BUE - IAD

$419 Find Cheap Flights from Buenos Aires 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 Buenos Aires to Washington, D.C. departing on 3/16. 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 Washington, D.C. Dulles Intl Airport

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

Cheapest round-trip
$637
Typical prices: $695-$943
Avianca
Sun 4/19Wed 4/29
EZE - IAD • 1 stop
Cheapest one-way
$419
Typical prices: $447-$470
American Airlines
Mon 3/16
EZE - IAD • 1 stop
Top airlines
Avianca
Cheapest • from $637 (round-trip)
Copa Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 15% price drop
June
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 Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

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

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

Sun, Apr 19 - Wed, Apr 29
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
Avianca Logo
6:50 am - 5:40 am
IAD
-
EZE
21h 50m
1 stop
$637Avianca
Sun, Apr 19 - Wed, Apr 29
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$669Avianca
Sun, Apr 19 - Wed, Apr 29
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$674Avianca
Sun, Apr 19 - Wed, Apr 29
American Airlines Logo
9:05 pm - 7:25 pm
EZE
-
IAD
23h 20m
2 stops
American Airlines Logo
9:19 am - 6:10 am
IAD
-
EZE
19h 51m
2 stops
$675American Airlines
Thu, Mar 19 - Mon, Mar 30
Avianca Logo
4:55 pm - 5:25 am
EZE
-
IAD
13h 30m
1 stop
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$676Avianca
Sun, Apr 12 - Sat, Apr 18
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
Avianca Logo
3:35 pm - 3:40 pm
IAD
-
EZE
23h 05m
1 stop
$677Avianca
Thu, Mar 19 - Tue, Mar 31
Avianca Logo
4:55 pm - 2:15 pm
EZE
-
IAD
22h 20m
1 stop
Avianca Logo
3:35 pm - 3:40 pm
IAD
-
EZE
23h 05m
1 stop
$686Avianca
Tue, May 19 - Wed, Aug 19
Multiple Airlines Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
Multiple Airlines Logo
4:00 pm - 9:45 am
IAD
-
EZE
16h 45m
1 stop
$687Multiple Airlines
Wed, Mar 18 - Mon, Mar 30
Avianca Logo
4:55 pm - 2:15 pm
EZE
-
IAD
22h 20m
1 stop
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$688Avianca
Thu, Mar 19 - Mon, Mar 30
Avianca Logo
7:30 am - 2:40 am
EZE
-
IAD
20h 10m
2 stops
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$689Avianca
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buenos Aires to Washington, D.C. Dulles Intl 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 Buenos Aires to Washington, D.C. Dulles Intl Airport is November, where tickets cost $718 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $1,014 and $989 respectively.

Good to know

Low seasonFebruary
Cheapest flight$419
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Buenos Aires Ministro Pistarini to Washington Dulles Airport

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

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

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

    In the last 3 days, the lowest price for a flight from Buenos Aires to Washington, D.C. Dulles Intl Airport was $419 for a one-way ticket and $637 for a round-trip.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Buenos Aires to Washington, D.C. are Copa Airlines and Avianca. With an average price for the route of $756 and an overall rating of 7.5, Copa Airlines is the most popular choice. Avianca is also a great choice for the route, with an average price of $695 and an overall rating of 6.6.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buenos Aires 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 Buenos Aires 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 Buenos Aires 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 Buenos Aires with another airline.

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

Reviews of the top airlines flying from Buenos Aires to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Buenos Aires 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 Buenos Aires 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.
7.5
Copa AirlinesOverall score based on 1557 reviews
8.1Crew
7.4Comfort
6.8Entertainment
7.8Boarding
6.8Food
Airline reviews

A lot things happened in this trip.The fly should be less stress.

6.0 GoodIrma, Jan 2026
PTY - MIA
Read more Copa Airlines reviews

A lot things happened in this trip.The fly should be less stress.

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.

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

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

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

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

Great experience with a crew always thinking in the passenger

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

Provide free food and drinks on an international flight. Add updated head rests

We found the chairs to be really uncomfortable. It’s also really unacceptable that no form of food or drink is included in a 6+ hour flight

Boarding was late due to the company’s that cleaned the aircraft (very poorly done) and the catering company. The entertainment system was not working for this six hour flight, uncomfortable seats in business (barely any cushion or recline). The airline staff is very good but the planes are horrible and not well maintained.

We waited for one hour to deboard the plane after landing. That could be better

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

Horrible experience. Flight cancelled. Arrived at destination 12 hs later. No one gave us an answer or any information. Very very poor service. We won’t ever travel again with Avianca

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

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

Information on your arrival and departure airports