What airlines fly to Buenos Aires?

Delta, Copa Airlines and United 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 35% 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 offers the lowest fares from Washington, D.C. to Buenos Aires?

Flights via Mexico City (MEX) offer the lowest average round-trip price of $564.

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

Atlanta (ATL) has the shortest average layover time for this route: 1h 34m.

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

Panama City (PTY) was the most common stop: 47% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 12h 57m.

How long does it take to fly to Buenos Aires?

On average, it takes 13h 01m 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 12m.

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

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

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 January 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.

$252 Cheap Flights from Washington, D.C. to Buenos Aires in 2026

Q: 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 $702 to $1,084. The lowest price recently found on this route was $589.

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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.

4:45 pm - 7:55 am

BWI

EZE

14h 10m1 stop

2:21 am - 3:17 pm

EZE

BWI

13h 56m1 stop

$589Copa Airlines

Wed, Mar 11 - Tue, Mar 31

8:07 am - 7:20 am

BWI

EZE

21h 13m1 stop

11:55 pm - 4:06 pm

EZE

BWI

18h 11m1 stop

$597Azul

Sun, Feb 1 - Sat, Feb 7

12:50 pm - 7:20 am

IAD

EZE

16h 30m1 stop

11:55 pm - 4:19 pm

EZE

IAD

18h 24m1 stop

$601United Airlines

Sat, Jan 24 - Tue, Feb 3

3:52 pm - 9:20 am

BWI

EZE

15h 28m1 stop

10:05 pm - 11:20 am

EZE

BWI

15h 15m1 stop

$601United Airlines

Wed, Jan 28 - Wed, Feb 4

4:28 pm - 9:20 am

DCA

EZE

14h 52m1 stop

10:05 pm - 11:29 am

EZE

DCA

15h 24m1 stop

$601United Airlines

Sun, Jan 25 - Wed, Feb 4

5:45 am - 5:50 am

IAD

EZE

22h 05m1 stop

4:55 pm - 3:55 pm

EZE

IAD

24h 00m2 stops

$602Avianca

Sun, Mar 1 - Mon, Mar 16

11:34 am - 9:10 am

IAD

EZE

19h 36m2 stops

10:25 pm - 9:17 pm

EZE

IAD

24h 52m1 stop

$605American Airlines

Sat, Jan 24 - Sun, Feb 8

7:22 pm - 9:59 am

BWI

EZE

13h 37m1 stop

8:35 pm - 11:35 am

EZE

BWI

16h 00m2 stops

$605American Airlines

Tue, Mar 10 - Tue, Mar 17

5:45 am - 5:50 am

IAD

EZE

22h 05m1 stop

4:55 pm - 2:15 pm

EZE

IAD

22h 20m1 stop

$611Avianca

Fri, Mar 6 - Mon, Mar 23

5:00 pm - 10:15 am

DCA

EZE

15h 15m1 stop

11:55 pm - 4:59 pm

EZE

DCA

18h 04m1 stop

$627Delta

Sun, Mar 1 - Mon, Mar 16

Avianca flights from Washington, D.C. to Buenos Aires

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

Avianca

Mar 1

IAD5:45 amWashington, D.C. Dulles Intl

22h 05m

1 stop

EZE5:50 amBuenos Aires Ministro Pistarini

Mar 16

EZE4:55 pmBuenos Aires Ministro Pistarini

24h 00m

2 stops

IAD3:55 pmWashington, D.C. Dulles Intl

$602

Avianca

Mar 6

IAD5:45 amWashington, D.C. Dulles Intl

22h 05m

1 stop

EZE5:50 amBuenos Aires Ministro Pistarini

Mar 23

EZE4:55 pmBuenos Aires Ministro Pistarini

22h 20m

1 stop

IAD2:15 pmWashington, D.C. Dulles Intl

$611

Avianca

Mar 1

IAD2:35 pmWashington, D.C. Dulles Intl

23h 15m

1 stop

EZE3:50 pmBuenos Aires Ministro Pistarini

Mar 16

EZE4:55 pmBuenos Aires Ministro Pistarini

24h 00m

2 stops

IAD3:55 pmWashington, D.C. Dulles Intl

$612

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

Feb 4

IAD3:42 pmWashington, D.C. Dulles Intl

15h 18m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

Feb 9

EZE11:55 pmBuenos Aires Ministro Pistarini

13h 49m

1 stop

IAD11:44 amWashington, D.C. Dulles Intl

$635

LATAM Airlines

Jan 11

IAD3:00 pmWashington, D.C. Dulles Intl

14h 20m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

Jan 27

EZE7:43 pmBuenos Aires Ministro Pistarini

18h 00m

2 stops

IAD11:43 amWashington, D.C. Dulles Intl

$637

LATAM Airlines

Jan 23

DCA11:10 amWashington, D.C. Reagan-National

21h 05m

1 stop

EZE10:15 amBuenos Aires Ministro Pistarini

Jan 28

EZE8:55 pmBuenos Aires Ministro Pistarini

23h 34m

1 stop

DCA6:29 pmWashington, D.C. Reagan-National

$640

momondo 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

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 3/11

4:45 pm-7:55 am

1 stop14h 10m

Buenos Aires Ministro Pistarini

Tue 3/31

2:21 am-3:17 pm

1 stop13h 56m

$589

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sun 2/1

8:07 am-7:20 am

1 stop21h 13m

Buenos Aires Ministro Pistarini

Sat 2/7

11:55 pm-4:06 pm

1 stop18h 11m

$597

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 1/24

12:50 pm-7:20 am

1 stop16h 30m

Buenos Aires Ministro Pistarini

Tue 2/3

11:55 pm-4:19 pm

1 stop18h 24m

$601

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 1/28

3:52 pm-9:20 am

1 stop15h 28m

Buenos Aires Ministro Pistarini

Wed 2/4

10:05 pm-11:20 am

1 stop15h 15m

$601

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 1/25

4:28 pm-9:20 am

1 stop14h 52m

Buenos Aires Ministro Pistarini

Wed 2/4

10:05 pm-11:29 am

1 stop15h 24m

$601

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 3/1

5:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Mon 3/16

4:55 pm-3:55 pm

2 stops24h 00m

$602

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 1/24

11:34 am-9:10 am

2 stops19h 36m

Buenos Aires Ministro Pistarini

Sun 2/8

10:25 pm-9:17 pm

1 stop24h 52m

$605

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Tue 3/10

7:22 pm-9:59 am

1 stop13h 37m

Buenos Aires Ministro Pistarini

Tue 3/17

8:35 pm-11:35 am

2 stops16h 00m

$605

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 3/6

5:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Mon 3/23

4:55 pm-2:15 pm

1 stop22h 20m

$611

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 3/1

5:00 pm-10:15 am

1 stop15h 15m

Buenos Aires Ministro Pistarini

Mon 3/16

11:55 pm-4:59 pm

1 stop18h 04m

$627

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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?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Washington, D.C. is in August. Flight prices, which tend to average around $641, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Buenos Aires from Washington, D.C. during September instead. Flights to Buenos Aires in September, while not as cheap as those in August, still average around $647.

How far in advance should I book a flight 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 $851 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 $623 on momondo.

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

You could potentially save up to 19% 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 January 2026, prices for Washington, D.C. to Buenos Aires flights are approximately 20% cheaper 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

Fastest flight time	13h 01m
Direct flights	None

The fastest flight from Washington, D.C. to Buenos Aires takes 13h 01m

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

How far is Washington, D.C. to Buenos Aires by plane?
Buenos Aires is 5214.3 mi away from Washington, D.C.. 13h 01m 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 January 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 20% of the total bookings. Other popular airlines include United Airlines with 20%, Copa Airlines with 18%, and Avianca with 16%.

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
LATAM Airlines	PriceFrom $278	Free Cancellation	Rating 7.5 1,897 reviews	Search LATAM Airlines flights
Delta	PriceFrom $420	Free Cancellation	Rating 7.9 8,025 reviews	Search Delta flights
American Airlines	PriceFrom $599	Free Cancellation	Rating 7.2 11,094 reviews	Search American Airlines flights
Avianca	PriceFrom $600	Free Cancellation	Rating 6.6 2,494 reviews	Search Avianca flights
Copa Airlines	PriceFrom $617	Free Cancellation	Rating 7.6 1,562 reviews	Search Copa Airlines flights
United Airlines	PriceFrom $629	Free Cancellation	Rating 7.4 9,139 reviews	Search United 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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Find better results for your trip to Argentina

Cheap flights from Washington, D.C. to Buenos Aires from $252

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 3/15. 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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Filter for what you want

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Avianca flights from Washington, D.C. to Buenos Aires

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

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

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

momondo Fare Finder

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 to Buenos Aires?

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

You could potentially save up to 19% 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 January 2026, prices for Washington, D.C. to Buenos Aires flights are approximately 20% cheaper when compared to flights at the same time last year.

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

Copa Airlines, United Airlines, and American Airlines are the most popular carriers operating 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?

Panama City (PTY) was the most common stop: 47% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Mexico City (MEX) offer the lowest average round-trip price of $564.

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

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 12h 57m.

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

Atlanta (ATL) has the shortest average layover time for this route: 1h 34m.

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

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

Fastest flight time

Direct flights

How far is Washington, D.C. to Buenos Aires by plane?

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

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

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

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

What is the most popular airline 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?

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

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

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

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

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