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

According to our current data, Avianca ($873), LATAM Airlines ($886), and Air Canada ($921) offers the cheapest pricing from Boston to Buenos Aires. These flights start at 26% 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 $314. However, be on the lookout for offers from Copa Airlines and LATAM Airlines, as they are both options that can get you from Boston to Buenos Aires for a low price.

What are the most popular airlines that fly from Boston to Buenos Aires?

When booking a flight from Boston to Buenos Aires, you may want to consider flying on American Airlines, Avianca or Copa Airlines as they are the most popular for this route.

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.

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.

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 $70 to make sightseeing during their layover a little easier.

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

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 19% when planning your travel around this day of the week.

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

Users have found that booking a flight from Boston to Buenos Aires at least 40 days early can save you up to 115% on average compared to booking a flight this week. If booking 40 days before your flight isn’t an option for you, users have found flights from Boston to Buenos Aires for as little as $1,051 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,650 for flights departing within the next 3 days.

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

Our data shows that October tends to be the cheapest month to fly to Buenos Aires from Boston. Users have commonly found prices around $1,185 for the month, but tickets can be as low as $720. Due to multiple factors, prepare for potentially higher prices in December.

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.

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.

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.

$314+ Flights from Boston to Buenos Aires - Compare & Save Big

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Find cheap flights from Boston to Buenos Aires with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$873 (Travelocity)
One-way from	$314 (Priceline)
Popular in	December
Cheapest in	October
Average price	$1,129

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. 8% potential increase in price ($107 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

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 May 1, 2025.

Wed 5/144:50 pmBOS - EZE

2 stops30h 20mAvianca

Tue 5/201:40 amEZE - BOS

1 stop30h 35mAvianca

Deal found 4/29

$873

Mon 6/25:42 pmBOS - AEP

3 stops41h 58mMultiple Airlines

Sun 6/1512:05 amAEP - BOS

3 stops47h 51mMultiple Airlines

Deal found 4/30

$874

Sat 5/36:45 pmBOS - EZE

3 stops42h 45mAir Canada

Thu 5/154:35 pmEZE - BOS

3 stops42h 00mAir Canada

Deal found 4/30

$874

Tue 10/79:00 amBOS - EZE

1 stop14h 10mMultiple Airlines

Mon 10/131:40 amEZE - BOS

3 stops47h 59mMultiple Airlines

Deal found 4/30

$876

Thu 8/219:00 amBOS - AEP

1 stop19h 40mAvianca

Sun 8/317:00 amAEP - BOS

2 stops32h 55mAvianca

Deal found 4/29

$878

Sun 5/185:40 amBOS - AEP

2 stops38h 50mLATAM Airlines

Sat 5/243:40 pmAEP - BOS

2 stops25h 07mLATAM Airlines

Deal found 4/30

$886

Sun 10/263:50 pmBOS - EZE

2 stops25h 55mLATAM Airlines

Thu 11/137:15 amEZE - BOS

1 stop25h 20mLATAM Airlines

Deal found 5/1

$1,014

Thu 8/144:05 pmBOS - EZE

1 stop14h 49mCopa Airlines

Wed 8/275:03 amEZE - BOS

1 stop15h 27mCopa Airlines

Deal found 4/30

$1,023

Tue 6/245:25 amBOS - EZE

1 stop25h 35mUnited Airlines

Mon 7/289:00 pmEZE - BOS

2 stops18h 16mUnited Airlines

Deal found 4/30

$1,040

Thu 7/176:50 amBOS - EZE

1 stop25h 55mDelta

Mon 8/48:10 pmEZE - BOS

1 stop17h 03mDelta

Deal found 4/30

$1,046

Best flights from Boston to Buenos Aires
Discover carefully curated flight deals from Boston to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Wed 5/144:50 pmBOS - EZE

2 stops30h 20mAvianca

Tue 5/201:40 amEZE - BOS

1 stop30h 35mAvianca

Deal found 4/29

$873

Mon 6/25:42 pmBOS - AEP

3 stops41h 58mMultiple Airlines

Sun 6/1512:05 amAEP - BOS

3 stops47h 51mMultiple Airlines

Deal found 4/30

$874

Sun 5/185:40 amBOS - AEP

2 stops38h 50mLATAM Airlines

Sat 5/243:40 pmAEP - BOS

2 stops25h 07mLATAM Airlines

Deal found 4/30

$886

Wed 6/185:50 amBOS - EZE

2 stops31h 40mAir Canada

Thu 8/74:35 pmEZE - BOS

2 stops18h 00mAir Canada

Deal found 4/30

$921

Thu 8/144:05 pmBOS - EZE

1 stop14h 49mCopa Airlines

Wed 8/275:03 amEZE - BOS

1 stop15h 27mCopa Airlines

Deal found 4/30

$1,023

Tue 6/245:25 amBOS - EZE

1 stop25h 35mUnited Airlines

Mon 7/289:00 pmEZE - BOS

2 stops18h 16mUnited Airlines

Deal found 4/30

$1,040

Thu 7/176:50 amBOS - EZE

1 stop25h 55mDelta

Mon 8/48:10 pmEZE - BOS

1 stop17h 03mDelta

Deal found 4/30

$1,046

Sun 5/185:34 pmBOS - AEP

2 stops18h 26mGOL

Fri 5/233:40 amAEP - BOS

2 stops21h 39mGOL

Deal found 4/30

$1,423

Tue 10/79:00 amBOS - EZE

1 stop14h 10mMultiple Airlines

Mon 10/131:40 amEZE - BOS

3 stops47h 59mMultiple Airlines

Deal found 4/30

$876

Wed 6/114:50 pmBOS - AEP

2 stops35h 50mAvianca

Mon 6/167:00 amAEP - BOS

1 stop25h 15mAvianca

Deal found 4/30

$880

Sun 10/263:50 pmBOS - EZE

2 stops25h 55mLATAM Airlines

Thu 11/137:15 amEZE - BOS

1 stop25h 20mLATAM Airlines

Deal found 5/1

$1,014

Thu 6/124:45 pmBOS - AEP

2 stops23h 35mAir Canada

Tue 8/121:40 pmAEP - BOS

2 stops21h 15mAir Canada

Deal found 4/29

$1,464

Last-minute flights from Boston to Buenos Aires
Discover last-minute flight deals from Boston to Buenos Aires. Data last updated May 1, 2025 and is based on user searches.

Sat 5/36:45 pmBOS - EZE

3 stops42h 45mAir Canada

Thu 5/154:35 pmEZE - BOS

3 stops42h 00mAir Canada

Deal found 4/30

$874

Mon 5/55:30 pmBOS - AEP

2 stops18h 50mDelta

Wed 5/143:05 pmAEP - BOS

1 stop17h 30mDelta

Deal found 4/30

$7,375

Mon 5/53:41 pmBOS - EZE

1 stop15h 19mUnited Airlines

Thu 5/159:00 pmEZE - BOS

1 stop25h 21mUnited Airlines

Deal found 4/30

$1,145

Tue 5/66:55 pmBOS - EZE

2 stops18h 35mAir Canada

Mon 5/124:35 pmEZE - BOS

2 stops18h 20mAir Canada

Deal found 4/30

$927

Tue 5/69:00 amBOS - AEP

2 stops26h 00mMultiple Airlines

Fri 5/1612:45 pmAEP - BOS

1 stop19h 30mMultiple Airlines

Deal found 4/30

$1,058

Tue 5/61:33 pmBOS - EZE

1 stop17h 27mUnited Airlines

Tue 5/139:00 pmEZE - BOS

1 stop16h 27mUnited Airlines

Deal found 4/30

$1,145

Tue 5/65:34 pmBOS - AEP

2 stops18h 26mGOL

Tue 5/133:40 amAEP - BOS

2 stops20h 08mGOL

Deal found 4/30

$1,780

Wed 5/75:05 pmBOS - AEP

2 stops20h 35mLATAM Airlines

Wed 5/1410:55 pmAEP - BOS

2 stops27h 22mLATAM Airlines

Deal found 4/29

$1,103

Wed 5/77:00 pmBOS - AEP

2 stops21h 20mAir Canada

Tue 5/131:40 pmAEP - BOS

2 stops21h 15mAir Canada

Deal found 4/30

$1,464

Fri 5/94:50 pmBOS - EZE

3 stops31h 35mAvianca

Sat 5/312:30 amEZE - BOS

3 stops37h 25mAvianca

Deal found 4/30

$925

Fri 5/96:55 pmBOS - EZE

2 stops18h 35mMultiple Airlines

Sat 5/312:30 amEZE - BOS

3 stops37h 25mMultiple Airlines

Deal found 4/30

$1,021

Fri 5/94:25 pmBOS - EZE

1 stop16h 20mDelta

Sun 6/18:10 pmEZE - BOS

1 stop15h 37mDelta

Deal found 4/30

$1,220

One-way flights from Boston to Buenos Aires
Search for one-way flight options from Boston to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Tue 6/109:00 amBOS - EZE

2 stops18h 25mAvianca

Deal found 4/29

$314

Tue 6/105:45 amBOS - AEP

2 stops30h 15mMultiple Airlines

Deal found 4/29

$358

Tue 6/109:00 amBOS - AEP

1 stop19h 40mAvianca

Deal found 4/29

$371

Tue 6/106:00 amBOS - EZE

3 stops20h 58mMultiple Airlines

Deal found 4/29

$400

Sun 8/248:44 amBOS - EZE

1 stop15h 00mCopa Airlines

Deal found 4/30

$475

Sun 7/63:45 pmBOS - AEP

2 stops23h 20mLATAM Airlines

Deal found 4/30

$478

Sun 7/65:31 pmBOS - EZE

1 stop37h 29mUnited Airlines

Deal found 4/29

$497

Wed 5/213:00 pmBOS - EZE

1 stop15h 15mAmerican Airlines

Deal found 4/30

$553

Wed 5/2110:20 amBOS - EZE

3 stops27h 10mAir Canada

Deal found 4/30

$585

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 5/14

4:50 pm-12:10 am

2 stops30h 20m

Buenos Aires Ministro Pistarini

Tue 5/20

1:40 am-7:15 am

1 stop30h 35m

$873

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Mon 6/2

5:42 pm-12:40 pm

3 stops41h 58m

Buenos Aires Jorge Newbery

Sun 6/15

12:05 am-10:56 pm

3 stops47h 51m

$874

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 10/7

9:00 am-12:10 am

1 stop14h 10m

Buenos Aires Ministro Pistarini

Mon 10/13

1:40 am-12:39 am

3 stops47h 59m

$876

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Thu 8/21

9:00 am-5:40 am

1 stop19h 40m

Buenos Aires Jorge Newbery

Sun 8/31

7:00 am-2:55 pm

2 stops32h 55m

$878

BostonBuenos Aires

BOS - AEP

BOSAEP

Boston Logan Intl

Sun 5/18

5:40 am-9:30 pm

2 stops38h 50m

Buenos Aires Jorge Newbery

Sat 5/24

3:40 pm-3:47 pm

2 stops25h 07m

$886

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 6/18

5:50 am-2:30 pm

2 stops31h 40m

Buenos Aires Ministro Pistarini

Thu 8/7

4:35 pm-9:35 am

2 stops18h 00m

$921

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Sun 10/26

3:50 pm-6:45 pm

2 stops25h 55m

Buenos Aires Ministro Pistarini

Thu 11/13

7:15 am-6:35 am

1 stop25h 20m

$1,014

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Thu 8/14

4:05 pm-7:54 am

1 stop14h 49m

Buenos Aires Ministro Pistarini

Wed 8/27

5:03 am-7:30 pm

1 stop15h 27m

$1,023

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 6/24

5:25 am-8:00 am

1 stop25h 35m

Buenos Aires Ministro Pistarini

Mon 7/28

9:00 pm-2:16 pm

2 stops18h 16m

$1,040

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Thu 7/17

6:50 am-9:45 am

1 stop25h 55m

Buenos Aires Ministro Pistarini

Mon 8/4

8:10 pm-12:13 pm

1 stop17h 03m

$1,046

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 results

Compare providers for flights from Boston to Buenos Aires

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 May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*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?

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?

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?

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

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

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

Read reviews from past customers who have flown Delta, LATAM Airlines and Copa 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

7,934 reviews

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

7,934 reviews

Delta

8.0

Very good

7,934 reviews

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

7,934 reviews

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

1,414 reviews

Delta

8.0

Very good

7,934 reviews

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

7,934 reviews

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

1,068 reviews

Delta

8.0

Very good

7,934 reviews

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

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.
What are the cheapest airlines flying from Boston to Buenos Aires round-trip?
According to our current data, Avianca ($873), LATAM Airlines ($886), and Air Canada ($921) offers the cheapest pricing from Boston to Buenos Aires. These flights start at 26% 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 $314. However, be on the lookout for offers from Copa Airlines and LATAM 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 $70 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

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Boston to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
LATAM Airlines	Cheapest$512	Average$1,068	FlexibilityNo cancel fee	On-time81%
Avianca	Cheapest$603	Average$878	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$649	Average$1,379	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$967	Average$1,249	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$993	Average$1,283	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$1,004	Average$1,187	FlexibilityNo cancel fee	On-timeN/A

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$314+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Buenos Aires with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Boston to Buenos Aires

Cheapest flights from Boston to Buenos AiresExplore 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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Buenos Aires that are best for you.

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 May.

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.

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 25, 2025.

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

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 May 1, 2025.

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.

Rainfall in Buenos Aires by month

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

Temperature in Buenos Aires by month

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

Reviews of airlines servicing Buenos Aires

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

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?

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

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

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

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

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

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

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

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

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

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Alternative routes for Boston to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Boston to Buenos Aires

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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 May 1, 2025.