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$252+ Cheap flights from Baltimore (BWI) 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
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Baltimore to Buenos Aires

Cheapest flights from Baltimore to Buenos Aires
Explore the most affordable flight options available from Baltimore to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This KAYAK deal was found by Cheapflights users on 12/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:49 pmBWI - EZE
1 stop14h 11mLATAM Airlines
Thu 1/228:55 pmEZE - BWI
1 stop22h 51mLATAM Airlines
Deal found 12/13$680
This LATAM Airlines deal was found by Cheapflights users on 12/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/164:49 pmBWI - EZE
1 stop14h 11mLATAM Airlines
Thu 12/188:55 pmEZE - BWI
1 stop14h 23mLATAM Airlines
Deal found 12/12$730
This KAYAK deal was found by Cheapflights users on 12/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:15 amBWI - EZE
2 stops23h 20mLATAM Airlines
Thu 1/228:55 pmEZE - BWI
1 stop22h 51mLATAM Airlines
Deal found 12/13$734
This Expedia deal was found by Cheapflights users on 12/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:02 amBWI - EZE
1 stop23h 58mLATAM Airlines
Mon 12/2211:55 pmEZE - BWI
1 stop19h 53mLATAM Airlines
Deal found 12/13$750
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:56 pmBWI - EZE
1 stop15h 24mUnited Airlines
Tue 12/2311:55 pmEZE - BWI
1 stop18h 23mUnited Airlines
Deal found 12/13$751
This lastminute.com deal was found by Cheapflights users on 12/12. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:38 pmBWI - EZE
1 stop14h 21mCopa Airlines
Sun 12/282:32 pmEZE - BWI
1 stop25h 38mCopa Airlines
Deal found 12/12$788
This LATAM Airlines deal was found by Cheapflights users on 12/13. 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.
Mon 12/151:52 pmBWI - EZE
1 stop15h 28mLATAM Airlines
Sun 12/218:55 pmEZE - BWI
1 stop14h 23mLATAM Airlines
Deal found 12/13$801
This KAYAK deal was found by Cheapflights users on 12/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:15 amBWI - EZE
2 stops23h 20mLATAM Airlines
Tue 1/208:55 pmEZE - BWI
1 stop14h 28mLATAM Airlines
Deal found 12/12$805
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:00 amBWI - EZE
1 stop23h 20mUnited Airlines
Fri 1/2310:05 pmEZE - BWI
1 stop15h 15mUnited Airlines
Deal found 12/13$815
This SmartFares deal was found by Cheapflights users on 12/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:00 pmBWI - EZE
1 stop15h 20mLATAM Airlines
Wed 1/218:55 pmEZE - BWI
1 stop14h 28mLATAM Airlines
Deal found 12/13$821
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:04 pmBWI - EZE
1 stop35h 16mUnited Airlines
Sat 1/2410:05 pmEZE - BWI
1 stop15h 15mUnited Airlines
Deal found 12/13$824
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:05 amBWI - EZE
1 stop22h 15mLATAM Airlines
Sat 12/2711:55 pmEZE - BWI
1 stop19h 53mLATAM Airlines
Deal found 12/11$837

Find flight deals from Baltimore to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Buenos Aires (BUE). 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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$618
(Gotogate)

One-way from

$252
(Copa Airlines)

Popular in

July

Cheapest in

October

Average price

$1,074
Provider with most accurate pricing for Baltimore/Washington-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Buenos Aires (BUE) flights.
Search Deals
From Baltimore/Washington to Buenos Aires (BUE)
Search Deals
One-way flight from Baltimore/Washington to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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 December 14, 2025.
Use the filters below to find and compare flights from Baltimore to Buenos Aires that are best for you.

Fly from

Baltimore

Fly to

Buenos Aires

Route

Depart

Return

Price

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Fri 2/27

4:45 pm-9:00 am

1 stop14h 15m

Buenos Aires Ministro Pistarini

Fri 3/6

8:55 pm-11:54 am

1 stop16h 59m

$674

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 3/2

4:05 pm-9:20 am

1 stop15h 15m

Buenos Aires Ministro Pistarini

Sat 3/7

9:05 pm-9:30 pm

1 stop26h 25m

$674

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Mon 3/9

7:28 am-7:55 am

2 stops23h 27m

Buenos Aires Jorge Newbery

Wed 3/11

10:35 am-8:27 pm

2 stops34h 52m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Tue 1/20

8:07 am-7:20 am

1 stop21h 13m

Buenos Aires Ministro Pistarini

Thu 2/26

10:05 pm-11:30 am

1 stop15h 25m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Thu 1/22

10:33 am-9:00 am

1 stop20h 27m

Buenos Aires Ministro Pistarini

Sat 2/7

11:55 pm-11:54 am

1 stop13h 59m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Thu 1/8

4:45 pm-9:00 am

1 stop14h 15m

Buenos Aires Ministro Pistarini

Thu 1/29

8:55 pm-9:23 am

1 stop14h 28m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 1/12

8:07 am-7:20 am

1 stop21h 13m

Buenos Aires Ministro Pistarini

Tue 2/3

10:05 pm-4:06 pm

1 stop20h 01m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sat 2/28

8:20 am-7:20 am

1 stop21h 00m

Buenos Aires Ministro Pistarini

Sat 3/7

11:55 pm-9:10 pm

1 stop23h 15m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sat 2/28

7:15 am-7:20 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Fri 3/6

3:55 pm-10:00 am

2 stops20h 05m

$680

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Thu 1/15

8:07 am-7:20 am

1 stop21h 13m

Buenos Aires Ministro Pistarini

Mon 3/2

11:55 pm-4:10 pm

1 stop18h 15m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 41 results
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Compare providers for flights from Baltimore to Buenos Aires

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 Baltimore to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*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 Baltimore-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baltimore-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Buenos Aires 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 Baltimore-Buenos Aires 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 Baltimore to Buenos Aires

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

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

Currently, March is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $278). Flying from Baltimore to Buenos Aires in February is currently the most expensive (average of $709). 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 BWI to BUE?

Find hourly flight availability from Baltimore 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 December 14, 2025.

It’s typically best to fly out from Baltimore to Buenos Aires at noon. Doing so could potentially save you 20% 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 Baltimore to Buenos Aires?

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated December 14, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines, and LATAM Airlines from Baltimore to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.6
Good
1,557 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,892 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Baltimore to Buenos Aires?

    Located just 8.5 mi from the city center, Baltimore/Washington is the airport most travelers will use when flying to Buenos Aires from Baltimore. Booking flights from Baltimore/Washington (BWI) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 5 different airlines.

  • How long is the flight from Baltimore to Buenos Aires?

    Airlines like Delta, United Airlines, and LATAM Airlines fly from Baltimore to Buenos Aires in about 14h 15m. The time it takes to get you to your destination can typically vary by up to 9h 12m. The distance between Baltimore and Buenos Aires is about 5239 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Baltimore to Buenos Aires round-trip?

    According to our current data, Delta ($278), LATAM Airlines ($278), and Copa Airlines ($356) offers the cheapest pricing from Baltimore to Buenos Aires. Delta is 72% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $278). Flying from Baltimore to Buenos Aires in February is currently the most expensive (average of $709). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Baltimore to Buenos Aires

Discover the top 5 airlines that operate flights from Baltimore 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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$278Average$811FlexibilityNo cancel feeOn-time81%
DeltaCheapest$609Average$849FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$629Average$755FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$653Average$1,132FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$687Average$818FlexibilityNo cancel feeOn-time70%

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