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Washington, D.C.

$359+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — WAS
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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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 July 24, 2026.

This American Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 8/611:35 pm
EZE
-
DCA
1 stop14h 03m
American Airlines
Mon 8/2411:54 am
DCA
-
EZE
1 stop19h 51m
American Airlines
Deal found 7/22$628
This American Airlines deal was found by Cheapflights users on 7/23. 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 11/189:40 pm
EZE
-
BWI
1 stop15h 19m
American Airlines
Wed 12/25:04 pm
BWI
-
EZE
1 stop13h 36m
American Airlines
Deal found 7/23$628
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Tue 8/49:15 am
EZE
-
IAD
2 stops15h 55m
American Airlines
Mon 8/241:23 pm
IAD
-
EZE
2 stops18h 22m
American Airlines
Deal found 7/22$632
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/2610:30 pm
EZE
-
DCA
1 stop17h 16m
American Airlines
Thu 9/35:24 pm
DCA
-
EZE
1 stop14h 21m
American Airlines
Deal found 7/22$639
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/2610:30 pm
EZE
-
BWI
1 stop21h 00m
American Airlines
Thu 9/310:40 am
BWI
-
EZE
1 stop19h 35m
American Airlines
Deal found 7/22$639
This Gotogate deal was found by Cheapflights users on 7/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:48 am
EZE
-
IAD
1 stop21h 45m
Copa Airlines
Tue 8/112:25 am
IAD
-
EZE
1 stop25h 11m
Copa Airlines
Deal found 7/19$641
This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:10 pm
EZE
-
IAD
2 stops22h 01m
American Airlines
Wed 12/29:15 am
IAD
-
EZE
2 stops20h 10m
American Airlines
Deal found 7/21$644
This Avianca deal was found by Cheapflights users on 7/22. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:10 am
EZE
-
IAD
2 stops20h 35m
Avianca
Fri 8/146:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Deal found 7/22$647
This Avianca deal was found by Cheapflights users on 7/22. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:00 am
AEP
-
IAD
2 stops20h 45m
Avianca
Fri 8/213:35 pm
IAD
-
AEP
1 stop13h 05m
Avianca
Deal found 7/22$647
This Avianca deal was found by Cheapflights users on 7/20. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
AEP
-
IAD
2 stops20h 45m
Avianca
Mon 8/246:50 am
IAD
-
AEP
1 stop21h 50m
Avianca
Deal found 7/20$649
This United Airlines deal was found by Cheapflights users on 7/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:00 pm
EZE
-
IAD
1 stop28h 31m
United Airlines
Sun 8/166:30 am
IAD
-
EZE
1 stop24h 30m
United Airlines
Deal found 7/21$652
This LATAM Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 8/263:45 pm
EZE
-
DCA
2 stops23h 20m
LATAM Airlines
Thu 9/32:00 pm
DCA
-
EZE
2 stops20h 30m
LATAM Airlines
Deal found 7/24$660

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$628
(American Airlines)

One-way from

$359
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$770
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. 3% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 24, 2026.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 8/6

11:35 pm-12:38 pm

1 stop14h 03m

Washington, D.C. Reagan-National

Mon 8/24

11:54 am-8:45 am

1 stop19h 51m

$629

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Thu 8/6

9:00 pm-4:30 pm

1 stop20h 30m

Baltimore/Washington

Mon 8/24

3:04 pm-8:00 am

1 stop15h 56m

$661

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 8/6

5:25 am-12:33 am

1 stop20h 08m

Washington, D.C. Dulles Intl

Mon 8/17

6:26 am-4:36 am

1 stop21h 10m

$673

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 8/6

2:49 pm-4:21 am

1 stop14h 32m

Washington, D.C. Dulles Intl

Mon 8/24

4:34 pm-7:57 am

1 stop14h 23m

$673

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 8/6

2:49 pm-4:21 am

1 stop14h 32m

Washington, D.C. Dulles Intl

Sat 8/15

2:25 am-7:57 am

1 stop28h 32m

$698

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 8/4

8:59 am-4:21 am

1 stop20h 22m

Washington, D.C. Dulles Intl

Thu 8/13

2:25 am-10:26 pm

1 stop19h 01m

$698

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 8/6

9:00 pm-9:06 pm

1 stop25h 06m

Washington, D.C. Reagan-National

Sun 8/16

8:20 am-8:00 am

1 stop22h 40m

$724

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Wed 10/21

3:48 am-12:32 am

1 stop21h 44m

Washington, D.C. Dulles Intl

Wed 11/11

1:16 am-3:52 am

1 stop24h 36m

$736

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Tue 9/8

8:10 pm-3:40 pm

1 stop20h 30m

Baltimore/Washington

Tue 9/22

2:03 pm-9:40 am

2 stops18h 37m

$739

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Thu 8/6

8:10 pm-9:19 am

1 stop14h 09m

Baltimore/Washington

Mon 8/24

2:18 pm-9:40 am

2 stops18h 22m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buenos Aires-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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

Currently, March is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $746). Flying from Buenos Aires to Washington, D.C. in February is currently the most expensive (average of $948). 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.

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

Airfare is below average for this route at the moment.
Buenos Aires to Washington, D.C. flights typically cost between $674 and $962 in August.
The cheapest round-trip price found within the last 5 days was $628 on American Airlines (Aug 6-Aug 24).

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

Booking 82 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.

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 July 24, 2026.
See what other customers who have flown with Delta,Copa Airlines, andLATAM 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
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,482 reviews
Delta
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Copa Airlines
7.6
Good
1,560 reviews
Delta
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
LATAM Airlines
7.4
Good
1,965 reviews
Delta
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
American Airlines
7.1
Good
11,843 reviews
Delta
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Avianca
6.5
Okay
2,520 reviews
Delta
7.8
Good
8,482 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 $628, American Airlines can have you in Washington, D.C. from Buenos Aires in 14h 03m. 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 $232. Other airlines that can offer you cheap pricing are Delta, from $344, and Copa Airlines, from $378. Users have found that Avianca is 70% 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 American Airlines ($351), Copa Airlines ($356), and Avianca ($375).

  • 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 - Baltimore/Washington and Buenos Aires Ministro Pistarini - Washington, D.C. Reagan-National.

  • 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, March is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $746). Flying from Buenos Aires to Washington, D.C. in February is currently the most expensive (average of $948). 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
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge
Largo

Browse thousands of different options on Cheapflights for your next trip

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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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$232Average$695FlexibilityNo cancel feeOn-time71%
DeltaCheapest$344Average$888FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$378Average$656FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$673Average$889FlexibilityNo cancel feeOn-time71%

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