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Find cheap flights from Boston to South America from $124

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 6/1. 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.
1 adult
0 bags
Wed 6/12
Wed 6/19

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Best South America Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lima
Lima1 stop$421
Bogotá
Bogotá3 stops$351
Buenos Aires
Buenos Aires3 stops$891
Medellín
Medellín1 stop$288
Sao Paulo
Sao Paulo1 stop$626
Cartagena
Cartagena2 stops$352
Santiago
Santiago3 stops$518
Rio de Janeiro
Rio de Janeiro1 stop$637
Quito
Quito1 stop$375
Guayaquil
Guayaquil1 stop$346
Cali
Cali1 stop$272
Cusco
Cusco2 stops$608
Pereira
Pereira2 stops$385
Barranquilla
Barranquilla1 stop$315
Montevideo
Montevideo2 stops$819
Santa Marta
Santa Marta2 stops$418

Good to know

Low season

September

High season

December

Cheapest flight

$124
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 47% 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 to South America from Boston 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 to South America with an airline and back to Boston 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 to South America from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to South America

  • Morning departure is around 21% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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.
8.0
DeltaOverall score based on 10736 reviews
7.9Comfort
8.6Crew
8.0Entertainment
7.4Food
8.2Boarding
Airline reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

2.0 MediocreDevan, May 2024AUS - BOS
Read more about Delta reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The plane was FREEZING SEATS UNCOMFORTABLE Otherwise smooth Thank you

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Copa performed as expected for the amount of money I was willing to spend for the flight; it wasn’t exceptional but it was not bad in any way either. The crew was good; friendly and straightforward. The food was airplane food, so no expectations there and the entertainment was lacking but that was my fault for owning an IPhone with a charging port that’s not compatible with the rest of the world. I’d fly Copa again.

Left my bags in origin city on a business class ticket , spent about 2-3 days in the same clothes plus the flight .

the planes are not modern there are no phone chargers

As usual, the flight with normal legroom was not very comfortable, but the second flight was much better because we had paid for extra legroom. It was very nice to check our bags without an extra fee.

LOCKED MY BAG WITHOUT CONSENT. Had to have my zippers cut upon arrival in Costa Rica.

Pros: "The seats in economy were confortable. The best thing was Copa gave us seats in the second line and my family traveled together."
Cons: "Coffe service could better the experience"
Pros: "The crew was very interested on help and attentive with the passengers. But the seat wasn't comfortable. The design of the cushion is not the best to be seating"
Pros: "You were on time, that is the most important thing in a fly"
Cons: "You could improve your entertainment, you are not a cheap company"
Pros: "That there was seltzer"
Cons: "The management of preparing the flight and plane so that it was ready for the trip!!"
Pros: "Copa was convenient and easy. Very easy boarding process and I appreciated the day flight."
Cons: "This is a business class that is equivalent to a US carrier domestic first class. Good seats, not lay flat but wide on my 737-800. The food and service emulated say American Airlines Domestic 1C as well. Everything was just good enough, and much cheaper that international business on the majors."

Everything was as you would expect in coach - fine. Flight was close to on time.

It was confusing because I got a notification that my gate was changed when in reality it wasn’t

Everthing ok , crew very nice but but we had a bad experience with the wheel chair we had to wait too much for the chair, my husband couldn’t walk and he was in lot of pain , LATAM has to take care of that

No air in the middle rows. Had a hard time breathing. Was dying of heat.

Horrific checkin procedure with neither Delta nor Latam figuring out how to check me in. 4 hrs on customer support with both and both airlines pointing to each other who should do checking. I was not checked in until morning of flight, which for international flight is concerning.

It was ok for the most part, it is missing something

It was a good experience, the flight was a little too long & the food was ok

Hostile flight attendants. Second flight with Jose so much better. Arrived 1/2 hour early. Thanks.

We had 2 delayed LATAM flights in our trip. We were only given one coffee for 5 hours delay. Also when we were boarding the crew wanted to charge us for our allowed carry on luggage. I got a bit angry and they finally didn’t charge anything. Not flying with LATAM again.

the flight from Boston to Curitiba was on time actually 30 minutes earlier. latam was not able to unload the luggage for custom checkup in Sao Paulo ii took two and half hours . i missed the flight to Curitiba spend the night in hotel and then flying in the morning to Curitiba

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

I don't think anyone actually reads these comments, so I won't spend much time on this submission. If you want to talk, you know how to reach me. The D/FW manager of Avianca (self-identified), Juan Calderon, insisted I buy an onward ticket from San Salvador even though I have diplomatic status in El Salvador and live here. It cost me $1,393 and Mr Calderon would not let me make the ticked flexible so I could get a refund. He went out of his way to be rude to me. He gave me seat 32K -- windowless window seat in the last row and did not offer to let me upgrade even though there were plenty of seats. I have flown well over a million miles in my life and this is the worst experience I have ever had. I would like a refund on the ticket I was forced to buy. Just awful!

This is the Spirit of Latino travel. And don’t even get me started on customer service.

Awful. I checked in online and there was no option to pay for baggage, at the airport when I checked in my baggage was received and Iwas not charged. When I got to LA during the boarding process I was told I didn't pay for baggage, the crew resolved I was let in the plane. When I got to my final destination my baggage was not there. It took me two days to receive my baggage. Bad service ever!

There was no food or drink service, couldn’t even get a glass of water for free. It was a long and expensive flight to not offer food or beverage on the plane.

It is better at the jfk than my home country. It was very easy and everything was on time.

There is no food. There is no in-inflight entertainment. The seats are cardboard. The airline is a living hellscape.

My experience was amazing! They helped my elderly mother board on early through a wheelchair and were accommodating to have us sit together since our seats were in different locations. When landing at the airport in GUA they were very helpful with full of hospitality.

No complimentary snacks food, beverage (not even water), pillow and blanket on a 6 hours long flight (including economy comfort). A low form of nickeling an diming. Lost a recurring passanger over a soda. Avianca never again.

Flight departure late. Got late in Colombia making us take a different flight next day. Avianca airport crew messed up my ticket so when a I got in Brazil I didn’t have a ticket for my destination. Had to buy a new ticket out of my pocket.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

Book cheap flights from Boston to South America

Recent round-trip flight deals

6/1Sat
1 stopSpirit Airlines
13h 14mBOS-MDE
6/6Thu
1 stopSpirit Airlines
8h 20mMDE-BOS
$288
6/4Tue
1 stopSpirit Airlines
7h 36mBOS-MDE
6/11Tue
1 stopSpirit Airlines
20h 31mMDE-BOS
$289
6/11Tue
1 stopCopa Airlines
18h 09mBOS-MDE
6/18Tue
1 stopCopa Airlines
9h 46mMDE-BOS
$295
6/1Sat
1 stopAmerican Airlines
17h 30mBOS-MDE
6/7Fri
1 stopAmerican Airlines
9h 10mMDE-BOS
$299
6/19Wed
1 stopLATAM Airlines
14h 56mBOS-MDE
6/24Mon
1 stopLATAM Airlines
10h 01mMDE-BOS
$321
6/12Wed
1 stopCopa Airlines
18h 09mBOS-MDE
8/7Wed
1 stopCopa Airlines
8h 51mMDE-BOS
$323
5/29Wed
2 stopsAmerican Airlines
9h 58mBOS-MDE
6/6Thu
1 stopAmerican Airlines
10h 03mMDE-BOS
$331
6/15Sat
1 stopLATAM Airlines
30h 56mBOS-MDE
6/18Tue
1 stopLATAM Airlines
10h 01mMDE-BOS
$342
6/9Sun
2 stopsAvianca
13h 24mBOS-BOG
6/17Mon
2 stopsAvianca
15h 20mBOG-BOS
$394
6/9Sun
2 stopsAvianca
13h 24mBOS-BOG
6/17Mon
nonstopAvianca
6h 20mBOG-BOS
$400

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Recent one-way flight deals

6/1Sat
2 stopsSpirit Airlines
28h 38mBOS-MDE
$124
5/30Thu
2 stops
17h 03mBOS-MDE
$126
5/20Mon
1 stopCopa Airlines
18h 10mBOS-MDE
$134
5/30Thu
1 stopCopa Airlines
18h 10mBOS-MDE
$144
6/5Wed
2 stopsAmerican Airlines
13h 14mBOS-MDE
$147
5/19Sun
1 stopAmerican Airlines
18h 10mBOS-MDE
$173
5/28Tue
nonstopAvianca
6h 10mBOS-BOG
$184
6/1Sat
2 stopsLATAM Airlines
24h 29mBOS-MDE
$189
7/28Sun
1 stopLATAM Airlines
9h 06mBOS-BOG
$193
5/29Wed
nonstopAvianca
6h 10mBOS-BOG
$199

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Last minute flights from Boston to South America

Last minute flight, train and bus deals

5/15Wed
multi-stopCopa Airlines
17h 58mBOS-MDE
5/22Wed
multi-stopCopa Airlines
18h 59mMDE-BOS
$337
5/15Wed
multi-stopCopa Airlines
18h 52mBOS-BOG
5/21Tue
multi-stopCopa Airlines
19h 09mBOG-BOS
$391
5/17Fri
multi-stopLATAM Airlines
30h 31mBOS-MDE
5/24Fri
multi-stopLATAM Airlines
9h 21mMDE-BOS
$406
5/18Sat
multi-stopLATAM Airlines
15h 16mBOS-MDE
5/25Sat
multi-stopLATAM Airlines
21h 15mMDE-BOS
$414
5/16Thu
multi-stopAmerican Airlines
19h 11mBOS-MDE
5/23Thu
multi-stopAmerican Airlines
17h 10mMDE-BOS
$421
5/18Sat
multi-stopAmerican Airlines
21h 23mBOS-CTG
5/25Sat
multi-stopAmerican Airlines
8h 13mCTG-BOS
$428
5/15Wed
multi-stopDelta
13h 35mBOS-LIM
5/24Fri
multi-stopDelta
17h 06mLIM-BOS
$463
5/18Sat
multi-stopAvianca
8h 31mBOS-MDE
5/30Thu
multi-stopAvianca
11h 40mMDE-BOS
$464
5/14Tue
multi-stopDelta
25h 50mBOS-LIM
5/23Thu
multi-stopDelta
14h 17mLIM-BOS
$469
5/17Fri
multi-stopAvianca
10h 05mBOS-BOG
6/1Sat
multi-stopAvianca
10h 31mBOG-BOS
$498

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Boston - South America Flights

Departure:

Boston (BOS)United States

Return flight deals:

South America - Boston

Cabin classes:

$835
$2,536
$320