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Cheap flights from Boston to South America from $134

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 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:48 am - 10:05 pm
BOS
-
MDE
10h 17m1 stop
United Airlines Logo
10:45 am - 12:46 pm
MDE
-
BOS
26h 01m2 stops
$316United Airlines
Mon, Feb 23 - Wed, Feb 25
United Airlines Logo
5:45 am - 10:05 pm
BOS
-
MDE
16h 20m2 stops
United Airlines Logo
10:45 am - 11:49 pm
MDE
-
BOS
13h 04m2 stops
$319United Airlines
Mon, Jan 19 - Thu, Feb 5
Copa Airlines Logo
3:07 pm - 8:18 am
BOS
-
MDE
17h 11m1 stop
Copa Airlines Logo
5:00 am - 1:39 pm
MDE
-
BOS
8h 39m1 stop
$321Copa Airlines
Fri, Jan 16 - Tue, Jan 20
Copa Airlines Logo
3:07 pm - 8:18 am
BOS
-
MDE
17h 11m1 stop
Copa Airlines Logo
9:17 am - 10:03 pm
MDE
-
BOS
12h 46m1 stop
$324Copa Airlines
Mon, Jan 12 - Fri, Jan 16
Delta Logo
8:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
Delta Logo
10:40 pm - 6:35 am
GRU
-
BOS
9h 55mnonstop
$516Delta
Thu, Jan 22 - Thu, Jan 29
Delta Logo
8:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
Delta Logo
10:40 pm - 6:35 am
GRU
-
BOS
9h 55mnonstop
$517Delta
Thu, Jan 22 - Thu, Jan 29
American Airlines Logo
3:35 pm - 6:05 am
BOS
-
GRU
12h 30m1 stop
American Airlines Logo
11:30 pm - 12:58 pm
GRU
-
BOS
15h 28m2 stops
$520American Airlines
Wed, Jan 21 - Wed, Feb 4
American Airlines Logo
12:16 pm - 6:05 am
BOS
-
GRU
15h 49m1 stop
American Airlines Logo
10:35 pm - 12:58 pm
GRU
-
BOS
16h 23m2 stops
$521American Airlines
Thu, Jan 22 - Thu, Feb 5
LATAM Airlines Logo
9:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
LATAM Airlines Logo
10:45 pm - 7:35 am
GRU
-
BOS
9h 50mnonstop
$531LATAM Airlines
Mon, Mar 30 - Thu, Apr 9
LATAM Airlines Logo
12:45 pm - 7:40 am
BOS
-
SCL
17h 55m1 stop
LATAM Airlines Logo
10:35 am - 10:22 am
SCL
-
BOS
24h 47m1 stop
$551LATAM Airlines
Sat, Mar 14 - Sat, Mar 21

LATAM Airlines flights from Boston to South America

Our best LATAM Airlines deals on Boston to South America flight tickets
LATAM Airlines
Jan 22
BOS8:55 amBoston Logan Intl
10h 00m
GRU8:55 pmSao Paulo Guarulhos Intl
Feb 5
GRU10:40 pmSao Paulo Guarulhos Intl
9h 55m
BOS6:35 amBoston Logan Intl
$517
Find similar
LATAM Airlines
Mar 30
BOS9:55 amBoston Logan Intl
10h 00m
GRU8:55 pmSao Paulo Guarulhos Intl
Apr 9
GRU10:45 pmSao Paulo Guarulhos Intl
9h 50m
BOS7:35 amBoston Logan Intl
$531
Find similar
LATAM Airlines
Mar 6
BOS8:55 amBoston Logan Intl
10h 00m
GRU8:55 pmSao Paulo Guarulhos Intl
Mar 22
GRU10:40 pmSao Paulo Guarulhos Intl
9h 55m
BOS7:35 amBoston Logan Intl
$550
Find similar

Air Canada flights from Boston to South America

Our best Air Canada deals on Boston to South America flight tickets
Air Canada
Mar 6
BOS6:40 pmBoston Logan Intl
32h 35m
1 stop
LIM3:15 amLima J Chavez Intl
Mar 15
LIM8:05 amLima J Chavez Intl
27h 07m
1 stop
BOS12:12 pmBoston Logan Intl
$490
Find similar
Air Canada
Mar 6
BOS6:40 pmBoston Logan Intl
32h 35m
1 stop
LIM3:15 amLima J Chavez Intl
Mar 15
LIM8:05 amLima J Chavez Intl
24h 27m
2 stops
BOS9:32 amBoston Logan Intl
$493
Find similar
Air Canada
Jan 20
BOS3:40 pmBoston Logan Intl
14h 30m
2 stops
LIM6:10 amLima J Chavez Intl
Feb 4
LIM8:05 amLima J Chavez Intl
25h 57m
2 stops
BOS10:02 amBoston Logan Intl
$500
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 January 2, 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

Mon 2/23

11:48 am-10:05 pm

1 stop10h 17m

Medellín Jose Maria Cordova Intl

Wed 2/25

10:45 am-12:46 pm

2 stops26h 01m

$316

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Mon 1/19

5:45 am-10:05 pm

2 stops16h 20m

Medellín Jose Maria Cordova Intl

Thu 2/5

10:45 am-11:49 pm

2 stops13h 04m

$319

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Fri 1/16

3:07 pm-8:18 am

1 stop17h 11m

Medellín Jose Maria Cordova Intl

Tue 1/20

5:00 am-1:39 pm

1 stop8h 39m

$321

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Mon 1/12

3:07 pm-8:18 am

1 stop17h 11m

Medellín Jose Maria Cordova Intl

Fri 1/16

9:17 am-10:03 pm

1 stop12h 46m

$324

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 1/22

8:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Thu 1/29

10:40 pm-6:35 am

Nonstop9h 55m

$516

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 1/22

8:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Thu 1/29

10:40 pm-6:35 am

Nonstop9h 55m

$517

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 1/21

3:35 pm-6:05 am

1 stop12h 30m

Sao Paulo Guarulhos Intl

Wed 2/4

11:30 pm-12:58 pm

2 stops15h 28m

$520

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 1/22

12:16 pm-6:05 am

1 stop15h 49m

Sao Paulo Guarulhos Intl

Thu 2/5

10:35 pm-12:58 pm

2 stops16h 23m

$521

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Mon 3/30

9:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Thu 4/9

10:45 pm-7:35 am

Nonstop9h 50m

$531

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sat 3/14

12:45 pm-7:40 am

1 stop17h 55m

Santiago Arturo Merino Benitez

Sat 3/21

10:35 am-10:22 am

1 stop24h 47m

$551

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 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 $633 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 $521 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 29% 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

$260

Fastest flight time

6h 10m

Direct flights

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 $260. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $352.
The fastest flight from Boston to South America takes 6h 10m
Direct flights go from Boston to South America on 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
8,023 reviews
Search Delta flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,574 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $255Free CancellationRating
6.3
8,257 reviews
Search Spirit Airlines flights
AviancaPriceFrom $269Free CancellationRating
6.6
2,495 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $308Free CancellationRating
7.5
1,899 reviews
Search LATAM Airlines flights
JetBluePriceFrom $311Free CancellationRating
7.2
2,901 reviews
Search JetBlue flights
Copa AirlinesPriceFrom $311Free CancellationRating
7.6
1,566 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $322Free CancellationRating
7.4
9,129 reviews
Search United Airlines flights
American AirlinesPriceFrom $324Free CancellationRating
7.2
11,075 reviews
Search American Airlines flights
GOLPriceFrom $339Free CancellationRating
7.3
1,144 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

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