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Buenos Aires

$275+ 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 11/2. 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 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 September 15, 2025.

Round-trip from

$639
(United Airlines)

One-way from

$275
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$969
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. 27% potential increase in price ($425 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($104 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 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 September 15, 2025.

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/172:54 pmBWI - EZE
1 stop16h 06mUnited Airlines
Wed 10/2910:55 pmEZE - BWI
1 stop18h 07mUnited Airlines
Deal found 9/13$639
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:49 pmBWI - EZE
1 stop34h 09mCopa Airlines
Sun 10/52:32 pmEZE - BWI
1 stop25h 36mCopa Airlines
Deal found 9/14$643
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:54 amBWI - EZE
2 stops22h 21mAmerican Airlines
Sun 11/29:40 pmEZE - BWI
1 stop21h 08mAmerican Airlines
Deal found 9/14$644
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.
Wed 9/176:48 amBWI - AEP
2 stops33h 12mLATAM Airlines
Wed 10/292:55 pmAEP - BWI
2 stops22h 41mLATAM Airlines
Deal found 9/13$645
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:18 amBWI - EZE
2 stops26h 37mDelta
Tue 11/47:50 amEZE - BWI
2 stops18h 51mDelta
Deal found 9/14$645
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:16 pmBWI - EZE
1 stop37h 04mUnited Airlines
Thu 12/411:55 pmEZE - BWI
1 stop24h 30mUnited Airlines
Deal found 9/13$648
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:41 pmBWI - EZE
2 stops19h 34mDelta
Wed 11/58:55 pmEZE - BWI
1 stop20h 44mDelta
Deal found 9/14$650
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:48 amBWI - EZE
2 stops33h 23mLATAM Airlines
Mon 11/37:50 amEZE - BWI
2 stops18h 51mLATAM Airlines
Deal found 9/14$652
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:52 pmBWI - EZE
2 stops17h 43mLATAM Airlines
Sat 12/2011:00 amEZE - BWI
2 stops25h 48mLATAM Airlines
Deal found 9/14$664
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:00 amBWI - EZE
2 stops21h 55mLATAM Airlines
Tue 12/28:00 amEZE - BWI
2 stops18h 27mLATAM Airlines
Deal found 9/13$675
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:49 pmBWI - EZE
1 stop31h 06mMultiple Airlines
Sun 10/266:15 amEZE - BWI
2 stops30h 20mMultiple Airlines
Deal found 9/13$677
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:25 pmBWI - EZE
2 stops54h 05mLATAM Airlines
Tue 11/44:05 amEZE - BWI
2 stops22h 36mLATAM Airlines
Deal found 9/14$682

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 September 15, 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 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

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 11/26

6:00 am-7:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Wed 12/3

11:55 pm-4:15 pm

1 stop18h 20m

$639

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Thu 11/6

1:41 pm-11:40 am

2 stops19h 59m

Buenos Aires Jorge Newbery

Tue 11/11

2:55 pm-11:10 am

2 stops22h 15m

$645

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 11/5

6:22 pm-9:00 am

1 stop12h 38m

Buenos Aires Ministro Pistarini

Sun 11/9

8:55 pm-9:22 am

1 stop14h 27m

$645

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Thu 11/27

1:51 pm-2:40 pm

2 stops22h 49m

Buenos Aires Jorge Newbery

Wed 12/3

2:55 pm-10:12 am

2 stops21h 17m

$645

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sun 11/16

4:49 pm-9:00 am

1 stop14h 11m

Buenos Aires Ministro Pistarini

Tue 12/2

8:55 pm-9:24 am

1 stop14h 29m

$645

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Wed 10/29

1:41 pm-6:40 pm

2 stops27h 59m

Buenos Aires Jorge Newbery

Tue 11/4

12:40 pm-5:17 pm

2 stops30h 37m

$645

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 11/5

10:18 am-9:00 am

1 stop20h 42m

Buenos Aires Ministro Pistarini

Tue 11/11

8:55 pm-11:10 am

1 stop16h 15m

$645

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Fri 10/31

1:50 pm-4:00 pm

2 stops25h 10m

Buenos Aires Jorge Newbery

Sun 11/2

2:55 pm-1:43 pm

2 stops24h 48m

$645

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Tue 11/4

6:22 pm-9:00 am

1 stop12h 38m

Buenos Aires Ministro Pistarini

Sun 11/9

8:55 pm-6:22 pm

1 stop23h 27m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 42 results
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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 September 15, 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.

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 September 15, 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
8.0
Very good
7,956 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.6
Good
1,531 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,847 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Airlines like United Airlines, LATAM Airlines, and Delta fly from Baltimore to Buenos Aires in about 12h 38m. The time it takes to get you to your destination can typically vary by up to 7h 21m. 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 ($629), United Airlines ($629), and American Airlines ($653) offers the cheapest pricing from Baltimore to Buenos Aires. Delta is 44% 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 $275 on United Airlines. Other airlines that offer cheap prices include American Airlines from $275 and LATAM Airlines from $278 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$629Average$769FlexibilityNo cancel feeOn-time69%
DeltaCheapest$629Average$1,033FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$653Average$1,290FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$688Average$818FlexibilityNo cancel feeOn-time70%

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