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Dulles Intl

$446+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$619
(Priceline)

One-way from

$446
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$479
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
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One-way flight from Buenos Aires (BUE) to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 22% potential increase in price ($305 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Priceline deal was found by Cheapflights users on 4/29. 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.
Thu 5/294:45 pmEZE - IAD
1 stop13h 50mAvianca
Thu 7/35:45 amIAD - EZE
2 stops17h 25mAvianca
Deal found 4/29$619
This Priceline deal was found by Cheapflights users on 4/29. 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.
Thu 5/297:00 amAEP - IAD
1 stop23h 35mAvianca
Thu 7/35:45 amIAD - AEP
2 stops22h 55mAvianca
Deal found 4/29$643
This Copa Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 8/122:32 pmEZE - IAD
1 stop14h 48mCopa Airlines
Mon 8/252:25 amIAD - EZE
1 stop18h 43mCopa Airlines
Deal found 4/28$665
This Orbitz deal was found by Cheapflights users on 4/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:00 amAEP - IAD
1 stop23h 35mMultiple Airlines
Fri 8/1512:30 pmIAD - AEP
2 stops25h 10mMultiple Airlines
Deal found 4/27$743
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 5/128:10 pmEZE - IAD
1 stop14h 04mDelta
Tue 5/203:37 pmIAD - EZE
1 stop17h 08mDelta
Deal found 4/28$760
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 5/139:00 pmEZE - IAD
1 stop15h 30mUnited Airlines
Fri 6/68:30 amIAD - EZE
1 stop22h 30mUnited Airlines
Deal found 4/28$769
This LATAM Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 10/133:40 pmAEP - IAD
2 stops21h 10mLATAM Airlines
Sun 10/2612:30 pmIAD - AEP
2 stops26h 30mLATAM Airlines
Deal found 4/29$769
This Priceline deal was found by Cheapflights users on 4/27. 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.
Sun 5/47:30 amEZE - IAD
2 stops28h 53mMultiple Airlines
Thu 5/157:00 amIAD - EZE
1 stop16h 10mMultiple Airlines
Deal found 4/27$770
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:55 amEZE - IAD
2 stops20h 40mLATAM Airlines
Wed 5/2112:25 pmIAD - EZE
2 stops28h 47mLATAM Airlines
Deal found 4/28$793
This Aeromexico deal was found by Cheapflights users on 4/29. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:25 pmEZE - IAD
1 stop16h 45mAeromexico
Sat 10/44:40 pmIAD - EZE
1 stop27h 45mAeromexico
Deal found 4/29$839
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Wed 9/104:35 pmEZE - IAD
2 stops22h 03mAir Canada
Wed 10/12:25 pmIAD - EZE
2 stops23h 05mAir Canada
Deal found 4/29$901
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/36:20 amAEP - IAD
2 stops28h 00mDelta
Fri 5/1612:25 pmIAD - AEP
2 stops29h 55mDelta
Deal found 4/28$1,543

Cheapflights Fare Finder

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 April 29, 2025.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Buenos Aires

Fly to

Dulles Intl

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 5/29

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

Thu 7/3

5:45 am-12:10 am

2 stops17h 25m

$619

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Thu 5/29

7:00 am-5:35 am

1 stop23h 35m

Washington, D.C. Dulles Intl

Thu 7/3

5:45 am-5:40 am

2 stops22h 55m

$643

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 8/12

2:32 pm-4:20 am

1 stop14h 48m

Washington, D.C. Dulles Intl

Mon 8/25

2:25 am-10:08 pm

1 stop18h 43m

$665

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Fri 6/13

11:27 pm-11:45 pm

3 stops25h 18m

Washington, D.C. Dulles Intl

Thu 6/19

1:05 am-12:10 am

2 stops22h 05m

$724

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 5/12

8:10 pm-9:14 am

1 stop14h 04m

Washington, D.C. Dulles Intl

Tue 5/20

3:37 pm-9:45 am

1 stop17h 08m

$760

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 5/13

9:00 pm-2:20 pm

1 stop18h 20m

Washington, D.C. Dulles Intl

Thu 6/5

12:45 pm-8:00 am

1 stop18h 15m

$769

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Tue 5/13

1:30 pm-11:45 am

2 stops23h 15m

Washington, D.C. Dulles Intl

Thu 6/5

7:43 pm-4:00 pm

2 stops19h 17m

$769

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 5/12

3:55 am-11:35 pm

2 stops20h 40m

Washington, D.C. Dulles Intl

Wed 5/21

12:25 pm-6:12 pm

2 stops28h 47m

$793

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Fri 6/13

9:55 pm-11:45 pm

3 stops26h 50m

Washington, D.C. Dulles Intl

Fri 6/20

4:05 am-9:20 am

3 stops28h 15m

$821

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 9/4

11:25 pm-3:10 pm

1 stop16h 45m

Washington, D.C. Dulles Intl

Sat 10/4

4:40 pm-9:25 pm

1 stop27h 45m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 27 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 April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Buenos Aires-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Cheapflights Insights

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

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 $373). 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 April 29, 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 April 29, 2025.
To help decide which airline to fly from Buenos Aires to Washington, D.C., see what other customers have to say about Delta, LATAM Airlines and Copa 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
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
1,767 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
7.5
Good
1,411 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
Aeromexico
7.5
Good
1,698 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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 $619. Other airlines that can offer you cheap pricing are Copa Airlines, from $665, and Delta, from $760. You may be able to fly from Buenos Aires to Washington, D.C. Dulles Intl Airport for 39% 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?

    $447 is the cheapest one-way deal found within the past few days, from GOL. You may also be able to find cheap deals on Avianca and American Airlines, with prices starting from $450 and $452, 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 $373). 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
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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$292Average$798FlexibilityNo cancel feeOn-time71%
DeltaCheapest$713Average$1,064FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$747Average$961FlexibilityNo cancel feeOn-time70%

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