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Buenos Aires

$280+ Cheap flights from Boston (BOS) 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BUE
janv. 3 — janv. 101
sam. 1/3
sam. 1/10
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boston Logan Intl to Buenos Aires are usually found in September or October, booked 55 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to Buenos Aires

Cheapest flights from Boston to Buenos Aires
Explore the most affordable flight options available from Boston to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 4, 2025.

This LATAM Airlines deal was found by Cheapflights users on 12/1. 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.
mer. 12/1010:15 amBOS - EZE
2 stops17h 50mLATAM Airlines
dim. 12/147:43 pmEZE - BOS
2 stops21h 27mLATAM Airlines
Deal found 12/1$831
This FlightHub deal was found by Cheapflights users on 12/1. 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.
ven. 12/58:55 amBOS - AEP
1 stop34h 35mLATAM Airlines
dim. 12/73:40 pmAEP - BOS
2 stops21h 32mLATAM Airlines
Deal found 12/1$852
This Ovago deal was found by Cheapflights users on 12/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/37:59 pmBOS - EZE
1 stop35h 36mLATAM Airlines
mer. 12/109:55 pmEZE - BOS
1 stop34h 40mLATAM Airlines
Deal found 12/2$854
This KAYAK deal was found by Cheapflights users on 12/2. 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.
mar. 12/93:20 pmBOS - EZE
2 stops27h 35mLATAM Airlines
dim. 12/147:45 amEZE - BOS
2 stops28h 30mLATAM Airlines
Deal found 12/2$857
This Mytrip deal was found by Cheapflights users on 12/3. 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.
jeu. 12/410:45 amBOS - EZE
3 stops35h 50mMultiple Airlines
mer. 12/101:40 amEZE - BOS
2 stops24h 16mMultiple Airlines
Deal found 12/3$862
This Priceline deal was found by Cheapflights users on 12/3. 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.
jeu. 12/47:59 pmBOS - EZE
1 stop35h 36mLATAM Airlines
jeu. 12/117:00 amEZE - BOS
1 stop25h 35mLATAM Airlines
Deal found 12/3$895
This KAYAK deal was found by Cheapflights users on 12/1. 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.
mer. 12/109:15 amBOS - AEP
2 stops20h 40mLATAM Airlines
dim. 12/143:40 pmAEP - BOS
2 stops20h 30mLATAM Airlines
Deal found 12/1$911
This KAYAK deal was found by Cheapflights users on 12/2. 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.
jeu. 12/113:20 pmBOS - EZE
2 stops21h 35mLATAM Airlines
lun. 12/157:43 pmEZE - BOS
2 stops24h 31mLATAM Airlines
Deal found 12/2$916
This Ovago deal was found by Cheapflights users on 12/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/117:05 amBOS - AEP
2 stops25h 25mLATAM Airlines
lun. 12/158:25 pmAEP - BOS
2 stops20h 45mLATAM Airlines
Deal found 12/2$919
This LATAM Airlines deal was found by Cheapflights users on 12/1. 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.
ven. 12/128:55 amBOS - EZE
1 stop14h 10mLATAM Airlines
jeu. 12/187:43 pmEZE - BOS
2 stops24h 31mLATAM Airlines
Deal found 12/1$951
This KAYAK deal was found by Cheapflights users on 12/2. 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.
lun. 12/88:55 amBOS - AEP
1 stop22h 45mLATAM Airlines
mar. 12/169:05 pmAEP - BOS
2 stops28h 20mLATAM Airlines
Deal found 12/2$966
This LATAM Airlines deal was found by Cheapflights users on 12/1. 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.
sam. 12/611:20 amBOS - AEP
3 stops22h 25mLATAM Airlines
mer. 12/102:55 pmAEP - BOS
2 stops21h 20mLATAM Airlines
Deal found 12/1$968

Find flight deals from Boston to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 décembre 4, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$829
(LATAM Airlines)

One-way from

$280
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,262
Provider with most accurate pricing for Boston Logan Intl-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Buenos Aires (BUE) flights.
Search Deals
From Boston Logan Intl to Buenos Aires (BUE)
Search Deals
One-way flight from Boston Logan Intl to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($9 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 Boston 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 décembre 4, 2025.
Use the filters below to find and compare flights from Boston to Buenos Aires that are best for you.

Fly from

Boston

Fly to

Buenos Aires

Route

Depart

Return

Price

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

sam. 3/14

7:05 am-9:15 am

2 stops25h 10m

Buenos Aires Ministro Pistarini

jeu. 3/19

7:10 am-7:35 am

1 stop25h 25m

$853

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

sam. 1/24

5:34 am-7:30 am

2 stops23h 56m

Buenos Aires Jorge Newbery

lun. 2/9

9:50 am-4:19 pm

3 stops32h 29m

$871

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

jeu. 3/12

7:54 pm-4:00 pm

2 stops19h 06m

Buenos Aires Jorge Newbery

dim. 3/22

6:20 pm-7:35 am

1 stop14h 15m

$898

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

lun. 2/2

8:55 am-2:00 pm

1 stop27h 05m

Buenos Aires Jorge Newbery

mar. 2/10

10:10 pm-11:59 pm

2 stops27h 49m

$906

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

ven. 1/23

5:23 pm-6:55 am

3 stops35h 32m

Buenos Aires Ministro Pistarini

dim. 2/8

6:40 am-4:19 pm

3 stops35h 39m

$910

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

lun. 3/16

6:40 pm-3:10 pm

3 stops43h 30m

Buenos Aires Ministro Pistarini

lun. 3/30

4:35 pm-9:52 am

2 stops18h 17m

$929

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

sam. 3/14

11:25 am-7:55 am

2 stops19h 30m

Buenos Aires Jorge Newbery

jeu. 3/19

6:20 pm-7:35 am

1 stop14h 15m

$950

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

mer. 2/4

5:23 pm-6:55 am

3 stops35h 32m

Buenos Aires Ministro Pistarini

mer. 2/18

8:00 am-11:48 pm

1 stop17h 48m

$952

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

jeu. 3/12

8:55 am-1:00 pm

2 stops27h 05m

Buenos Aires Jorge Newbery

dim. 3/22

10:30 pm-7:35 am

2 stops34h 05m

$955

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

mer. 3/4

5:30 am-3:00 pm

3 stops31h 30m

Buenos Aires Ministro Pistarini

dim. 3/15

4:55 pm-2:50 pm

2 stops22h 55m

$983

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 41 results
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Compare providers for flights from Boston 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 Boston to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice 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 Boston-Buenos Aires flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Boston-Buenos Aires flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Boston-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Buenos Aires flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Boston-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 Boston to Buenos Aires

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

How far ahead should I book a flight from Boston to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Buenos Aires. Price data was last updated on November 28, 2025.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $526). Flying from Boston to Buenos Aires in March is currently the most expensive (average of $973). 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 BOS to BUE?

Find hourly flight availability from Boston 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 décembre 4, 2025.

It’s typically best to fly out from Boston to Buenos Aires in the afternoon. Doing so could potentially save you 79% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Boston to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Boston to Buenos Aires. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Buenos Aires flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

What’s the top layover airport for flights from Boston to Buenos Aires?

Share of 1-stop round-trip flights from Boston to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same layover each way.

Panama City (PTY) – chosen by Cheapflights users on 86% of 1-stop itineraries from Boston to Buenos Aires on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Buenos Aires?

Average round-trip fare for 1-stop flights from Boston to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $1,201.

What’s the fastest layover option from Boston to Buenos Aires?

Shortest average travel time for 1-stop one-way flights from Boston to Buenos Aires, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 14h 05m.

Which airport typically offers the quickest layover for flights from Boston to Buenos Aires?

Average layover duration for 1-stop one-way flights from Boston to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 20m.

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 décembre 4, 2025.
See what other customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Boston to Buenos Aires have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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
1,558 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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
1,889 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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
9,063 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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.
American Airlines
7.2
Good
11,045 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

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 Boston 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 Boston to Buenos Aires?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Buenos Aires. On average, Logan Intl has 0 outbound flights to Buenos Aires per day from 6 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    A quick flight from Boston to Buenos Aires can take about 25h 10m. LATAM Airlines provides one of the quickest options available for as low as $853. The distance from Boston to Buenos Aires is about 5387 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Avianca ($371), LATAM Airlines ($507), and Copa Airlines ($796) offers the cheapest pricing from Boston to Buenos Aires. These flights start at 68% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Arajet, with whom users have recently found tickets for as low as $335. However, be on the lookout for offers from Avianca and American Airlines, as they are both options that can get you from Boston to Buenos Aires for a low price.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $526). Flying from Boston to Buenos Aires in March is currently the most expensive (average of $973). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Boston to Buenos Aires

Discover the top 6 airlines that operate flights from Boston 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 décembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$517Average$1,010FlexibilityNo cancel feeOn-time81%
AviancaCheapest$700Average$786FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$796Average$1,288FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$861Average$1,303FlexibilityNo cancel feeOn-time69%
DeltaCheapest$908Average$1,248FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,013Average$1,279FlexibilityNo cancel feeOn-time71%

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