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$270+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BUE
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$629
(Delta)

One-way from

$270
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$1,000
Provider with most accurate pricing for Baltimore/Washington-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Buenos Aires (BUE) flights.
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From Baltimore/Washington to Buenos Aires (BUE)
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One-way flight from Baltimore/Washington to Buenos Aires (BUE)
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Highest demand for flights based on searches. 19% potential increase in price ($278 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 29, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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 11/254:39 pmBWI - EZE
2 stops24h 06mDelta
Thu 12/48:55 pmEZE - BWI
1 stop20h 45mDelta
Deal found 4/28$615
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:50 pmBWI - EZE
2 stops36h 10mUnited Airlines
Thu 8/289:00 pmEZE - BWI
1 stop26h 45mUnited Airlines
Deal found 4/28$652
This LATAM Airlines deal was found by Cheapflights users on 4/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:18 pmBWI - AEP
2 stops19h 22mLATAM Airlines
Sun 5/1810:55 pmAEP - BWI
2 stops26h 53mLATAM Airlines
Deal found 4/28$687
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:50 pmBWI - EZE
2 stops28h 35mLATAM Airlines
Fri 9/57:35 amEZE - BWI
2 stops17h 42mLATAM Airlines
Deal found 4/28$716
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/264:49 pmBWI - EZE
1 stop28h 22mMultiple Airlines
Mon 6/28:30 pmEZE - BWI
1 stop20h 30mMultiple Airlines
Deal found 4/28$763
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/264:49 pmBWI - EZE
1 stop14h 30mCopa Airlines
Sun 6/12:13 amEZE - BWI
1 stop14h 02mCopa Airlines
Deal found 4/28$769
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:13 pmBWI - EZE
1 stop12h 37mAmerican Airlines
Tue 6/38:50 pmEZE - BWI
2 stops17h 09mAmerican Airlines
Deal found 4/28$875
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/317:57 pmBWI - AEP
3 stops43h 03mMultiple Airlines
Sat 6/73:30 amAEP - BWI
3 stops44h 11mMultiple Airlines
Deal found 4/29$939
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 9/126:10 pmBWI - AEP
2 stops18h 05mDelta
Mon 9/226:20 amAEP - BWI
2 stops17h 17mDelta
Deal found 4/28$1,101

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 April 29, 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

Mon 5/5

7:50 pm-9:45 am

1 stop12h 55m

Buenos Aires Ministro Pistarini

Mon 5/12

8:10 pm-9:10 am

1 stop14h 00m

$629

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 5/7

12:40 pm-8:00 am

1 stop18h 20m

Buenos Aires Ministro Pistarini

Tue 5/13

9:00 pm-10:53 pm

1 stop26h 53m

$663

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Wed 5/14

6:18 pm-2:40 pm

2 stops19h 22m

Buenos Aires Jorge Newbery

Sun 5/18

10:55 pm-12:48 am

2 stops26h 53m

$687

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 5/7

6:18 pm-2:30 am

2 stops55h 12m

Buenos Aires Ministro Pistarini

Wed 5/14

12:48 pm-10:47 am

2 stops22h 59m

$760

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 5/26

4:49 pm-10:11 pm

1 stop28h 22m

Buenos Aires Ministro Pistarini

Mon 6/2

8:30 pm-4:00 pm

1 stop20h 30m

$763

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 5/26

4:49 pm-8:19 am

1 stop14h 30m

Buenos Aires Ministro Pistarini

Sun 6/1

2:13 am-3:15 pm

1 stop14h 02m

$769

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Sat 5/31

7:57 pm-4:00 pm

3 stops43h 03m

Buenos Aires Jorge Newbery

Sat 6/7

3:30 am-10:41 pm

3 stops44h 11m

$939

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 7/23

3:21 pm-7:35 am

2 stops15h 14m

Buenos Aires Ministro Pistarini

Wed 8/13

8:30 pm-6:16 pm

1 stop22h 46m

$957

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Wed 5/7

6:18 pm-1:20 pm

2 stops18h 02m

Buenos Aires Jorge Newbery

Tue 5/20

2:40 pm-10:47 am

2 stops21h 07m

$4,835

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sun 7/13

6:00 am-8:00 am

1 stop25h 00m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 18 results
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Baltimore-Buenos Aires flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, April is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $795). Flying from Baltimore 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 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 April 29, 2025.

It’s typically best to fly out from Baltimore to Buenos Aires in the evening. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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 April 29, 2025.
Read through reviews of airlines operating flights from Baltimore to Buenos Aires, such as Delta, LATAM Airlines and Copa Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,411 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 4 different airlines.

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

    According to our current data, Delta ($629), United Airlines ($663), and LATAM Airlines ($687) offers the cheapest pricing from Baltimore to Buenos Aires. Delta is 45% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $270 on United Airlines. Other airlines that offer cheap prices include Copa Airlines from $283 and LATAM Airlines from $299 one-way.

  • 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, April is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $795). Flying from Baltimore 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

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Alternative routes for Baltimore 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 Baltimore to Buenos Aires

Discover the top 4 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$629Average$864FlexibilityNo cancel feeOn-time69%
DeltaCheapest$629Average$1,093FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$631Average$821FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$922Average$1,237FlexibilityNo cancel feeOn-time71%

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