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Cheap flights from Boston to South America from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to South America departing on 2/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
5:40 am - 1:13 pm
BOS
-
MDE
8h 33m
1 stop
Spirit Airlines Logo
2:10 pm - 11:59 pm
MDE
-
BOS
8h 49m
1 stop
$265Spirit Airlines
Tue, May 19 - Wed, May 27
Spirit Airlines Logo
5:40 am - 1:13 pm
BOS
-
MDE
8h 33m
1 stop
Spirit Airlines Logo
2:10 pm - 11:59 pm
MDE
-
BOS
8h 49m
1 stop
$266Spirit Airlines
Tue, May 5 - Tue, May 19
Spirit Airlines Logo
5:49 pm - 12:21 am
BOS
-
MDE
7h 32m
1 stop
Spirit Airlines Logo
2:10 pm - 11:59 pm
MDE
-
BOS
8h 49m
1 stop
$268Spirit Airlines
Wed, Apr 8 - Wed, Apr 29
Spirit Airlines Logo
5:40 am - 1:13 pm
BOS
-
MDE
8h 33m
1 stop
Spirit Airlines Logo
2:10 pm - 11:59 pm
MDE
-
BOS
8h 49m
1 stop
$269Spirit Airlines
Wed, Apr 15 - Sun, Apr 19
Delta Logo
9:55 am - 8:40 pm
BOS
-
GRU
9h 45mnonstop
Delta Logo
10:45 pm - 7:35 am
GRU
-
BOS
9h 50mnonstop
$458Delta
Fri, May 22 - Sun, May 31
Copa Airlines Logo
8:43 am - 5:55 am
BOS
-
GRU
20h 12m
1 stop
Copa Airlines Logo
5:25 am - 11:08 pm
GRU
-
BOS
18h 43m
1 stop
$460Copa Airlines
Wed, Apr 1 - Sun, May 10
American Airlines Logo
7:00 pm - 2:25 pm
BOS
-
CGH
17h 25m
2 stops
American Airlines Logo
8:00 pm - 11:25 am
CGH
-
BOS
16h 25m
2 stops
$520American Airlines
Sun, Mar 1 - Sun, Mar 8
Copa Airlines Logo
8:44 am - 12:35 am
BOS
-
CNF
14h 51m
1 stop
Copa Airlines Logo
1:35 am - 11:10 pm
CNF
-
BOS
22h 35m
1 stop
$633Copa Airlines
Thu, Mar 19 - Mon, Mar 30
American Airlines Logo
3:49 pm - 10:30 am
BOS
-
CNF
17h 41m
2 stops
American Airlines Logo
6:20 pm - 11:25 am
CNF
-
BOS
18h 05m
2 stops
$644American Airlines
Wed, Mar 18 - Wed, Mar 25
LATAM Airlines Logo
8:25 pm - 9:00 am
BOS
-
EZE
34h 35m
1 stop
LATAM Airlines Logo
2:25 am - 6:35 am
EZE
-
BOS
30h 10m
1 stop
$783LATAM Airlines
Mon, Feb 23 - Wed, Feb 25

Spirit Airlines flights from Boston to South America

Our best Spirit Airlines deals on Boston to South America flight tickets
Spirit Airlines
May 19
BOS5:40 amBoston Logan Intl
8h 33m
1 stop
MDE1:13 pmMedellín Jose Maria Cordova Intl
May 27
MDE2:10 pmMedellín Jose Maria Cordova Intl
8h 49m
1 stop
BOS11:59 pmBoston Logan Intl
$265
Spirit Airlines
May 5
BOS5:40 amBoston Logan Intl
8h 33m
1 stop
MDE1:13 pmMedellín Jose Maria Cordova Intl
May 19
MDE2:10 pmMedellín Jose Maria Cordova Intl
8h 49m
1 stop
BOS11:59 pmBoston Logan Intl
$266
Spirit Airlines
Apr 8
BOS5:49 pmBoston Logan Intl
7h 32m
1 stop
MDE12:21 amMedellín Jose Maria Cordova Intl
Apr 19
MDE2:10 pmMedellín Jose Maria Cordova Intl
8h 49m
1 stop
BOS11:59 pmBoston Logan Intl
$268

Copa Airlines flights from Boston to South America

Our best Copa Airlines deals on Boston to South America flight tickets
Copa Airlines
Jan 30
BOS3:07 pmBoston Logan Intl
18h 18m
1 stop
BOG9:25 amBogotá El Dorado
Feb 1
BOG4:45 amBogotá El Dorado
17h 18m
1 stop
BOS10:03 pmBoston Logan Intl
$348
Copa Airlines
Feb 1
BOS7:31 amBoston Logan Intl
15h 17m
1 stop
MDE10:48 pmMedellín Jose Maria Cordova Intl
Feb 6
MDE6:25 amMedellín Jose Maria Cordova Intl
15h 38m
1 stop
BOS10:03 pmBoston Logan Intl
$364
Copa Airlines
Feb 1
BOS7:31 amBoston Logan Intl
30h 44m
1 stop
MDE2:15 pmMedellín Jose Maria Cordova Intl
Feb 8
MDE3:15 pmMedellín Jose Maria Cordova Intl
30h 48m
1 stop
BOS10:03 pmBoston Logan Intl
$386

momondo Fare Finder

 
Customize your flight search to find flights from Boston to South America that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Boston to South America that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Tue 5/19

5:40 am-1:13 pm

1 stop8h 33m

Medellín Jose Maria Cordova Intl

Wed 5/27

2:10 pm-11:59 pm

1 stop8h 49m

$265

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Tue 5/5

5:40 am-1:13 pm

1 stop8h 33m

Medellín Jose Maria Cordova Intl

Tue 5/19

2:10 pm-11:59 pm

1 stop8h 49m

$266

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 4/8

5:49 pm-12:21 am

1 stop7h 32m

Medellín Jose Maria Cordova Intl

Wed 4/29

2:10 pm-11:59 pm

1 stop8h 49m

$268

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 4/15

5:40 am-1:13 pm

1 stop8h 33m

Medellín Jose Maria Cordova Intl

Sun 4/19

2:10 pm-11:59 pm

1 stop8h 49m

$269

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Fri 5/22

9:55 am-8:40 pm

Nonstop9h 45m

Sao Paulo Guarulhos Intl

Sun 5/31

10:45 pm-7:35 am

Nonstop9h 50m

$458

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 4/1

8:43 am-5:55 am

1 stop20h 12m

Sao Paulo Guarulhos Intl

Sun 5/10

5:25 am-11:08 pm

1 stop18h 43m

$460

BostonSao Paulo

BOS - CGH

BOSCGH

Boston Logan Intl

Sun 3/1

7:00 pm-2:25 pm

2 stops17h 25m

Sao Paulo Congonhas

Sun 3/8

8:00 pm-11:25 am

2 stops16h 25m

$520

BostonBelo Horizonte

BOS - CNF

BOSCNF

Boston Logan Intl

Thu 3/19

8:44 am-12:35 am

1 stop14h 51m

Belo Horizonte Tancredo Neves Intl

Mon 3/30

1:35 am-11:10 pm

1 stop22h 35m

$633

BostonBelo Horizonte

BOS - CNF

BOSCNF

Boston Logan Intl

Wed 3/18

3:49 pm-10:30 am

2 stops17h 41m

Belo Horizonte Tancredo Neves Intl

Wed 3/25

6:20 pm-11:25 am

2 stops18h 05m

$644

BostonBuenos Aires

BOS - EZE

BOSEZE

Boston Logan Intl

Mon 2/23

8:25 pm-9:00 am

1 stop34h 35m

Buenos Aires Ministro Pistarini

Wed 2/25

2:25 am-6:35 am

1 stop30h 10m

$783

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to South America

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to South America?

In general, September 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 $528. If you aren’t able to travel during the month of September, then book flights to South America from Boston during October instead. Flights to South America in October, while not as cheap as those in September, still average around $558.

What is the cheapest Boston Logan Intl to South America flight route?

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

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

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 $626 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 $523 on momondo.

What cabin class options are available on Boston Logan Intl to South America flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to South America flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to South America flights?

You could potentially save up to 37% on your flight if you consider stops on a Boston to South America flight.

Cheap Boston to South America flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to South America

Best Price Found

$214

Fastest flight time

7h 10m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun

Airports in South America

463 airports
The best one-way flight to South America from Boston in the past 72 hours is $214. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $413.
The fastest flight from Boston to South America takes 7h 10m
Direct flights go from Boston to South America on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 463 airports in South America. From Boston there are direct flights to Bogotá El Dorado (BOG), Sao Paulo Guarulhos Intl (GRU).
Search flight deals

  • When did momondo last update prices for flights from Boston Logan Intl Airport to South America?

    Prices for flights from Boston Logan Intl Airport to South America are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to South America?

  • How old do you have to be to fly from Boston Logan Intl Airport to South America?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to South America.

  • What documentation or ID do you need to fly to South America?

    The travel and health documents you'll need for your trip to South America may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South America. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to South America?

Best airlines flying from Boston to South America

Compare and see reviews for airlines that fly from Boston to South America with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $117Free CancellationRating
7.9
8,127 reviews
Search Delta flights
ArajetPriceFrom $137Free CancellationRating
6.6
43 reviews
Search Arajet flights
AviancaPriceFrom $162Free CancellationRating
6.6
2,492 reviews
Search Avianca flights
GOLPriceFrom $166Free CancellationRating
7.3
1,160 reviews
Search GOL flights
Copa AirlinesPriceFrom $206Free CancellationRating
7.5
1,560 reviews
Search Copa Airlines flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,667 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $253Free CancellationRating
6.3
8,394 reviews
Search Spirit Airlines flights
LATAM AirlinesPriceFrom $262Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
JetBluePriceFrom $274Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to South America?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to South America. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to South America with flexible booking policies on momondo?

Flights from Boston to South America with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to South America?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to South America.

I’m not ready to book a flight from Boston to South America right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to South America flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your South America trip

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Find better results for your trip to South America

Popular cities in South America

Popular flights according to clicks in the last 7 days on momondo
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Flights to Guayaquilfrom $160
Flights to Califrom $168