Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Boston to South America from $85

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 2/25. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to South America

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
5:45 am - 1:22 pm
BOS
-
MDE
8h 37m
1 stop
Spirit Airlines Logo
1:52 pm - 3:28 pm
MDE
-
BOS
24h 36m
2 stops
$261Spirit Airlines
Tue, Mar 24 - Tue, Mar 31
Spirit Airlines Logo
5:27 am - 2:13 pm
BOS
-
MDE
8h 46m
1 stop
Spirit Airlines Logo
2:15 pm - 3:28 pm
MDE
-
BOS
24h 13m
1 stop
$262Spirit Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
6:25 pm - 1:30 pm
BOS
-
CTG
19h 05m
1 stop
American Airlines Logo
4:30 pm - 10:01 am
CTG
-
BOS
17h 31m
1 stop
$293American Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
7:02 pm - 12:27 pm
BOS
-
CTG
17h 25m
2 stops
American Airlines Logo
3:15 pm - 11:36 am
CTG
-
BOS
19h 21m
2 stops
$295American Airlines
Sat, Mar 7 - Thu, Mar 12
Avianca Logo
8:45 am - 7:15 pm
BOS
-
CTG
11h 30m
1 stop
Avianca Logo
4:00 pm - 7:10 am
CTG
-
BOS
14h 10m
1 stop
$301Avianca
Thu, Apr 9 - Mon, Apr 13
Avianca Logo
8:55 am - 1:35 am
BOS
-
GRU
15h 40m
1 stop
Avianca Logo
7:35 am - 7:35 am
GRU
-
BOS
25h 00m
1 stop
$450Avianca
Thu, Mar 12 - Mon, Mar 23
United Airlines Logo
7:34 pm - 10:20 am
BOS
-
GRU
13h 46m
1 stop
United Airlines Logo
10:15 pm - 12:49 pm
GRU
-
BOS
15h 34m
1 stop
$453United Airlines
Mon, Mar 9 - Wed, Mar 11
Copa Airlines Logo
8:44 am - 12:15 am
BOS
-
GRU
14h 31m
1 stop
Copa Airlines Logo
2:00 am - 2:34 pm
GRU
-
BOS
13h 34m
1 stop
$454Copa Airlines
Wed, Mar 25 - Sun, Apr 5
United Airlines Logo
4:25 pm - 10:20 am
BOS
-
GRU
16h 55m
2 stops
United Airlines Logo
9:30 pm - 12:56 pm
GRU
-
BOS
16h 26m
2 stops
$457United Airlines
Mon, Mar 9 - Wed, Mar 11
Copa Airlines Logo
3:05 pm - 12:30 am
BOS
-
GIG
31h 25m
1 stop
Copa Airlines Logo
5:10 am - 11:10 pm
GIG
-
BOS
19h 00m
1 stop
$560Copa Airlines
Thu, Mar 5 - Thu, Mar 19

American Airlines flights from Boston to South America

Our best American Airlines deals on Boston to South America flight tickets
American Airlines
Feb 28
BOS6:25 pmBoston Logan Intl
19h 05m
1 stop
CTG1:30 pmCartagena Rafael Nunez
Mar 4
CTG4:30 pmCartagena Rafael Nunez
17h 31m
1 stop
BOS10:01 amBoston Logan Intl
$293
American Airlines
Mar 7
BOS7:02 pmBoston Logan Intl
17h 25m
2 stops
CTG12:27 pmCartagena Rafael Nunez
Mar 12
CTG3:15 pmCartagena Rafael Nunez
19h 21m
2 stops
BOS11:36 amBoston Logan Intl
$295
American Airlines
Feb 22
BOS9:33 pmBoston Logan Intl
15h 57m
2 stops
CTG1:30 pmCartagena Rafael Nunez
Feb 28
CTG2:30 pmCartagena Rafael Nunez
19h 35m
2 stops
BOS10:05 amBoston Logan Intl
$296

Avianca flights from Boston to South America

Our best Avianca deals on Boston to South America flight tickets
Avianca
Feb 21
BOS7:55 amBoston Logan Intl
11h 00m
1 stop
MDE6:55 pmMedellín Jose Maria Cordova Intl
Mar 2
MDE7:40 pmMedellín Jose Maria Cordova Intl
10h 55m
1 stop
BOS6:35 amBoston Logan Intl
$296
Avianca
Mar 5
BOS7:55 amBoston Logan Intl
11h 00m
1 stop
MDE6:55 pmMedellín Jose Maria Cordova Intl
Mar 16
MDE8:10 pmMedellín Jose Maria Cordova Intl
10h 25m
1 stop
BOS7:35 amBoston Logan Intl
$298
Avianca
Mar 2
BOS3:25 pmBoston Logan Intl
14h 40m
2 stops
MDE6:05 amMedellín Jose Maria Cordova Intl
Mar 9
MDE8:10 pmMedellín Jose Maria Cordova Intl
10h 25m
1 stop
BOS7:35 amBoston Logan Intl
$299

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 February 3, 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 3/24

5:45 am-1:22 pm

1 stop8h 37m

Medellín Jose Maria Cordova Intl

Tue 3/31

1:52 pm-3:28 pm

2 stops24h 36m

$261

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 3/4

5:27 am-2:13 pm

1 stop8h 46m

Medellín Jose Maria Cordova Intl

Wed 3/11

2:15 pm-3:28 pm

1 stop24h 13m

$262

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Sat 2/28

6:25 pm-1:30 pm

1 stop19h 05m

Cartagena Rafael Nunez

Wed 3/4

4:30 pm-10:01 am

1 stop17h 31m

$293

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Sat 3/7

7:02 pm-12:27 pm

2 stops17h 25m

Cartagena Rafael Nunez

Thu 3/12

3:15 pm-11:36 am

2 stops19h 21m

$295

BostonCartagena

BOS - CTG

BOSCTG

Boston Logan Intl

Thu 4/9

8:45 am-7:15 pm

1 stop11h 30m

Cartagena Rafael Nunez

Mon 4/13

4:00 pm-7:10 am

1 stop14h 10m

$301

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Thu 3/12

8:55 am-1:35 am

1 stop15h 40m

Sao Paulo Guarulhos Intl

Mon 3/23

7:35 am-7:35 am

1 stop25h 00m

$450

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Mon 3/9

7:34 pm-10:20 am

1 stop13h 46m

Sao Paulo Guarulhos Intl

Wed 3/11

10:15 pm-12:49 pm

1 stop15h 34m

$453

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 3/25

8:44 am-12:15 am

1 stop14h 31m

Sao Paulo Guarulhos Intl

Sun 4/5

2:00 am-2:34 pm

1 stop13h 34m

$454

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Mon 3/9

4:25 pm-10:20 am

2 stops16h 55m

Sao Paulo Guarulhos Intl

Wed 3/11

9:30 pm-12:56 pm

2 stops16h 26m

$457

BostonRio de Janeiro

BOS - GIG

BOSGIG

Boston Logan Intl

Thu 3/5

3:05 pm-12:30 am

1 stop31h 25m

Rio de Janeiro–Galeão Intl

Thu 3/19

5:10 am-11:10 pm

1 stop19h 00m

$560

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 30% 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

$226

Fastest flight time

7h 21m

Direct flights

Mon, Wed, 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 $226. The best round-trip flight deal from Boston to South America found on momondo in the last 72 hours is $414.
The fastest flight from Boston to South America takes 7h 21m
Direct flights go from Boston to South America on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Avianca.
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
AviancaPriceFrom $107Free CancellationRating
6.5
2,498 reviews
Search Avianca flights
DeltaPriceFrom $117Free CancellationRating
7.9
8,138 reviews
Search Delta flights
ArajetPriceFrom $137Free CancellationRating
6.6
43 reviews
Search Arajet flights
GOLPriceFrom $166Free CancellationRating
7.3
1,165 reviews
Search GOL flights
Copa AirlinesPriceFrom $206Free CancellationRating
7.6
1,558 reviews
Search Copa Airlines flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,684 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $249Free CancellationRating
6.3
8,407 reviews
Search Spirit Airlines flights
LATAM AirlinesPriceFrom $262Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
JetBluePriceFrom $294Free CancellationRating
7.2
2,893 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

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 $187
Flights to Buenos Airesfrom $503
Flights to Sao Paulofrom $377
Flights to Bogotáfrom $162
Flights to Rio de Janeirofrom $474
Flights to Medellínfrom $94
Flights to Santiagofrom $371
Flights to Cartagenafrom $166
Flights to Quitofrom $295
Flights to Guayaquilfrom $165
Flights to Cuscofrom $320
Flights to Califrom $187