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Dulles Intl

$401+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — IAD
maj 23 — maj 301
lör 5/23
lör 5/30
1 adult, Economy
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Cheap 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 23, 2026.

This Rumbo deal was found by Cheapflights users on 4/22. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/217:10 am
EZE
-
IAD
2 stops20h 35m
Multiple Airlines
fre 6/53:08 pm
IAD
-
EZE
2 stops17h 12m
Multiple Airlines
Deal found 4/22$751
This Rumbo deal was found by Cheapflights users on 4/21. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 6/17:10 am
EZE
-
IAD
1 stop23h 10m
Multiple Airlines
fre 6/127:39 pm
IAD
-
EZE
1 stop13h 06m
Multiple Airlines
Deal found 4/21$763
This FlightHub deal was found by Cheapflights users on 4/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/74:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
tis 5/196:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Deal found 4/21$764
This Justfly.com deal was found by Cheapflights users on 4/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 5/164:50 pm
EZE
-
IAD
1 stop13h 30m
Multiple Airlines
sön 5/242:21 am
IAD
-
EZE
1 stop23h 09m
Multiple Airlines
Deal found 4/21$768
This FlightHub deal was found by Cheapflights users on 4/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 5/134:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
tis 5/196:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Deal found 4/21$769
This American Airlines deal was found by Cheapflights users on 4/23. 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.
tors 5/219:15 am
EZE
-
IAD
2 stops24h 35m
American Airlines
sön 6/149:20 am
IAD
-
EZE
2 stops20h 45m
American Airlines
Deal found 4/23$775
This FlightHub deal was found by Cheapflights users on 4/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 4/224:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
tis 5/56:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Deal found 4/19$777
This Rumbo deal was found by Cheapflights users on 4/20. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 4/274:50 pm
EZE
-
IAD
1 stop13h 30m
Multiple Airlines
tors 5/1412:37 pm
IAD
-
EZE
2 stops19h 43m
Multiple Airlines
Deal found 4/20$782
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/154:50 pm
EZE
-
IAD
1 stop13h 30m
Multiple Airlines
ons 5/275:33 pm
IAD
-
EZE
1 stop15h 12m
Multiple Airlines
Deal found 4/22$785
This FlightHub deal was found by Cheapflights users on 4/23. 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.
ons 5/134:50 pm
EZE
-
IAD
1 stop13h 30m
Avianca
tis 10/136:50 am
IAD
-
EZE
1 stop21h 50m
Avianca
Deal found 4/23$786
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 5/125:45 am
AEP
-
IAD
2 stops24h 35m
Multiple Airlines
ons 10/143:35 pm
IAD
-
AEP
1 stop13h 05m
Multiple Airlines
Deal found 4/21$796
This Gotogate deal was found by Cheapflights users on 4/21. 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.
tors 5/77:00 am
AEP
-
IAD
1 stop32h 15m
Avianca
tis 5/196:50 am
IAD
-
AEP
1 stop21h 50m
Avianca
Deal found 4/21$803

Find 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$751
(Rumbo)

One-way from

$401
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$887
Provider with most accurate pricing for Buenos Aires (BUE)-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Washington, D.C. Dulles Intl flights.
Search Deals
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. 9% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 23, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

tis 6/2

2:49 pm-4:21 am

1 stop14h 32m

Washington, D.C. Dulles Intl

ons 7/8

2:22 am-10:01 pm

1 stop18h 39m

$801

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

tis 5/19

5:25 am-12:33 am

1 stop20h 08m

Washington, D.C. Dulles Intl

sön 5/24

2:21 am-12:50 am

1 stop21h 29m

$801

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

ons 8/5

1:10 pm-4:49 pm

2 stops28h 39m

Washington, D.C. Dulles Intl

tis 8/25

7:50 pm-9:45 am

1 stop12h 55m

$804

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

tors 5/21

8:10 pm-4:36 pm

1 stop21h 26m

Washington, D.C. Dulles Intl

sön 6/14

3:08 pm-9:45 am

1 stop17h 37m

$804

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

fre 8/28

8:10 pm-11:59 am

1 stop16h 49m

Washington, D.C. Dulles Intl

tis 9/8

4:00 pm-9:20 am

2 stops16h 20m

$804

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

tis 8/4

8:10 pm-2:01 pm

1 stop18h 51m

Washington, D.C. Dulles Intl

tors 8/27

5:30 pm-9:20 am

2 stops14h 50m

$804
Quickest round-trip

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

ons 7/29

8:10 pm-9:26 am

1 stop14h 16m

Washington, D.C. Dulles Intl

mån 8/24

7:50 pm-9:45 am

1 stop12h 55m

$813

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

tors 7/23

8:10 pm-6:26 pm

1 stop23h 16m

Washington, D.C. Dulles Intl

mån 8/10

7:50 pm-9:45 am

1 stop12h 55m

$813

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

sön 7/26

8:10 pm-11:37 am

1 stop16h 27m

Washington, D.C. Dulles Intl

ons 8/19

5:30 pm-9:45 am

1 stop15h 15m

$813

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

mån 7/27

8:10 pm-9:26 am

1 stop14h 16m

Washington, D.C. Dulles Intl

fre 8/21

7:50 pm-9:45 am

1 stop12h 55m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 42 resultsSorted by cheapest first
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  • 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.

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, December is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. Dulles Intl Airport (average of $232). Flying from Buenos Aires to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $777). 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.

How much does it cost to fly round-trip from Buenos Aires to Washington, D.C. Dulles Intl Airport?

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 23, 2026.
Get a feel of what it's like to fly with Copa Airlines from Buenos Aires to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.4

Overall

7.5

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
Copa Airlines
7.5
Good
1,580 reviews
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.4

Overall

7.5

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

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.

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

    Copa Airlines, Delta, and Avianca can get you from Buenos Aires to Washington, D.C. Dulles Intl Airport in just under 14h 32m. Your travel time can differ by up to 14h 07m. There are 5235 mi between Buenos Aires and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

  • 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 $252. Other airlines that can offer you cheap pricing are Delta, from $270, and Copa Airlines, from $378. You may be able to fly from Buenos Aires to Washington, D.C. Dulles Intl Airport for 69% 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?

    $355 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on Avianca and Delta, with prices starting from $375 and $455, 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, December is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. Dulles Intl Airport (average of $232). Flying from Buenos Aires to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $777). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Woodbridge
Silver Spring
Herndon
Rockville
Hyattsville
Fredericksburg
Hanover
Laurel
Manassas
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

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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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$252Average$689FlexibilityNo cancel feeOn-time71%
DeltaCheapest$270Average$967FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$378Average$675FlexibilityNo cancel feeOn-time70%

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