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Washington, D.C.

$400+ Cheap flights from Buenos Aires (BUE) to Washington, D.C. (WAS)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Buenos Aires to Washington, D.C. are usually found in August or September, booked 67 days in advance, depart on a Thursday or Wednesday and return on a Monday

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

Cheapest flights from Buenos Aires to Washington, D.C.
Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Copa Airlines deal was found by Cheapflights users on 12/16. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:32 pmEZE - IAD
1 stop14h 50mCopa Airlines
Sat 1/31:12 amIAD - EZE
1 stop22h 46mCopa Airlines
Deal found 12/16$671
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/2510:05 pmEZE - IAD
1 stop24h 59mUnited Airlines
Sun 1/118:15 amIAD - EZE
1 stop21h 05mUnited Airlines
Deal found 12/16$684
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/2110:05 pmEZE - DCA
1 stop15h 24mUnited Airlines
Wed 1/142:45 pmDCA - EZE
1 stop14h 35mUnited Airlines
Deal found 12/16$724
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/2110:05 pmEZE - BWI
1 stop20h 13mUnited Airlines
Wed 1/1412:25 pmBWI - EZE
1 stop16h 55mUnited Airlines
Deal found 12/17$724
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/2111:55 pmEZE - IAD
1 stop23h 09mUnited Airlines
Sun 12/286:08 amIAD - EZE
1 stop23h 12mUnited Airlines
Deal found 12/17$724
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:55 pmEZE - IAD
1 stop23h 06mLATAM Airlines
Sun 1/1112:23 pmIAD - EZE
2 stops28h 20mLATAM Airlines
Deal found 12/16$743
This Delta deal was found by Cheapflights users on 12/17. 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.
Sun 12/218:55 pmEZE - DCA
1 stop20h 10mDelta
Sun 12/2810:13 amDCA - EZE
1 stop20h 47mDelta
Deal found 12/17$756
This Delta deal was found by Cheapflights users on 12/17. 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.
Sun 12/2111:55 pmEZE - BWI
1 stop19h 53mDelta
Sun 12/2812:00 pmBWI - EZE
1 stop19h 00mDelta
Deal found 12/17$756
This LATAM Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/218:55 pmEZE - DCA
1 stop14h 18mLATAM Airlines
Wed 1/142:35 pmDCA - EZE
2 stops16h 40mLATAM Airlines
Deal found 12/16$765
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:55 pmEZE - BWI
1 stop22h 53mLATAM Airlines
Sun 1/411:39 amBWI - EZE
1 stop19h 21mLATAM Airlines
Deal found 12/16$770
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:55 pmEZE - IAD
1 stop14h 51mLATAM Airlines
Sun 1/46:00 amIAD - EZE
2 stops49h 35mLATAM Airlines
Deal found 12/16$773
This SmartFares deal was found by Cheapflights users on 12/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:55 pmEZE - DCA
1 stop14h 18mLATAM Airlines
Sun 1/42:01 pmDCA - EZE
1 stop15h 19mLATAM Airlines
Deal found 12/16$788

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

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to Washington, D.C. (WAS). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$642
(Cheapflightsfares)

One-way from

$393
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$881
Provider with most accurate pricing for Buenos Aires (BUE)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Washington, D.C. (WAS) flights.
Search Deals
From Buenos Aires (BUE) to Washington, D.C. (WAS)
Search Deals
One-way flight from Buenos Aires (BUE) to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Washington, D.C. 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 December 18, 2025.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. that are best for you.

Fly from

Buenos Aires

Fly to

Washington, D.C.

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/17

9:25 pm-10:37 am

1 stop15h 12m

Washington, D.C. Reagan-National

Tue 3/17

5:58 pm-8:00 am

1 stop13h 02m

$650

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:31 pm

1 stop20h 06m

Washington, D.C. Dulles Intl

Tue 3/17

6:00 am-8:30 am

1 stop25h 30m

$650

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Sun 3/8

12:23 am-3:11 pm

1 stop15h 48m

Baltimore/Washington

Sun 3/15

4:45 pm-10:58 pm

1 stop29h 13m

$675

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 3/9

7:30 am-2:40 am

2 stops20h 10m

Washington, D.C. Dulles Intl

Sun 3/15

6:45 am-12:35 am

1 stop16h 50m

$696

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 2/1

11:55 pm-8:56 pm

1 stop23h 01m

Washington, D.C. Reagan-National

Sun 2/8

4:28 pm-9:20 am

1 stop14h 52m

$708

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Sun 2/1

11:55 pm-10:25 pm

1 stop24h 30m

Baltimore/Washington

Sun 2/8

8:07 am-9:20 am

1 stop23h 13m

$708

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 2/1

11:55 pm-10:18 pm

1 stop24h 23m

Washington, D.C. Dulles Intl

Sun 2/8

8:15 am-9:20 am

1 stop23h 05m

$708

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 1/28

11:55 pm-1:49 pm

1 stop15h 54m

Washington, D.C. Reagan-National

Thu 2/5

12:40 pm-7:20 am

1 stop16h 40m

$716

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Wed 1/28

11:55 pm-4:06 pm

1 stop18h 11m

Baltimore/Washington

Thu 2/5

12:25 pm-7:20 am

1 stop16h 55m

$724

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Wed 1/28

6:15 am-11:59 pm

2 stops43h 44m

Baltimore/Washington

Mon 2/9

3:45 pm-7:57 am

1 stop14h 12m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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

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 Buenos Aires to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Buenos Aires-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buenos Aires-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Buenos Aires-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buenos Aires-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams 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 Buenos Aires-Washington, D.C. 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 Buenos Aires to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Buenos Aires to Washington, D.C.. Price data was last updated on December 12, 2025.

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buenos Aires to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, July is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $270). Flying from Buenos Aires to Washington, D.C. in February is currently the most expensive (average of $1,000). 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 BUE to WAS?

Find hourly flight availability from Buenos Aires to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from Buenos Aires to Washington, D.C. is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 12% on airfare.

How much does it cost to fly round-trip from Buenos Aires to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated December 18, 2025.
See what other customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Buenos Aires to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.6
Good
1,556 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,893 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,055 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Avianca
6.6
Okay
2,490 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to Washington, D.C.. 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 Buenos Aires to Washington, D.C.?

    For as low as $650, American Airlines can have you in Washington, D.C. from Buenos Aires in 15h 12m. There are 5222 mi between Buenos Aires and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Buenos Aires to Washington, D.C. round-trip from $252. Other airlines that can offer you cheap pricing are Delta, from $270, and Copa Airlines, from $399. Users have found that Avianca is 71% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Buenos Aires to Washington, D.C. are Copa Airlines ($355), Avianca ($375), and American Airlines ($421).

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

    The most popular flight routes from Buenos Aires to Washington, D.C. are Buenos Aires Ministro Pistarini - Washington, D.C. Dulles Intl, Buenos Aires Ministro Pistarini - Washington, D.C. Reagan-National and Buenos Aires Ministro Pistarini - Baltimore/Washington.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $270). Flying from Buenos Aires to Washington, D.C. in February is currently the most expensive (average of $1,000). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buenos Aires to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Ministro Pistarini to Dulles Intl flights
Ministro Pistarini to Reagan-National flights
Jorge Newbery to Dulles Intl flights
Cordoba to Dulles Intl flights
Mendoza to Reagan-National flights

Top 4 airlines flying from Buenos Aires to Washington, D.C.

Discover the top 4 airlines that operate flights from Buenos Aires to Washington, D.C.. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$265Average$684FlexibilityNo cancel feeOn-time71%
DeltaCheapest$270Average$952FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$420Average$871FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$673Average$936FlexibilityNo cancel feeOn-time71%

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