$150 Find Cheap Flights from Boston to South America

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to South America departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Boston to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima1 stop$500
Bogotá
Bogotá1 stop$320
Medellín
Medellín1 stop$341
Buenos Aires
Buenos Aires2 stops$732
Sao Paulo
Sao Paulononstop$504
Rio de Janeiro
Rio de Janeiro2 stops$569
Santiago
Santiago1 stop$512
Cartagena
Cartagena1 stop$255
Quito
Quito1 stop$315
Guayaquil
Guayaquil1 stop$470
Cali
Cali1 stop$285
Cusco
Cusco2 stops$729
Pereira
Pereira2 stops$417
Georgetown
Georgetown1 stop$399
Montevideo
Montevideo1 stop$640
Barranquilla
Barranquilla1 stop$358
Santa Marta
Santa Marta2 stops$471
Florianopolis
Florianopolis2 stops$619
Lima
Lima1 stop$500
Bogotá
Bogotá1 stop$320
Medellín
Medellín1 stop$341
Buenos Aires
Buenos Aires2 stops$732
Sao Paulo
Sao Paulononstop$504
Rio de Janeiro
Rio de Janeiro2 stops$569
Santiago
Santiago1 stop$512
Cartagena
Cartagena1 stop$255
Quito
Quito1 stop$315
Guayaquil
Guayaquil1 stop$470
Cali
Cali1 stop$285
Cusco
Cusco2 stops$729
Pereira
Pereira2 stops$417
Georgetown
Georgetown1 stop$399
Montevideo
Montevideo1 stop$640
Barranquilla
Barranquilla1 stop$358
Santa Marta
Santa Marta2 stops$471
Florianopolis
Florianopolis2 stops$619

Book Cheap Boston to South America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to South America that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to South America

Mon, Dec 1 - Sat, Dec 6
Spirit Airlines Logo
5:45 pm - 1:00 pmBOS-BOG
19h 15m1 stop
Spirit Airlines Logo
3:05 pm - 11:57 pmBOG-BOS
8h 52m1 stop
$320Spirit Airlines
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Sat, Nov 15 - Sat, Nov 22
Spirit Airlines Logo
1:36 pm - 2:10 pmBOS-BOG
24h 34m2 stops
Spirit Airlines Logo
3:17 pm - 11:53 pmBOG-BOS
8h 36m1 stop
$329Spirit Airlines
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Sun, Nov 30 - Sat, Dec 13
Copa Airlines Logo
2:44 pm - 9:51 amBOS-MDE
19h 07m1 stop
Copa Airlines Logo
10:46 am - 10:40 pmMDE-BOS
11h 54m1 stop
$363Copa Airlines
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Sun, Mar 22 - Sun, Mar 29
American Airlines Logo
11:00 am - 7:55 pmBOS-MDE
9h 55m1 stop
American Airlines Logo
12:20 am - 10:02 amMDE-BOS
8h 42m1 stop
$383American Airlines
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Sun, Nov 2 - Sun, Nov 16
Copa Airlines Logo
2:44 pm - 9:51 amBOS-MDE
19h 07m1 stop
Copa Airlines Logo
9:17 am - 10:03 pmMDE-BOS
12h 46m1 stop
$391Copa Airlines
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Mon, Dec 1 - Fri, Dec 5
LATAM Airlines Logo
8:55 am - 8:55 pmBOS-GRU
10h 00mnonstop
LATAM Airlines Logo
10:55 pm - 10:15 amGRU-BOS
13h 20m1 stop
$504LATAM Airlines
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Wed, Nov 12 - Sat, Nov 22
LATAM Airlines Logo
8:55 am - 8:55 pmBOS-GRU
10h 00mnonstop
LATAM Airlines Logo
10:50 pm - 2:59 pmGRU-BOS
18h 09m1 stop
$505LATAM Airlines
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Fri, Nov 14 - Thu, Nov 27
Delta Logo
8:55 am - 8:55 pmBOS-GRU
10h 00mnonstop
Delta Logo
10:40 pm - 6:35 amGRU-BOS
9h 55mnonstop
$516Delta
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Sun, Nov 16 - Tue, Nov 25
Delta Logo
5:00 pm - 9:55 amBOS-GRU
14h 55m1 stop
Delta Logo
10:40 pm - 6:35 amGRU-BOS
9h 55mnonstop
$520Delta
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Wed, Dec 3 - Wed, Feb 18
American Airlines Logo
2:24 pm - 8:50 amBOS-GRU
16h 26m2 stops
American Airlines Logo
10:35 pm - 10:13 amGRU-BOS
13h 38m1 stop
$533American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to South America flights

Get data-powered insights and trends into flights from Boston to South America to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boston to South America flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to South America from Boston found in the last 72 hours was to Bogotá, at $338 round-trip. The most popular route is from Boston (BOS) to Sao Paulo Guarulhos Intl Airport (GRU), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $504.

Can I save money by flying with a layover from Boston to South America?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $472, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to South America?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to South America, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to South America is September, when tickets cost $522 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $919 and $712 respectively.

What’s the cheapest day of the week to fly from Boston to South America?

The average price of all round-trip flights from Boston to South America clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to South America, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from South America, Tuesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from Boston to South America?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to South America, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to South America, you should book around 2 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$150
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 39% increase in price.
Flight from Boston to Medellín Jose Maria Cordova Intl

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from Boston to South America?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to South America.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to South America?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to South America is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to South America?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boston to South America with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to South America?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to South America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South America?

    The cheapest time of day to fly to South America is generally at night, when round-trip flights cost $508 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to South America is generally in the morning, which is peak travel time and where the average cost of a ticket is $594.

Reviews of the top 5 airlines serving from Boston to South America

 
Need help choosing which airline to fly with from Boston to South America? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7981 reviews
8.5Crew
7.9Comfort
8.2Boarding
7.3Food
7.9Entertainment
Airline reviews

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

6.0 GoodDavid, Oct 2025JFK - KEF
Read more Delta reviews

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

Great experience with a crew always thinking in the passenger

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

Usb plugs for charging your phone does not work in every flight. uncomfortable chairs even in higher categories.

Luggage lost and nowhere to be found, no response from either airline regarding my bag

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

No food, terms when selling are not clear. To pricy for the service in general

The incoming plane was late and no information was shared. They even announced we would board in 10 muntes 40 minutes prior to the plane arriving, and the website said until takeoff that we had taken off an hour earlier

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

Flight to Bogotá delayed by 3 h Missed connection from Bogotá to Guayaquil. Avianca unable to bring us to Baltra on time Overall delay 36h. We missed boat departure from galagos. Overall 10 day trip needed to be cancelled. Avianca was completely un-professional.

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