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

For as low as $621, United Airlines can have you in Washington, D.C. from Buenos Aires in 15h 23m. There are 5235 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 $315, 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), United Airlines ($367), and Copa Airlines ($367).

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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.

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

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

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

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

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.

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.

$410+ Cheap Flights from Buenos Aires to Washington, D.C.

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

Cheapest

Best

Last-minute

One-way

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 November 4, 2026.

Mon 12/219:10 am -

1 stop20h 09m

Tue 1/51:13 am -

1 stop25h 12m

Deal found 11/3

$607

Wed 11/1811:55 pm -

1 stop24h 49m

Mon 12/72:24 pm -

1 stop14h 56m

Deal found 11/2

$612

Sun 12/1310:30 pm -

1 stop17h 18m

Mon 3/157:16 am -

1 stop23h 14m

Deal found 11/2

$613

Fri 11/2011:55 pm -

1 stop24h 20m

Fri 11/2710:58 am -

1 stop20h 22m

Deal found 11/2

$621

Wed 11/1810:05 pm -

1 stop15h 23m

Wed 12/212:55 pm -

1 stop18h 25m

Deal found 11/3

$621

Wed 11/114:50 pm -

1 stop22h 20m

Tue 11/175:50 am -

1 stop31h 50m

Deal found 11/2

$631

Wed 11/117:05 am -

1 stop23h 25m

Tue 11/175:50 am -

1 stop21h 50m

Deal found 11/2

$631

Wed 11/188:50 pm -

1 stop15h 21m

Wed 12/25:16 pm -

1 stop15h 19m

Deal found 11/3

$640

Mon 12/710:05 pm -

1 stop15h 21m

Thu 12/1012:55 pm -

1 stop18h 25m

Deal found 11/3

$640

Mon 12/2111:20 pm -

2 stops24h 53m

Mon 1/46:00 am -

2 stops23h 10m

Deal found 11/2

$645

Wed 12/29:10 am -

1 stop20h 09m

Wed 12/93:30 pm -

1 stop32h 40m

Deal found 11/4

$649

Mon 12/710:05 pm -

1 stop15h 42m

Thu 12/1012:52 pm -

1 stop16h 28m

Deal found 11/3

$652

Best flights from Buenos Aires to Washington, D.C.
Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.

Wed 11/1810:05 pm -

1 stop15h 23m

Wed 12/212:55 pm -

1 stop18h 25m

Deal found 11/3

$621

Wed 11/188:05 pm -

2 stops17h 24m

Wed 12/26:30 pm -

1 stop13h 10m

Deal found 11/2

$705

Mon 5/34:00 pm -

1 stop30h 44m

Sun 5/162:14 am -

1 stop20h 09m

Deal found 11/1

$759

Mon 3/17:05 am -

1 stop23h 25m

Wed 3/105:50 am -

1 stop21h 50m

Deal found 11/1

$1,013

Sat 11/2810:10 pm -

2 stops31h 05m

Sat 12/52:30 pm -

1 stop13h 10m

Deal found 10/31

$1,173

Mon 12/710:05 pm -

1 stop15h 21m

Thu 12/1012:55 pm -

1 stop18h 25m

Deal found 11/3

$640

Tue 2/238:05 pm -

2 stops17h 42m

Tue 3/27:15 am -

2 stops24h 35m

Deal found 11/2

$705

Mon 12/710:05 pm -

1 stop15h 42m

Thu 12/1012:52 pm -

1 stop16h 28m

Deal found 11/3

$652

Thu 12/244:40 am -

2 stops20h 16m

Sat 1/95:55 pm -

2 stops20h 05m

Deal found 10/30

$1,543

Fri 11/208:05 pm -

2 stops22h 18m

Sat 12/511:30 am -

2 stops21h 25m

Deal found 11/2

$705

Tue 12/2212:05 am -

1 stop28h 49m

Tue 12/291:18 am -

1 stop21h 34m

Deal found 10/30

$842

Mon 3/18:05 pm -

2 stops17h 42m

Wed 3/104:00 pm -

2 stops15h 50m

Deal found 11/2

$705

Tue 12/2211:55 pm -

1 stop24h 18m

Wed 1/1310:54 am -

1 stop18h 26m

Deal found 11/1

$714

Sun 12/209:10 am -

1 stop20h 09m

Wed 12/301:18 am -

1 stop28h 42m

Deal found 11/4

$846

Tue 12/2211:55 pm -

1 stop24h 18m

Thu 1/148:00 am -

1 stop23h 20m

Deal found 11/1

$714

Thu 11/1911:35 pm -

1 stop14h 02m

Thu 1/73:15 pm -

1 stop16h 25m

Deal found 10/30

$714

Tue 12/2211:55 pm -

1 stop24h 46m

Mon 1/1112:50 pm -

1 stop16h 30m

Deal found 11/1

$714

Wed 12/2311:35 pm -

1 stop25h 21m

Wed 1/136:15 pm -

1 stop14h 40m

Deal found 11/1

$727

Sun 12/2011:55 pm -

1 stop23h 04m

Mon 1/44:30 pm -

1 stop14h 50m

Deal found 11/2

$743

Wed 11/187:05 am -

1 stop23h 25m

Wed 12/22:30 pm -

1 stop13h 10m

Deal found 11/2

$1,232

Wed 12/2310:05 pm -

1 stop24h 54m

Mon 1/114:32 pm -

1 stop14h 48m

Deal found 11/1

$743

Sun 1/318:40 am -

3 stops32h 15m

Thu 2/49:55 am -

2 stops28h 05m

Deal found 11/2

$1,362

Wed 1/207:05 am -

1 stop23h 25m

Thu 2/42:30 pm -

1 stop13h 10m

Deal found 11/1

$1,259

Sun 12/2011:35 pm -

1 stop19h 05m

Thu 12/3110:15 am -

2 stops18h 05m

Deal found 11/2

$880

Wed 12/2310:05 pm -

1 stop24h 54m

Thu 1/148:00 am -

1 stop23h 20m

Deal found 11/1

$743

Fri 11/2012:55 pm -

2 stops24h 57m

Fri 11/2711:58 am -

2 stops26h 02m

Deal found 10/30

$1,550

Fri 12/2511:35 pm -

1 stop21h 38m

Fri 1/82:45 pm -

2 stops18h 10m

Deal found 10/30

$880

Wed 12/2310:05 pm -

1 stop24h 54m

Fri 1/1512:46 pm -

1 stop18h 34m

Deal found 11/1

$743

Mon 1/257:05 am -

2 stops22h 10m

Mon 2/152:30 pm -

1 stop13h 10m

Deal found 11/1

$1,350

Fri 12/2512:20 pm -

2 stops26h 50m

Fri 1/82:30 pm -

1 stop13h 10m

Deal found 10/30

$1,527

Last-minute flights from Buenos Aires to Washington, D.C.
Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated November 4, 2026 and is based on user searches.

Wed 11/114:50 pm -

1 stop22h 20m

Tue 11/175:50 am -

1 stop31h 50m

Deal found 11/2

$631

Wed 11/117:05 am -

1 stop23h 25m

Tue 11/175:50 am -

1 stop21h 50m

Deal found 11/2

$631

Tue 11/179:30 pm -

1 stop19h 30m

Tue 11/242:58 pm -

1 stop17h 37m

Deal found 11/4

$645

Wed 11/1811:55 pm -

1 stop24h 49m

Mon 12/72:24 pm -

1 stop14h 56m

Deal found 11/2

$612

Wed 11/1810:05 pm -

1 stop15h 23m

Wed 12/212:55 pm -

1 stop18h 25m

Deal found 11/3

$621

Wed 11/188:50 pm -

1 stop15h 21m

Wed 12/25:16 pm -

1 stop15h 19m

Deal found 11/3

$640

Fri 11/2011:55 pm -

1 stop24h 20m

Fri 11/2710:58 am -

1 stop20h 22m

Deal found 11/2

$621

Mon 12/710:05 pm -

1 stop15h 21m

Thu 12/1012:55 pm -

1 stop18h 25m

Deal found 11/3

$640

Sun 12/1310:30 pm -

1 stop17h 18m

Mon 3/157:16 am -

1 stop23h 14m

Deal found 11/2

$613

Tue 12/1510:10 am -

1 stop14h 08m

Thu 1/215:05 pm -

2 stops15h 05m

Deal found 11/4

$644

Mon 12/219:10 am -

1 stop20h 09m

Tue 1/51:13 am -

1 stop25h 12m

Deal found 11/3

$607

Mon 12/2111:20 pm -

2 stops24h 53m

Mon 1/46:00 am -

2 stops23h 10m

Deal found 11/2

$645

One-way flights from Buenos Aires to Washington, D.C.
Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.

Sat 3/138:00 pm -

2 stops34h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$410

Thu 3/1110:50 pm -

2 stops40h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$420

Mon 3/2210:50 pm -

2 stops40h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$422

Thu 4/110:50 pm -

2 stops31h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/3

$424

Wed 12/99:06 pm -

3 stops52h 26m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/3

$428

Wed 12/168:05 pm -

2 stops26h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/1

$431

Wed 11/117:10 pm -

2 stops20h 48m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$437

Thu 11/126:45 am -

3 stops42h 48m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/3

$445

Thu 3/118:45 pm -

3 stops42h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$446

Wed 3/1010:50 pm -

2 stops31h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$446

Thu 12/177:35 pm -

3 stops50h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/2

$448

Thu 11/1210:30 pm -

2 stops27h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/3

$450

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$595 (American Airlines)
One-way from	$410 (Kiwi.com)
Popular in	October
Cheapest in	March
Average price	$786

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 ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Cheapflights Fare Finder

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.

AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl

AEPIAD

Buenos Aires Jorge Newbery

Wed 11/11

6:10 am-11:33 pm

3 stops43h 23m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$470

Buenos AiresWashington, D.C.

AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl

AEPIAD

Buenos Aires Jorge Newbery

Fri 12/4

5:45 am-11:32 pm

2 stops19h 47m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$482

Buenos AiresWashington, D.C.

AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl

AEPIAD

Buenos Aires Jorge Newbery

Sat 4/24

5:45 am-3:55 pm

3 stops35h 10m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$519

Buenos AiresWashington, D.C.

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

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/2

7:35 pm-4:30 am

2 stops34h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$521

Buenos AiresWashington, D.C.

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

EZEDCA

Buenos Aires Ministro Pistarini

Fri 11/13

11:55 pm-10:15 pm

1 stop24h 20m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$572

Buenos AiresWashington, D.C.

AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl

AEPIAD

Buenos Aires Jorge Newbery

Tue 3/16

7:05 am-5:30 am

1 stop23h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$576

Quickest round-trip

Buenos AiresWashington, D.C.

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

EZEIAD

Buenos Aires Ministro Pistarini

Sat 1/30

4:50 pm-4:30 am

1 stop13h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$579

Buenos AiresWashington, D.C.

AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl

AEPIAD

Buenos Aires Jorge Newbery

Wed 11/25

7:05 am-1:35 am

2 stops20h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$580

Buenos AiresWashington, D.C.

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

EZEIAD

Buenos Aires Ministro Pistarini

Tue 11/24

3:40 am-11:33 pm

1 stop21h 53m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$588

Buenos AiresWashington, D.C.

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

EZEIAD

Buenos Aires Ministro Pistarini

Fri 3/19

9:04 am-9:44 pm

1 stop13h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 58 resultsSorted by cheapest first

...

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

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 November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	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 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.

BUE-WAS

AEP-IAD

EZE-DCA

EZE-IAD

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.

BUE-WAS

AEP-IAD

EZE-DCA

EZE-IAD

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 $696). Flying from Buenos Aires to Washington, D.C. in October is currently the most expensive (average of $910). 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 $727 and $931 in May.
The cheapest round-trip price found within the last 5 days was $595 on American Airlines (May 3-May 17).

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

Booking 63 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.

See what other customers who have flown with Delta,Copa Airlines, andUnited 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

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,701 reviews

Delta

7.8

Good

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Copa Airlines

7.6

Good

1,552 reviews

Delta

7.8

Good

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,463 reviews

Delta

7.8

Good

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,228 reviews

Delta

7.8

Good

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Avianca

6.5

Okay

2,552 reviews

Delta

7.8

Good

8,701 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

How long is the flight from Buenos Aires to Washington, D.C.?
For as low as $621, United Airlines can have you in Washington, D.C. from Buenos Aires in 15h 23m. There are 5235 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 $315, 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), United Airlines ($367), and Copa Airlines ($367).
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 $696). Flying from Buenos Aires to Washington, D.C. in October is currently the most expensive (average of $910). 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 5 airlines flying from Buenos Aires to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest$232	Average$695	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$315	Average$943	FlexibilityNo cancel fee	On-timeN/A
Copa Airlines	Cheapest$378	Average$604	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$610	Average$746	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$727	Average$939	FlexibilityNo cancel fee	On-time71%

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$410+ Cheap flights from Buenos Aires (BUE) to Washington, D.C. (WAS)

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 3/13. 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 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 November 4, 2026.

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 November 4, 2026.

Best flights from Buenos Aires to Washington, D.C.Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.

Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.

Last-minute flights from Buenos Aires to Washington, D.C.Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated November 4, 2026 and is based on user searches.

Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated November 4, 2026 and is based on user searches.

One-way flights from Buenos Aires to Washington, D.C.Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.

Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated November 4, 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 Buenos Aires to Washington, D.C. in November.

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.

Cheapflights Insights

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

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 $727 and $931 in May.The cheapest round-trip price found within the last 5 days was $595 on American Airlines (May 3-May 17).

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

Booking 63 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.

See what other customers who have flown with Delta,Copa Airlines, andUnited 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.

Related info for your journey

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

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

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

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

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

How can I 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.?

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

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

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Search flights from Buenos Aires to Washington, D.C. by cabin class

Find flights from Buenos Aires to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Buenos Aires and Washington, D.C. flights

Browse other Buenos Aires and Washington, D.C. flight options. Last updated on November 4, 2026.

Other flights from Buenos Aires

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Top 5 airlines flying from Buenos Aires to Washington, D.C.

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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 November 4, 2026.

Best flights from Buenos Aires to Washington, D.C.
Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.

Last-minute flights from Buenos Aires to Washington, D.C.
Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated November 4, 2026 and is based on user searches.

One-way flights from Buenos Aires to Washington, D.C.
Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.

Buenos Aires to Washington, D.C. flights typically cost between $727 and $931 in May.
The cheapest round-trip price found within the last 5 days was $595 on American Airlines (May 3-May 17).