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Cheap flights from Boston to South America from $155

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 1/7. 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.
Copa Airlines Logo
3:07 pm - 8:18 am
BOS
-
MDE
17h 11m1 stop
Copa Airlines Logo
12:42 pm - 10:03 pm
MDE
-
BOS
9h 21m1 stop
$351Copa Airlines
Thu, Jan 15 - Thu, Jan 29
Spirit Airlines Logo
5:27 am - 2:13 pm
BOS
-
MDE
8h 46m1 stop
Spirit Airlines Logo
3:15 pm - 11:46 pm
MDE
-
BOS
8h 31m1 stop
$360Spirit Airlines
Fri, Feb 20 - Thu, Feb 26
United Airlines Logo
6:00 am - 10:05 pm
BOS
-
MDE
16h 05m2 stops
United Airlines Logo
10:45 am - 12:46 pm
MDE
-
BOS
26h 01m2 stops
$373United Airlines
Wed, Jan 28 - Mon, Feb 2
United Airlines Logo
6:00 am - 10:05 pm
BOS
-
MDE
16h 05m2 stops
United Airlines Logo
10:45 am - 2:17 pm
MDE
-
BOS
27h 32m2 stops
$375United Airlines
Sun, Jan 11 - Mon, Feb 2
Avianca Logo
4:25 pm - 10:45 am
BOS
-
LIM
19h 20m2 stops
Avianca Logo
10:35 am - 7:15 am
LIM
-
BOS
19h 40m1 stop
$529Avianca
Sun, Mar 15 - Wed, Apr 1
LATAM Airlines Logo
9:55 am - 8:55 pm
BOS
-
GRU
10h 00mnonstop
LATAM Airlines Logo
10:40 pm - 7:35 am
GRU
-
BOS
9h 55mnonstop
$543LATAM Airlines
Wed, Mar 18 - Sun, Mar 22
Avianca Logo
4:25 pm - 10:40 pm
BOS
-
GRU
29h 15m2 stops
Avianca Logo
5:25 pm - 2:50 pm
GRU
-
BOS
22h 25m2 stops
$544Avianca
Wed, Mar 11 - Sun, Mar 15
LATAM Airlines Logo
9:55 am - 8:40 pm
BOS
-
GRU
9h 45mnonstop
LATAM Airlines Logo
10:45 pm - 7:35 am
GRU
-
BOS
9h 50mnonstop
$550LATAM Airlines
Wed, Apr 1 - Tue, Apr 14
GOL Logo
7:06 pm - 9:10 am
BOS
-
VCP
37h 04m2 stops
GOL Logo
7:40 pm - 1:56 pm
VCP
-
BOS
19h 16m2 stops
$629GOL
Mon, Mar 16 - Mon, Mar 30
GOL Logo
7:35 pm - 9:10 am
BOS
-
VCP
35h 35m2 stops
GOL Logo
9:50 am - 10:01 am
VCP
-
BOS
26h 11m2 stops
$632GOL
Mon, Jan 19 - Mon, Feb 2

LATAM Airlines flights from Boston to South America

Our best LATAM Airlines deals on Boston to South America flight tickets
LATAM Airlines
Mar 24
BOS5:35 amBoston Logan Intl
9h 50m
1 stop
BOG2:25 pmBogotá El Dorado
Mar 31
BOG11:00 amBogotá El Dorado
11h 33m
1 stop
BOS11:33 pmBoston Logan Intl
$387
Find similar
LATAM Airlines
Mar 13
BOS7:54 pmBoston Logan Intl
25h 26m
1 stop
BOG8:20 pmBogotá El Dorado
Mar 22
BOG3:55 pmBogotá El Dorado
18h 33m
1 stop
BOS11:28 amBoston Logan Intl
$410
Find similar
LATAM Airlines
Mar 3
BOS7:59 pmBoston Logan Intl
12h 41m
2 stops
BOG8:40 amBogotá El Dorado
Mar 7
BOG3:55 pmBogotá El Dorado
9h 14m
1 stop
BOS1:09 amBoston Logan Intl
$412
Find similar

Delta flights from Boston to South America

Our best Delta deals on Boston to South America flight tickets
Delta
Jan 28
BOS7:05 amBoston Logan Intl
9h 40m
1 stop
BOG4:45 pmBogotá El Dorado
Jan 31
BOG7:00 amBogotá El Dorado
15h 47m
2 stops
BOS10:47 pmBoston Logan Intl
$400
Find similar
Delta
Mar 7
BOS6:53 pmBoston Logan Intl
21h 52m
2 stops
BOG4:45 pmBogotá El Dorado
Mar 16
BOG3:55 pmBogotá El Dorado
18h 33m
1 stop
BOS11:28 amBoston Logan Intl
$414
Find similar
Delta
Apr 26
BOS6:05 amBoston Logan Intl
15h 05m
2 stops
BOG8:10 pmBogotá El Dorado
May 3
BOG8:40 amBogotá El Dorado
24h 41m
1 stop
BOS10:21 amBoston Logan Intl
$423
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 23, 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

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Thu 1/15

3:07 pm-8:18 am

1 stop17h 11m

Medellín Jose Maria Cordova Intl

Thu 1/29

12:42 pm-10:03 pm

1 stop9h 21m

$351

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Fri 2/20

5:27 am-2:13 pm

1 stop8h 46m

Medellín Jose Maria Cordova Intl

Thu 2/26

3:15 pm-11:46 pm

1 stop8h 31m

$360

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Wed 1/28

6:00 am-10:05 pm

2 stops16h 05m

Medellín Jose Maria Cordova Intl

Mon 2/2

10:45 am-12:46 pm

2 stops26h 01m

$373

BostonMedellín

BOS - MDE

BOSMDE

Boston Logan Intl

Sun 1/11

6:00 am-10:05 pm

2 stops16h 05m

Medellín Jose Maria Cordova Intl

Mon 2/2

10:45 am-2:17 pm

2 stops27h 32m

$375

BostonLima

BOS - LIM

BOSLIM

Boston Logan Intl

Sun 3/15

4:25 pm-10:45 am

2 stops19h 20m

Lima J Chavez Intl

Wed 4/1

10:35 am-7:15 am

1 stop19h 40m

$529

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 3/18

9:55 am-8:55 pm

Nonstop10h 00m

Sao Paulo Guarulhos Intl

Sun 3/22

10:40 pm-7:35 am

Nonstop9h 55m

$543

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 3/11

4:25 pm-10:40 pm

2 stops29h 15m

Sao Paulo Guarulhos Intl

Sun 3/15

5:25 pm-2:50 pm

2 stops22h 25m

$544

BostonSao Paulo

BOS - GRU

BOSGRU

Boston Logan Intl

Wed 4/1

9:55 am-8:40 pm

Nonstop9h 45m

Sao Paulo Guarulhos Intl

Tue 4/14

10:45 pm-7:35 am

Nonstop9h 50m

$550

BostonSao Paulo

BOS - VCP

BOSVCP

Boston Logan Intl

Mon 3/16

7:06 pm-9:10 am

2 stops37h 04m

Sao Paulo Viracopos

Mon 3/30

7:40 pm-1:56 pm

2 stops19h 16m

$629

BostonSao Paulo

BOS - VCP

BOSVCP

Boston Logan Intl

Mon 1/19

7:35 pm-9:10 am

2 stops35h 35m

Sao Paulo Viracopos

Mon 2/2

9:50 am-10:01 am

2 stops26h 11m

$632

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 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

6h 30m

Direct flights

Tue, Wed, 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 6h 30m
Direct flights go from Boston to South America on Tuesday, Wednesday, 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 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
DeltaPriceFrom $117Free CancellationRating
7.9
8,015 reviews
Search Delta flights
Air CanadaPriceFrom $234Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
Spirit AirlinesPriceFrom $271Free CancellationRating
6.3
8,194 reviews
Search Spirit Airlines flights
AviancaPriceFrom $273Free CancellationRating
6.6
2,491 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $308Free CancellationRating
7.5
1,894 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $319Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $330Free CancellationRating
7.6
1,557 reviews
Search Copa Airlines flights
GOLPriceFrom $339Free CancellationRating
7.3
1,133 reviews
Search GOL flights
JetBluePriceFrom $364Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
American AirlinesPriceFrom $388Free CancellationRating
7.2
11,050 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
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Flights to Santiagofrom $378
Flights to Cartagenafrom $166
Flights to Quitofrom $228
Flights to Cuscofrom $420
Flights to Guayaquilfrom $216
Flights to Califrom $166