Cheap flights from Boston to South America from $163

In general, March is the cheapest month to fly from Boston to South America. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $633. If you aren’t able to travel during the month of March, then book flights to South America from Boston during May instead. Flights to South America in May, while not as cheap as those in March, still average around $676.

Fly from Boston Logan Intl to Bogotá El Dorado for the best Boston Logan Intl - South America flight prices

You are more likely to see cheaper flights to South America from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to South America for around $645 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South America from Boston for as low as $557 on momondo.

There are 3 cabin classes available to choose from on Boston to South America flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

American Airlines, Copa Airlines, and United Airlines are the most popular carriers operating from Boston Logan Intl to South America

Copa Airlines, LATAM Airlines and American Airlines are the top three most popular airlines that fly to South America from Boston according to our data. Copa Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to South America. Keep in mind that there are 10 different airlines that fly to South America on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Boston and South America have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Avianca have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

As of October 2026, 1 flights take off from Boston and land in South America each day. The most common flight departure time for this route is 10:00AM, with 100% of daily flights taking off at noon.

As of October 2026, there are 12 flights per week flying from Boston to South America. The most common day of the week flights depart is Thu, with 25% of flights taking off on this day.