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$272+ Cheap flights from Boston (BOS) to Santiago (SCL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SCL
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Boston to Santiago

Cheapest flights from Boston to Santiago
Explore the most affordable flight options available from Boston to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:00 am
BOS
-
SCL
2 stops55h 40m
Multiple Airlines
Tue 3/3111:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$544
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:00 am
BOS
-
SCL
2 stops55h 40m
Multiple Airlines
Wed 4/110:30 am
SCL
-
BOS
1 stop28h 25m
Multiple Airlines
Deal found 1/21$567
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:00 am
BOS
-
SCL
3 stops29h 00m
Multiple Airlines
Tue 3/3111:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$568
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:50 pm
BOS
-
SCL
3 stops41h 10m
Multiple Airlines
Mon 3/238:25 am
SCL
-
BOS
2 stops30h 30m
Multiple Airlines
Deal found 1/19$580
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/226:00 am
BOS
-
SCL
2 stops23h 40m
Multiple Airlines
Mon 3/3011:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$590
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:00 am
BOS
-
SCL
3 stops29h 00m
Multiple Airlines
Mon 3/3011:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$592
This Kiwi.com deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:55 pm
BOS
-
SCL
2 stops27h 20m
Multiple Airlines
Fri 5/296:10 am
SCL
-
BOS
1 stop25h 05m
Multiple Airlines
Deal found 1/18$615
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:00 am
BOS
-
SCL
2 stops23h 40m
Multiple Airlines
Tue 3/3111:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$623
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:55 pm
BOS
-
SCL
2 stops27h 20m
Multiple Airlines
Thu 5/218:30 am
SCL
-
BOS
2 stops32h 28m
Multiple Airlines
Deal found 1/21$627
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:00 am
BOS
-
SCL
2 stops20h 35m
Multiple Airlines
Tue 3/3111:00 pm
SCL
-
BOS
1 stop15h 55m
Multiple Airlines
Deal found 1/21$629
This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/51:00 pm
BOS
-
SCL
1 stop15h 55m
LATAM Airlines
Thu 2/1911:30 pm
SCL
-
BOS
1 stop13h 42m
LATAM Airlines
Deal found 1/20$633

Find flight deals from Boston to Santiago

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Santiago (SCL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$544
(Kiwi.com)

One-way from

$272
(Kiwi.com)

Popular in

April

Cheapest in

November

Average price

$707
Provider with most accurate pricing for Boston Logan Intl-Santiago Arturo Merino Benitez flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Santiago Arturo Merino Benitez flights.
Search Deals
From Boston Logan Intl to Santiago Arturo Merino Benitez
Search Deals
One-way flight from Boston Logan Intl to Santiago Arturo Merino Benitez
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Santiago 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, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Boston to Santiago that are best for you.

Fly from

Boston

Fly to

Santiago

Route

Depart

Return

Price

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 2/5

1:00 pm-6:55 am

1 stop15h 55m

Santiago Arturo Merino Benitez

Thu 2/19

11:30 pm-11:12 am

1 stop13h 42m

$633

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 4/20

5:05 pm-6:50 am

1 stop13h 45m

Santiago Arturo Merino Benitez

Mon 4/27

10:55 pm-3:28 pm

1 stop16h 33m

$646

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 5/7

9:55 am-6:50 am

1 stop20h 55m

Santiago Arturo Merino Benitez

Sun 5/17

10:55 pm-3:19 pm

1 stop16h 24m

$655

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Fri 3/6

6:15 am-12:15 pm

1 stop28h 00m

Santiago Arturo Merino Benitez

Fri 3/13

7:25 am-7:35 am

1 stop25h 10m

$669

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 2/5

5:30 am-6:50 am

1 stop23h 20m

Santiago Arturo Merino Benitez

Wed 2/18

8:25 am-2:52 pm

1 stop32h 27m

$669

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 4/19

5:05 pm-1:05 pm

2 stops20h 00m

Santiago Arturo Merino Benitez

Sat 5/2

10:55 pm-3:28 pm

1 stop16h 33m

$684

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 4/12

6:00 am-9:15 pm

2 stops39h 15m

$289

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 3/16

6:00 am-6:40 am

2 stops23h 40m

$316

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 3/16

3:15 pm-7:00 am

1 stop14h 45m

$336

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Fri 3/6

3:50 pm-7:00 am

1 stop13h 10m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 17 results
1
2

Compare providers for flights from Boston to Santiago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Santiago in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Santiago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Santiago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Santiago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Santiago flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Santiago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Santiago

Have a flexible travel schedule? Discover the best time to fly to Santiago from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Santiago

How far ahead should I book a flight from Boston to Santiago?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Santiago. Price data was last updated on January 16, 2026.

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Santiago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Santiago?

Currently, May is the cheapest month in which you can book a flight from Boston to Santiago (average of $460). Flying from Boston to Santiago in June is currently the most expensive (average of $791). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Santiago

Get insights into the airlines that provide service to Santiago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago. Reviews last updated January 21, 2026.
Get a feel of what it's like to fly with Delta, Copa Airlines, and LATAM Airlines from Boston to Santiago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,086 reviews
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.6
Good
1,559 reviews
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,912 reviews
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,189 reviews
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,169 reviews
Delta
7.9
Good
8,086 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Santiago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Santiago?

    For as low as $633, LATAM Airlines can have you in Santiago from Boston in 15h 55m. The distance from Boston to Santiago is about 5231 mi.

  • What are the cheapest airlines flying from Boston to Santiago round-trip?

    Our cheapest airline available from Boston to Santiago is Copa Airlines. Our recent data shows that you can find tickets from as low as $399 on this airline. Additional options worth looking into are Avianca and Delta, starting at $442 and $513 round-trip. Copa Airlines is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Santiago one-way?

    To fly one-way, consider booking your trip with Avianca, which is currently one of the cheapest options available, starting at $228. Copa Airlines flights start at $249 while deals on LATAM Airlines start at $250 one-way.

  • Where are the most common layover locations when flying from Boston to Santiago?

    Most of the time, Boston to Santiago flights that have layovers will stop in Miami.

  • What are some popular things to do or see while on a layover in Miami?

    If you're on a layover in Miami and looking for things to do, consider visiting Kaseya Center, Bayfront Park, or Bayside Marketplace. Kaseya Center, Bayfront Park and Bayside Marketplace are located about 6.2 mi, 6.4 mi, and 6.4 mi, respectively from Miami if you are interested in checking them out. Travelers can rent a car at Miami for an average daily rate of $33 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Boston to Santiago flights?

    The least popular layover on flights from Boston to Santiago is Atlanta.

  • Can I find deals for flights from Boston to Santiago that include hotel bookings?

    Yes. In addition to deals on Boston to Santiago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Santiago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Santiago.

  • Can I find deals for business class flights from Boston to Santiago?

    Yes. Cheapflights offers flight deals from Boston to Santiago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Santiago?

    Currently, May is the cheapest month in which you can book a flight from Boston to Santiago (average of $460). Flying from Boston to Santiago in June is currently the most expensive (average of $791). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to Santiago

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to Santiago flights
Boston to Punta Arenas flights
Boston to Easter Island flights
Boston to Concepción flights
Boston to La Serena flights

Top 7 airlines flying from Boston to Santiago

Discover the top 7 airlines that operate flights from Boston to Santiago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$399Average$906FlexibilityNo cancel feeOn-time70%
AviancaCheapest$442Average$747FlexibilityNo cancel feeOn-time71%
DeltaCheapest$513Average$912FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$513Average$797FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$514Average$779FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$543Average$895FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$697Average$897FlexibilityNo cancel feeOn-time67%

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