IAD - BUE

$297 Find Cheap Flights from Washington, D.C. to Buenos Aires - Compare and Save

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 9/14. 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

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Everything you should know

Cheapest round-trip
$689
Typical prices: $486-$845
Copa Airlines
Tue 9/8Thu 9/17
IAD - EZE • 1 stop
Cheapest one-way
$297
Typical prices: $270-$316
Multiple Airlines
Mon 9/14
IAD - EZE • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Buenos Aires. You'll need at least 1 connection.
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Top layover airports
New York (JFK)
Cheapest • Avg $635 (round-trip)
Bogotá (BOG)
Shortest trip • 13h 06m (one-way)
Insights
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When to travel
September
Cheapest • 17% price drop
December
Most popular
Good to know
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+1
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Good to know
+1
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Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Buenos Aires

Tue, Sep 8 - Thu, Sep 17
Copa Airlines Logo
4:34 pm - 7:57 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
14h 23m1 stop Panama City Tocumen Intl
Copa Airlines Logo
2:49 pm - 4:20 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
14h 31m1 stop Panama City Tocumen Intl
$689Copa Airlines
Tue, Nov 3 - Mon, Nov 16
Copa Airlines Logo
3:37 pm - 5:53 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
12h 16m1 stop Panama City Tocumen Intl
Copa Airlines Logo
2:33 pm - 3:15 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
14h 42m1 stop Panama City Tocumen Intl
$689Copa Airlines
Sun, Sep 20 - Mon, Oct 5
Multiple Airlines Logo
7:34 pm - 9:45 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
13h 11m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:49 pm - 4:20 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
14h 31m1 stop Panama City Tocumen Intl
$693Multiple Airlines
Sun, Sep 6 - Tue, Sep 22
Multiple Airlines Logo
5:47 pm - 9:45 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
14h 58m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:49 pm - 12:32 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
34h 43m1 stop Panama City Tocumen Intl
$695Multiple Airlines
Mon, Oct 5 - Tue, Oct 20
LATAM Airlines Logo
5:12 pm - 9:40 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
15h 28m2 stops Atlanta Hartsfield-Jackson Miami
LATAM Airlines Logo
7:35 am - 12:42 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
18h 07m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$700LATAM Airlines
Mon, Oct 5 - Mon, Oct 19
LATAM Airlines Logo
5:12 pm - 9:40 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
15h 28m2 stops Atlanta Hartsfield-Jackson Miami
LATAM Airlines Logo
3:55 am - 12:42 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
21h 47m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$700LATAM Airlines
Sat, Jan 16 - Thu, Jan 28
Delta Logo
1:00 pm - 7:35 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
16h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:20 am - 12:20 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
19h 00m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$718Delta
Sat, Jan 16 - Wed, Jan 27
Delta Logo
1:00 pm - 7:35 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
16h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:20 am - 12:20 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
19h 00m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$718Delta
Wed, Feb 3 - Wed, Feb 17
United Airlines Logo
6:30 am - 7:20 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
22h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
10:05 pm - 11:37 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
15h 32m1 stop Houston George Bush Intcntl
$718United Airlines
Wed, Jan 13 - Tue, Jan 26
United Airlines Logo
8:25 am - 7:20 amIAD  Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini
20h 55m1 stop Houston George Bush Intcntl
United Airlines Logo
10:05 pm - 11:37 amEZE  Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl
15h 32m1 stop Houston George Bush Intcntl
$718United 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. Dulles Intl Airport to Buenos Aires?

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. Dulles Intl Airport to Buenos Aires departing in September.

Flight prices are typical for this route right now.

Flights to Buenos Aires from Washington, D.C. Dulles Intl Airport usually cost between $657 and $854 in September.
The lowest price found in the past 5 days was $689 on Copa Airlines (Sep 8-Sep 17).

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 round-trip 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 $643 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $1,033 and $822 respectively.

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

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 Buenos Aires, 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 Buenos Aires, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Find deals

Good to know

Low season

August

Cheapest flight

$297
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 56% increase in price.
Flight from Washington Dulles Airport to Buenos Aires Ministro Pistarini

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 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Buenos Aires was $297 for a one-way ticket and $689 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?

    SkyTeam, 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 $710 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 $721 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.

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

Information on your arrival and departure airports

Washington, D.C. (IAD)