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$326+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BUE
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Buenos Aires are usually found in October or June, booked 39 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$882
(Mytrip)

One-way from

$326
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,161
Provider with most accurate pricing for Boston Logan Intl-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Buenos Aires (BUE) flights.
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From Boston Logan Intl to Buenos Aires (BUE)
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One-way flight from Boston Logan Intl to Buenos Aires (BUE)
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Highest demand for flights based on searches. 7% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($36 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 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 April 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/17. 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 5/136:10 amBOS - AEP
3 stops29h 30mMultiple Airlines
Wed 5/285:55 amAEP - BOS
2 stops26h 20mMultiple Airlines
Deal found 4/17$882
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/73:20 pmBOS - EZE
2 stops22h 10mAir Canada
Wed 5/214:35 pmEZE - BOS
3 stops22h 57mAir Canada
Deal found 4/17$882
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Mon 5/54:50 pmBOS - EZE
2 stops21h 30mMultiple Airlines
Sun 5/112:30 amEZE - BOS
2 stops21h 59mMultiple Airlines
Deal found 4/16$883
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Thu 5/84:30 pmBOS - AEP
3 stops38h 10mLATAM Airlines
Wed 5/1412:55 pmAEP - BOS
2 stops35h 09mLATAM Airlines
Deal found 4/17$888
This Orbitz deal was found by Cheapflights users on 4/16. 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.
Tue 5/139:00 amBOS - EZE
1 stop14h 10mAvianca
Tue 5/206:40 amEZE - BOS
2 stops33h 15mAvianca
Deal found 4/16$900
This CrystalTravel deal was found by Cheapflights users on 4/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/23:50 pmBOS - EZE
2 stops24h 55mLATAM Airlines
Wed 11/197:35 pmEZE - BOS
2 stops17h 44mLATAM Airlines
Deal found 4/16$1,020
This Copa Airlines deal was found by Cheapflights users on 4/16. 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 10/148:41 amBOS - EZE
1 stop15h 14mCopa Airlines
Mon 10/2712:49 amEZE - BOS
1 stop19h 31mCopa Airlines
Deal found 4/16$1,023
This Delta deal was found by Cheapflights users on 4/16. 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.
Mon 9/19:55 amBOS - EZE
1 stop13h 55mDelta
Tue 9/168:10 pmEZE - BOS
1 stop15h 56mDelta
Deal found 4/16$1,031
This United Airlines deal was found by Cheapflights users on 4/16. 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 9/411:00 amBOS - EZE
2 stops20h 00mUnited Airlines
Tue 9/169:00 pmEZE - BOS
1 stop16h 35mUnited Airlines
Deal found 4/16$1,035
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 6/165:59 pmBOS - EZE
1 stop15h 16mAmerican Airlines
Tue 7/89:15 pmEZE - BOS
1 stop21h 03mAmerican Airlines
Deal found 4/17$1,085
This Gurufare deal was found by Cheapflights users on 4/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/271:05 pmBOS - AEP
2 stops22h 55mGOL
Thu 6/53:40 amAEP - BOS
2 stops20h 45mGOL
Deal found 4/17$1,368
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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.
Mon 6/94:50 pmBOS - AEP
2 stops35h 50mAvianca
Mon 8/257:00 amAEP - BOS
1 stop25h 15mAvianca
Deal found 4/17$1,463

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 April 17, 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 - AEP

BOSAEP

Boston Logan Intl

Tue 5/13

6:10 am-12:40 pm

3 stops29h 30m

Buenos Aires Jorge Newbery

Wed 5/28

5:55 am-7:15 am

2 stops26h 20m

$882

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 5/7

3:20 pm-2:30 pm

2 stops22h 10m

Buenos Aires Ministro Pistarini

Wed 5/21

4:35 pm-2:32 pm

3 stops22h 57m

$882

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 5/5

4:50 pm-3:20 pm

2 stops21h 30m

Buenos Aires Ministro Pistarini

Sun 5/11

2:30 am-11:29 pm

2 stops21h 59m

$883

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Thu 5/8

4:30 pm-7:40 am

3 stops38h 10m

Buenos Aires Jorge Newbery

Wed 5/14

12:55 pm-11:04 pm

2 stops35h 09m

$888

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 5/13

9:00 am-12:10 am

1 stop14h 10m

Buenos Aires Ministro Pistarini

Tue 5/20

6:40 am-2:55 pm

2 stops33h 15m

$900

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 10/14

8:41 am-12:44 am

1 stop15h 03m

Buenos Aires Ministro Pistarini

Mon 10/20

2:13 am-7:22 pm

1 stop18h 09m

$1,023

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 9/1

9:55 am-12:50 am

1 stop13h 55m

Buenos Aires Ministro Pistarini

Tue 9/16

8:10 pm-11:06 am

1 stop15h 56m

$1,031

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Thu 9/4

11:00 am-8:00 am

2 stops20h 00m

Buenos Aires Ministro Pistarini

Tue 9/16

9:00 pm-12:35 pm

1 stop16h 35m

$1,035

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Sun 7/6

9:55 am-1:25 am

2 stops38h 30m

Buenos Aires Ministro Pistarini

Sun 7/13

6:40 am-7:35 am

1 stop25h 55m

$1,052

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 6/16

5:59 pm-10:15 am

1 stop15h 16m

Buenos Aires Ministro Pistarini

Tue 7/8

9:15 pm-5:18 pm

1 stop21h 03m

$1,085

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 23 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Buenos Aires flight deals on Cheapflights vs. AranGrant >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 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 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 April 11, 2025.

Booking 39 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, April is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $795). Flying from Boston 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 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 April 17, 2025.

It’s typically best to fly out from Boston to Buenos Aires in the morning. Doing so could potentially save you 16% on the flight price compared to flying at noon, 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 Tuesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 17, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines and LATAM Airlines from Boston to Buenos Aires. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7.6
Good
1,409 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
1,761 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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.
GOL
7.3
Good
1,059 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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 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 7 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    According to our current data, Air Canada ($882), LATAM Airlines ($888), and Avianca ($900) offers the cheapest pricing from Boston to Buenos Aires. These flights start at 25% 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 Avianca, with whom users have recently found tickets for as low as $344. However, be on the lookout for offers from GOL and Copa Airlines, as they are both options that can get you from Boston to Buenos Aires for a low price.

  • Where are the most common layover locations when flying from Boston to Buenos Aires?

    Of the flights from Boston to Buenos Aires that have layovers, most of them stop in New York.

  • What are some popular things to do or see while on a layover in New York?

    The majority of New York visitors spend their time at Times Square, New York City Center, and Madison Square Garden. Times Square, New York City Center, and Madison Square Garden are located about 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl. Travelers can rent a car at New York John F Kennedy Intl for an average daily rate of $68 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Boston to Buenos Aires flights?

    Boston to Buenos Aires flights that have layovers will least frequently stop in Miami.

  • 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, April is the cheapest month in which you can book a flight from Boston to Buenos Aires (average of $795). Flying from Boston 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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Top 7 airlines flying from Boston to Buenos Aires

Discover the top 7 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$512Average$1,068FlexibilityNo cancel feeOn-time81%
AviancaCheapest$603Average$878FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$649Average$1,231FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$849Average$876FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$962Average$1,244FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$993Average$1,283FlexibilityNo cancel feeOn-time69%
DeltaCheapest$998Average$1,182FlexibilityNo cancel feeOn-timeN/A

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