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$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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BUE
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$627
(Copa Airlines)

One-way from

$272
(Copa Airlines)

Popular in

December

Cheapest in

August

Average price

$695
From Maryland to Buenos Aires (BUE)
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One-way flight from Maryland to Buenos Aires (BUE)
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Highest demand for flights based on searches. 17% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:10 pmIAD - EZE
1 stop31h 10mUnited Airlines
Thu 11/610:05 pmEZE - IAD
1 stop15h 23mUnited Airlines
Deal found 9/15$619
This Copa Airlines deal was found by Cheapflights users on 9/15. 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 10/282:25 amIAD - EZE
1 stop21h 35mCopa Airlines
Wed 11/125:16 amEZE - IAD
1 stop24h 06mCopa Airlines
Deal found 9/15$627
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Mon 10/67:35 pmDCA - EZE
2 stops17h 20mLATAM Airlines
Tue 10/216:13 pmEZE - DCA
2 stops20h 32mLATAM Airlines
Deal found 9/13$627
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Wed 10/296:45 amIAD - EZE
1 stop22h 05mAvianca
Mon 11/31:40 amEZE - IAD
1 stop13h 35mAvianca
Deal found 9/13$628
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Wed 10/296:45 amIAD - EZE
1 stop22h 05mAvianca
Tue 11/41:40 amEZE - IAD
2 stops27h 30mAvianca
Deal found 9/14$630
This Mytrip deal was found by Cheapflights users on 9/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:05 amIAD - EZE
2 stops19h 05mAvianca
Mon 10/277:35 amEZE - IAD
2 stops20h 05mAvianca
Deal found 9/12$632
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Mon 12/14:05 pmDCA - EZE
2 stops15h 30mLATAM Airlines
Tue 12/212:15 pmEZE - DCA
2 stops27h 44mLATAM Airlines
Deal found 9/13$632
This Flysmarter deal was found by Cheapflights users on 9/15. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:00 amIAD - EZE
2 stops24h 50mAvianca
Wed 11/51:40 amEZE - IAD
1 stop13h 35mAvianca
Deal found 9/15$634
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:35 pmIAD - EZE
1 stop13h 15mAvianca
Tue 12/94:55 pmEZE - IAD
1 stop13h 30mAvianca
Deal found 9/14$635
This Priceline deal was found by Cheapflights users on 9/13. 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.
Fri 11/72:35 pmIAD - EZE
1 stop13h 15mAvianca
Sun 11/167:35 amEZE - IAD
2 stops20h 05mAvianca
Deal found 9/13$636
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/224:34 pmIAD - EZE
1 stop31h 21mCopa Airlines
Sun 10/52:32 pmEZE - IAD
1 stop14h 48mCopa Airlines
Deal found 9/14$638
This LATAM Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 10/305:52 pmIAD - AEP
2 stops23h 48mLATAM Airlines
Wed 11/125:15 pmAEP - IAD
2 stops20h 19mLATAM Airlines
Deal found 9/13$639

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 September 15, 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 - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 10/28

2:25 am-1:00 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Tue 11/11

3:57 am-11:33 pm

1 stop21h 36m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 12/4

1:13 am-10:31 pm

1 stop19h 18m

Buenos Aires Ministro Pistarini

Tue 12/9

2:32 pm-3:22 am

1 stop14h 50m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 10/11

2:25 am-12:55 am

1 stop21h 30m

Buenos Aires Ministro Pistarini

Sun 10/19

10:07 am-4:20 am

1 stop19h 13m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 10/28

2:25 am-1:00 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Tue 11/4

10:01 am-11:33 pm

1 stop15h 32m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/4

6:00 am-7:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Tue 11/11

10:05 pm-11:28 am

1 stop15h 23m

$639

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 11/19

7:01 am-7:20 am

1 stop22h 19m

Buenos Aires Ministro Pistarini

Tue 12/2

10:25 pm-11:39 am

1 stop15h 14m

$639

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 10/29

4:03 pm-4:00 pm

2 stops22h 57m

Buenos Aires Jorge Newbery

Wed 11/5

5:15 pm-1:45 pm

2 stops22h 30m

$639

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 10/30

7:59 pm-10:15 am

1 stop13h 16m

Buenos Aires Ministro Pistarini

Thu 11/6

10:25 pm-11:57 am

1 stop15h 32m

$639

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Sat 12/13

2:55 pm-11:40 am

2 stops18h 45m

Buenos Aires Jorge Newbery

Mon 12/29

6:20 pm-12:59 pm

2 stops20h 39m

$639

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Fri 1/9

3:52 pm-9:20 am

1 stop15h 28m

Buenos Aires Ministro Pistarini

Mon 3/9

10:55 pm-4:25 pm

1 stop18h 30m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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, April is the cheapest month in which you can book a flight from Maryland to Buenos Aires (average of $795). Flying from Maryland to Buenos Aires in December is currently the most expensive (average of $1,260). 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 September 15, 2025.

When flying from Maryland to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 15h 28m. Copa Airlines provides one of the quickest options available for as low as $639. There are 5239 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, April is the cheapest month in which you can book a flight from Maryland to Buenos Aires (average of $795). Flying from Maryland to Buenos Aires in December is currently the most expensive (average of $1,260). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$629Average$769FlexibilityNo cancel feeOn-time69%
DeltaCheapest$629Average$1,033FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$653Average$1,237FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$688Average$818FlexibilityNo cancel feeOn-time70%

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