How long is the flight from Buenos Aires to Washington, D.C.?

For as low as $697, Copa Airlines can have you in Washington, D.C. from Buenos Aires in 14h 48m. There are 5235 mi between Buenos Aires and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Cheapflights users have booked flights from Buenos Aires to Washington, D.C. round-trip from $344. Other airlines that can offer you cheap pricing are Avianca, from $434, and Copa Airlines, from $442. Users have found that Delta is 62% cheaper than the other options available to this destination.

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

The cheapest airlines for a one-way flight from Buenos Aires to Washington, D.C. are Avianca ($419), American Airlines ($448), and Delta ($466).

What is the cheapest day to fly from Buenos Aires to Washington, D.C.?

Travelers seeking maximum savings on their Buenos Aires to Washington, D.C. flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 routes from Buenos Aires to Washington, D.C.?

The most popular flight routes from Buenos Aires to Washington, D.C. are Buenos Aires Ministro Pistarini - Washington, D.C. Dulles Intl, Buenos Aires Ministro Pistarini - Washington, D.C. Reagan-National and Buenos Aires Ministro Pistarini - Baltimore/Washington.

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

When booking a flight from Buenos Aires to Washington, D.C., you may want to consider flying on Avianca, Copa Airlines or Delta as they are the most popular for this route.

What is the cheapest day to fly round-trip from Buenos Aires to Washington, D.C.?

Friday flights are generally found to be more expensive for flights from Buenos Aires to Washington, D.C.. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from Buenos Aires to Washington, D.C.?

Find a great deal and save up to 145% by booking at least 41 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Buenos Aires to Washington, D.C. within the next two weeks, with the cheapest ticket starting at $664.

What is the cheapest month to fly from Buenos Aires to Washington, D.C.?

The best pricing can be found in the month of April. Prices to Washington, D.C. from Buenos Aires average $917. You can even find prices in April for less than $917, as users have found deals to Washington, D.C. from as low as $296. The month of January appears to be one of the more expensive times to travel to Washington, D.C. from Buenos Aires. Flying in the targeted month can save you up to 41%.

Can I find deals for flights from Buenos Aires to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Buenos Aires to Washington, D.C.?

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

Can I find deals for business class flights from Buenos Aires to Washington, D.C.?

Yes. Cheapflights offers flight deals from Buenos Aires to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$339+ Cheap Flights from Buenos Aires to Washington, D.C.

Q: How much does it cost to fly round-trip from Buenos Aires to Washington, D.C.?

Airfare is below average for this route at the moment. Buenos Aires to Washington, D.C. flights typically cost between $720 and $988 in October. The cheapest round-trip price found within the last 3 days was $673 on American Airlines (Oct 8-Oct 13).

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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Buenos Aires to Washington, D.C. are usually found in April or September, booked 42 days in advance, depart on a Thursday or Wednesday and return on a Monday

Cheap flight deals from Buenos Aires to Washington, D.C.

Round-trip from	$673 (American Airlines)
One-way from	$339 (Avianca Connect)
Popular in	January
Cheapest in	April
Average price	$767

From Buenos Aires (BUE) to Washington, D.C. (WAS)

Search Deals

One-way flight from Buenos Aires (BUE) to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($164 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

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Find flight deals from Buenos Aires to Washington, D.C.

Cheapest flights from Buenos Aires to Washington, D.C.
Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Mon 9/298:40 pmEZE - DCA

1 stop15h 19mAmerican Airlines

Tue 10/147:06 pmDCA - EZE

1 stop14h 09mAmerican Airlines

Deal found 9/14

$675

Tue 11/41:40 amEZE - IAD

1 stop13h 35mAvianca

Fri 11/145:45 amIAD - EZE

1 stop22h 05mAvianca

Deal found 9/13

$694

Sun 9/283:48 amEZE - IAD

1 stop21h 42mCopa Airlines

Sun 10/122:25 amIAD - EZE

1 stop21h 30mCopa Airlines

Deal found 9/15

$697

Thu 10/3010:25 pmEZE - DCA

1 stop20h 35mDelta

Tue 11/44:03 pmDCA - EZE

1 stop14h 57mDelta

Deal found 9/15

$700

Thu 10/3010:25 pmEZE - IAD

1 stop21h 53mDelta

Tue 11/410:11 amIAD - EZE

2 stops18h 09mDelta

Deal found 9/15

$700

Tue 12/161:40 amEZE - IAD

3 stops24h 30mAvianca

Wed 12/315:45 amIAD - EZE

1 stop22h 05mAvianca

Deal found 9/14

$701

Mon 9/298:10 pmEZE - IAD

1 stop16h 30mDelta

Tue 10/146:00 amIAD - EZE

1 stop26h 45mDelta

Deal found 9/14

$702

Thu 10/210:30 amAEP - IAD

2 stops20h 05mMultiple Airlines

Wed 10/157:00 amIAD - AEP

1 stop21h 40mMultiple Airlines

Deal found 9/15

$702

Thu 10/307:45 amEZE - DCA

2 stops26h 25mLATAM Airlines

Tue 11/112:35 pmDCA - EZE

2 stops28h 20mLATAM Airlines

Deal found 9/14

$709

Thu 10/304:30 pmEZE - IAD

2 stops23h 07mLATAM Airlines

Tue 11/47:05 amIAD - EZE

2 stops21h 15mLATAM Airlines

Deal found 9/15

$709

Sun 10/262:40 amEZE - BWI

2 stops21h 53mMultiple Airlines

Fri 10/315:01 pmBWI - EZE

2 stops21h 49mMultiple Airlines

Deal found 9/13

$711

Thu 10/25:05 pmAEP - DCA

2 stops45h 55mLATAM Airlines

Wed 10/152:40 pmDCA - AEP

2 stops50h 55mLATAM Airlines

Deal found 9/14

$711

Best flights from Buenos Aires to Washington, D.C.
Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Mon 10/272:32 pmEZE - IAD

1 stop14h 48mCopa Airlines

Thu 10/302:25 amIAD - EZE

1 stop21h 35mCopa Airlines

Deal found 9/13

$697

Thu 10/304:05 amEZE - DCA

2 stops19h 00mDelta

Tue 11/44:03 pmDCA - EZE

1 stop14h 57mDelta

Deal found 9/15

$700

Thu 10/3010:55 pmEZE - DCA

1 stop15h 54mUnited Airlines

Tue 11/411:00 amDCA - EZE

1 stop18h 20mUnited Airlines

Deal found 9/14

$700

Thu 10/210:30 amAEP - IAD

2 stops20h 05mMultiple Airlines

Wed 10/157:00 amIAD - AEP

1 stop21h 40mMultiple Airlines

Deal found 9/15

$702

Thu 10/304:30 pmEZE - IAD

2 stops23h 07mLATAM Airlines

Tue 11/47:05 amIAD - EZE

2 stops21h 15mLATAM Airlines

Deal found 9/15

$709

Thu 11/207:00 amAEP - IAD

1 stop23h 25mAvianca

Fri 11/285:45 amIAD - AEP

1 stop21h 55mAvianca

Deal found 9/13

$715

Thu 10/308:40 pmEZE - BWI

1 stop15h 33mAmerican Airlines

Tue 11/113:23 pmBWI - EZE

1 stop14h 47mAmerican Airlines

Deal found 9/14

$729

Sun 9/283:48 amEZE - IAD

1 stop21h 42mCopa Airlines

Sun 10/122:25 amIAD - EZE

1 stop21h 30mCopa Airlines

Deal found 9/15

$697

Thu 10/308:55 pmEZE - DCA

1 stop18h 58mDelta

Tue 11/114:05 pmDCA - EZE

1 stop14h 55mDelta

Deal found 9/14

$700

Thu 10/25:05 pmAEP - DCA

2 stops45h 55mLATAM Airlines

Wed 10/152:40 pmDCA - AEP

2 stops50h 55mLATAM Airlines

Deal found 9/14

$711

Tue 10/72:30 amEZE - BWI

2 stops34h 05mMultiple Airlines

Mon 10/134:49 pmBWI - EZE

1 stop28h 19mMultiple Airlines

Deal found 9/15

$735

Thu 10/308:40 pmEZE - BWI

1 stop15h 33mAmerican Airlines

Tue 11/43:23 pmBWI - EZE

1 stop14h 47mAmerican Airlines

Deal found 9/13

$746

Last-minute flights from Buenos Aires to Washington, D.C.
Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated September 15, 2025 and is based on user searches.

Sun 9/283:48 amEZE - IAD

1 stop21h 42mCopa Airlines

Sun 10/122:25 amIAD - EZE

1 stop21h 30mCopa Airlines

Deal found 9/15

$697

Mon 9/298:40 pmEZE - DCA

1 stop15h 19mAmerican Airlines

Tue 10/147:06 pmDCA - EZE

1 stop14h 09mAmerican Airlines

Deal found 9/14

$675

Mon 9/298:10 pmEZE - IAD

1 stop16h 30mDelta

Tue 10/146:00 amIAD - EZE

1 stop26h 45mDelta

Deal found 9/14

$702

Thu 10/210:30 amAEP - IAD

2 stops20h 05mMultiple Airlines

Wed 10/157:00 amIAD - AEP

1 stop21h 40mMultiple Airlines

Deal found 9/15

$702

Thu 10/25:05 pmAEP - DCA

2 stops45h 55mLATAM Airlines

Wed 10/152:40 pmDCA - AEP

2 stops50h 55mLATAM Airlines

Deal found 9/14

$711

Sun 10/262:40 amEZE - BWI

2 stops21h 53mMultiple Airlines

Fri 10/315:01 pmBWI - EZE

2 stops21h 49mMultiple Airlines

Deal found 9/13

$711

Wed 10/292:15 amEZE - IAD

1 stop13h 50mCopa Airlines

Mon 11/31:13 amIAD - EZE

1 stop21h 40mCopa Airlines

Deal found 9/15

$718

Thu 10/304:05 amEZE - DCA

2 stops19h 00mDelta

Tue 11/44:03 pmDCA - EZE

1 stop14h 57mDelta

Deal found 9/15

$700

Thu 10/308:55 pmEZE - IAD

1 stop21h 02mDelta

Tue 11/43:33 pmIAD - EZE

1 stop15h 27mDelta

Deal found 9/15

$700

Thu 10/307:45 amEZE - DCA

2 stops26h 25mLATAM Airlines

Tue 11/112:35 pmDCA - EZE

2 stops28h 20mLATAM Airlines

Deal found 9/14

$709

Thu 10/304:30 pmEZE - IAD

2 stops23h 07mLATAM Airlines

Tue 11/47:05 amIAD - EZE

2 stops21h 15mLATAM Airlines

Deal found 9/15

$709

Thu 10/308:15 pmEZE - DCA

1 stop15h 11mAmerican Airlines

Tue 11/412:59 pmDCA - EZE

1 stop17h 11mAmerican Airlines

Deal found 9/13

$718

One-way flights from Buenos Aires to Washington, D.C.
Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Sun 10/262:40 amEZE - BWI

2 stops21h 53mMultiple Airlines

Deal found 9/13

$339

Thu 10/210:30 amAEP - IAD

2 stops20h 05mMultiple Airlines

Deal found 9/13

$340

Sun 9/282:30 amEZE - BWI

2 stops22h 07mMultiple Airlines

Deal found 9/15

$365

Thu 9/2510:10 pmAEP - IAD

2 stops40h 50mMultiple Airlines

Deal found 9/13

$368

Sat 11/15:10 pmAEP - BWI

3 stops50h 13mMultiple Airlines

Deal found 9/14

$375

Sat 10/182:30 amEZE - BWI

2 stops34h 05mMultiple Airlines

Deal found 9/14

$382

Tue 9/302:30 amEZE - IAD

2 stops36h 55mMultiple Airlines

Deal found 9/13

$382

Wed 9/242:30 amEZE - IAD

2 stops36h 55mMultiple Airlines

Deal found 9/13

$384

Tue 9/301:40 amEZE - IAD

1 stop13h 20mAvianca

Deal found 9/13

$390

Wed 10/11:40 amEZE - IAD

2 stops17h 25mAvianca

Deal found 9/13

$391

Mon 9/292:30 amEZE - BWI

3 stops45h 03mMultiple Airlines

Deal found 9/15

$394

Wed 10/296:15 amEZE - BWI

3 stops35h 27mMultiple Airlines

Deal found 9/14

$396

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 10/27

2:32 pm-4:20 am

1 stop14h 48m

Washington, D.C. Dulles Intl

Thu 10/30

2:25 am-1:00 am

1 stop21h 35m

$697

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 9/28

3:48 am-12:30 am

1 stop21h 42m

Washington, D.C. Dulles Intl

Sun 10/12

2:25 am-12:55 am

1 stop21h 30m

$697

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 10/30

4:05 am-10:05 pm

2 stops19h 00m

Washington, D.C. Reagan-National

Tue 11/4

4:03 pm-9:00 am

1 stop14h 57m

$700

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 10/30

10:55 pm-1:49 pm

1 stop15h 54m

Washington, D.C. Reagan-National

Tue 11/4

11:00 am-7:20 am

1 stop18h 20m

$700

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 10/30

8:55 pm-2:53 pm

1 stop18h 58m

Washington, D.C. Reagan-National

Tue 11/11

4:05 pm-9:00 am

1 stop14h 55m

$700

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 12/17

11:55 pm-11:39 am

1 stop13h 44m

Washington, D.C. Reagan-National

Wed 12/31

10:17 am-6:05 am

2 stops17h 48m

$700

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 10/30

8:55 pm-2:37 pm

1 stop18h 42m

Washington, D.C. Dulles Intl

Tue 11/4

12:09 pm-10:15 am

1 stop20h 06m

$700

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 9/29

8:10 pm-9:09 am

1 stop13h 59m

Washington, D.C. Dulles Intl

Mon 10/13

6:00 am-9:45 am

1 stop26h 45m

$700

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Thu 10/2

10:30 am-5:35 am

2 stops20h 05m

Washington, D.C. Dulles Intl

Wed 10/15

7:00 am-5:40 am

1 stop21h 40m

$702

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Thu 10/30

4:30 pm-2:37 pm

2 stops23h 07m

Washington, D.C. Dulles Intl

Tue 11/4

7:05 am-6:20 am

2 stops21h 15m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results

...

Best time to book a flight from Buenos Aires to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

How far ahead should I book a flight from Buenos Aires to Washington, D.C.?

Booking 40 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buenos Aires to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $292). Flying from Buenos Aires to Washington, D.C. in April is currently the most expensive (average of $337). 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 WAS?

One of the essential ways to save on airfare from Buenos Aires to Washington, D.C. is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

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

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Buenos Aires to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,954 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Copa Airlines

7.6

Good

1,531 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

LATAM Airlines

7.5

Good

1,847 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Avianca

6.7

Okay

2,435 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

How long is the flight from Buenos Aires to Washington, D.C.?
For as low as $697, Copa Airlines can have you in Washington, D.C. from Buenos Aires in 14h 48m. There are 5235 mi between Buenos Aires and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Buenos Aires to Washington, D.C. round-trip?
Cheapflights users have booked flights from Buenos Aires to Washington, D.C. round-trip from $344. Other airlines that can offer you cheap pricing are Avianca, from $434, and Copa Airlines, from $442. Users have found that Delta is 62% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Buenos Aires to Washington, D.C. one-way?
The cheapest airlines for a one-way flight from Buenos Aires to Washington, D.C. are Avianca ($419), American Airlines ($448), and Delta ($466).
What are the most popular routes from Buenos Aires to Washington, D.C.?
The most popular flight routes from Buenos Aires to Washington, D.C. are Buenos Aires Ministro Pistarini - Washington, D.C. Dulles Intl, Buenos Aires Ministro Pistarini - Washington, D.C. Reagan-National and Buenos Aires Ministro Pistarini - Baltimore/Washington.
Can I find deals for flights from Buenos Aires to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Buenos Aires to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Buenos Aires to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buenos Aires to Washington, D.C..
Can I find deals for business class flights from Buenos Aires to Washington, D.C.?
Yes. Cheapflights offers flight deals from Buenos Aires to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $292). Flying from Buenos Aires to Washington, D.C. in April is currently the most expensive (average of $337). 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

Woodbridge

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Buenos Aires to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$344	Average$978	FlexibilityNo cancel fee	On-timeN/A
Avianca	Cheapest$434	Average$707	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$442	Average$912	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$673	Average$941	FlexibilityNo cancel fee	On-time71%

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$339+ Cheap flights from Buenos Aires (BUE) to Washington, D.C. (WAS)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Buenos Aires to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Buenos Aires to Washington, D.C. are usually found in April or September, booked 42 days in advance, depart on a Thursday or Wednesday and return on a Monday

Cheap flight deals from Buenos Aires to Washington, D.C.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Buenos Aires to Washington, D.C.

Cheapest flights from Buenos Aires to Washington, D.C.Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Buenos Aires to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

How far ahead should I book a flight from Buenos Aires to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Buenos Aires to Washington, D.C.. Price data was last updated on September 12, 2025.

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

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

Find hourly flight availability from Buenos Aires to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

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

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Buenos Aires to Washington, D.C. have to say. You can also see how each airline compares 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 Washington, D.C.. 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.?

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

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

What are the most popular routes from Buenos Aires to Washington, D.C.?

Can I find deals for flights from Buenos Aires to Washington, D.C. that include hotel bookings?

How can I find direct flights from Buenos Aires to Washington, D.C.?

Can I find deals for business class flights from Buenos Aires to Washington, D.C.?

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

Traveling to a place near Washington, D.C.?

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Alternative routes for Buenos Aires to Washington, D.C.

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Top 4 airlines flying from Buenos Aires to Washington, D.C.

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Cheapest flights from Buenos Aires to Washington, D.C.
Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.