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Find cheap flights from Boston to South America from $104

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 10/1. 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 7/10
Wed 7/17

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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
Bogotá1 stop$265
Buenos Aires
Buenos Aires2 stops$849
Medellín
Medellín1 stop$319
Sao Paulo
Sao Paulononstop$543
Cartagena
Cartagena1 stop$275
Santiago
Santiago3 stops$621
Rio de Janeiro
Rio de Janeiro1 stop$710
Quito
Quito1 stop$388
Guayaquil
Guayaquil1 stop$342
Cali
Cali2 stops$412
Cusco
Cusco2 stops$571
Pereira
Pereira1 stop$371
Barranquilla
Barranquilla1 stop$320
Montevideo
Montevideo2 stops$805
Caracas
Caracas2 stops$1,021
Santa Marta
Santa Marta2 stops$408

Good to know

Low season

September

High season

December

Cheapest flight

$104
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 48% increase in price.
Flight from Boston to Bogotá

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 13% 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 10295 reviews
7.4Food
8.6Crew
8.2Boarding
7.9Comfort
8.0Entertainment
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

The seats had plenty of leg room and the staff were very nice.

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!!"

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.

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Book cheap flights from Boston to South America

Recent round-trip flight deals

8/27Tue
1 stopSpirit Airlines
7h 58mBOS-BOG
9/5Thu
1 stopSpirit Airlines
9h 41mBOG-BOS
$265
9/17Tue
1 stopSpirit Airlines
7h 06mBOS-CTG
9/24Tue
1 stopSpirit Airlines
10h 25mCTG-BOS
$275
9/17Tue
1 stopLATAM Airlines
8h 10mBOS-CTG
9/24Tue
2 stopsLATAM Airlines
15h 43mCTG-BOS
$315
9/5Thu
2 stopsLATAM Airlines
19h 18mBOS-CTG
9/9Mon
2 stopsLATAM Airlines
25h 30mCTG-BOS
$321
6/18Tue
1 stopCopa Airlines
17h 57mBOS-MDE
6/26Wed
1 stopCopa Airlines
8h 21mMDE-BOS
$367
6/17Mon
1 stopCopa Airlines
17h 57mBOS-MDE
6/25Tue
1 stopCopa Airlines
18h 58mMDE-BOS
$381
10/19Sat
2 stopsAmerican Airlines
18h 13mBOS-CTG
10/23Wed
2 stopsAmerican Airlines
17h 43mCTG-BOS
$388
9/13Fri
nonstopAvianca
6h 10mBOS-BOG
9/21Sat
nonstopAvianca
6h 20mBOG-BOS
$397
9/13Fri
nonstopAvianca
6h 10mBOS-BOG
9/15Sun
1 stopAvianca
9h 26mBOG-BOS
$398
10/19Sat
1 stopAmerican Airlines
20h 47mBOS-CTG
10/23Wed
1 stopAmerican Airlines
8h 11mCTG-BOS
$423

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Recent one-way flight deals

10/1Tue
1 stopSpirit Airlines
7h 58mBOS-BOG
$104
7/9Tue
1 stopSpirit Airlines
7h 10mBOS-CTG
$107
9/7Sat
2 stopsLATAM Airlines
15h 43mBOS-CTG
$148
6/17Mon
1 stopCopa Airlines
18h 09mBOS-MDE
$148
6/15Sat
1 stopAmerican Airlines
8h 14mBOS-MDE
$151
6/14Fri
1 stopAmerican Airlines
15h 32mBOS-MDE
$152
9/6Fri
2 stopsLATAM Airlines
23h 41mBOS-MDE
$157
9/11Wed
nonstopAvianca
6h 10mBOS-BOG
$179
9/10Tue
1 stopAvianca
13h 15mBOS-BOG
$180
6/26Wed
1 stopCopa Airlines
18h 01mBOS-CTG
$191

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Last minute flights from Boston to South America

Last minute flight, train and bus deals

6/11Tue
multi-stopCopa Airlines
18h 09mBOS-MDE
6/18Tue
multi-stopCopa Airlines
9h 46mMDE-BOS
$407
6/14Fri
multi-stopAmerican Airlines
15h 32mBOS-MDE
6/22Sat
multi-stopAmerican Airlines
17h 53mMDE-BOS
$428
6/11Tue
multi-stopLATAM Airlines
27h 05mBOS-LIM
6/22Sat
multi-stopLATAM Airlines
16h 07mLIM-BOS
$508
6/13Thu
multi-stopLATAM Airlines
27h 20mBOS-LIM
6/19Wed
multi-stopLATAM Airlines
33h 36mLIM-BOS
$535
6/11Tue
nonstopAvianca
6h 10mBOS-BOG
6/19Wed
nonstopAvianca
6h 20mBOG-BOS
$583
6/11Tue
nonstopAvianca
6h 10mBOS-BOG
6/17Mon
nonstopAvianca
6h 20mBOG-BOS
$651
6/13Thu
multi-stopDelta
16h 00mBOS-LIM
6/25Tue
multi-stopDelta
21h 30mLIM-BOS
$919
6/11Tue
multi-stopAzul
47h 05mBOS-CNF
7/20Sat
multi-stopAzul
37h 02mCNF-BOS
$1,107
6/14Fri
multi-stopDelta
24h 35mBOS-EZE
6/21Fri
multi-stopDelta
28h 36mEZE-BOS
$1,169
6/12Wed
multi-stopAzul
36h 55mBOS-CNF
7/10Wed
multi-stopAzul
48h 17mCNF-BOS
$1,226

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Boston - South America Flights

Departure:

Boston (BOS)United States

Return flight deals:

South America - Boston

Cabin classes:

$839
$2,536
$336