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

Panama City (PTY) was the most common stop: 46% of momondo users choosing 1-stop flights on this route connected there.

How long does it take to fly to Buenos Aires?

On average, it takes 12h 47m to fly from Washington, D.C. to Buenos Aires if you fly out of Washington, D.C. (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 Baltimore and into Buenos Aires Ministro Pistarini Airport, then the flight time is around 13h.

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

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

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 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 55m.

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 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 34% 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.

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 October 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.

$271 Cheap Flights from Washington, D.C. to Buenos Aires in 2025/26

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 $675 to $902. The lowest price recently found on this route was $594.

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

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:10 amIAD-EZE

16h 10m1 stop

1:40 am - 2:00 pmEZE-IAD

13h 20m1 stop

$594Avianca

Find Deal

Mon, Oct 20 - Tue, Oct 21

7:00 am - 12:10 amIAD-EZE

16h 10m1 stop

6:50 am - 2:45 amEZE-IAD

20h 55m2 stops

$596Avianca

Find Deal

Mon, Oct 20 - Wed, Oct 22

2:25 am - 12:55 amIAD-EZE

21h 30m1 stop

10:01 am - 3:22 amEZE-IAD

19h 21m1 stop

$621Copa Airlines

Find Deal

Sun, Oct 19 - Sun, Nov 2

2:25 am - 10:08 pmIAD-EZE

18h 43m1 stop

2:32 pm - 4:20 amEZE-IAD

14h 48m1 stop

$628Copa Airlines

Find Deal

Sun, Oct 19 - Wed, Oct 22

10:10 pm - 9:20 amIAD-EZE

33h 10m1 stop

11:55 pm - 10:12 pmEZE-IAD

24h 17m1 stop

$631United Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

5:03 pm - 10:15 amDCA-EZE

15h 12m1 stop

8:55 pm - 9:10 amEZE-DCA

14h 15m1 stop

$639Delta

Find Deal

Fri, Nov 28 - Fri, Dec 5

3:35 pm - 7:20 amIAD-EZE

13h 45m1 stop

8:55 pm - 11:35 amEZE-IAD

16h 40m1 stop

$640Delta

Find Deal

Wed, Nov 19 - Wed, Dec 3

3:23 pm - 8:10 amBWI-EZE

14h 47m1 stop

11:20 pm - 4:48 pmEZE-BWI

19h 28m1 stop

$640American Airlines

Find Deal

Mon, Nov 3 - Mon, Nov 17

3:06 pm - 10:50 amBWI-EZE

18h 44m2 stops

11:20 pm - 4:48 pmEZE-BWI

19h 28m1 stop

$644American Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

10:10 pm - 9:20 amIAD-EZE

33h 10m1 stop

10:05 pm - 11:28 amEZE-IAD

15h 23m1 stop

$648United Airlines

Find Deal

Sat, Nov 22 - Tue, Nov 25

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

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

Avianca

Oct 20

IAD7:00 amWashington, D.C. Dulles Intl

16h 10m

1 stop

EZE12:10 amBuenos Aires Ministro Pistarini

Oct 21

EZE1:40 amBuenos Aires Ministro Pistarini

13h 20m

1 stop

IAD2:00 pmWashington, D.C. Dulles Intl

$594

Find similar

Avianca

Oct 20

IAD7:00 amWashington, D.C. Dulles Intl

16h 10m

1 stop

EZE12:10 amBuenos Aires Ministro Pistarini

Oct 22

EZE6:50 amBuenos Aires Ministro Pistarini

20h 55m

2 stops

IAD2:45 amWashington, D.C. Dulles Intl

$596

Find similar

Avianca

Oct 29

IAD5:30 amWashington, D.C. Dulles Intl

23h 20m

2 stops

EZE5:50 amBuenos Aires Ministro Pistarini

Nov 5

EZE7:35 amBuenos Aires Ministro Pistarini

21h 35m

2 stops

IAD3:10 amWashington, D.C. Dulles Intl

$597

Find similar

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

Oct 19

IAD2:25 amWashington, D.C. Dulles Intl

21h 30m

1 stop

EZE12:55 amBuenos Aires Ministro Pistarini

Nov 2

EZE10:01 amBuenos Aires Ministro Pistarini

19h 21m

1 stop

IAD3:22 amWashington, D.C. Dulles Intl

$621

Find similar

Copa Airlines

Oct 19

IAD2:25 amWashington, D.C. Dulles Intl

18h 43m

1 stop

EZE10:08 pmBuenos Aires Ministro Pistarini

Oct 22

EZE2:32 pmBuenos Aires Ministro Pistarini

14h 48m

1 stop

IAD4:20 amWashington, D.C. Dulles Intl

$628

Find similar

Copa Airlines

Oct 19

BWI4:49 pmBaltimore/Washington

14h 26m

1 stop

EZE8:15 amBuenos Aires Ministro Pistarini

Oct 31

EZE12:08 amBuenos Aires Ministro Pistarini

16h 01m

1 stop

BWI3:09 pmBaltimore/Washington

$633

Find similar

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

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 10/20

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Tue 10/21

1:40 am-2:00 pm

1 stop13h 20m

$594

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 10/20

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Wed 10/22

6:50 am-2:45 am

2 stops20h 55m

$596

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 10/19

2:25 am-12:55 am

1 stop21h 30m

Buenos Aires Ministro Pistarini

Sun 11/2

10:01 am-3:22 am

1 stop19h 21m

$621

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 10/19

2:25 am-10:08 pm

1 stop18h 43m

Buenos Aires Ministro Pistarini

Wed 10/22

2:32 pm-4:20 am

1 stop14h 48m

$628

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/4

10:10 pm-9:20 am

1 stop33h 10m

Buenos Aires Ministro Pistarini

Tue 11/11

11:55 pm-10:12 pm

1 stop24h 17m

$631

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Fri 11/28

5:03 pm-10:15 am

1 stop15h 12m

Buenos Aires Ministro Pistarini

Fri 12/5

8:55 pm-9:10 am

1 stop14h 15m

$639

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 11/19

3:35 pm-7:20 am

1 stop13h 45m

Buenos Aires Ministro Pistarini

Wed 12/3

8:55 pm-11:35 am

1 stop16h 40m

$640

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 11/3

3:23 pm-8:10 am

1 stop14h 47m

Buenos Aires Ministro Pistarini

Mon 11/17

11:20 pm-4:48 pm

1 stop19h 28m

$640

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Fri 10/31

3:06 pm-10:50 am

2 stops18h 44m

Buenos Aires Ministro Pistarini

Mon 11/3

11:20 pm-4:48 pm

1 stop19h 28m

$644

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 11/22

10:10 pm-9:20 am

1 stop33h 10m

Buenos Aires Ministro Pistarini

Tue 11/25

10:05 pm-11:28 am

1 stop15h 23m

$648

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?

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.

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 $878 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 $769 on momondo.

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

As of October 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.. 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 October 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 22% of the total bookings. Other popular airlines include Avianca with 20%, Copa Airlines with 20%, and American Airlines 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 $506	Free Cancellation	Rating 7.5 1,866 reviews	Search LATAM Airlines flights
Delta	PriceFrom $514	Free Cancellation	Rating 7.9 7,980 reviews	Search Delta flights
Avianca	PriceFrom $600	Free Cancellation	Rating 6.6 2,452 reviews	Search Avianca flights
Copa Airlines	PriceFrom $617	Free Cancellation	Rating 7.6 1,551 reviews	Search Copa Airlines flights
United Airlines	PriceFrom $629	Free Cancellation	Rating 7.4 8,982 reviews	Search United Airlines flights
American Airlines	PriceFrom $639	Free Cancellation	Rating 7.2 11,040 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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Cheap flights from Washington, D.C. to Buenos Aires from $271

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 12/10. 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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Avianca flights from Washington, D.C. to Buenos Aires

Our best Avianca 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

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?

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

As of October 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?

American Airlines, Copa Airlines, 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: 46% 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 55m.

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