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$251+ Cheap flights from Dulles Intl (IAD) to Argentina

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — EZE
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to Argentina

Cheapest flights from Dulles Intl to Argentina
Explore the most affordable flight options available from Dulles Intl to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Ticket deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Sun 4/264:50 pm
EZE
-
IAD
1 stop22h 25m
Avianca
Deal found 3/22$572
This Avianca deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Tue 4/284:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
Deal found 3/22$586
This Avianca deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Thu 4/234:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
Deal found 3/22$587
This Avianca deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:35 pm
IAD
-
EZE
1 stop13h 05m
Avianca
Wed 4/294:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
Deal found 3/17$596
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
IAD
-
EZE
1 stop25h 00m
United Airlines
Mon 6/89:00 pm
EZE
-
IAD
1 stop15h 33m
United Airlines
Deal found 3/19$601
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:11 pm
IAD
-
COR
2 stops28h 40m
United Airlines
Thu 4/233:35 am
COR
-
IAD
2 stops32h 58m
United Airlines
Deal found 3/19$603
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:32 am
IAD
-
EZE
2 stops23h 33m
American Airlines
Tue 5/2610:35 pm
EZE
-
IAD
2 stops21h 58m
American Airlines
Deal found 3/18$604
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/83:17 pm
IAD
-
EZE
2 stops18h 48m
American Airlines
Mon 4/1310:20 pm
EZE
-
IAD
2 stops21h 21m
American Airlines
Deal found 3/18$605
This oojo deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:35 pm
IAD
-
EZE
1 stop13h 05m
Avianca
Thu 5/74:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
Deal found 3/21$607
This Avianca deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/263:35 pm
IAD
-
AEP
1 stop13h 05m
Avianca
Mon 5/187:00 am
AEP
-
IAD
2 stops20h 45m
Avianca
Deal found 3/20$608
This Gotogate deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:35 pm
IAD
-
EZE
2 stops21h 05m
Avianca
Wed 4/157:10 am
EZE
-
IAD
1 stop32h 05m
Avianca
Deal found 3/21$608
This Gotogate deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:10 am
IAD
-
AEP
2 stops24h 30m
Avianca
Wed 5/67:00 am
AEP
-
IAD
1 stop23h 20m
Avianca
Deal found 3/18$619

Find flight deals from Dulles Intl to Argentina

Keep the following information in mind while searching for Dulles Intl to Argentina flight deals. Data was last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$572
(Ticket)

One-way from

$251
(Avianca)

Popular in

December

Cheapest in

August

Average price

$815
Provider with most accurate pricing for Washington, D.C. (WAS)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Buenos Aires (BUE) flights.
Search Deals
From Washington, D.C. Dulles Intl to Argentina
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Argentina
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Argentina that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Argentina 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

Mon 5/18

6:00 am-8:00 am

1 stop25h 00m

Buenos Aires Ministro Pistarini

Wed 6/3

9:00 pm-6:50 pm

1 stop22h 50m

$601

Washington, D.C.Cordoba

IAD - COR

IADCOR

Washington, D.C. Dulles Intl

Mon 4/20

10:11 pm-3:51 am

2 stops28h 40m

Cordoba Pajas Blancas

Fri 4/24

5:51 am-11:33 am

2 stops30h 42m

$603

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 9/4

9:35 am-4:20 am

1 stop17h 45m

Buenos Aires Ministro Pistarini

Fri 9/11

9:02 am-4:20 am

1 stop20h 18m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 5/19

8:30 am-8:00 am

1 stop22h 30m

Buenos Aires Ministro Pistarini

Tue 6/2

9:00 pm-10:43 pm

1 stop26h 43m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 5/3

8:30 am-8:00 am

1 stop22h 30m

Buenos Aires Ministro Pistarini

Mon 5/11

9:00 pm-10:49 pm

1 stop26h 49m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 8/24

3:02 pm-8:00 am

1 stop15h 58m

Buenos Aires Ministro Pistarini

Wed 9/2

9:00 pm-10:36 pm

1 stop26h 36m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 8/26

12:50 pm-8:00 am

1 stop18h 10m

Buenos Aires Ministro Pistarini

Wed 9/2

9:00 pm-10:36 pm

1 stop26h 36m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 9/3

8:33 am-8:00 am

1 stop22h 27m

Buenos Aires Ministro Pistarini

Thu 9/17

9:00 pm-6:57 pm

1 stop22h 57m

$637

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 9/2

6:30 am-8:00 am

1 stop24h 30m

Buenos Aires Ministro Pistarini

Thu 9/17

9:00 pm-6:57 pm

1 stop22h 57m

$637

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 4/12

5:35 pm-5:40 am

2 stops35h 05m

Buenos Aires Jorge Newbery

Fri 4/24

7:00 am-5:20 am

1 stop23h 20m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 54 resultsSorted by cheapest first
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6

Best time to book a flight from Dulles Intl to Argentina

Have a flexible travel schedule? Discover the best time to fly to Argentina from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Argentina

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Argentina?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Argentina (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Argentina in December is currently the most expensive (average of $646). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Argentina

Get insights into the airlines that provide service to Argentina. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Argentina. Reviews last updated March 22, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Argentina, such as Delta,Copa Airlines, andLATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,315 reviews
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.5
Good
1,575 reviews
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.4
Good
1,916 reviews
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,459 reviews
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Avianca
6.5
Okay
2,505 reviews
Delta
7.9
Good
8,315 reviews

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Argentina. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Argentina?

    Departing from Washington, D.C. Dulles Intl Airport to Argentina will take you 23h 01m. The distance from Washington, D.C. Dulles Intl Airport to Argentina is about 4926 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Argentina one-way?

    $258 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on Delta and Copa Airlines, with prices starting from $260 and $266, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Argentina?

    Most travelers choose Washington, D.C. Dulles Intl - Buenos Aires Ministro Pistarini, Washington, D.C. Dulles Intl - Buenos Aires Jorge Newbery or Washington, D.C. Dulles Intl - Cordoba Pajas Blancas when deciding on the best route from Washington, D.C. Dulles Intl Airport to Argentina.

  • Can I find deals for flights from Dulles Intl to Argentina that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Argentina flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Argentina?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Argentina.

  • Can I find deals for business class flights from Dulles Intl to Argentina?

    Yes. Cheapflights offers flight deals from Dulles Intl to Argentina by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Argentina?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Argentina (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Argentina in December is currently the most expensive (average of $646). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Dulles Intl to Argentina

Discover the top 5 airlines that operate flights from Dulles Intl to Argentina. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$274Average$880FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$280Average$983FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$355Average$1,069FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$620Average$639FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$635Average$702FlexibilityNo cancel feeOn-time81%

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