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Dulles Intl

$399+ Cheap flights from Buenos Aires (BUE) to Dulles Intl (IAD)

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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — IAD
mar. 19 — mar. 261
mié. 3/19
mié. 3/26
1 adult, Economy
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Cheap flight deals from Buenos Aires to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated marzo 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$718
(Priceline)

One-way from

$399
(Cheapflightsfares)

Popular in

January

Cheapest in

April

Average price

$970
Provider with most accurate pricing for Buenos Aires (BUE)-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Washington, D.C. Dulles Intl flights.
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From Buenos Aires (BUE) to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Buenos Aires (BUE) to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($278 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Buenos Aires to Dulles Intl

Cheapest flights from Buenos Aires to Dulles Intl
Explore the most affordable flight options available from Buenos Aires to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 14, 2025.

This Priceline deal was found by Cheapflights users on 3/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/14:45 pmEZE - IAD
1 stop13h 50mAvianca
dom. 4/67:00 amIAD - EZE
1 stop16h 10mAvianca
Deal found 3/12$718
This LATAM Airlines deal was found by Cheapflights users on 3/13. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/137:40 amEZE - IAD
2 stops16h 55mLATAM Airlines
jue. 6/512:25 pmIAD - EZE
2 stops28h 47mLATAM Airlines
Deal found 3/13$769
This LATAM Airlines deal was found by Cheapflights users on 3/13. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/243:40 pmAEP - IAD
2 stops20h 43mLATAM Airlines
lun. 5/1912:25 pmIAD - AEP
2 stops21h 05mLATAM Airlines
Deal found 3/13$769
This Priceline deal was found by Cheapflights users on 3/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/14:45 pmEZE - IAD
1 stop13h 50mMultiple Airlines
dom. 4/610:06 amIAD - EZE
2 stops39h 24mMultiple Airlines
Deal found 3/12$778
This Delta deal was found by Cheapflights users on 3/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/138:10 pmEZE - IAD
1 stop14h 00mDelta
vie. 6/65:40 pmIAD - EZE
1 stop15h 05mDelta
Deal found 3/13$783
This Copa Airlines deal was found by Cheapflights users on 3/13. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/132:32 pmEZE - IAD
1 stop14h 48mCopa Airlines
mié. 6/42:21 amIAD - EZE
1 stop18h 47mCopa Airlines
Deal found 3/13$819
This Expedia deal was found by Cheapflights users on 3/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/15:00 pmAEP - IAD
2 stops32h 31mMultiple Airlines
dom. 4/67:00 amIAD - AEP
1 stop21h 40mMultiple Airlines
Deal found 3/12$942
This United Airlines deal was found by Cheapflights users on 3/13. 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.
mar. 10/219:00 pmEZE - IAD
1 stop27h 51mUnited Airlines
mar. 10/2810:06 pmIAD - EZE
1 stop31h 14mUnited Airlines
Deal found 3/13$947
This FlightHub deal was found by Cheapflights users on 3/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/187:00 amAEP - IAD
1 stop23h 35mAvianca
vie. 10/247:00 amIAD - AEP
1 stop21h 40mAvianca
Deal found 3/13$1,007
This Air Canada deal was found by Cheapflights users on 3/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/244:35 pmEZE - IAD
3 stops21h 37mAir Canada
mar. 6/109:45 amIAD - EZE
2 stops27h 45mAir Canada
Deal found 3/13$1,025
This Delta deal was found by Cheapflights users on 3/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/236:20 amAEP - IAD
2 stops18h 50mDelta
jue. 10/303:00 pmIAD - AEP
2 stops19h 00mDelta
Deal found 3/13$1,446

Find flights from Buenos Aires to Dulles Intl within your budget

Customize your flight search to find flights from Buenos Aires to Dulles Intl 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 marzo 14, 2025.

Fly from

Buenos Aires

Fly to

Dulles Intl

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mar. 4/1

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

dom. 4/6

7:00 am-12:10 am

1 stop16h 10m

$718

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mar. 5/13

7:40 am-11:35 pm

2 stops16h 55m

Washington, D.C. Dulles Intl

jue. 6/5

12:25 pm-6:12 pm

2 stops28h 47m

$769

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

jue. 4/24

3:40 pm-11:23 am

2 stops20h 43m

Washington, D.C. Dulles Intl

lun. 5/19

12:25 pm-10:30 am

2 stops21h 05m

$769

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mar. 4/1

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

dom. 4/6

10:06 am-2:30 am

2 stops39h 24m

$778

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mar. 5/13

8:10 pm-9:10 am

1 stop14h 00m

Washington, D.C. Dulles Intl

vie. 6/6

5:40 pm-9:45 am

1 stop15h 05m

$783

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mar. 5/13

2:32 pm-4:20 am

1 stop14h 48m

Washington, D.C. Dulles Intl

mié. 6/4

2:21 am-10:08 pm

1 stop18h 47m

$819

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

mar. 4/1

5:00 pm-12:31 am

2 stops32h 31m

Washington, D.C. Dulles Intl

dom. 4/6

7:00 am-5:40 am

1 stop21h 40m

$942

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

jue. 4/24

4:35 pm-1:12 pm

3 stops21h 37m

Washington, D.C. Dulles Intl

mar. 6/10

9:45 am-2:30 pm

2 stops27h 45m

$1,025

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

lun. 3/31

9:00 pm-2:26 pm

1 stop18h 26m

Washington, D.C. Dulles Intl

lun. 4/7

12:40 pm-8:00 am

1 stop18h 20m

$1,051

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

jue. 6/19

7:00 am-11:45 pm

2 stops17h 45m

Washington, D.C. Dulles Intl

sáb. 7/5

5:05 pm-5:40 am

2 stops35h 35m

$1,333

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 24 results
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Compare providers for flights from Buenos Aires to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buenos Aires to Dulles Intl in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buenos Aires-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buenos Aires-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buenos Aires-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buenos Aires-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buenos Aires-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buenos Aires to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Buenos Aires 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.

Travel insights for flights from Buenos Aires to Dulles Intl

Get recent, data-driven insights about flights from Buenos Aires to Dulles Intl including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Buenos Aires to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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.

What is the cheapest time of day to fly from BUE to IAD?

Find hourly flight availability from Buenos Aires to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 14, 2025.

It’s typically best to fly out from Buenos Aires to Washington, D.C. Dulles Intl Airport in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated marzo 14, 2025.
To help decide which airline to fly from Buenos Aires to Washington, D.C., see what other customers have to say about Delta, Copa Airlines and LATAM Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Copa Airlines
7.6
Good
1,416 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LATAM Airlines
7.5
Good
1,751 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,623 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What are the cheapest airlines flying from Buenos Aires to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Buenos Aires to Washington, D.C. Dulles Intl Airport round-trip from $718. Other airlines that can offer you cheap pricing are LATAM Airlines, from $769, and Delta, from $783. You may be able to fly from Buenos Aires to Washington, D.C. Dulles Intl Airport for 31% less than the average price by searching for these airlines.

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

    $399 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $448 and $466, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buenos Aires to Dulles Intl 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 Buenos Aires to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Buenos Aires to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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

Traveling to a place near Buenos Aires?

Book flights to Buenos Aires if you plan to visit one of these locations
Arlington
Alexandria
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Laurel
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Gettysburg
National Harbor
Oxon Hill

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Top 3 airlines flying from Buenos Aires to Dulles Intl

Discover the top 3 airlines that operate flights from Buenos Aires to Dulles Intl. 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 marzo 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$630Average$831FlexibilityNo cancel feeOn-time71%
DeltaCheapest$713Average$1,110FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$747Average$978FlexibilityNo cancel feeOn-time70%
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