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 70% 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.

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.

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).

What are the most popular airlines that fly from Buenos Aires to Washington, D.C. Dulles Intl Airport?

The most popular airlines flying from Buenos Aires to Washington, D.C. Dulles Intl Airport are Copa Airlines, Avianca and Delta. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Buenos Aires-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buenos Aires-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$419+ Flights from Buenos Aires to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Buenos Aires to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 23, 2025.

Mon 12/2211:55 pmEZE - IAD

1 stop20h 06mLATAM Airlines

Sun 1/44:17 pmIAD - EZE

1 stop13h 03mLATAM Airlines

Deal found 12/21

$713

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Mon 1/124:30 amIAD - EZE

2 stops23h 20mMultiple Airlines

Deal found 12/21

$716

Sun 12/2110:05 pmEZE - IAD

1 stop15h 23mUnited Airlines

Wed 1/146:03 amIAD - EZE

1 stop23h 17mUnited Airlines

Deal found 12/21

$724

Sat 12/279:03 amEZE - IAD

1 stop20h 19mMultiple Airlines

Mon 1/124:30 amIAD - EZE

2 stops23h 20mMultiple Airlines

Deal found 12/21

$739

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Fri 1/95:45 amIAD - EZE

1 stop16h 50mMultiple Airlines

Deal found 12/21

$741

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Wed 1/73:00 amIAD - EZE

2 stops19h 35mMultiple Airlines

Deal found 12/21

$750

Sun 12/289:03 amEZE - IAD

1 stop20h 19mCopa Airlines

Sun 1/113:25 pmIAD - EZE

1 stop14h 32mCopa Airlines

Deal found 12/21

$755

Sat 12/279:03 amEZE - IAD

1 stop20h 19mMultiple Airlines

Sat 1/105:59 pmIAD - EZE

1 stop13h 01mMultiple Airlines

Deal found 12/21

$761

Wed 12/2412:07 amEZE - IAD

1 stop15h 55mMultiple Airlines

Mon 1/124:30 amIAD - EZE

2 stops23h 20mMultiple Airlines

Deal found 12/21

$762

Sat 12/279:03 amEZE - IAD

1 stop20h 19mMultiple Airlines

Fri 1/92:35 pmIAD - EZE

1 stop13h 15mMultiple Airlines

Deal found 12/21

$764

Sat 12/279:03 amEZE - IAD

1 stop20h 19mMultiple Airlines

Wed 1/73:00 amIAD - EZE

2 stops19h 35mMultiple Airlines

Deal found 12/21

$774

Sun 12/287:00 amAEP - IAD

3 stops19h 10mMultiple Airlines

Sun 1/1112:23 pmIAD - AEP

2 stops20h 07mMultiple Airlines

Deal found 12/21

$1,268

Best flights from Buenos Aires to Dulles Intl
Discover carefully curated flight deals from Buenos Aires to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Tue 2/1710:25 pmEZE - IAD

1 stop20h 06mAmerican Airlines

Tue 3/176:00 amIAD - EZE

1 stop25h 30mAmerican Airlines

Deal found 12/22

$650

Tue 3/101:40 amEZE - IAD

1 stop13h 35mAvianca

Wed 3/186:45 amIAD - EZE

1 stop16h 50mAvianca

Deal found 12/22

$652

Mon 4/205:05 pmAEP - IAD

2 stops32h 04mMultiple Airlines

Fri 5/157:00 amIAD - AEP

1 stop21h 40mMultiple Airlines

Deal found 12/21

$749

Sun 4/191:20 pmEZE - IAD

2 stops25h 45mLATAM Airlines

Wed 4/2910:16 amIAD - EZE

2 stops21h 19mLATAM Airlines

Deal found 12/21

$769

Sun 4/191:40 amEZE - IAD

2 stops27h 40mAvianca

Fri 5/154:05 amIAD - EZE

2 stops19h 05mAvianca

Deal found 12/21

$690

Tue 4/147:00 amAEP - IAD

2 stops20h 45mAvianca

Thu 5/73:25 pmIAD - AEP

1 stop13h 15mAvianca

Deal found 12/21

$761

Wed 3/117:00 amAEP - IAD

2 stops20h 40mAvianca

Wed 3/186:45 amIAD - AEP

1 stop21h 55mAvianca

Deal found 12/22

$761

Wed 4/88:40 amAEP - IAD

2 stops30h 59mLATAM Airlines

Sun 4/121:19 pmIAD - AEP

2 stops25h 41mLATAM Airlines

Deal found 12/20

$949

Mon 4/207:00 amAEP - IAD

1 stop32h 00mAvianca

Fri 5/157:00 amIAD - AEP

1 stop21h 40mAvianca

Deal found 12/21

$770

Tue 2/244:55 pmEZE - IAD

1 stop13h 30mAvianca

Sat 3/72:35 pmIAD - EZE

1 stop13h 15mAvianca

Deal found 12/21

$791

Sun 2/84:55 pmEZE - IAD

1 stop13h 30mAvianca

Sun 3/15:45 amIAD - EZE

1 stop22h 05mAvianca

Deal found 12/21

$829

Thu 4/94:45 pmEZE - IAD

1 stop13h 50mAvianca

Sun 4/267:00 amIAD - EZE

1 stop16h 10mAvianca

Deal found 12/22

$829

Tue 2/177:00 amAEP - IAD

2 stops20h 40mAvianca

Tue 3/173:35 pmIAD - AEP

1 stop13h 05mAvianca

Deal found 12/21

$897

Tue 3/107:00 amAEP - IAD

1 stop23h 25mAvianca

Wed 3/186:45 amIAD - AEP

1 stop21h 55mAvianca

Deal found 12/22

$942

Last-minute flights from Buenos Aires to Dulles Intl
Discover last-minute flight deals from Buenos Aires to Dulles Intl. Data last updated December 23, 2025 and is based on user searches.

Mon 12/2211:55 pmEZE - IAD

1 stop20h 06mLATAM Airlines

Sun 1/44:17 pmIAD - EZE

1 stop13h 03mLATAM Airlines

Deal found 12/21

$713

Mon 12/2210:30 pmAEP - IAD

2 stops43h 53mMultiple Airlines

Fri 1/210:57 amIAD - AEP

3 stops38h 43mMultiple Airlines

Deal found 12/22

$1,450

Mon 12/228:50 amAEP - IAD

2 stops29h 23mLATAM Airlines

Fri 1/26:00 amIAD - AEP

2 stops32h 00mLATAM Airlines

Deal found 12/21

$1,472

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Mon 1/124:30 amIAD - EZE

2 stops23h 20mMultiple Airlines

Deal found 12/21

$716

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Fri 1/95:45 amIAD - EZE

1 stop16h 50mMultiple Airlines

Deal found 12/21

$741

Fri 12/269:03 amEZE - IAD

1 stop16h 30mMultiple Airlines

Wed 1/73:00 amIAD - EZE

2 stops19h 35mMultiple Airlines

Deal found 12/21

$750

Sat 12/279:03 amEZE - IAD

1 stop20h 19mMultiple Airlines

Mon 1/124:30 amIAD - EZE

2 stops23h 20mMultiple Airlines

Deal found 12/21

$739

Sun 12/287:00 amAEP - IAD

3 stops19h 10mMultiple Airlines

Sun 1/1112:23 pmIAD - AEP

2 stops20h 07mMultiple Airlines

Deal found 12/21

$1,268

Thu 1/15:45 amAEP - IAD

2 stops23h 28mMultiple Airlines

Sat 2/288:29 amIAD - AEP

2 stops22h 51mMultiple Airlines

Deal found 12/22

$1,179

Tue 1/2710:25 pmEZE - IAD

1 stop24h 52mAmerican Airlines

Wed 2/256:00 amIAD - EZE

1 stop24h 20mAmerican Airlines

Deal found 12/21

$748

Wed 1/284:55 pmEZE - IAD

1 stop22h 20mAvianca

Wed 2/252:35 pmIAD - EZE

1 stop13h 15mAvianca

Deal found 12/21

$709

Thu 1/2911:55 pmEZE - IAD

1 stop20h 26mMultiple Airlines

Fri 2/65:45 amIAD - EZE

1 stop16h 50mMultiple Airlines

Deal found 12/22

$746

One-way flights from Buenos Aires to Dulles Intl
Search for one-way flight options from Buenos Aires to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Mon 2/24:55 pmEZE - IAD

1 stop22h 20mAvianca

Deal found 12/22

$419

Fri 2/67:30 amEZE - IAD

2 stops21h 40mAvianca

Deal found 12/22

$420

Wed 2/45:15 amAEP - IAD

3 stops37h 13mMultiple Airlines

Deal found 12/22

$421

Thu 4/168:10 pmEZE - IAD

1 stop14h 05mDelta

Deal found 12/21

$423

Wed 5/1312:50 pmAEP - IAD

2 stops26h 10mMultiple Airlines

Deal found 12/21

$426

Sat 4/184:45 pmEZE - IAD

1 stop13h 50mAvianca

Deal found 12/21

$427

Tue 3/313:55 amEZE - IAD

2 stops21h 36mLATAM Airlines

Deal found 12/22

$428

Tue 2/311:30 amAEP - IAD

2 stops26h 13mLATAM Airlines

Deal found 12/22

$431

Tue 5/121:40 amEZE - IAD

1 stop13h 20mAvianca

Deal found 12/21

$434

Fri 2/65:15 amAEP - IAD

3 stops54h 40mMultiple Airlines

Deal found 12/22

$438

Sun 12/285:16 amEZE - IAD

1 stop24h 06mCopa Airlines

Deal found 12/21

$440

Mon 5/186:30 pmEZE - IAD

3 stops24h 35mMultiple Airlines

Deal found 12/21

$442

Find flight deals from Buenos Aires to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$642 (Cheapflightsfares)
One-way from	$419 (Flightnetwork)
Popular in	February
Cheapest in	April
Average price	$818

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. 19% potential increase in price ($203 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:31 pm

1 stop20h 06m

Washington, D.C. Dulles Intl

Tue 3/17

6:00 am-8:30 am

1 stop25h 30m

$650

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 3/10

1:40 am-2:15 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Wed 3/18

6:45 am-12:35 am

1 stop16h 50m

$652

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 4/19

1:40 am-4:20 am

2 stops27h 40m

Washington, D.C. Dulles Intl

Fri 5/15

4:05 am-12:10 am

2 stops19h 05m

$690

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Mon 4/20

5:05 pm-12:09 am

2 stops32h 04m

Washington, D.C. Dulles Intl

Fri 5/15

7:00 am-5:40 am

1 stop21h 40m

$749

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Tue 4/14

7:00 am-2:45 am

2 stops20h 45m

Washington, D.C. Dulles Intl

Thu 5/7

3:25 pm-5:40 am

1 stop13h 15m

$761

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Wed 3/11

7:00 am-2:40 am

2 stops20h 40m

Washington, D.C. Dulles Intl

Wed 3/18

6:45 am-5:40 am

1 stop21h 55m

$761

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 4/19

1:20 pm-2:05 pm

2 stops25h 45m

Washington, D.C. Dulles Intl

Wed 4/29

10:16 am-8:35 am

2 stops21h 19m

$769

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Mon 4/20

7:00 am-2:00 pm

1 stop32h 00m

Washington, D.C. Dulles Intl

Fri 5/15

7:00 am-5:40 am

1 stop21h 40m

$770

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/24

4:55 pm-4:25 am

1 stop13h 30m

Washington, D.C. Dulles Intl

Sat 3/7

2:35 pm-5:50 am

1 stop13h 15m

$791

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 2/8

4:55 pm-4:25 am

1 stop13h 30m

Washington, D.C. Dulles Intl

Sun 3/1

5:45 am-5:50 am

1 stop22h 05m

$829

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 36 results

Compare providers for flights from Buenos Aires to Dulles Intl

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 December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buenos Aires-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 time of day to fly from BUE to IAD?

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 evening, which is usually more expensive.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Avianca 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.

Avianca

6.6

Okay

2,492 reviews

Reviews

1 / 20

2.0

Mediocre

Kevin,Dec 2025

SAL - SJO

Horrible experience and I will never use the airline again I also will make sure I post a video to my 400k followers about this experience

Avianca

6.6

Okay

2,492 reviews

Avianca

6.6

Okay

2,492 reviews

Reviews

1 / 20

2.0

Mediocre

Kevin,Dec 2025

SAL - SJO

Horrible experience and I will never use the airline again I also will make sure I post a video to my 400k followers about this experience

Related info for your journey

How long is the flight from Buenos Aires to Washington, D.C. Dulles Intl Airport?
American Airlines and Avianca can get you from Buenos Aires to Washington, D.C. Dulles Intl Airport in just under 13h 35m. Your travel time can differ by up to 6h 31m. 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 70% 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.

See more FAQs

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Buenos Aires to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest$265	Average$684	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$270	Average$1,069	FlexibilityNo cancel fee	On-timeN/A
Copa Airlines	Cheapest$399	Average$871	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$419+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Buenos Aires to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Buenos Aires to Dulles Intl

Cheapest flights from Buenos Aires to Dulles IntlExplore 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 December 23, 2025.

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 December 23, 2025.

Find flight deals from Buenos Aires to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

Cheapflights Insights

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

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 December 23, 2025.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Avianca 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.

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?

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buenos Aires to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Buenos Aires to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 December 23, 2025.