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

Panama City (PTY) was the most common stop: 45% of momondo users choosing 1-stop flights on this route connected there.

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 36% 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.

How long does it take to fly to Buenos Aires?

On average, it takes 12h 38m 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 20m.

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 57m.

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

Houston (IAH) has the shortest average layover time for this route: 1h 38m.

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

Flights via New York (JFK) offer the lowest average round-trip price of $600.

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

Copa Airlines, Avianca, and LATAM 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 September 2025.

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.

$272 Cheap Flights from Washington, D.C. to Buenos Aires in 2025/26

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

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One-way

Last minute

Cheap round-trip flights

6:00 am - 6:20 amDCA-EZE

23h 20m1 stop

10:05 pm - 1:49 pmEZE-DCA

17h 44m1 stop

$619United Airlines

Find Deal

jue., oct. 30 - jue., nov. 6

2:25 am - 1:00 amIAD-EZE

21h 35m1 stop

3:57 am - 11:33 pmEZE-IAD

21h 36m1 stop

$627Copa Airlines

Find Deal

mar., oct. 28 - mar., nov. 11

7:35 pm - 1:55 pmDCA-EZE

17h 20m2 stops

6:13 pm - 1:45 pmEZE-DCA

20h 32m2 stops

$627LATAM Airlines

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lun., oct. 6 - mar., oct. 21

6:45 am - 5:50 amIAD-EZE

22h 05m1 stop

4:55 pm - 1:15 pmEZE-IAD

22h 20m1 stop

$628Avianca

Find Deal

mié., oct. 29 - mié., nov. 5

6:45 am - 5:50 amIAD-EZE

22h 05m1 stop

1:40 am - 3:10 amEZE-IAD

27h 30m2 stops

$630Avianca

Find Deal

mié., oct. 29 - mar., nov. 4

4:05 pm - 9:35 amDCA-EZE

15h 30m2 stops

12:15 pm - 1:59 pmEZE-DCA

27h 44m2 stops

$632LATAM Airlines

Find Deal

lun., dic. 1 - mar., dic. 2

12:11 pm - 10:15 amIAD-EZE

20h 04m1 stop

10:25 pm - 7:19 pmEZE-IAD

22h 54m1 stop

$639Delta

Find Deal

mar., nov. 18 - jue., dic. 4

5:00 pm - 10:15 amDCA-EZE

15h 15m1 stop

8:55 pm - 9:10 amEZE-DCA

14h 15m1 stop

$639Delta

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lun., nov. 3 - lun., nov. 17

6:11 am - 8:20 amIAD-EZE

25h 09m1 stop

9:40 pm - 7:21 pmEZE-IAD

23h 41m2 stops

$644American Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 15

5:04 am - 7:00 amBWI-EZE

23h 56m2 stops

11:59 pm - 4:48 pmEZE-BWI

18h 49m1 stop

$644American Airlines

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dom., nov. 2 - mar., nov. 18

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

Oct 6

DCA7:35 pmWashington, D.C. Reagan-National

17h 20m

2 stops

EZE1:55 pmBuenos Aires Ministro Pistarini

Oct 21

EZE6:13 pmBuenos Aires Ministro Pistarini

20h 32m

2 stops

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

$627

Find similar

LATAM Airlines

Dec 1

DCA4:05 pmWashington, D.C. Reagan-National

15h 30m

2 stops

EZE9:35 amBuenos Aires Ministro Pistarini

Dec 2

EZE12:15 pmBuenos Aires Ministro Pistarini

27h 44m

2 stops

DCA1:59 pmWashington, D.C. Reagan-National

$632

Find similar

LATAM Airlines

Oct 1

DCA2:55 pmWashington, D.C. Reagan-National

17h 45m

2 stops

AEP9:40 amBuenos Aires Jorge Newbery

Oct 23

AEP11:45 amBuenos Aires Jorge Newbery

23h 21m

2 stops

DCA10:06 amWashington, D.C. Reagan-National

$639

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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

Avianca

Oct 29

IAD6:45 amWashington, D.C. Dulles Intl

22h 05m

1 stop

EZE5:50 amBuenos Aires Ministro Pistarini

Nov 5

EZE4:55 pmBuenos Aires Ministro Pistarini

22h 20m

1 stop

IAD1:15 pmWashington, D.C. Dulles Intl

$628

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Avianca

Oct 29

IAD6:45 amWashington, D.C. Dulles Intl

22h 05m

1 stop

EZE5:50 amBuenos Aires Ministro Pistarini

Nov 4

EZE1:40 amBuenos Aires Ministro Pistarini

27h 30m

2 stops

IAD3:10 amWashington, D.C. Dulles Intl

$630

Find similar

Avianca

Oct 29

IAD5:30 amWashington, D.C. Dulles Intl

23h 20m

2 stops

EZE5:50 amBuenos Aires Ministro Pistarini

Nov 4

EZE1:40 amBuenos Aires Ministro Pistarini

27h 30m

2 stops

IAD3:10 amWashington, D.C. Dulles Intl

$631

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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

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

jue. 10/30

6:00 am-6:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

jue. 11/6

10:05 pm-1:49 pm

1 stop17h 44m

$619

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

mar. 10/28

2:25 am-1:00 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

mar. 11/11

3:57 am-11:33 pm

1 stop21h 36m

$627

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

lun. 10/6

7:35 pm-1:55 pm

2 stops17h 20m

Buenos Aires Ministro Pistarini

mar. 10/21

6:13 pm-1:45 pm

2 stops20h 32m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

mié. 10/29

6:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

mié. 11/5

4:55 pm-1:15 pm

1 stop22h 20m

$628

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

mié. 10/29

6:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

mar. 11/4

1:40 am-3:10 am

2 stops27h 30m

$630

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

lun. 12/1

4:05 pm-9:35 am

2 stops15h 30m

Buenos Aires Ministro Pistarini

mar. 12/2

12:15 pm-1:59 pm

2 stops27h 44m

$632

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

mar. 11/18

12:11 pm-10:15 am

1 stop20h 04m

Buenos Aires Ministro Pistarini

jue. 12/4

10:25 pm-7:19 pm

1 stop22h 54m

$639

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

lun. 11/3

5:00 pm-10:15 am

1 stop15h 15m

Buenos Aires Ministro Pistarini

lun. 11/17

8:55 pm-9:10 am

1 stop14h 15m

$639

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

sáb. 11/1

6:11 am-8:20 am

1 stop25h 09m

Buenos Aires Ministro Pistarini

sáb. 11/15

9:40 pm-7:21 pm

2 stops23h 41m

$644

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

dom. 11/2

5:04 am-7:00 am

2 stops23h 56m

Buenos Aires Ministro Pistarini

mar. 11/18

11:59 pm-4:48 pm

1 stop18h 49m

$644

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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 $642, 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 $695.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Washington, D.C. is on a Monday. momondo users have found tickets for Monday departures for as low as $1,031. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $1,094.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the morning. Flights from Washington, D.C. to Buenos Aires during this time can be as low as $969. Try not to purchase tickets at noon because they tend to be around $1,107. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $912 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 $813 on momondo.

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

You could potentially save up to 1% 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 September 2025, prices for Washington, D.C. to Buenos Aires flights are approximately 30% 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

Direct flights	None

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.. 12h 28m 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 September 2025.
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 23% of the total bookings. Other popular airlines include Avianca with 21%, American Airlines with 19%, and Copa Airlines with 19%.

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
Avianca	PriceFrom $605	Free Cancellation	Rating 6.7 2,435 reviews	Search Avianca flights
Copa Airlines	PriceFrom $617	Free Cancellation	Rating 7.6 1,531 reviews	Search Copa Airlines flights
United Airlines	PriceFrom $629	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
Delta	PriceFrom $629	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
American Airlines	PriceFrom $639	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
LATAM Airlines	PriceFrom $678	Free Cancellation	Rating 7.5 1,847 reviews	Search LATAM 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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Cheap flights from Washington, D.C. to Buenos Aires from $272

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 12/5. 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

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

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

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See travel insights to Buenos Aires from

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

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?

What is the cheapest day to depart on your flight to Buenos Aires?

What is the cheapest time of day to depart on your flight 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 1% 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 September 2025, prices for Washington, D.C. to Buenos Aires flights are approximately 30% 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, Avianca, and LATAM 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: 45% 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 New York (JFK) offer the lowest average round-trip price of $600.

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 57m.

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

Houston (IAH) has the shortest average layover time for this route: 1h 38m.

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

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