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

Flights via Bogotá (BOG) offer the lowest average round-trip price of $644.

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

Flights connecting via Panama City (PTY) have the shortest average one-way travel time: 14h 17m.

What airlines fly to Buenos Aires?

Copa Airlines, Avianca and Delta are the top three most popular airlines that fly to Buenos Aires from Washington, D.C. Dulles Intl Airport according to our data. Copa Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 5 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

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

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

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

Panama City (PTY) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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

Panama City (PTY) has the shortest average layover time for this route: 2h 15m.

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

The number of operators available for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires is 5 as of May 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Buenos Aires.

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

The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$287 Cheap Flights from Washington, D.C. Dulles Intl Airport to Buenos Aires in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $810 to $716. The lowest price recently found on this route was $614.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:38 pm - 10:27 pm

IAD

EZE

28h 49m

1 stop

3:48 am - 12:33 am

EZE

IAD

21h 45m

1 stop

$614Copa Airlines

Wed, Jun 24 - Wed, Jul 1

12:39 pm - 9:40 am

IAD

EZE

20h 01m

2 stops

1:10 pm - 12:55 pm

EZE

IAD

24h 45m

2 stops

$620LATAM Airlines

Thu, Jul 2 - Fri, Jul 10

6:19 am - 7:05 am

IAD

EZE

23h 46m

1 stop

10:05 pm - 10:46 pm

EZE

IAD

25h 41m

1 stop

$626American Airlines

Sun, Jun 21 - Sun, Jun 28

6:19 am - 7:05 am

IAD

EZE

23h 46m

1 stop

10:35 pm - 7:33 pm

EZE

IAD

21h 58m

2 stops

$630American Airlines

Fri, Jun 12 - Tue, Jun 16

8:22 pm - 8:15 pm

IAD

EZE

22h 53m

2 stops

11:30 pm - 11:47 pm

EZE

IAD

25h 17m

2 stops

$631American Airlines

Tue, Jul 21 - Sat, Aug 8

4:26 pm - 10:27 pm

IAD

EZE

29h 01m

1 stop

2:49 pm - 4:21 am

EZE

IAD

14h 32m

1 stop

$637Copa Airlines

Wed, Jul 8 - Tue, Jul 14

3:02 pm - 9:45 am

IAD

EZE

17h 43m

1 stop

8:30 pm - 6:19 pm

EZE

IAD

22h 49m

2 stops

$641LATAM Airlines

Thu, Jul 2 - Tue, Jul 7

6:20 am - 8:50 am

IAD

EZE

25h 30m

2 stops

10:35 pm - 6:34 pm

EZE

IAD

20h 59m

2 stops

$644American Airlines

Fri, Jun 12 - Tue, Jun 16

3:35 pm - 5:40 am

IAD

AEP

13h 05m

1 stop

7:00 am - 2:40 am

AEP

IAD

20h 40m

2 stops

$738Avianca

Wed, Oct 7 - Tue, Oct 27

3:35 pm - 5:40 am

IAD

AEP

13h 05m

1 stop

7:00 am - 2:45 am

AEP

IAD

20h 45m

2 stops

$756Avianca

Thu, Aug 20 - Tue, Sep 8

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

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

LATAM Airlines

Jul 2

IAD12:39 pmWashington, D.C. Dulles Intl

20h 01m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Jul 10

EZE1:10 pmBuenos Aires Ministro Pistarini

24h 45m

2 stops

IAD12:55 pmWashington, D.C. Dulles Intl

$620

LATAM Airlines

Jul 2

IAD3:02 pmWashington, D.C. Dulles Intl

17h 43m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jul 7

EZE8:30 pmBuenos Aires Ministro Pistarini

22h 49m

2 stops

IAD6:19 pmWashington, D.C. Dulles Intl

$641

LATAM Airlines

Jul 8

IAD5:46 pmWashington, D.C. Dulles Intl

24h 04m

2 stops

EZE6:50 pmBuenos Aires Ministro Pistarini

Jul 14

EZE1:10 pmBuenos Aires Ministro Pistarini

23h 27m

2 stops

IAD11:37 amWashington, D.C. Dulles Intl

$645

American Airlines flights from Washington, D.C. Dulles Intl Airport to Buenos Aires

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Buenos Aires flight tickets

American Airlines

Jun 21

IAD6:19 amWashington, D.C. Dulles Intl

23h 46m

1 stop

EZE7:05 amBuenos Aires Ministro Pistarini

Jun 28

EZE10:05 pmBuenos Aires Ministro Pistarini

25h 41m

1 stop

IAD10:46 pmWashington, D.C. Dulles Intl

$626

American Airlines

Jun 12

IAD6:19 amWashington, D.C. Dulles Intl

23h 46m

1 stop

EZE7:05 amBuenos Aires Ministro Pistarini

Jun 16

EZE10:35 pmBuenos Aires Ministro Pistarini

21h 58m

2 stops

IAD7:33 pmWashington, D.C. Dulles Intl

$630

American Airlines

Jul 21

IAD8:22 pmWashington, D.C. Dulles Intl

22h 53m

2 stops

EZE8:15 pmBuenos Aires Ministro Pistarini

Aug 8

EZE11:30 pmBuenos Aires Ministro Pistarini

25h 17m

2 stops

IAD11:47 pmWashington, D.C. Dulles Intl

$631

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 6/24

4:38 pm-10:27 pm

1 stop28h 49m

Buenos Aires Ministro Pistarini

Wed 7/1

3:48 am-12:33 am

1 stop21h 45m

$614

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 7/2

12:39 pm-9:40 am

2 stops20h 01m

Buenos Aires Ministro Pistarini

Fri 7/10

1:10 pm-12:55 pm

2 stops24h 45m

$620

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 6/21

6:19 am-7:05 am

1 stop23h 46m

Buenos Aires Ministro Pistarini

Sun 6/28

10:05 pm-10:46 pm

1 stop25h 41m

$626

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 6/12

6:19 am-7:05 am

1 stop23h 46m

Buenos Aires Ministro Pistarini

Tue 6/16

10:35 pm-7:33 pm

2 stops21h 58m

$630

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 7/21

8:22 pm-8:15 pm

2 stops22h 53m

Buenos Aires Ministro Pistarini

Sat 8/8

11:30 pm-11:47 pm

2 stops25h 17m

$631

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 7/8

4:26 pm-10:27 pm

1 stop29h 01m

Buenos Aires Ministro Pistarini

Tue 7/14

2:49 pm-4:21 am

1 stop14h 32m

$637

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 7/2

3:02 pm-9:45 am

1 stop17h 43m

Buenos Aires Ministro Pistarini

Tue 7/7

8:30 pm-6:19 pm

2 stops22h 49m

$641

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 6/12

6:20 am-8:50 am

2 stops25h 30m

Buenos Aires Ministro Pistarini

Tue 6/16

10:35 pm-6:34 pm

2 stops20h 59m

$644

Quickest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 10/7

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Tue 10/27

7:00 am-2:40 am

2 stops20h 40m

$738

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 8/20

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Tue 9/8

7:00 am-2:45 am

2 stops20h 45m

$756

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. Dulles Intl Airport 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

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport is in April. Flight prices, which tend to average around $229, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Buenos Aires from Washington, D.C. Dulles Intl Airport during January instead. Flights to Buenos Aires in January, while not as cheap as those in April, still average around $256.

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

You are more likely to see cheaper flights to Buenos Aires from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $763 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. Dulles Intl Airport for as low as $668 on momondo.

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

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Buenos Aires flight.

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

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Buenos Aires (IAD to BUE) flight deals and tips

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

Fastest flight time	13h 05m
Direct flights	None

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

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

Search flight deals

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

How far is Washington, D.C. Dulles Intl to Buenos Aires by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Buenos Aires is 5223.3 mi. Typically, this will take 13h 05m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires?
Prices for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires?
The number of operators available for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires is 5 as of May 2026.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Buenos Aires?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Buenos Aires is Avianca (40% of total bookings). The next most popular airlines are Copa Airlines (24%), Delta (21%), and United Airlines (10%).

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

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $342	Free Cancellation	Rating 7.9 8,434 reviews	Search Delta flights
Copa Airlines	PriceFrom $355	Free Cancellation	Rating 7.5 1,576 reviews	Search Copa Airlines flights
Avianca	PriceFrom $536	Free Cancellation	Rating 6.5 2,528 reviews	Search Avianca flights
United Airlines	PriceFrom $620	Free Cancellation	Rating 7.4 9,747 reviews	Search United Airlines flights
LATAM Airlines	PriceFrom $635	Free Cancellation	Rating 7.4 1,920 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?

It is quick and easy to find Washington, D.C. to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

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

Flights from Washington, D.C. to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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 not ready to book a flight from Washington, D.C. to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 6/24

Wed 7/1

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Argentina

Nearby airports

Airlines

Cabin classes

Other Argentina destinations

Other flights from Washington, D.C. Dulles Intl Airport

Complete your trip

Feeling lucky

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from Washington, D.C. Dulles Intl Airport to Buenos Aires from $287

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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

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

American Airlines flights from Washington, D.C. Dulles Intl Airport to Buenos Aires

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Buenos Aires flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Buenos Aires

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

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

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

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

What airlines fly to Buenos Aires?

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

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

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

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

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

Cheap Washington, D.C. Dulles Intl Airport to Buenos Aires (IAD to BUE) flight deals and tips

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

Fastest flight time

Direct flights

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport 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.

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Washington, D.C. Dulles Intl Airport

According to popular flight searches on momondo this year

Complete your trip to Buenos Aires

Explore popular destinations other users love

According to popular flight searches on momondo this year