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$332+ Cheap flights from Washington, D.C. (WAS) 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.
WAS — BUE
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Washington, D.C. to Buenos Aires are usually found in May or August, booked 60 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$736
(Kiwi.com)

One-way from

$332
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,043
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 Washington, D.C. (WAS) to Buenos Aires (BUE)
Search Deals
One-way flight from Washington, D.C. (WAS) to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Washington, D.C. to Buenos Aires

Cheapest flights from Washington, D.C. to Buenos Aires
Explore the most affordable flight options available from Washington, D.C. to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/263:27 pmBWI - EZE
1 stop31h 42mCopa Airlines
Tue 2/112:48 pmEZE - BWI
1 stop25h 23mCopa Airlines
Deal found 1/20$736
This Aeromexico deal was found by Cheapflights users on 1/21. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/154:36 pmIAD - EZE
1 stop16h 24mAeromexico
Mon 3/3111:25 pmEZE - IAD
1 stop16h 59mAeromexico
Deal found 1/21$834
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:30 amIAD - EZE
2 stops17h 45mAvianca
Sun 11/166:15 amEZE - IAD
3 stops21h 25mAvianca
Deal found 1/20$838
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/217:17 pmBWI - EZE
3 stops34h 43mMultiple Airlines
Mon 5/126:20 amEZE - BWI
3 stops40h 55mMultiple Airlines
Deal found 1/21$864
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:17 pmBWI - AEP
2 stops34h 43mMultiple Airlines
Mon 4/2810:20 amAEP - BWI
3 stops38h 57mMultiple Airlines
Deal found 1/20$868
This Booking.com deal was found by Cheapflights users on 1/21. 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.
Wed 3/124:10 pmDCA - EZE
2 stops21h 15mAir Canada
Mon 3/244:00 pmEZE - DCA
2 stops24h 29mAir Canada
Deal found 1/21$879
This Air Canada deal was found by Cheapflights users on 1/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/123:55 pmIAD - EZE
2 stops21h 30mAir Canada
Wed 3/264:00 pmEZE - IAD
2 stops24h 13mAir Canada
Deal found 1/20$881
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/185:30 amIAD - AEP
3 stops28h 10mMultiple Airlines
Mon 3/2412:05 amAEP - IAD
3 stops27h 35mMultiple Airlines
Deal found 1/19$907
This Expedia deal was found by Cheapflights users on 1/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/223:25 pmIAD - EZE
1 stop31h 45mMultiple Airlines
Tue 5/612:48 pmEZE - IAD
2 stops24h 11mMultiple Airlines
Deal found 1/19$914
This Priceline deal was found by Cheapflights users on 1/20. 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.
Sun 5/45:45 amIAD - AEP
2 stops22h 55mAvianca
Sat 5/107:00 amAEP - IAD
2 stops20h 45mAvianca
Deal found 1/20$940
This KAYAK deal was found by Cheapflights users on 1/21. 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 5/202:21 amIAD - EZE
1 stop18h 50mCopa Airlines
Wed 5/2810:05 amEZE - IAD
1 stop15h 24mCopa Airlines
Deal found 1/21$963
This LATAM Airlines deal was found by Cheapflights users on 1/20. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/910:05 amIAD - AEP
2 stops28h 55mLATAM Airlines
Mon 8/410:35 amAEP - IAD
2 stops32h 53mLATAM Airlines
Deal found 1/20$975

Find flights from Washington, D.C. to Buenos Aires within your budget

Customize your flight search to find flights from Washington, D.C. 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 4/21

4:49 pm-8:19 am

1 stop14h 30m

Buenos Aires Ministro Pistarini

Sun 5/11

2:13 am-3:15 pm

1 stop14h 02m

$823

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 3/15

4:36 pm-10:00 am

1 stop16h 24m

Buenos Aires Ministro Pistarini

Mon 3/31

11:25 pm-3:24 pm

1 stop16h 59m

$834

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 5/23

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Thu 5/29

1:40 am-2:00 pm

1 stop13h 20m

$839

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 4/21

7:17 pm-7:00 am

3 stops34h 43m

Buenos Aires Ministro Pistarini

Mon 5/12

6:20 am-10:15 pm

3 stops40h 55m

$864

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Thu 4/24

7:17 pm-7:00 am

2 stops34h 43m

Buenos Aires Jorge Newbery

Mon 4/28

10:20 am-12:17 am

3 stops38h 57m

$868

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 3/12

4:10 pm-2:25 pm

2 stops21h 15m

Buenos Aires Ministro Pistarini

Mon 3/24

4:00 pm-3:29 pm

2 stops24h 29m

$879

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 3/12

3:55 pm-2:25 pm

2 stops21h 30m

Buenos Aires Ministro Pistarini

Wed 3/26

4:00 pm-3:13 pm

2 stops24h 13m

$881

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 3/18

5:30 am-10:40 am

3 stops28h 10m

Buenos Aires Jorge Newbery

Mon 3/24

12:05 am-2:40 am

3 stops27h 35m

$907

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 4/22

3:25 pm-12:10 am

1 stop31h 45m

Buenos Aires Ministro Pistarini

Tue 5/6

12:48 pm-11:59 am

2 stops24h 11m

$914

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 5/4

5:45 am-5:40 am

2 stops22h 55m

Buenos Aires Jorge Newbery

Sat 5/10

7:00 am-2:45 am

2 stops20h 45m

$940

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 60 results
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Compare providers for flights from Washington, D.C. to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Buenos Aires in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Buenos Aires flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Buenos Aires flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Buenos Aires flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Washington, D.C. 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.

Travel insights for flights from Washington, D.C. to Buenos Aires

Get recent, data-driven insights about flights from Washington, D.C. to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Buenos Aires. Price data was last updated on January 17, 2025.

The best time to book flights from Washington, D.C. to Buenos Aires is 60 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Buenos Aires (average of $795). Flying from Washington, D.C. to Buenos Aires in December is currently the most expensive (average of $1,260). 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 WAS to BUE?

Find hourly flight availability from Washington, D.C. 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 January 21, 2025.

One of the essential ways to save on airfare from Washington, D.C. to Buenos Aires is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 13% on airfare.

What is the cheapest day to fly from Washington, D.C. to Buenos Aires?

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

Travelers seeking maximum savings on their Washington, D.C. to Buenos Aires flight should consider departing on Monday 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.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated January 21, 2025.
To help decide which airline to fly from Washington, D.C. to Buenos Aires, see what other customers have to say about Avianca, Air Canada and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.7
Good
1,662 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,858 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,849 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines flying from Washington, D.C. to Buenos Aires round-trip?

    According to our current data, Copa Airlines ($736), Aeromexico ($834), and Avianca ($839) offers the cheapest pricing from Washington, D.C. to Buenos Aires. Copa Airlines is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. to Buenos Aires one-way?

    The cheapest airline one-way is Copa Airlines, with whom users have recently found tickets for as low as $340. However, be on the lookout for offers from Avianca and Delta, as they are both options that can get you from Washington, D.C. to Buenos Aires for a low price.

  • What are the most popular routes from Washington, D.C. 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 Washington, D.C. to Buenos Aires.

  • Where are the most common layover locations when flying from Washington, D.C. to Buenos Aires?

    Flights departing from Washington, D.C. and landing in Buenos Aires layover in Bogotá most frequently. Panama City is the second most popular location for layovers on flights from Washington, D.C. to Buenos Aires. Atlanta follows Panama City in terms of the most frequent layover location on Washington, D.C. to Buenos Aires flights.

  • What are some popular things to do or see while on a layover in Bogotá?

    Plaza de Bolívar, Museo Botero, and Colombian National Museum are the most popular attractions in Bogotá if you're in need of something to do during your layover. Plaza de Bolívar, Museo Botero and Colombian National Museum are located about 8.7 mi, 8.9 mi, and 8.0 mi, respectively from Bogotá El Dorado if you are interested in checking them out. Those landing in Bogotá looking to spend some time exploring during their layover can rent a car for about $50 per day.

  • What are some popular points of interest to see during a layover in Panama City?

    Panama City travelers tend to visit Amador Causeway, Panama Canal, and Soberania National Park more than any other notable places. Amador Causeway, Panama Canal, and Soberania National Park are located about 14.7 mi, 15.1 mi, and 18.4 mi, respectively from Panama City Tocumen Intl. Those landing in Panama City looking to spend some time exploring during their layover can rent a car for about $16 per day.

  • What are points of interest worth seeing during a layover in Atlanta?

    Most Atlanta visitors opt to spend their time at Georgia Aquarium, Fox Theatre, and World of Coca-Cola. Georgia Aquarium, Fox Theatre and World of Coca-Cola are located about 8.6 mi, 9.3 mi, and 8.6 mi, respectively from Atlanta Hartsfield-Jackson if you are interested in checking them out. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $43 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Washington, D.C. to Buenos Aires flights?

    The least popular layover on flights from Washington, D.C. to Buenos Aires is Miami. Miami is followed by New York in terms of the least popular layover location on flights from Washington, D.C. to Buenos Aires.

  • Can I find deals for flights from Washington, D.C. to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Buenos Aires?

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

  • Can I find deals for business class flights from Washington, D.C. to Buenos Aires?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Buenos Aires (average of $795). Flying from Washington, D.C. to Buenos Aires in December is currently the most expensive (average of $1,260). 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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Top 6 airlines flying from Washington, D.C. to Buenos Aires

Discover the top 6 airlines that operate flights from Washington, D.C. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$549Average$938FlexibilityNo cancel feeOn-time70%
AviancaCheapest$698Average$905FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$723Average$1,150FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$823Average$1,156FlexibilityNo cancel feeOn-time69%
DeltaCheapest$963Average$1,170FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$982Average$1,096FlexibilityNo cancel feeOn-time81%
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