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Cheap flights from Boston to South America from $93

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 2/9. 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
5:34 am - 1:15 pm
BOS
-
CTG
7h 41m1 stop
Spirit Airlines Logo
2:21 pm - 11:57 pm
CTG
-
BOS
9h 36m1 stop
$237Spirit Airlines
Tue, Jan 27 - Tue, Feb 3
Spirit Airlines Logo
5:34 am - 1:15 pm
BOS
-
CTG
7h 41m1 stop
Spirit Airlines Logo
2:21 pm - 11:57 pm
CTG
-
BOS
9h 36m1 stop
$240Spirit Airlines
Tue, Jan 27 - Tue, Feb 3
Copa Airlines Logo
4:00 pm - 8:10 am
BOS
-
CTG
17h 10m1 stop
Copa Airlines Logo
9:25 am - 11:08 pm
CTG
-
BOS
12h 43m1 stop
$250Copa Airlines
Wed, May 6 - Mon, May 11
American Airlines Logo
6:17 pm - 12:17 pm
BOS
-
CTG
18h 00m1 stop
American Airlines Logo
3:15 pm - 10:02 am
CTG
-
BOS
17h 47m1 stop
$286American Airlines
Sat, Mar 7 - Thu, Mar 12
Copa Airlines Logo
8:43 am - 12:10 am
BOS
-
GRU
14h 27m1 stop
Copa Airlines Logo
2:00 am - 11:09 pm
GRU
-
BOS
22h 09m1 stop
$531Copa Airlines
Tue, Apr 14 - Mon, Apr 20
Avianca Logo
7:55 am - 1:35 am
BOS
-
GRU
15h 40m1 stop
Avianca Logo
5:25 pm - 6:35 am
GRU
-
BOS
15h 10m1 stop
$534Avianca
Thu, Feb 5 - Mon, Mar 2
Avianca Logo
7:55 am - 1:35 am
BOS
-
GRU
15h 40m1 stop
Avianca Logo
7:35 am - 6:35 am
GRU
-
BOS
25h 00m1 stop
$543Avianca
Tue, Feb 3 - Fri, Feb 27
LATAM Airlines Logo
8:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
LATAM Airlines Logo
10:40 pm - 6:35 am
GRU
-
BOS
9h 55mnonstop
$549LATAM Airlines
Thu, Jan 22 - Thu, Feb 5
LATAM Airlines Logo
8:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
LATAM Airlines Logo
10:40 pm - 6:35 am
GRU
-
BOS
9h 55mnonstop
$550LATAM Airlines
Thu, Jan 22 - Thu, Feb 5
American Airlines Logo
3:47 pm - 12:55 pm
BOS
-
CNF
19h 08m2 stops
American Airlines Logo
7:10 pm - 3:16 pm
CNF
-
BOS
21h 06m2 stops
$623American Airlines
Sun, Mar 1 - Mon, Mar 16

Delta flights from Boston to South America

Our best Delta deals on Boston to South America flight tickets
Delta
Apr 1
BOS9:55 amBoston Logan Intl
9h 45m
GRU8:40 pmSao Paulo Guarulhos Intl
Apr 9
GRU10:45 pmSao Paulo Guarulhos Intl
9h 50m
BOS7:35 amBoston Logan Intl
$551
Find similar
Delta
Dec 28
BOS7:50 pmBoston Logan Intl
28h 31m
2 stops
CTG12:21 amCartagena Rafael Nunez
Dec 30
CTG4:35 amCartagena Rafael Nunez
29h 34m
2 stops
BOS10:09 amBoston Logan Intl
$608
Find similar
Delta
Dec 25
BOS7:20 amBoston Logan Intl
17h 01m
2 stops
CTG12:21 amCartagena Rafael Nunez
Dec 27
CTG3:22 pmCartagena Rafael Nunez
9h 45m
1 stop
BOS1:07 amBoston Logan Intl
$646
Find similar

LATAM Airlines flights from Boston to South America

Our best LATAM Airlines deals on Boston to South America flight tickets
LATAM Airlines
Jan 23
BOS5:35 amBoston Logan Intl
8h 42m
1 stop
CTG2:17 pmCartagena Rafael Nunez
Jan 26
CTG8:42 pmCartagena Rafael Nunez
19h 41m
2 stops
BOS4:23 pmBoston Logan Intl
$378
Find similar
LATAM Airlines
Mar 1
BOS5:35 amBoston Logan Intl
8h 42m
1 stop
CTG2:17 pmCartagena Rafael Nunez
Mar 8
CTG8:42 pmCartagena Rafael Nunez
25h 51m
2 stops
BOS11:33 pmBoston Logan Intl
$383
Find similar
LATAM Airlines
Jan 26
BOS5:35 amBoston Logan Intl
8h 42m
1 stop
CTG2:17 pmCartagena Rafael Nunez
Jan 30
CTG10:07 pmCartagena Rafael Nunez
22h 30m
2 stops
BOS8:37 pmBoston Logan Intl
$389
Find similar

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 December 18, 2025.
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 1/27

5:34 am-1:15 pm

1 stop7h 41m

Cartagena Rafael Nunez

Tue 2/3

2:21 pm-11:57 pm

1 stop9h 36m

$237

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Tue 1/27

5:34 am-1:15 pm

1 stop7h 41m

Cartagena Rafael Nunez

Tue 2/3

2:21 pm-11:57 pm

1 stop9h 36m

$240

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Wed 5/6

4:00 pm-8:10 am

1 stop17h 10m

Cartagena Rafael Nunez

Mon 5/11

9:25 am-11:08 pm

1 stop12h 43m

$250

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Sat 3/7

6:17 pm-12:17 pm

1 stop18h 00m

Cartagena Rafael Nunez

Thu 3/12

3:15 pm-10:02 am

1 stop17h 47m

$286

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Tue 4/14

8:43 am-12:10 am

1 stop14h 27m

Sao Paulo Guarulhos Intl

Mon 4/20

2:00 am-11:09 pm

1 stop22h 09m

$531

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 2/5

7:55 am-1:35 am

1 stop15h 40m

Sao Paulo Guarulhos Intl

Mon 3/2

5:25 pm-6:35 am

1 stop15h 10m

$534

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Tue 2/3

7:55 am-1:35 am

1 stop15h 40m

Sao Paulo Guarulhos Intl

Fri 2/27

7:35 am-6:35 am

1 stop25h 00m

$543

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 1/22

8:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Thu 2/5

10:40 pm-6:35 am

Nonstop9h 55m

$549

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 1/22

8:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Thu 2/5

10:40 pm-6:35 am

Nonstop9h 55m

$550

BostonBelo Horizonte

BOS - CNF

BOSCNF

Boston Logan Intl

Sun 3/1

3:47 pm-12:55 pm

2 stops19h 08m

Belo Horizonte Tancredo Neves Intl

Mon 3/16

7:10 pm-3:16 pm

2 stops21h 06m

$623

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 $562.

What is the cheapest day to depart on your flight to South America?

The cheapest day to depart from Boston to South America is on a Monday when prices can be found for as low as $531. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to South America for around $635.

What is the cheapest time of day to depart on your flight to South America?

Our data shows that the cheapest Boston to South America flights are usually those with departure times in the evening. Our users have found flights to South America in the evening for as low as $508. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $594 on average. Flights to South America from Boston in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $635 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 $530 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 31% 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

$269

Fastest flight time

7h 11m

Direct flights

Mon, Tue, Thu, Fri and Sat

Airports in South America

463 airports
The best one-way flight to South America from Boston in the past 72 hours is $269. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $393.
The fastest flight from Boston to South America takes 7h 11m
Direct flights go from Boston to South America on Monday, Tuesday, Thursday, Friday and Saturday. The only airline offering direct flights is Delta.
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
8,008 reviews
Search Delta flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,536 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $265Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
LATAM AirlinesPriceFrom $308Free CancellationRating
7.5
1,893 reviews
Search LATAM Airlines flights
AviancaPriceFrom $314Free CancellationRating
6.6
2,490 reviews
Search Avianca flights
United AirlinesPriceFrom $322Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $330Free CancellationRating
7.6
1,556 reviews
Search Copa Airlines flights
GOLPriceFrom $339Free CancellationRating
7.3
1,131 reviews
Search GOL flights
JetBluePriceFrom $362Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
American AirlinesPriceFrom $388Free CancellationRating
7.2
11,054 reviews
Search American Airlines 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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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 $265
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Flights to Bogotáfrom $178
Flights to Rio de Janeirofrom $472
Flights to Medellínfrom $187
Flights to Santiagofrom $378
Flights to Cartagenafrom $166
Flights to Quitofrom $227
Flights to Cuscofrom $432
Flights to Guayaquilfrom $187
Flights to Califrom $180