How long is the flight from Washington, D.C. to Buenos Aires?

Departing from Washington, D.C. to Buenos Aires will take you 22h. The distance between Washington, D.C. and Buenos Aires is about 5219 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 flying from Washington, D.C. to Buenos Aires round-trip?

According to our current data, United Airlines ($265), Delta ($274), and LATAM Airlines ($317) offers the cheapest pricing from Washington, D.C. to Buenos Aires. United Airlines is 67% cheaper than the average price of flights available within the next 90 days to this destination.

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.

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).

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

While some choose either Baltimore/Washington - Buenos Aires Ministro Pistarini or Washington, D.C. Reagan-National - Buenos Aires Ministro Pistarini, Washington, D.C. Dulles Intl - Buenos Aires Ministro Pistarini is the most popular route from Washington, D.C. to Buenos Aires.

What are the most popular airlines that fly from Washington, D.C. to Buenos Aires?

When booking a flight from Washington, D.C. to Buenos Aires, you may want to consider flying on Copa Airlines, Delta or LATAM Airlines as they are the most popular for this route.

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 Atlanta most frequently. Bogotá is the second most popular location for layovers on flights from Washington, D.C. to Buenos Aires.

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 Houston in terms of the least popular layover location on flights from Washington, D.C. to Buenos Aires.

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

Georgia Aquarium, Centennial Olympic Park, and Fox Theatre are the most popular attractions in Atlanta if you're in need of something to do during your layover. Georgia Aquarium, Centennial Olympic Park and Fox Theatre are located about 8.6 mi, 8.4 mi, and 9.3 mi, respectively from Atlanta Hartsfield-Jackson if you are interested in checking them out. Those landing in Atlanta looking to spend some time exploring during their layover can rent a car for about $49 per day.

What are some popular points of interest to see during a layover in Bogotá?

Bogotá travelers tend to visit Museo del Oro, Museo Botero, and Plaza de Bolívar more than any other notable places. Museo del Oro, Museo Botero, and Plaza de Bolívar are located about 8.6 mi, 8.9 mi, and 8.7 mi, respectively from Bogotá El Dorado. Those landing in Bogotá looking to spend some time exploring during their layover can rent a car for about $57 per day.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Buenos Aires as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C.-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 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 Washington, D.C.-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$310+ Cheap Flights from Washington, D.C. to Buenos Aires

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

Cheapest

Best

Last-minute

One-way

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 September 17, 2026.

Tue 11/246:00 am -

1 stop25h 20m

Thu 12/1011:55 pm -

1 stop24h 49m

Deal found 9/16

$690

Sun 11/83:43 pm -

1 stop31h 28m

Tue 11/172:02 am -

1 stop14h 12m

Deal found 9/12

$705

Sun 11/153:37 pm -

1 stop31h 15m

Mon 11/234:25 am -

1 stop24h 50m

Deal found 9/12

$706

Wed 11/113:43 pm -

1 stop33h 27m

Thu 11/192:45 pm -

1 stop25h 29m

Deal found 9/13

$708

Fri 11/1311:51 am -

1 stop17h 29m

Sat 11/219:30 pm -

1 stop15h 30m

Deal found 9/14

$710

Tue 10/61:45 pm -

2 stops27h 36m

Tue 10/207:21 pm -

2 stops19h 35m

Deal found 9/12

$711

Sun 10/114:49 pm -

1 stop14h 08m

Thu 10/222:17 am -

1 stop13h 58m

Deal found 9/14

$712

Fri 11/139:39 am -

2 stops21h 01m

Fri 11/2010:25 pm -

1 stop22h 49m

Deal found 9/13

$714

Fri 10/94:49 pm -

1 stop32h 41m

Fri 10/234:15 am -

1 stop36h 00m

Deal found 9/14

$716

Tue 11/246:00 am -

1 stop25h 20m

Tue 12/810:05 pm -

1 stop15h 21m

Deal found 9/16

$718

Tue 11/246:00 am -

1 stop25h 20m

Wed 12/911:55 pm -

1 stop15h 49m

Deal found 9/16

$718

Mon 11/91:16 am -

1 stop26h 04m

Fri 11/202:45 pm -

1 stop14h 30m

Deal found 9/16

$719

Best flights from Washington, D.C. to Buenos Aires
Discover carefully curated flight deals from Washington, D.C. to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Tue 11/246:00 am -

1 stop25h 20m

Thu 11/2610:05 pm -

1 stop20h 20m

Deal found 9/15

$714

Wed 11/111:16 am -

1 stop22h 54m

Mon 11/232:45 pm -

1 stop14h 30m

Deal found 9/15

$718

Wed 2/244:00 pm -

2 stops22h 00m

Fri 3/58:05 pm -

2 stops23h 25m

Deal found 9/14

$738

Mon 11/306:20 pm -

1 stop14h 35m

Mon 12/149:30 pm -

1 stop13h 46m

Deal found 9/16

$765

Mon 11/24:35 am -

2 stops23h 05m

Thu 11/127:05 am -

2 stops33h 50m

Deal found 9/16

$949

Sun 10/2511:07 am -

3 stops21h 39m

Sun 11/89:30 pm -

3 stops25h 34m

Deal found 9/16

$1,174

Sat 11/71:16 am -

1 stop24h 00m

Fri 11/139:10 am -

1 stop16h 23m

Deal found 9/15

$734

Fri 11/1312:00 pm -

2 stops19h 50m

Mon 11/1611:35 pm -

1 stop15h 19m

Deal found 9/14

$764

Thu 11/265:02 pm -

1 stop15h 53m

Sat 12/57:35 pm -

2 stops20h 29m

Deal found 9/16

$768

Thu 11/122:00 pm -

2 stops17h 50m

Mon 11/239:30 pm -

1 stop20h 14m

Deal found 9/15

$764

Mon 9/211:05 pm -

1 stop17h 55m

Mon 10/59:00 pm -

1 stop20h 27m

Deal found 9/16

$844

Tue 11/33:37 pm -

1 stop31h 34m

Wed 11/114:20 am -

1 stop24h 55m

Deal found 9/16

$784

Wed 11/41:45 pm -

2 stops26h 50m

Mon 11/97:35 pm -

2 stops20h 29m

Deal found 9/16

$799

Mon 10/196:00 am -

1 stop25h 00m

Fri 11/1310:05 pm -

1 stop15h 42m

Deal found 9/14

$846

Thu 11/123:00 pm -

2 stops16h 50m

Mon 11/239:30 pm -

1 stop20h 29m

Deal found 9/15

$772

Sun 10/42:25 am -

1 stop21h 26m

Sun 10/185:25 am -

1 stop23h 55m

Deal found 9/16

$812

Sat 3/65:50 am -

1 stop21h 50m

Sat 3/137:05 am -

2 stops33h 50m

Deal found 9/16

$1,015

Mon 10/196:00 am -

1 stop25h 00m

Thu 11/1211:55 pm -

1 stop18h 14m

Deal found 9/14

$846

Tue 12/12:00 pm -

2 stops17h 50m

Tue 12/89:30 pm -

1 stop16h 09m

Deal found 9/16

$772

Sun 10/42:25 am -

1 stop21h 26m

Mon 10/125:25 am -

1 stop23h 55m

Deal found 9/15

$824

Tue 10/271:45 pm -

2 stops25h 15m

Tue 11/35:35 pm -

2 stops19h 51m

Deal found 9/12

$920

Tue 10/1310:18 pm -

1 stop32h 42m

Mon 10/199:00 pm -

1 stop23h 02m

Deal found 9/15

$855

Fri 10/3011:09 am -

3 stops21h 52m

Sat 11/73:30 am -

2 stops19h 27m

Deal found 9/16

$1,216

Mon 10/2611:05 am -

2 stops22h 13m

Fri 12/47:20 am -

2 stops18h 23m

Deal found 9/16

$957

Tue 11/31:16 am -

1 stop20h 51m

Sat 11/144:25 am -

1 stop24h 50m

Deal found 9/12

$880

Mon 10/56:00 am -

1 stop25h 00m

Sun 10/189:00 pm -

1 stop22h 28m

Deal found 9/16

$928

Sat 2/274:00 pm -

2 stops22h 00m

Thu 3/45:35 pm -

2 stops18h 26m

Deal found 9/14

$952

Fri 11/63:37 pm -

1 stop31h 34m

Mon 11/232:45 pm -

1 stop14h 30m

Deal found 9/16

$890

Tue 11/31:45 pm -

2 stops26h 45m

Thu 11/125:35 pm -

2 stops25h 45m

Deal found 9/16

$991

Tue 10/2012:57 pm -

1 stop18h 03m

Fri 11/1311:55 pm -

1 stop23h 02m

Deal found 9/14

$930

Last-minute flights from Washington, D.C. to Buenos Aires
Discover last-minute flight deals from Washington, D.C. to Buenos Aires. Data last updated September 17, 2026 and is based on user searches.

Wed 9/1612:45 pm -

1 stop18h 15m

Wed 9/239:00 pm -

1 stop23h 02m

Deal found 9/16

$735

Wed 9/1610:58 am -

1 stop20h 02m

Wed 9/239:00 pm -

1 stop25h 05m

Deal found 9/16

$735

Thu 9/176:00 am -

1 stop25h 00m

Mon 9/289:00 pm -

1 stop20h 13m

Deal found 9/14

$722

Thu 9/1710:29 pm -

1 stop32h 31m

Mon 9/289:00 pm -

1 stop25h 07m

Deal found 9/14

$731

Thu 9/177:10 pm -

1 stop12h 20m

Mon 9/2810:15 pm -

1 stop15h 33m

Deal found 9/16

$735

Fri 9/186:30 am -

1 stop24h 30m

Thu 10/89:00 pm -

1 stop23h 02m

Deal found 9/14

$720

Fri 9/186:00 am -

1 stop25h 00m

Thu 10/89:00 pm -

1 stop25h 05m

Deal found 9/14

$720

Fri 9/183:02 pm -

1 stop15h 58m

Thu 9/249:00 pm -

1 stop23h 02m

Deal found 9/14

$722

Tue 10/61:45 pm -

2 stops27h 36m

Tue 10/207:21 pm -

2 stops19h 35m

Deal found 9/12

$711

Wed 10/74:49 pm -

1 stop34h 47m

Tue 10/1312:10 am -

1 stop16h 05m

Deal found 9/13

$723

Fri 10/94:49 pm -

1 stop32h 41m

Fri 10/234:15 am -

1 stop36h 00m

Deal found 9/14

$716

Sun 10/114:49 pm -

1 stop14h 08m

Thu 10/222:17 am -

1 stop13h 58m

Deal found 9/14

$712

One-way flights from Washington, D.C. to Buenos Aires
Search for one-way flight options from Washington, D.C. to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Thu 12/101:35 pm -

2 stops15h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$310

Mon 12/72:24 pm -

1 stop16h 56m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$315

Fri 11/2711:50 am -

1 stop18h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$315

Mon 11/1612:50 pm -

1 stop18h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$315

Fri 11/63:43 pm -

1 stop34h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$320

Mon 11/164:05 pm -

2 stops15h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$320

Wed 12/210:44 am -

2 stops21h 31m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$321

Sun 10/184:49 pm -

1 stop28h 37m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$321

Wed 12/211:55 am -

1 stop18h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$321

Tue 11/101:16 am -

1 stop21h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$322

Mon 11/306:20 pm -

1 stop14h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$323

Thu 12/312:00 pm -

1 stop17h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$323

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$690 (United Airlines)
One-way from	$310 (American Airlines)
Popular in	December
Cheapest in	May
Average price	$729

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. 6% potential increase in price ($55 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Buenos Aires

DCA Washington, D.C. Reagan-National - EZE Buenos Aires Ministro Pistarini

DCAEZE

Washington, D.C. Reagan-National

Mon 11/16

12:50 pm-9:20 am

1 stop18h 30m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$315

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Mon 11/16

8:00 am-9:50 am

2 stops23h 50m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Wed 12/2

12:35 pm-9:40 am

2 stops19h 05m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Quickest round-trip

BaltimoreBuenos Aires

BWI Baltimore/Washington - EZE Buenos Aires Ministro Pistarini

BWIEZE

Baltimore/Washington

Fri 11/27

7:22 pm-10:00 am

1 stop12h 38m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Mon 11/30

3:00 pm-9:50 am

2 stops16h 50m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

DCA Washington, D.C. Reagan-National - AEP Buenos Aires Jorge Newbery

DCAAEP

Washington, D.C. Reagan-National

Fri 11/27

12:26 pm-12:00 pm

2 stops21h 34m

Buenos Aires Jorge Newbery

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Fri 11/27

11:10 am-9:40 am

1 stop20h 30m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

DCA Washington, D.C. Reagan-National - EZE Buenos Aires Ministro Pistarini

DCAEZE

Washington, D.C. Reagan-National

Sun 11/22

10:15 am-9:40 am

1 stop21h 25m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

DCA Washington, D.C. Reagan-National - EZE Buenos Aires Ministro Pistarini

DCAEZE

Washington, D.C. Reagan-National

Mon 11/30

5:02 pm-10:55 am

1 stop15h 53m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$325

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Sat 11/14

5:54 pm-9:20 am

1 stop37h 26m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from Washington, D.C. to Buenos Aires

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 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 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.

WAS-BUE

BWI-EZE

IAD-EZE

IAD-AEP

BWI-AEP

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 Washington, D.C. to Buenos Aires

WAS-BUE

BWI-EZE

IAD-EZE

IAD-AEP

BWI-AEP

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Buenos Aires (average of $677). Flying from Washington, D.C. to Buenos Aires in December is currently the most expensive (average of $1,076). 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 Washington, D.C. to Buenos Aires?

Airfare is typical for this route at the moment.

Washington, D.C. to Buenos Aires flights typically cost between $647 and $906 in November.
The cheapest round-trip price found within the last 5 days was $690 on United Airlines (Nov 24-Dec 8).

What’s the top layover airport for flights from Washington, D.C. to Buenos Aires?

Panama City (PTY) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. to Buenos Aires on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Buenos Aires?

Panama City (PTY) is the most affordable 1-stop option, with an average round-trip price of $608.

What’s the fastest layover option from Washington, D.C. to Buenos Aires?

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 13h 07m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Buenos Aires?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 40m.

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

The best time to book flights from Washington, D.C. to Buenos Aires is 5 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.

Reviews of airlines servicing Buenos Aires

Peruse reviews from past customers who have flown with Delta,Copa Airlines, andLATAM Airlines from Washington, D.C. to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Delta

7.8

Good

8,579 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Copa Airlines

7.6

Good

1,543 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

LATAM Airlines

7.4

Good

1,985 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

United Airlines

7.4

Good

10,214 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

American Airlines

7.1

Good

12,076 reviews

Delta

7.8

Good

8,579 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

How long is the flight from Washington, D.C. to Buenos Aires?
Departing from Washington, D.C. to Buenos Aires will take you 22h. The distance between Washington, D.C. and Buenos Aires is about 5219 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 flying from Washington, D.C. to Buenos Aires round-trip?
According to our current data, United Airlines ($265), Delta ($274), and LATAM Airlines ($317) offers the cheapest pricing from Washington, D.C. to Buenos Aires. United Airlines is 67% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most popular routes from Washington, D.C. to Buenos Aires?
While some choose either Baltimore/Washington - Buenos Aires Ministro Pistarini or Washington, D.C. Reagan-National - Buenos Aires Ministro Pistarini, 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 Atlanta most frequently. Bogotá is the second most popular location for layovers on flights from Washington, D.C. to Buenos Aires.
What are some popular things to do or see while on a layover in Atlanta?
Georgia Aquarium, Centennial Olympic Park, and Fox Theatre are the most popular attractions in Atlanta if you're in need of something to do during your layover. Georgia Aquarium, Centennial Olympic Park and Fox Theatre are located about 8.6 mi, 8.4 mi, and 9.3 mi, respectively from Atlanta Hartsfield-Jackson if you are interested in checking them out. Those landing in Atlanta looking to spend some time exploring during their layover can rent a car for about $49 per day.
What are some popular points of interest to see during a layover in Bogotá?
Bogotá travelers tend to visit Museo del Oro, Museo Botero, and Plaza de Bolívar more than any other notable places. Museo del Oro, Museo Botero, and Plaza de Bolívar are located about 8.6 mi, 8.9 mi, and 8.7 mi, respectively from Bogotá El Dorado. Those landing in Bogotá looking to spend some time exploring during their layover can rent a car for about $57 per day.
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 Houston 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, May is the cheapest month in which you can book a flight from Washington, D.C. to Buenos Aires (average of $677). Flying from Washington, D.C. to Buenos Aires in December is currently the most expensive (average of $1,076). 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.

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Top 6 airlines flying from Washington, D.C. to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$265	Average$821	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$274	Average$773	FlexibilityNo cancel fee	On-timeN/A
LATAM Airlines	Cheapest$278	Average$726	FlexibilityNo cancel fee	On-time81%
Copa Airlines	Cheapest$346	Average$770	FlexibilityNo cancel fee	On-time70%
Avianca	Cheapest$536	Average$855	FlexibilityNo cancel fee	On-time71%
American Airlines	Cheapest$599	Average$802	FlexibilityNo cancel fee	On-time71%

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$310+ Cheap flights from Washington, D.C. (WAS) to Buenos Aires (BUE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from Washington, D.C. to Buenos AiresExplore 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 September 17, 2026.

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 September 17, 2026.

Best flights from Washington, D.C. to Buenos AiresDiscover carefully curated flight deals from Washington, D.C. to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Discover carefully curated flight deals from Washington, D.C. to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Last-minute flights from Washington, D.C. to Buenos AiresDiscover last-minute flight deals from Washington, D.C. to Buenos Aires. Data last updated September 17, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Buenos Aires. Data last updated September 17, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Buenos AiresSearch for one-way flight options from Washington, D.C. to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Search for one-way flight options from Washington, D.C. to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

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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 September.

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.

Cheapflights Insights

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

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

Airfare is typical for this route at the moment.

Washington, D.C. to Buenos Aires flights typically cost between $647 and $906 in November.The cheapest round-trip price found within the last 5 days was $690 on United Airlines (Nov 24-Dec 8).

What’s the top layover airport for flights from Washington, D.C. to Buenos Aires?

Share of 1-stop round-trip flights from Washington, D.C. to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same layover each way.

Panama City (PTY) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. to Buenos Aires on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Buenos Aires?

Average round-trip fare for 1-stop flights from Washington, D.C. to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Panama City (PTY) is the most affordable 1-stop option, with an average round-trip price of $608.

What’s the fastest layover option from Washington, D.C. to Buenos Aires?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Buenos Aires, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 13h 07m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Buenos Aires?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 40m.

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

The best time to book flights from Washington, D.C. to Buenos Aires is 5 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.

Reviews of airlines servicing Buenos Aires

Peruse reviews from past customers who have flown with Delta,Copa Airlines, andLATAM Airlines from Washington, D.C. to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Washington, D.C. to Buenos Aires?

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

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

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

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

What are some popular points of interest to see during a layover in Bogotá?

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

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

How can I 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?

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

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

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Other flights to Buenos Aires

Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.

Complete your trip

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Washington, D.C. and Buenos Aires flights

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Top 6 airlines flying 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 September 17, 2026.

Best flights from Washington, D.C. to Buenos Aires
Discover carefully curated flight deals from Washington, D.C. to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.

Last-minute flights from Washington, D.C. to Buenos Aires
Discover last-minute flight deals from Washington, D.C. to Buenos Aires. Data last updated September 17, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Buenos Aires
Search for one-way flight options from Washington, D.C. to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Washington, D.C. to Buenos Aires flights typically cost between $647 and $906 in November.
The cheapest round-trip price found within the last 5 days was $690 on United Airlines (Nov 24-Dec 8).