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Cheap flights from Boston to South America from $98

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 2/1. 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

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Spirit Airlines Logo
5:34 am - 1:10 pm
BOS
-
CTG
7h 36m1 stop
Spirit Airlines Logo
2:21 pm - 11:57 pm
CTG
-
BOS
9h 36m1 stop
$209Spirit Airlines
Tue, Feb 3 - Wed, Feb 11
Spirit Airlines Logo
5:34 am - 1:10 pm
BOS
-
CTG
7h 36m1 stop
Spirit Airlines Logo
2:21 pm - 11:57 pm
CTG
-
BOS
9h 36m1 stop
$213Spirit Airlines
Tue, Feb 3 - Wed, Feb 11
Avianca Logo
3:25 pm - 10:55 am
BOS
-
MDE
19h 30m2 stops
Avianca Logo
5:35 pm - 6:35 am
MDE
-
BOS
13h 00m1 stop
$301Avianca
Wed, Jan 28 - Mon, Feb 2
Avianca Logo
7:55 am - 4:50 pm
BOS
-
MDE
8h 55m1 stop
Avianca Logo
7:00 pm - 6:35 am
MDE
-
BOS
11h 35m1 stop
$302Avianca
Sat, Jan 24 - Mon, Feb 23
Copa Airlines Logo
7:31 am - 8:35 pm
BOS
-
MDE
13h 04m1 stop
Copa Airlines Logo
12:42 pm - 10:03 pm
MDE
-
BOS
9h 21m1 stop
$310Copa Airlines
Wed, Feb 4 - Wed, Feb 11
Copa Airlines Logo
3:05 pm - 6:30 am
BOS
-
GRU
13h 25m1 stop
Copa Airlines Logo
5:25 am - 11:10 pm
GRU
-
BOS
18h 45m1 stop
$488Copa Airlines
Sun, Mar 1 - Sun, Mar 15
American Airlines Logo
1:00 pm - 6:05 am
BOS
-
GRU
15h 05m1 stop
American Airlines Logo
10:35 pm - 11:25 am
GRU
-
BOS
13h 50m1 stop
$494American Airlines
Mon, Mar 2 - Sun, Mar 15
American Airlines Logo
12:45 pm - 6:20 am
BOS
-
GRU
16h 35m1 stop
American Airlines Logo
10:25 pm - 3:16 pm
GRU
-
BOS
17h 51m1 stop
$501American Airlines
Mon, Mar 16 - Mon, Mar 30
LATAM Airlines Logo
8:55 am - 7:15 am
BOS
-
SDU
20h 20m1 stop
LATAM Airlines Logo
4:50 pm - 6:35 am
SDU
-
BOS
15h 45m1 stop
$592LATAM Airlines
Thu, Jan 22 - Wed, Feb 4
LATAM Airlines Logo
8:55 am - 9:35 am
BOS
-
SDU
22h 40m1 stop
LATAM Airlines Logo
2:00 pm - 7:35 am
SDU
-
BOS
18h 35m1 stop
$608LATAM Airlines
Fri, Mar 6 - Sun, Mar 15

Air Canada flights from Boston to South America

Our best Air Canada deals on Boston to South America flight tickets
Air Canada
Feb 11
BOS5:30 amBoston Logan Intl
20h 45m
1 stop
LIM2:15 amLima J Chavez Intl
Feb 15
LIM8:05 amLima J Chavez Intl
25h 27m
2 stops
BOS9:32 amBoston Logan Intl
$506
Air Canada
Jan 20
BOS6:55 pmBoston Logan Intl
31h 20m
2 stops
LIM2:15 amLima J Chavez Intl
Feb 4
LIM8:05 amLima J Chavez Intl
38h 32m
2 stops
BOS10:37 pmBoston Logan Intl
$524
Air Canada
Jan 20
BOS10:45 amBoston Logan Intl
39h 30m
2 stops
LIM2:15 amLima J Chavez Intl
Feb 4
LIM8:05 amLima J Chavez Intl
38h 32m
2 stops
BOS10:37 pmBoston Logan Intl
$528

American Airlines flights from Boston to South America

Our best American Airlines deals on Boston to South America flight tickets
American Airlines
Feb 8
BOS6:50 amBoston Logan Intl
8h 40m
1 stop
CTG3:30 pmCartagena Rafael Nunez
Feb 13
CTG4:30 pmCartagena Rafael Nunez
17h 31m
1 stop
BOS10:01 amBoston Logan Intl
$289
American Airlines
Jan 29
BOS3:39 pmBoston Logan Intl
23h 51m
1 stop
CTG3:30 pmCartagena Rafael Nunez
Feb 6
CTG4:30 pmCartagena Rafael Nunez
17h 30m
1 stop
BOS10:00 amBoston Logan Intl
$297
American Airlines
Jan 31
BOS6:17 pmBoston Logan Intl
21h 13m
1 stop
CTG3:30 pmCartagena Rafael Nunez
Feb 2
CTG4:30 pmCartagena Rafael Nunez
18h 51m
2 stops
BOS11:21 amBoston Logan Intl
$302

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 8, 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

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Tue 2/3

5:34 am-1:10 pm

1 stop7h 36m

Cartagena Rafael Nunez

Wed 2/11

2:21 pm-11:57 pm

1 stop9h 36m

$209

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Tue 2/3

5:34 am-1:10 pm

1 stop7h 36m

Cartagena Rafael Nunez

Wed 2/11

2:21 pm-11:57 pm

1 stop9h 36m

$213

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 1/28

3:25 pm-10:55 am

2 stops19h 30m

Medellín Jose Maria Cordova Intl

Mon 2/2

5:35 pm-6:35 am

1 stop13h 00m

$301

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Sat 1/24

7:55 am-4:50 pm

1 stop8h 55m

Medellín Jose Maria Cordova Intl

Mon 2/23

7:00 pm-6:35 am

1 stop11h 35m

$302

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 2/4

7:31 am-8:35 pm

1 stop13h 04m

Medellín Jose Maria Cordova Intl

Wed 2/11

12:42 pm-10:03 pm

1 stop9h 21m

$310

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Sun 3/1

3:05 pm-6:30 am

1 stop13h 25m

Sao Paulo Guarulhos Intl

Sun 3/15

5:25 am-11:10 pm

1 stop18h 45m

$488

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Mon 3/2

1:00 pm-6:05 am

1 stop15h 05m

Sao Paulo Guarulhos Intl

Sun 3/15

10:35 pm-11:25 am

1 stop13h 50m

$494

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Mon 3/16

12:45 pm-6:20 am

1 stop16h 35m

Sao Paulo Guarulhos Intl

Mon 3/30

10:25 pm-3:16 pm

1 stop17h 51m

$501

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 1/22

8:55 am-7:15 am

1 stop20h 20m

Rio de Janeiro Santos Dumont

Wed 2/4

4:50 pm-6:35 am

1 stop15h 45m

$592

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 3/6

8:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Sun 3/15

2:00 pm-7:35 am

1 stop18h 35m

$608

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 $628 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 $514 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 41% 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

$281

Fastest flight time

6h 10m

Direct flights

Mon, Tue, 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 $281. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $391.
The fastest flight from Boston to South America takes 6h 10m
Direct flights go from Boston to South America on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Delta and Avianca.
There are 463 airports in South America. From Boston there are direct flights to 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
8,032 reviews
Search Delta flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $254Free CancellationRating
6.3
8,289 reviews
Search Spirit Airlines flights
AviancaPriceFrom $266Free CancellationRating
6.6
2,490 reviews
Search Avianca flights
Copa AirlinesPriceFrom $276Free CancellationRating
7.6
1,562 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $308Free CancellationRating
7.5
1,901 reviews
Search LATAM Airlines flights
JetBluePriceFrom $311Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
United AirlinesPriceFrom $319Free CancellationRating
7.4
9,142 reviews
Search United Airlines flights
American AirlinesPriceFrom $334Free CancellationRating
7.2
11,097 reviews
Search American Airlines flights
GOLPriceFrom $339Free CancellationRating
7.3
1,149 reviews
Search GOL 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
Flights to Limafrom $224
Flights to Buenos Airesfrom $457
Flights to Sao Paulofrom $381
Flights to Bogotáfrom $164
Flights to Rio de Janeirofrom $481
Flights to Medellínfrom $222
Flights to Santiagofrom $351
Flights to Cartagenafrom $168
Flights to Quitofrom $299
Flights to Cuscofrom $379
Flights to Guayaquilfrom $205
Flights to Califrom $167