6:00 am - 3:51 amIAD-COR
19h 51m2 stops
United Airlines Logo
5:37 am - 8:42 pmCOR-IAD
17h 05m2 stops
$642United Airlines
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Thu, Dec 4 - Mon, Dec 8
LATAM Airlines Logo
3:38 pm - 9:35 amIAD-EZE
15h 57m2 stops
LATAM Airlines Logo
11:00 am - 12:12 amEZE-IAD
15h 12m2 stops
$644LATAM Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 22
United Airlines Logo
8:30 am - 7:20 amIAD-EZE
20h 50m1 stop
United Airlines Logo
11:55 pm - 11:49 pmEZE-IAD
25h 54m1 stop
$648United Airlines
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Wed, Dec 10 - Tue, Dec 16
Copa Airlines Logo
8:22 am - 3:51 amIAD-COR
17h 29m1 stop
Copa Airlines Logo
5:37 am - 11:33 pmCOR-IAD
19h 56m1 stop
$648Copa Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Argentina flights

Get data-powered insights and trends into flights from Dulles Intl to Argentina to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Argentina, 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 Argentina is October, when tickets cost $639 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,282 and $961 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Argentina?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Argentina clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Argentina, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

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

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. Dulles Intl Airport to Argentina, 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. Dulles Intl Airport to Argentina, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$275
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 47% increase in price.
Flight from Washington, D.C. to Buenos Aires Jorge Newbery

FAQs - booking Argentina flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Argentina?

    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 Dulles Airport to Argentina.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Argentina 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 Dulles Airport to Argentina?

    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 from Washington Dulles Airport to Argentina with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Argentina?

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

  • What is the cheapest time of day to fly to Argentina?

    The cheapest time of day to fly to Argentina is generally at night, when round-trip flights cost $998 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Argentina is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,105.

Reviews of the top 5 airlines serving from Dulles Intl to Argentina

 
Need help choosing which airline to fly with from Dulles Intl to Argentina? 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 8007 reviews
7.9Entertainment
8.5Crew
7.9Comfort
8.1Boarding
7.3Food
Airline reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

10.0 ExcellentJacky, Nov 2025JFK - LHR
Read more Delta reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

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

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

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

Great experience with a crew always thinking in the passenger

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

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.

Poor, the airline was not able to help me move flights.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

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.

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.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

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

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

I receive a service for what I pay, so it is fair.

Excellent flight and one of the smoothest landing I’ve ever experienced

Everything you need to know for your flight from Dulles Intl to Argentina

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