Which layover airport offers the lowest fares from Boston to Buenos Aires?

Flights via Santo Domingo (SDQ) offer the lowest average round-trip price of $817.

What is the cheapest airline that flies from Boston Logan Intl to Buenos Aires?

Arajet is the most popular carrier operating from Boston Logan Intl to Buenos Aires

What airlines fly to Buenos Aires?

LATAM Airlines, American Airlines and Delta are the top three most popular airlines that fly to Buenos Aires from Boston according to our data. LATAM Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 5 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Boston to Buenos Aires?

Miami (MIA) has the shortest average layover time for this route: 1h 30m.

Which layover airport has the shortest travel time from Boston to Buenos Aires?

Flights connecting via Miami (MIA) have the shortest average one-way travel time: 13h 42m.

Which airport is the most popular layover for flights between Boston and Buenos Aires?

Miami (MIA) was the most common stop: 31% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Boston Logan Intl Airport to Buenos Aires?

Prices for flights from Boston Logan Intl Airport to Buenos Aires refresh daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to Buenos Aires?

The number of operators available for flights from Boston Logan Intl Airport to Buenos Aires is 5 as of August 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Buenos Aires?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$177 Cheap Flights from Boston to Buenos Aires in 2026

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Find the cheapest flights from Boston to Buenos Aires

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:15 pm - 3:23 am-

14h 08m

6:35 am - 9:45 am-

29h 10m

$655Arajet

Fri, Sep 11 - Tue, Nov 10

12:15 pm - 3:23 am-

14h 08m

9:45 am - 10:45 am-

26h 00m

$692Arajet

Fri, Sep 11 - Thu, Sep 24

8:55 am - 1:15 am-

14h 20m

5:00 pm - 6:45 am-

15h 45m

$843LATAM Airlines

Sat, Nov 7 - Sat, Nov 21

1:35 pm - 10:35 am-

19h 00m

5:00 pm - 6:45 am-

15h 45m

$848LATAM Airlines

Wed, Nov 11 - Sat, Nov 21

8:55 am - 4:00 pm-

29h 05m

5:00 pm - 6:45 am-

15h 45m

$877Delta

Fri, Nov 6 - Fri, Nov 13

7:41 am - 5:53 am-

20h 12m

5:16 am - 10:01 pm-

18h 45m

$880Copa Airlines

Tue, Nov 10 - Wed, Nov 18

7:41 am - 1:11 am-

15h 30m

5:16 am - 10:01 pm-

18h 45m

$880Copa Airlines

Tue, Nov 3 - Tue, Nov 17

3:33 pm - 3:00 am-

33h 27m

2:05 am - 6:45 am-

30h 40m

$882Delta

Thu, Nov 5 - Thu, Nov 12

12:00 pm - 10:05 am-

20h 05m

9:10 pm - 9:16 am-

14h 06m

$892American Airlines

Wed, Nov 11 - Sat, Nov 21

1:03 pm - 8:40 am-

17h 37m

9:40 pm - 12:20 pm-

16h 40m

$896American Airlines

Wed, Nov 11 - Sat, Nov 21

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Arajet flights from Boston to Buenos Aires

Our best Arajet deals on Boston to Buenos Aires flight tickets

Arajet

Sep 11

BOS12:15 pmBoston Logan Intl

14h 08m

1 stop

EZE3:23 amBuenos Aires Ministro Pistarini

Nov 10

EZE6:35 amBuenos Aires Ministro Pistarini

29h 10m

1 stop

BOS9:45 amBoston Logan Intl

$655

Arajet

Sep 11

BOS12:15 pmBoston Logan Intl

14h 08m

1 stop

EZE3:23 amBuenos Aires Ministro Pistarini

Sep 24

EZE9:45 amBuenos Aires Ministro Pistarini

26h 00m

1 stop

BOS10:45 amBoston Logan Intl

$692

Arajet

Sep 18

BOS12:15 pmBoston Logan Intl

14h 08m

1 stop

EZE3:23 amBuenos Aires Ministro Pistarini

Nov 10

EZE6:35 amBuenos Aires Ministro Pistarini

29h 10m

1 stop

BOS9:45 amBoston Logan Intl

$740

Delta flights from Boston to Buenos Aires

Our best Delta deals on Boston to Buenos Aires flight tickets

Delta

Nov 3

BOS7:15 amBoston Logan Intl

22h 25m

2 stops

AEP7:40 amBuenos Aires Jorge Newbery

Nov 6

AEP8:05 pmBuenos Aires Jorge Newbery

20h 28m

2 stops

BOS2:33 pmBoston Logan Intl

$1,018

Delta

Aug 16

BOS10:00 amBoston Logan Intl

14h 00m

1 stop

EZE1:00 amBuenos Aires Ministro Pistarini

Aug 23

EZE8:10 pmBuenos Aires Ministro Pistarini

14h 29m

1 stop

BOS9:39 amBoston Logan Intl

$1,241

Delta

Aug 15

BOS3:20 pmBoston Logan Intl

17h 20m

1 stop

EZE9:40 amBuenos Aires Ministro Pistarini

Aug 23

EZE8:10 pmBuenos Aires Ministro Pistarini

14h 29m

1 stop

BOS9:39 amBoston Logan Intl

$1,246

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Fri 9/11

12:15 pm-3:23 am

1 stop14h 08m

Buenos Aires Ministro Pistarini

Tue 11/10

6:35 am-9:45 am

1 stop29h 10m

$655

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Fri 9/11

12:15 pm-3:23 am

1 stop14h 08m

Buenos Aires Ministro Pistarini

Thu 9/24

9:45 am-10:45 am

1 stop26h 00m

$692

Quickest round-trip

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Sat 11/7

8:55 am-1:15 am

1 stop14h 20m

Buenos Aires Ministro Pistarini

Sat 11/21

5:00 pm-6:45 am

1 stop15h 45m

$843

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 11/11

1:35 pm-10:35 am

2 stops19h 00m

Buenos Aires Ministro Pistarini

Sat 11/21

5:00 pm-6:45 am

1 stop15h 45m

$848

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Fri 11/6

8:55 am-4:00 pm

1 stop29h 05m

Buenos Aires Ministro Pistarini

Fri 11/13

5:00 pm-6:45 am

1 stop15h 45m

$877

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 11/10

7:41 am-5:53 am

1 stop20h 12m

Buenos Aires Ministro Pistarini

Wed 11/18

5:16 am-10:01 pm

1 stop18h 45m

$880

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Tue 11/3

7:41 am-1:11 am

1 stop15h 30m

Buenos Aires Ministro Pistarini

Tue 11/17

5:16 am-10:01 pm

1 stop18h 45m

$880

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Thu 11/5

3:33 pm-3:00 am

2 stops33h 27m

Buenos Aires Ministro Pistarini

Thu 11/12

2:05 am-6:45 am

1 stop30h 40m

$882

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 11/11

12:00 pm-10:05 am

1 stop20h 05m

Buenos Aires Ministro Pistarini

Sat 11/21

9:10 pm-9:16 am

1 stop14h 06m

$892

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Wed 11/11

1:03 pm-8:40 am

2 stops17h 37m

Buenos Aires Ministro Pistarini

Sat 11/21

9:40 pm-12:20 pm

2 stops16h 40m

$896

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Boston and Buenos Aires?

Prices are currently low for flights on this route.

Typical prices usually range from $1,008 to $1,369.
The lowest price recently found on this route was $608.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Boston is in September. Flight prices, which tend to average around $999, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Buenos Aires from Boston during February instead. Flights to Buenos Aires in February, while not as cheap as those in September, still average around $1,094.

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

You are more likely to see cheaper flights to Buenos Aires from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,233 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Boston for as low as $795 on momondo.

Can stopping save me money on Boston to Buenos Aires flights?

You could potentially save up to 83% on your flight if you consider stops on a Boston to Buenos Aires flight.

How have Boston to Buenos Aires flight prices changed over time?

As of August 2026, prices for Boston to Buenos Aires flights are approximately 49% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Buenos Aires (BOS to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Buenos Aires

Fastest flight time	14h 08m
Direct flights	None

The fastest flight from Boston to Buenos Aires takes 14h 08m

There are no direct flights from Boston to Buenos Aires. There are no popular flight routes from Boston to Buenos Aires.

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Frequently asked questions about flying from Boston to Buenos Aires

How far is Boston Logan Intl to Buenos Aires by plane?
Buenos Aires is 5374.8 mi away from Boston Logan Intl. A reasonable flight in good conditions will take 14h 08m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Buenos Aires?
Prices for flights from Boston Logan Intl Airport to Buenos Aires refresh daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Buenos Aires?
The number of operators available for flights from Boston Logan Intl Airport to Buenos Aires is 5 as of August 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Buenos Aires?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Boston to Buenos Aires?
Based on momondo bookings for flights between Boston and Buenos Aires, the leading airline is LATAM Airlines, making up 34% of the total bookings. Other popular airlines include American Airlines with 32%, Delta with 15%, and Copa Airlines with 9%.

Best airlines flying from Boston to Buenos Aires

Compare and see reviews for airlines that fly from Boston to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
LATAM Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 1,968 reviews	Search LATAM Airlines flights
Copa Airlines	PriceFrom $531	Free Cancellation	Rating 7.6 1,564 reviews	Search Copa Airlines flights
Delta	PriceFrom $811	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
United Airlines	PriceFrom $861	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,038	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Buenos Aires?

It is quick and easy to find Boston to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

Can I find flights from Boston to Buenos Aires with flexible booking policies on momondo?

momondo does allow users to show only those flights to Buenos Aires from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Buenos Aires?

momondo helps you find the best flight between Boston and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Fly into one of these airports located in Buenos Aires

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Cheap flights from Boston to Buenos Aires from $177

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Buenos Aires departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Arajet flights from Boston to Buenos Aires

Our best Arajet deals on Boston to Buenos Aires flight tickets

Delta flights from Boston to Buenos Aires

Our best Delta deals on Boston to Buenos Aires flight tickets

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How to get the cheapest flight ticket from Boston to Buenos Aires

What is the typical price of a round-trip flight between Boston and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

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

Can stopping save me money on Boston to Buenos Aires flights?

How have Boston to Buenos Aires flight prices changed over time?

What is the cheapest airline that flies from Boston Logan Intl to Buenos Aires?

What airlines fly to Buenos Aires?

Which airport is the most popular layover for flights between Boston and Buenos Aires?

Which layover airport offers the lowest fares from Boston to Buenos Aires?

Which layover airport has the shortest travel time from Boston to Buenos Aires?

Which layover airport has the shortest connection time from Boston to Buenos Aires?

When to book flights from Boston to Buenos Aires

Cheap Boston to Buenos Aires (BOS to BUE) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Buenos Aires

Best airlines flying from Boston to Buenos Aires

Compare and see reviews for airlines that fly from Boston to Buenos Aires with momondo

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires

Fly your favorite airline to Buenos Aires

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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