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Buenos Aires

$275+ Cheap flights from District of Columbia to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BUE
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from District of Columbia to Buenos Aires

Cheapest flights from District of Columbia to Buenos Aires
Explore the most affordable flight options available from District of Columbia to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This FlightHub deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:45 amIAD - EZE
1 stop16h 50mAvianca
Mon 11/241:40 amEZE - IAD
2 stops26h 00mAvianca
Deal found 11/2$637
This Priceline deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:30 amIAD - EZE
2 stops23h 20mAvianca
Tue 11/117:30 amEZE - IAD
2 stops20h 10mAvianca
Deal found 11/2$638
This KAYAK deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:11 pmIAD - AEP
2 stops20h 19mLATAM Airlines
Fri 12/123:40 pmAEP - IAD
2 stops20h 33mLATAM Airlines
Deal found 11/3$640
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:55 pmIAD - EZE
1 stop18h 25mUnited Airlines
Fri 12/1210:05 pmEZE - IAD
1 stop15h 18mUnited Airlines
Deal found 11/3$640
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:03 pmDCA - EZE
1 stop15h 12mDelta
Sat 11/228:55 pmEZE - DCA
1 stop14h 15mDelta
Deal found 11/2$640
This Booking.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/164:30 amIAD - EZE
2 stops23h 20mAvianca
Sat 11/227:30 amEZE - IAD
1 stop22h 55mAvianca
Deal found 11/2$643
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:58 pmIAD - EZE
2 stops18h 42mAmerican Airlines
Fri 12/511:59 pmEZE - IAD
2 stops21h 32mAmerican Airlines
Deal found 11/3$644
This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:00 pmDCA - EZE
1 stop18h 20mAmerican Airlines
Wed 11/2611:59 pmEZE - DCA
2 stops16h 25mAmerican Airlines
Deal found 11/2$644
This FlightHub deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:45 amIAD - EZE
1 stop22h 05mAvianca
Tue 12/21:40 amEZE - IAD
1 stop13h 35mAvianca
Deal found 11/2$645
This FlightHub deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:45 amIAD - AEP
1 stop21h 55mAvianca
Sun 11/167:00 amAEP - IAD
1 stop23h 25mAvianca
Deal found 11/2$647
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:21 pmIAD - EZE
1 stop33h 59mDelta
Wed 12/310:25 pmEZE - IAD
1 stop15h 14mDelta
Deal found 10/31$647
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:35 pmDCA - EZE
1 stop33h 45mDelta
Wed 12/38:55 pmEZE - DCA
1 stop14h 15mDelta
Deal found 10/31$647

Cheap flight deals from District of Columbia to Buenos Aires

Keep the following information in mind while searching for District of Columbia to Buenos Aires flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$637
(Priceline)

One-way from

$275
(LATAM Airlines)

Popular in

December

Cheapest in

August

Average price

$872
Provider with most accurate pricing for Washington, D.C. (WAS)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Buenos Aires (BUE) flights.
Search Deals
From District of Columbia to Buenos Aires (BUE)
Search Deals
One-way flight from District of Columbia to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from District of Columbia to Buenos Aires that are best for you.

Fly from

District of Columbia

Fly to

Buenos Aires

Route

Depart

Return

Price

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 1/20

12:23 pm-10:30 am

2 stops20h 07m

Buenos Aires Jorge Newbery

Mon 2/2

10:35 am-11:43 am

2 stops27h 08m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 1/21

12:23 pm-10:15 am

1 stop19h 52m

Buenos Aires Ministro Pistarini

Sun 2/1

4:05 am-12:24 am

2 stops22h 19m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 1/20

6:03 am-7:20 am

1 stop23h 17m

Buenos Aires Ministro Pistarini

Tue 2/3

10:05 pm-4:14 pm

1 stop20h 09m

$640

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 11/18

12:11 pm-10:30 am

2 stops20h 19m

Buenos Aires Jorge Newbery

Sat 11/22

3:40 pm-11:31 am

2 stops21h 51m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 1/22

10:11 am-9:00 am

1 stop20h 49m

Buenos Aires Ministro Pistarini

Wed 2/4

10:25 pm-11:43 am

1 stop15h 18m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 2/8

8:15 am-7:20 am

1 stop21h 05m

Buenos Aires Ministro Pistarini

Mon 2/23

10:05 pm-11:26 am

1 stop15h 21m

$640

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 1/19

10:11 am-7:55 am

2 stops19h 44m

Buenos Aires Jorge Newbery

Mon 2/2

10:35 am-11:44 am

2 stops27h 09m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 1/23

3:42 pm-2:55 pm

2 stops21h 13m

Buenos Aires Ministro Pistarini

Wed 2/4

8:00 am-12:24 am

2 stops18h 24m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 12/2

12:45 pm-9:20 am

1 stop18h 35m

Buenos Aires Ministro Pistarini

Tue 12/9

11:55 pm-4:18 pm

1 stop18h 23m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 1/20

12:40 pm-9:00 am

1 stop18h 20m

Buenos Aires Ministro Pistarini

Thu 2/5

8:00 am-12:24 am

2 stops18h 24m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 60 results
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Best time to book a flight from District of Columbia to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Buenos Aires

What is the cheapest month to book a flight from District of Columbia to Buenos Aires?

Currently, March is the cheapest month in which you can book a flight from District of Columbia to Buenos Aires (average of $278). Flying from District of Columbia to Buenos Aires in February is currently the most expensive (average of $725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to BUE?

Find hourly flight availability from District of Columbia to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

A simple way to save on the total cost of your ticket is to fly from District of Columbia to Buenos Aires in the evening. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from District of Columbia to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Buenos Aires. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their District of Columbia to Buenos Aires flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from District of Columbia to Buenos Aires?

    A quick flight from District of Columbia to Buenos Aires can take about 19h 52m. LATAM Airlines provides one of the quickest options available for as low as $640. The distance from District of Columbia to Buenos Aires is about 5235 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from District of Columbia to Buenos Aires one-way?

    To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at $275. Delta flights start at $275 while deals on American Airlines start at $275 one-way.

  • What are the most popular routes from District of Columbia to Buenos Aires?

    While some choose either Washington, D.C. Reagan-National - Buenos Aires Ministro Pistarini or Washington, D.C. Dulles Intl - Buenos Aires Jorge Newbery, Washington, D.C. Dulles Intl - Buenos Aires Ministro Pistarini is the most popular route from District of Columbia to Buenos Aires.

  • Can I find deals for flights from District of Columbia to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Buenos Aires.

  • Can I find deals for business class flights from District of Columbia to Buenos Aires?

    Yes. Cheapflights offers flight deals from District of Columbia to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Buenos Aires?

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to Buenos Aires (average of $278). Flying from District of Columbia to Buenos Aires in February is currently the most expensive (average of $725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for District of Columbia to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Ministro Pistarini flights
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Top 6 airlines flying from District of Columbia to Buenos Aires

Discover the top 6 airlines that operate flights from District of Columbia to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$506Average$687FlexibilityNo cancel feeOn-time81%
AviancaCheapest$600Average$814FlexibilityNo cancel feeOn-time71%
DeltaCheapest$609Average$1,035FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$617Average$825FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$629Average$857FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$639Average$1,013FlexibilityNo cancel feeOn-time71%

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