Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Boston to Buenos Aires
The cheapest flights right now
Boston – Buenos Aires
Outbound – Nov 16, 2026
1 stop
15h 10m PTY
Return – Nov 30, 2026
1 stop
14h 51m PTY
$928
yesterday
Boston – Buenos Aires
Outbound – Dec 5, 2026
1 stop
13h 55m MIA
Return – Dec 17, 2026
1 stop
14h 49m MIA
$966
today
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$753
Average price of a round trip
$831
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
19h49
A flight from Boston to Buenos Aires takes on average 19h49.
Best time
August
According to user searches, the ideal month to go to Buenos Aires is August.
Tips for finding a cheap flight from Boston to Buenos Aires
Check out our tips for booking your flight to Buenos Aires (Argentina) from Boston (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is October, with an average flight ticket price of $780 (calculation over the last two years). The most touristic season corresponds to the months of October, November and June.
For the cheapest flights, it is advisable to buy your ticket at least 50 days before the departure date.
The airline offering the cheapest flight tickets is LATAM Airlines Group. A ticket from the airline LATAM Airlines Group to Buenos Aires costs on average $834.
The airlines that offer the most flights are .
Price of flight tickets from Boston to Buenos Aires
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $753 to $1095
- The average price of a flight ticket is about $831
- Prices are lowest for stays in the month of October
- The month in which booking a ticket is cheaper is: November
info departure city :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :
Boston is a city in the country USA, the time zone is [[timezone]]. In Boston, it is currently {fromLocalTime}, the temperature is on average 14°C, with a minimum of 10°C and a maximum of 17°C.
The city of Boston has 1 airport(s): Boston-Logan
destination info :
Buenos Aires, Argentina
airports :
Jorge Newbery Airfield (AEP)
Ministro Pistarini International Airport (EZE)
local time :
Buenos Aires is in the country Argentina, the time zone is [[timezone]]. In Buenos Aires, it is currently {toLocalTime}, the temperature is on average 14°C, with a minimum of 13°C and a maximum of 17°C.
The city of Buenos Aires (BUE) has 2 airport(s): Jorge Newbery and Ministro Pistarini
Useful info about Buenos Aires
What is the least touristic period to go to Buenos Aires?
If you want to visit Buenos Aires during the least touristic period, choose the month of August.
What is the most popular time to travel to Buenos Aires?
In Buenos Aires, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Boston to Buenos Aires?
According to our data, it is recommended to book your flight 50 days before your departure. If you book your flight ticket 8 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Boston to Buenos Aires is Thursday.
What are the arrival and destination airports when traveling between Boston and Buenos Aires?
When you leave, you can leave from Boston-Logan, and you will arrive at Jorge Newbery or Ministro Pistarini.
How to reach Boston airport from the city centre?
This information is not available at this time.
Are there other means of transportation to go from Boston to Buenos Aires?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Boston and Buenos Aires?
In summer, the average temperature is 12°C in Buenos Aires and 22°C in Boston. The average rainfall in summer is 75 mm in Buenos Aires and 106 mm in Boston. In summer, it is warmer in Boston and it rains less in Buenos Aires. In winter, it is colder in Buenos Aires and it rains more in Boston.
