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Cheap Flights from Washington Dulles (IAD) to Buenos Aires (BUEA)

Compare Washington Dulles to Buenos Aires flight deals

Find the cheapest month or even day of the year to fly to Buenos Aires

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Flight deals from Washington Dulles Airport to Buenos Aires

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Buenos Aires? If you want to travel next month, return fares start from £438. Find the lowest prices on one-way and return tickets right here.
Buenos Aires.£188 per passenger.Departing Tue, 5 May.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Washington Dulles on Tue, 5 May, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £188, select.
Buenos Aires.£188 per passenger.Departing Thu, 16 Apr.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Washington Dulles on Thu, 16 Apr, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £188, select.
Buenos Aires.£229 per passenger.Departing Thu, 8 Oct.One-way flight with LATAM Airlines.Outbound indirect flight with LATAM Airlines, departs from Washington Dulles on Thu, 8 Oct, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £229, select.
Buenos Aires.£229 per passenger.Departing Tue, 16 Jun.One-way flight with LATAM Airlines.Outbound indirect flight with LATAM Airlines, departs from Washington Dulles on Tue, 16 Jun, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £229, select.
Buenos Aires.£232 per passenger.Departing Tue, 24 Nov.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from Washington Dulles on Tue, 24 Nov, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £232, select.
Buenos Aires.£232 per passenger.Departing Wed, 30 Sep.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Wed, 30 Sep, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £232, select.
Buenos Aires.£233 per passenger.Departing Tue, 11 Aug.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Tue, 11 Aug, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £233, select.
Buenos Aires.£234 per passenger.Departing Tue, 31 Mar.One-way flight with Copa.Outbound indirect flight with Copa, departs from Washington Dulles on Tue, 31 Mar, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £234, select.
Buenos Aires.£235 per passenger.Departing Tue, 12 Jan.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Tue, 12 Jan, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £235, select.
Buenos Aires.£236 per passenger.Departing Wed, 2 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Wed, 2 Dec, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £236, select.
Buenos Aires.£249 per passenger.Departing Mon, 6 Jul.One-way flight with Copa.Outbound indirect flight with Copa, departs from Washington Dulles on Mon, 6 Jul, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £249, select.
Buenos Aires.£250 per passenger.Departing Wed, 3 Feb.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Wed, 3 Feb, arriving in Buenos Aires Ministro Pistarini.Price includes taxes and charges.From £250, select.

Find the cheapest month to fly from Washington Dulles to Buenos Aires

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Buenos Aires flights are currently cheapest in April.
Mar
from £234
Apr
from £188
May
from £188
Jun
from £229
Jul
from £249
Aug
from £233
Sep
from £232
Oct
from £229
Nov
from £232
Dec
from £236
Jan
from £235
Feb
from £250

Alternative Washington Dulles to Buenos Aires routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Buenos Aires? You could fly into the following airports instead.

Buenos Aires Jorge Newbery

4 miles from central Buenos Aires
Closest
from £195
Search flights

Buenos Aires Ministro Pistarini

17 miles from central Buenos Aires
Cheapest
from £188
Search flights

Washington D.C. to Buenos Aires: Flight information

The things to know before you go.
Cheapest flight found£188
Cheapest month to flyApril

Finding cheap flights from Washington Dulles to Buenos Aires: Frequently asked questions

There are 2 airports in Buenos Aires: Buenos Aires Jorge Newbery and Buenos Aires Ministro Pistarini.
The best price we found for a return flight from Washington Dulles to Buenos Aires is £438. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Buenos Aires. But we found flights with one or more stops from £438.
As of March 2026, there are no flights flying from Washington Dulles to Buenos Aires.
The cheapest month to fly from Washington Dulles to Buenos Aires is usually April.
If you're flying from Washington Dulles Airport, the cheapest airport near Buenos Aires is Buenos Aires Ministro Pistarini – which is 17.2 miles away from the centre of Buenos Aires. We've found flights into this airport from £438.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Buenos Aires on Saturday, 25 April 2026.
No airlines currently offer direct flights between Washington Dulles Airport and Buenos Aires. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buenos Aires but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buenos Aires is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 22°C. January is typically the warmest month in Buenos Aires, when it usually averages around 30°C. You can expect the least rain in June. The coldest month is July, with temperatures averaging 6°C. The rainiest month is March.
Currently, Avianca offers the cheapest flight tickets to Buenos Aires.

Travelling from Washington Dulles International Airport (IAD) to Buenos Aires: what you need to know

  • Buenos Aires is one hour ahead of Washington DC, where Washington Dulles International Airport is located. Buenos Aires observes the UTC-3 timezone.

  • Give yourself plenty of time to make your IAD to Buenos Aires flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • If you're flying during a bank holiday or another peak period, allow for even more time. A good rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • We make it easy to book plane tickets from IAD to Buenos Aires with a stopover. To see your options, deselect 'Direct flights only.' Next, choose a flight with a stop long enough to see the sights of the city of your choice. Major stopovers include:

    • Dallas/Fort Worth International Airport (DFW)

    • El Dorado International Airport (BOG)

    • Tocumen International Airport (PTY)

  • Travelling from central Washington DC to IAD takes about 1 hour 10 minutes on public transport. If you ride-share, drive or grab a cab, you'll cover the 25 miles in 50 minutes or so, depending on traffic.

  • In search of a hotel near IAD? If you're boarding an early flight from Washington Dulles International Airport to Buenos Aires, these stays set you up for a seamless send-off:

  • 74.39% of flights taking off from Washington Dulles International Airport land at their destination on schedule.

  • You'll find IAD at 1 Saarinen Circle.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Buenos Aires

  • £188 is the cheapest price we've found for a one-way Washington Dulles International Airport to Buenos Aires flight. A round-trip plane ticket right now is £438. Depending on when you book and the availability, these fares could change.

  • To pick up cheap flights from IAD to Buenos Aires, book as early as you can. Airlines generally offer lower fares when flights first go on sale.

  • The 'Whole month' search tool will show you the cheapest tickets from Washington Dulles International Airport to Buenos Aires throughout the month. It's an easy way to find a bargain if your travel plans are flexible.

  • Save time looking for cheap flights from IAD to Buenos Aires by creating a Price Alert. You'll receive an email or push notification on the app when a new low fare is offered.

  • Tailor your trip with filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Washington Dulles International Airport to Buenos Aires.

Airports in Buenos Aires

Jorge Newbery Airport (AEP)

  • The distance from Jorge Newbery Airport (AEP) to central Buenos Aires is roughly 9 miles. It'll take you about 20 minutes to get to the centre driving.

  • It'll take around 40 minutes if you're travelling by public transport.

  • If you're arriving on a late flight from Washington Dulles International Airport to Buenos Aires, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and snoozing not long after at one of these hotels near AEP:

  • Travel at your own speed with a Jorge Newbery Airport rental car. Pick up a set of wheels from Hertz, Localiza or rentar low cost and discover more of Buenos Aires and beyond.

  • Lock in the lowest price by reserving your ride from Jorge Newbery Airport about one week in advance of your flight from IAD to Buenos Aires.

Ministro Pistarini Airport (EZE)

  • The centre of Buenos Aires is around 20 miles from Ministro Pistarini Airport (EZE). After your flight from Washington Dulles International Airport to Buenos Aires has hit the runway and you've made your way out of the airport, expect a drive of about 35 minutes.

  • The journey will take roughly 2 hours 10 minutes on public transport.

  • Place the 'Do not disturb' sign on your door and relax at a hotel near EZE. Here are a few options where you can check in after your IAD to Buenos Aires flight:

  • Forget about inconvenient public transport schedules or waiting in a long cab line. Pick up a Ministro Pistarini Airport rental car and take your trip in whatever direction you choose. Compare offers from Hertz, Cactus and Localiza.

  • Get the lowest price by booking your ride from EZE one week in advance. You'll also have access to a bigger selection of vehicles.

Best time to go to Buenos Aires

  • Plan your trip to Buenos Aires during high season if you like a busy atmosphere, but remember that prices are usually higher. Alternatively, book your flights from Washington Dulles International Airport to Buenos Aires during the off-season when prices are cheaper and it's not as busy.

  • The warmest month in Buenos Aires is January, with temperatures ranging between 19ºC (66ºF) and 31ºC (88ºF). Lock in your Washington Dulles International Airport to Buenos Aires plane ticket then if that's your definition of good weather.

  • July sees average temperatures of between 5ºC (41ºF) and 15ºC (59ºF). Look for a cheap ticket from IAD to Buenos Aires around that time if you like cooler conditions.

More about Buenos Aires

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Buenos Aires right here. Check out these hotels after locking in your flight from Washington Dulles International Airport to Buenos Aires:

  • Recoleta Cemetery and Obelisco de Buenos Aires are a couple of big attractions to add to your Buenos Aires itinerary. Continue your sightseeing adventures at Casa Rosada.

Explore more of Argentina

  • Rosario is just one of the many places in Argentina waiting to be discovered after you've experienced Buenos Aires. Around 170 miles away to the north-west, its top attractions include Monumento a la Bandera (Flag Monument), Predio Ferial Parque de la Independencia and Parque Nacional a la Bandera.

  • Around 240 miles south of Buenos Aires, Mar Del Plata is another essential stop in Argentina. Experience major highlights starting with Casino Central de Mar del Plata, Centro Cultural Villa Victoria Ocampo and Villa Ortiz Basualdo.Museo Municipal de Arte Juan Carlos Castagnino.

Plan the rest of your trip from Washington D.C. to Buenos Aires

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.