Which layover airport offers the lowest fares from Washington, D.C. to Buenos Aires?

Flights via Miami (MIA) offer the lowest average round-trip price of $684.

What is the cheapest airline that flies from Washington, D.C. to Buenos Aires?

Delta, United Airlines, and Avianca are the most popular carriers operating from Washington, D.C. to Buenos Aires

How long does it take to fly to Buenos Aires?

On average, it takes 13h 08m to fly from Washington, D.C. to Buenos Aires if you fly out of Baltimore (the most popular airport in Washington, D.C.) and into Buenos Aires Ministro Pistarini Airport (the most popular airport in Buenos Aires). If you’re flying out of Washington, D.C. and into Buenos Aires Ministro Pistarini Airport, then the flight time is around 13h 59m.

What airlines fly to Buenos Aires?

Delta, Copa Airlines and LATAM Airlines are the top three most popular airlines that fly to Buenos Aires from Washington, D.C. according to our data. Delta is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 6 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Washington, D.C. to Buenos Aires?

Flights connecting via Miami (MIA) have the shortest average one-way travel time: 12h 45m.

Which airport is the most popular layover for flights between Washington, D.C. and Buenos Aires?

Atlanta (ATL) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Washington, D.C. to Buenos Aires?

Bogotá (BOG) has the shortest average layover time for this route: 1h 24m.

When did momondo last update prices for flights from Washington, D.C. to Buenos Aires?

Prices for flights from Washington, D.C. to Buenos Aires are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to Buenos Aires?

There are 6 operators available for flights from Washington, D.C. to Buenos Aires as of November 2026.

How old do you have to be to fly from Washington, D.C. to Buenos Aires?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$305 Cheap Flights from Washington, D.C. to Buenos Aires in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Buenos Aires

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:34 am - 9:20 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

22h 46m1 stop Houston George Bush Intcntl

10:05 pm - 11:26 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

15h 21m1 stop Houston George Bush Intcntl

$610United Airlines

Tue, Nov 24 - Tue, Dec 8

6:00 am - 7:20 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

23h 20m1 stop Houston George Bush Intcntl

11:55 pm - 4:04 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

18h 09m1 stop Houston George Bush Intcntl

$610United Airlines

Sun, Nov 22 - Tue, Dec 1

4:35 am - 3:40 pmIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

33h 05m2 stops San Salvador El Salvador Intl Bogotá El Dorado

7:25 am - 1:10 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

31h 45m1 stop Bogotá El Dorado

$611Avianca

Mon, Mar 1 - Thu, Mar 11

4:25 pm - 3:40 pmIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

21h 15m2 stops San Salvador El Salvador Intl Bogotá El Dorado

7:25 am - 1:35 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

20h 10m2 stops Bogotá El Dorado San Salvador El Salvador Intl

$611Avianca

Mon, Feb 8 - Mon, Feb 22

4:43 pm - 7:35 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

12h 52m1 stop Atlanta Hartsfield-Jackson

8:05 pm - 5:33 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

23h 28m1 stop New York John F Kennedy Intl

$614LATAM Airlines

Tue, Jan 19 - Fri, Jan 29

6:15 pm - 10:55 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 40m1 stop New York John F Kennedy Intl

9:30 pm - 9:35 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

14h 05m1 stop Atlanta Hartsfield-Jackson

$614LATAM Airlines

Wed, Jan 27 - Sun, Feb 7

7:00 am - 8:05 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

23h 05m2 stops Charlotte Douglas Miami

10:10 am - 8:41 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

24h 31m2 stops Miami Charlotte Douglas

$622American Airlines

Wed, Dec 2 - Mon, Dec 21

6:00 am - 10:15 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

26h 15m2 stops Charlotte Douglas Miami

9:50 pm - 9:51 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

25h 01m2 stops Miami Charlotte Douglas

$622American Airlines

Wed, Mar 3 - Wed, Mar 17

4:46 pm - 11:23 pmIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

29h 37m1 stop Panama City Tocumen Intl

10:45 am - 5:12 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

19h 27m1 stop Panama City Tocumen Intl

$636Copa Airlines

Wed, Mar 31 - Sat, Apr 10

2:14 am - 12:38 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

21h 24m1 stop Panama City Tocumen Intl

10:45 am - 12:41 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

14h 56m1 stop Panama City Tocumen Intl

$636Copa Airlines

Wed, Mar 24 - Fri, Apr 9

Cheap last minute flights

Enter your travel dates to find the best prices.

12:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop New York John F Kennedy Intl

11:35 pm - 11:37 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

14h 02m1 stop Atlanta Hartsfield-Jackson

$652LATAM Airlines

Fri, Nov 13 - Mon, Nov 16

6:20 pm - 10:55 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 35m1 stop New York John F Kennedy Intl

11:35 pm - 11:43 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

14h 08m1 stop Atlanta Hartsfield-Jackson

$652Delta

Fri, Nov 13 - Mon, Nov 30

12:50 pm - 9:20 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

18h 30m1 stop Houston George Bush Intcntl

10:05 pm - 11:28 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

15h 23m1 stop Houston George Bush Intcntl

$652United Airlines

Wed, Nov 18 - Sun, Nov 22

2:38 pm - 7:20 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 42m1 stop Houston George Bush Intcntl

10:05 pm - 8:49 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

24h 44m1 stop Houston George Bush Intcntl

$652United Airlines

Wed, Nov 18 - Mon, Nov 23

12:32 pm - 9:40 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

19h 08m1 stop Atlanta Hartsfield-Jackson

11:35 pm - 8:11 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

22h 36m1 stop Atlanta Hartsfield-Jackson

$652Delta

Mon, Nov 16 - Mon, Nov 30

12:31 pm - 9:40 amDCA Washington, D.C. Reagan-National-EZE Buenos Aires Ministro Pistarini

19h 09m1 stop Atlanta Hartsfield-Jackson

9:30 pm - 9:14 amEZE Buenos Aires Ministro Pistarini-DCA Washington, D.C. Reagan-National

13h 44m1 stop Atlanta Hartsfield-Jackson

$652LATAM Airlines

Mon, Nov 16 - Sun, Nov 22

6:00 am - 7:20 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

23h 20m2 stops Charlotte Douglas Miami

10:30 pm - 6:47 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

22h 17m2 stops Dallas/Fort Worth Charlotte Douglas

$656American Airlines

Fri, Nov 13 - Mon, Nov 16

7:00 am - 8:40 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

23h 40m2 stops Charlotte Douglas Miami

11:00 pm - 10:01 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

25h 01m2 stops Miami Charlotte Douglas

$656American Airlines

Sat, Nov 14 - Fri, Nov 20

5:50 am - 12:30 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

16h 40m1 stop Bogotá El Dorado

4:50 pm - 5:15 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

26h 25m2 stops Bogotá El Dorado San Salvador El Salvador Intl

$667Avianca

Sun, Nov 15 - Tue, Nov 24

2:30 pm - 6:05 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

13h 35m1 stop Bogotá El Dorado

1:40 am - 4:30 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

28h 50m1 stop Bogotá El Dorado

$668Avianca

Mon, Nov 16 - Sun, Nov 22

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LATAM Airlines flights from Washington, D.C. to Buenos Aires

Our best LATAM Airlines deals on Washington, D.C. to Buenos Aires flight tickets

LATAM Airlines

Jan 6

IAD6:15 pmWashington, D.C. Dulles Intl

14h 40m

1 stop

EZE10:55 amBuenos Aires Ministro Pistarini

Jan 27

EZE11:35 pmBuenos Aires Ministro Pistarini

14h 28m

1 stop

IAD12:03 pmWashington, D.C. Dulles Intl

$614

LATAM Airlines

Mar 3

DCA5:15 pmWashington, D.C. Reagan-National

15h 40m

1 stop

EZE10:55 amBuenos Aires Ministro Pistarini

Mar 17

EZE9:30 pmBuenos Aires Ministro Pistarini

14h 24m

1 stop

DCA10:54 amWashington, D.C. Reagan-National

$621

LATAM Airlines

Mar 22

DCA1:45 pmWashington, D.C. Reagan-National

19h 05m

1 stop

EZE9:50 amBuenos Aires Ministro Pistarini

Mar 29

EZE7:20 pmBuenos Aires Ministro Pistarini

19h 36m

2 stops

DCA1:56 pmWashington, D.C. Reagan-National

$628

Copa Airlines flights from Washington, D.C. to Buenos Aires

Our best Copa Airlines deals on Washington, D.C. to Buenos Aires flight tickets

Copa Airlines

Mar 24

IAD2:14 amWashington, D.C. Dulles Intl

21h 24m

1 stop

EZE12:38 amBuenos Aires Ministro Pistarini

Apr 9

EZE10:45 amBuenos Aires Ministro Pistarini

14h 56m

1 stop

IAD12:41 amWashington, D.C. Dulles Intl

$636

Copa Airlines

Mar 3

IAD10:57 pmWashington, D.C. Dulles Intl

20h 41m

1 stop

EZE9:38 pmBuenos Aires Ministro Pistarini

Mar 22

EZE4:00 pmBuenos Aires Ministro Pistarini

14h 12m

1 stop

IAD5:12 amWashington, D.C. Dulles Intl

$657

Copa Airlines

Dec 2

IAD3:30 pmWashington, D.C. Dulles Intl

31h 22m

1 stop

EZE12:52 amBuenos Aires Ministro Pistarini

Dec 21

EZE5:05 amBuenos Aires Ministro Pistarini

23h 49m

1 stop

IAD2:54 amWashington, D.C. Dulles Intl

$665

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Tue 11/24

8:34 am-9:20 am

1 stop22h 46m

Buenos Aires Ministro Pistarini

Tue 12/8

10:05 pm-11:26 am

1 stop15h 21m

$610

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Sun 11/22

6:00 am-7:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Tue 12/1

11:55 pm-4:04 pm

1 stop18h 09m

$610

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Mon 3/1

4:35 am-3:40 pm

2 stops33h 05m

Buenos Aires Ministro Pistarini

Thu 3/11

7:25 am-1:10 pm

1 stop31h 45m

$611

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Mon 2/8

4:25 pm-3:40 pm

2 stops21h 15m

Buenos Aires Ministro Pistarini

Mon 2/22

7:25 am-1:35 am

2 stops20h 10m

$611

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Tue 1/19

4:43 pm-7:35 am

1 stop12h 52m

Buenos Aires Ministro Pistarini

Fri 1/29

8:05 pm-5:33 pm

1 stop23h 28m

$614

Quickest round-trip

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Wed 1/27

6:15 pm-10:55 am

1 stop14h 40m

Buenos Aires Ministro Pistarini

Sun 2/7

9:30 pm-9:35 am

1 stop14h 05m

$614

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

7:00 am-8:05 am

2 stops23h 05m

Buenos Aires Ministro Pistarini

Mon 12/21

10:10 am-8:41 am

2 stops24h 31m

$622

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Wed 3/3

6:00 am-10:15 am

2 stops26h 15m

Buenos Aires Ministro Pistarini

Wed 3/17

9:50 pm-9:51 pm

2 stops25h 01m

$622

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Wed 3/31

4:46 pm-11:23 pm

1 stop29h 37m

Buenos Aires Ministro Pistarini

Sat 4/10

10:45 am-5:12 am

1 stop19h 27m

$636

Washington, D.C.Buenos Aires

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

IADEZE

Washington, D.C. Dulles Intl

Wed 3/24

2:14 am-12:38 am

1 stop21h 24m

Buenos Aires Ministro Pistarini

Fri 4/9

10:45 am-12:41 am

1 stop14h 56m

$636

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Buenos Aires?

Prices are currently low for flights on this route.

Typical prices usually range from $707 to $940.
The lowest price recently found on this route was $610.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Washington, D.C. is in May. Flight prices, which tend to average around $683, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from Washington, D.C. during April instead. Flights to Buenos Aires in April, while not as cheap as those in May, still average around $726.

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

You are more likely to see cheaper flights to Buenos Aires from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $817 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Washington, D.C. for as low as $398 on momondo.

Can stopping save me money on Washington, D.C. to Buenos Aires flights?

You could potentially save up to 22% on your flight if you consider stops on a Washington, D.C. to Buenos Aires flight.

How have Washington, D.C. to Buenos Aires flight prices changed over time?

As of November 2026, prices for Washington, D.C. to Buenos Aires flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Buenos Aires (WAS to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Buenos Aires

Best Price Found	$305
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to Buenos Aires from Washington, D.C. in the past 72 hours is $305. The best round-trip flight deal from Washington, D.C. to Buenos Aires found on momondo in the last 72 hours is $610.

The fastest flight from Washington, D.C. to Buenos Aires takes 13h 05m

There are no direct flights from Washington, D.C. to Buenos Aires. There are no popular flight routes from Washington, D.C. to Buenos Aires.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Buenos Aires

How far is Washington, D.C. to Buenos Aires by plane?
Buenos Aires is 5214.3 mi away from Washington, D.C.. 13h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Buenos Aires?
Prices for flights from Washington, D.C. to Buenos Aires are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Buenos Aires?
There are 6 operators available for flights from Washington, D.C. to Buenos Aires as of November 2026.
How old do you have to be to fly from Washington, D.C. to Buenos Aires?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to Buenos Aires?
Based on momondo bookings for flights between Washington, D.C. and Buenos Aires, the leading airline is Delta, making up 21% of the total bookings. Other popular airlines include American Airlines with 20%, Copa Airlines with 17%, and LATAM Airlines with 14%.

Best airlines flying from Washington, D.C. to Buenos Aires

Compare and see reviews for airlines that fly from Washington, D.C. to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $305	Free Cancellation	Rating 7.8 8,712 reviews	Search Delta flights
United Airlines	PriceFrom $328	Free Cancellation	Rating 7.3 10,485 reviews	Search United Airlines flights
LATAM Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 1,970 reviews	Search LATAM Airlines flights
Copa Airlines	PriceFrom $346	Free Cancellation	Rating 7.6 1,554 reviews	Search Copa Airlines flights
Avianca	PriceFrom $536	Free Cancellation	Rating 6.5 2,546 reviews	Search Avianca flights
American Airlines	PriceFrom $599	Free Cancellation	Rating 7.0 12,232 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Buenos Aires?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Buenos Aires. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Buenos Aires with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Buenos Aires right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from Washington, D.C. and alert you when they change.

An easier way to manage your Buenos Aires trip

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Fly into one of these airports located in Buenos Aires

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Cheap flights from Washington, D.C. to Buenos Aires from $305

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Buenos Aires departing on 1/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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LATAM Airlines flights from Washington, D.C. to Buenos Aires

Our best LATAM Airlines deals on Washington, D.C. to Buenos Aires flight tickets

Copa Airlines flights from Washington, D.C. to Buenos Aires

Our best Copa Airlines deals on Washington, D.C. to Buenos Aires flight tickets

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

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Washington, D.C. to Buenos Aires

What is the typical price of a round-trip flight between Washington, D.C. and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

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

Can stopping save me money on Washington, D.C. to Buenos Aires flights?

How have Washington, D.C. to Buenos Aires flight prices changed over time?

What is the cheapest airline that flies from Washington, D.C. to Buenos Aires?

What airlines fly to Buenos Aires?

Which airport is the most popular layover for flights between Washington, D.C. and Buenos Aires?

Which layover airport offers the lowest fares from Washington, D.C. to Buenos Aires?

Which layover airport has the shortest travel time from Washington, D.C. to Buenos Aires?

Which layover airport has the shortest connection time from Washington, D.C. to Buenos Aires?

How long does it take to fly to Buenos Aires?

When to book flights from Washington, D.C. to Buenos Aires

Cheap Washington, D.C. to Buenos Aires (WAS to BUE) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Buenos Aires

Best airlines flying from Washington, D.C. to Buenos Aires

Compare and see reviews for airlines that fly from Washington, D.C. to Buenos Aires with momondo

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires

Fly your favorite airline to Buenos Aires

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

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