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Buenos Aires

$272+ Cheap flights from Maryland to Buenos Aires (BUE)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BUE
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Maryland to Buenos Aires

Cheapest flights from Maryland to Buenos Aires
Explore the most affordable flight options available from Maryland to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Copa Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/33:42 pmBWI - EZE
1 stop14h 17mCopa Airlines
Tue 11/42:15 amEZE - BWI
1 stop13h 54mCopa Airlines
Deal found 10/30$628
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:45 amIAD - AEP
1 stop21h 55mAvianca
Tue 12/97:00 amAEP - IAD
1 stop23h 25mAvianca
Deal found 10/29$637
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Wed 11/55:45 amIAD - EZE
1 stop16h 50mAvianca
Mon 11/241:40 amEZE - IAD
2 stops26h 00mAvianca
Deal found 10/30$637
This LATAM Airlines deal was found by Cheapflights users on 10/30. 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.
Tue 11/2512:11 pmIAD - AEP
2 stops24h 29mLATAM Airlines
Tue 12/23:40 pmAEP - IAD
2 stops21h 59mLATAM Airlines
Deal found 10/30$640
This Delta deal was found by Cheapflights users on 10/28. 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.
Tue 11/183:35 pmIAD - EZE
1 stop15h 25mDelta
Wed 12/38:55 pmEZE - IAD
1 stop19h 45mDelta
Deal found 10/28$640
This KAYAK deal was found by Cheapflights users on 10/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:10 amDCA - AEP
2 stops21h 20mLATAM Airlines
Sun 12/75:15 pmAEP - DCA
2 stops22h 44mLATAM Airlines
Deal found 10/28$640
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/312:35 pmBWI - EZE
1 stop18h 45mUnited Airlines
Sun 11/1611:55 pmEZE - BWI
1 stop18h 07mUnited Airlines
Deal found 10/30$640
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/182:51 pmDCA - EZE
1 stop16h 29mUnited Airlines
Sat 11/2211:55 pmEZE - DCA
1 stop22h 50mUnited Airlines
Deal found 10/29$640
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Wed 11/195:45 amIAD - AEP
1 stop21h 55mAvianca
Tue 11/257:00 amAEP - IAD
2 stops20h 40mAvianca
Deal found 10/30$642
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:12 amIAD - EZE
2 stops22h 58mAmerican Airlines
Tue 11/410:25 pmEZE - IAD
1 stop19h 46mAmerican Airlines
Deal found 10/29$644
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/311:09 amBWI - EZE
2 stops21h 01mAmerican Airlines
Wed 11/58:45 pmEZE - BWI
2 stops18h 18mAmerican Airlines
Deal found 10/30$644
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 11/25:24 pmDCA - EZE
2 stops14h 46mAmerican Airlines
Fri 11/148:45 pmEZE - DCA
1 stop22h 11mAmerican Airlines
Deal found 10/30$644

Cheap flight deals from Maryland to Buenos Aires

Keep the following information in mind while searching for Maryland to Buenos Aires flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$637
(FlightHub)

One-way from

$272
(Copa Airlines)

Popular in

December

Cheapest in

August

Average price

$768
Provider with most accurate pricing for Washington, D.C. (WAS)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Buenos Aires (BUE) flights.
Search Deals
From Maryland to Buenos Aires (BUE)
Search Deals
One-way flight from Maryland to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maryland to Buenos Aires 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 October 30, 2025.
Use the filters below to find and compare flights from Maryland to Buenos Aires that are best for you.

Fly from

Maryland

Fly to

Buenos Aires

Route

Depart

Return

Price

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 11/16

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Sun 11/23

7:00 am-4:25 am

1 stop23h 25m

$637

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 12/5

10:08 am-9:00 am

1 stop20h 52m

Buenos Aires Ministro Pistarini

Fri 12/19

11:55 pm-6:01 pm

1 stop20h 06m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 11/16

12:55 pm-7:20 am

1 stop16h 25m

Buenos Aires Ministro Pistarini

Fri 11/21

11:55 pm-10:04 pm

1 stop24h 09m

$640

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Tue 4/21

2:55 pm-2:40 pm

2 stops22h 45m

Buenos Aires Jorge Newbery

Wed 4/29

8:10 pm-2:05 pm

2 stops18h 55m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/18

12:55 pm-9:20 am

1 stop18h 25m

Buenos Aires Ministro Pistarini

Sat 11/22

11:55 pm-4:16 pm

1 stop18h 21m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 12/1

12:11 pm-10:15 am

1 stop20h 04m

Buenos Aires Ministro Pistarini

Tue 12/9

10:25 pm-11:39 am

1 stop15h 14m

$640

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 4/22

6:25 pm-4:05 pm

2 stops20h 40m

Buenos Aires Jorge Newbery

Tue 4/28

8:10 pm-2:05 pm

2 stops18h 55m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 4/14

1:00 pm-5:55 am

2 stops15h 55m

Buenos Aires Ministro Pistarini

Tue 4/28

7:45 am-12:09 am

2 stops17h 24m

$640

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Sun 4/19

2:55 pm-2:40 pm

2 stops22h 45m

Buenos Aires Jorge Newbery

Sun 4/26

5:00 pm-2:05 pm

2 stops22h 05m

$640

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 11/19

6:00 am-7:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Thu 12/4

10:05 pm-4:15 pm

1 stop20h 10m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
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Best time to book a flight from Maryland to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Maryland 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 Maryland to Buenos Aires

What is the cheapest month to book a flight from Maryland to Buenos Aires?

Currently, March is the cheapest month in which you can book a flight from Maryland to Buenos Aires (average of $278). Flying from Maryland to Buenos Aires in February is currently the most expensive (average of $853). 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 MD to BUE?

Find hourly flight availability from Maryland to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Maryland to Buenos Aires at noon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Maryland to Buenos Aires?

Related info for your journey

Find useful and relevant information for your journey from Maryland to Buenos Aires. 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 Maryland to Buenos Aires?

    A quick flight from Maryland to Buenos Aires can take about 16h 25m. Avianca provides one of the quickest options available for as low as $640. There are 5235 mi between Maryland and Buenos Aires. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Maryland to Buenos Aires one-way?

    $272 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 LATAM Airlines and United Airlines, with prices starting from $275 and $275, respectively.

  • What are the most popular routes from Maryland to Buenos Aires?

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maryland to Buenos Aires 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 Maryland to Buenos Aires?

    Currently, March is the cheapest month in which you can book a flight from Maryland to Buenos Aires (average of $278). Flying from Maryland to Buenos Aires in February is currently the most expensive (average of $853). 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

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Alternative routes for Maryland to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Maryland to Buenos Aires

Discover the top 4 airlines that operate flights from Maryland to Buenos Aires. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$629Average$769FlexibilityNo cancel feeOn-time69%
DeltaCheapest$629Average$1,012FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$653Average$1,188FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$688Average$818FlexibilityNo cancel feeOn-time70%

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