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Cheap flights from Boston to South America from $103

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 1/23. 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 - 1:10 pm
BOS
-
CTG
7h 36m1 stop
Spirit Airlines Logo
2:21 pm - 11:57 pm
CTG
-
BOS
9h 36m1 stop
$240Spirit Airlines
lun., feb. 2 - vie., feb. 6
Copa Airlines Logo
3:07 pm - 8:41 am
BOS
-
CTG
17h 34m1 stop
Copa Airlines Logo
9:22 am - 10:10 pm
CTG
-
BOS
12h 48m1 stop
$250Copa Airlines
lun., feb. 23 - lun., mar. 2
American Airlines Logo
5:15 am - 1:30 pm
BOS
-
CTG
8h 15m1 stop
American Airlines Logo
4:30 pm - 10:01 am
CTG
-
BOS
17h 31m1 stop
$286American Airlines
lun., ene. 26 - sáb., ene. 31
Avianca Logo
3:25 pm - 10:40 pm
BOS
-
GRU
29h 15m2 stops
Avianca Logo
1:20 am - 6:35 am
GRU
-
BOS
31h 15m1 stop
$524Avianca
mié., feb. 11 - jue., feb. 19
American Airlines Logo
4:19 pm - 10:10 am
BOS
-
GRU
15h 51m1 stop
American Airlines Logo
11:15 pm - 1:56 pm
GRU
-
BOS
15h 41m1 stop
$526American Airlines
vie., ene. 23 - mar., mar. 31
Avianca Logo
9:00 am - 3:20 pm
BOS
-
GRU
29h 20m1 stop
Avianca Logo
7:20 am - 2:55 pm
GRU
-
BOS
32h 35m2 stops
$527Avianca
mar., abr. 28 - sáb., may. 16
LATAM Airlines Logo
3:30 pm - 8:20 am
BOS
-
GIG
14h 50m1 stop
LATAM Airlines Logo
6:55 am - 11:33 pm
GIG
-
BOS
17h 38m2 stops
$597LATAM Airlines
mié., mar. 4 - mié., mar. 11
LATAM Airlines Logo
5:05 pm - 10:15 am
BOS
-
GIG
15h 10m1 stop
LATAM Airlines Logo
7:10 pm - 6:35 am
GIG
-
BOS
13h 25m1 stop
$598LATAM Airlines
dom., ene. 25 - mié., ene. 28
GOL Logo
3:47 pm - 7:00 pm
BOS
-
VCP
25h 13m2 stops
GOL Logo
7:40 pm - 1:56 pm
VCP
-
BOS
19h 16m2 stops
$626GOL
vie., mar. 6 - dom., mar. 22
GOL Logo
2:53 pm - 2:10 pm
BOS
-
CGH
21h 17m2 stops
GOL Logo
6:20 pm - 11:25 am
CGH
-
BOS
18h 05m2 stops
$631GOL
vie., mar. 6 - dom., mar. 22

Air Canada flights from Boston to South America

Our best Air Canada deals on Boston to South America flight tickets
Air Canada
Feb 4
BOS3:35 pmBoston Logan Intl
10h 40m
1 stop
LIM2:15 amLima J Chavez Intl
Mar 7
LIM8:05 amLima J Chavez Intl
11h 07m
1 stop
BOS7:12 pmBoston Logan Intl
$488
Find similar
Air Canada
Jan 11
BOS5:30 amBoston Logan Intl
25h 30m
1 stop
GRU9:00 amSao Paulo Guarulhos Intl
Jan 25
GRU9:45 pmSao Paulo Guarulhos Intl
23h 57m
1 stop
BOS7:42 pmBoston Logan Intl
$662
Find similar
Air Canada
Jan 8
BOS10:45 amBoston Logan Intl
20h 15m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Jan 25
GRU9:45 pmSao Paulo Guarulhos Intl
13h 47m
1 stop
BOS9:32 amBoston Logan Intl
$669
Find similar

LATAM Airlines flights from Boston to South America

Our best LATAM Airlines deals on Boston to South America flight tickets
LATAM Airlines
Feb 22
BOS5:35 amBoston Logan Intl
8h 42m
1 stop
CTG2:17 pmCartagena Rafael Nunez
Mar 1
CTG8:42 pmCartagena Rafael Nunez
27h 17m
2 stops
BOS11:59 pmBoston Logan Intl
$384
Find similar
LATAM Airlines
Apr 30
BOS9:55 amBoston Logan Intl
9h 45m
GRU8:40 pmSao Paulo Guarulhos Intl
May 14
GRU10:45 pmSao Paulo Guarulhos Intl
9h 50m
BOS7:35 amBoston Logan Intl
$579
Find similar
LATAM Airlines
Jan 5
BOS6:55 amBoston Logan Intl
14h 25m
1 stop
LIM9:20 pmLima J Chavez Intl
Jan 16
LIM11:30 pmLima J Chavez Intl
32h 03m
2 stops
BOS7:33 amBoston Logan Intl
$629
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 diciembre 28, 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

lun. 2/2

5:34 am-1:10 pm

1 stop7h 36m

Cartagena Rafael Nunez

vie. 2/6

2:21 pm-11:57 pm

1 stop9h 36m

$240

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

lun. 2/23

3:07 pm-8:41 am

1 stop17h 34m

Cartagena Rafael Nunez

lun. 3/2

9:22 am-10:10 pm

1 stop12h 48m

$250

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

lun. 1/26

5:15 am-1:30 pm

1 stop8h 15m

Cartagena Rafael Nunez

sáb. 1/31

4:30 pm-10:01 am

1 stop17h 31m

$286

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

mié. 2/11

3:25 pm-10:40 pm

2 stops29h 15m

Sao Paulo Guarulhos Intl

jue. 2/19

1:20 am-6:35 am

1 stop31h 15m

$524

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

vie. 1/23

4:19 pm-10:10 am

1 stop15h 51m

Sao Paulo Guarulhos Intl

mar. 3/31

11:15 pm-1:56 pm

1 stop15h 41m

$526

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

mar. 4/28

9:00 am-3:20 pm

1 stop29h 20m

Sao Paulo Guarulhos Intl

sáb. 5/16

7:20 am-2:55 pm

2 stops32h 35m

$527

BostonRio de Janeiro

BOS - GIG

BOSGIG

Boston Logan Intl

mié. 3/4

3:30 pm-8:20 am

1 stop14h 50m

Rio de Janeiro–Galeão Intl

mié. 3/11

6:55 am-11:33 pm

2 stops17h 38m

$597

BostonRio de Janeiro

BOS - GIG

BOSGIG

Boston Logan Intl

dom. 1/25

5:05 pm-10:15 am

1 stop15h 10m

Rio de Janeiro–Galeão Intl

mié. 1/28

7:10 pm-6:35 am

1 stop13h 25m

$598

BostonSao Paulo

BOS - VCP

BOSVCP

Boston Logan Intl

vie. 3/6

3:47 pm-7:00 pm

2 stops25h 13m

Sao Paulo Viracopos

dom. 3/22

7:40 pm-1:56 pm

2 stops19h 16m

$626

BostonSao Paulo

BOS - CGH

BOSCGH

Boston Logan Intl

vie. 3/6

2:53 pm-2:10 pm

2 stops21h 17m

Sao Paulo Congonhas

dom. 3/22

6:20 pm-11:25 am

2 stops18h 05m

$631

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 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 $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 32% 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

$270

Fastest flight time

7h 25m

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 $270. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $317.
The fastest flight from Boston to South America takes 7h 25m
Direct flights go from Boston to South America on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. 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
8,016 reviews
Search Delta flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $255Free CancellationRating
6.3
8,214 reviews
Search Spirit Airlines flights
AviancaPriceFrom $269Free CancellationRating
6.6
2,489 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $308Free CancellationRating
7.5
1,895 reviews
Search LATAM Airlines flights
JetBluePriceFrom $311Free CancellationRating
7.2
2,901 reviews
Search JetBlue flights
Copa AirlinesPriceFrom $311Free CancellationRating
7.6
1,561 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $322Free CancellationRating
7.4
9,114 reviews
Search United Airlines flights
American AirlinesPriceFrom $324Free CancellationRating
7.2
11,071 reviews
Search American Airlines flights
GOLPriceFrom $339Free CancellationRating
7.3
1,139 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 $183
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Flights to Bogotáfrom $163
Flights to Rio de Janeirofrom $469
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Flights to Santiagofrom $378
Flights to Cartagenafrom $166
Flights to Quitofrom $301
Flights to Cuscofrom $398
Flights to Guayaquilfrom $206
Flights to Califrom $166