HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santiago

Cheap flights from Boston (BOS) to Santiago (SCL) - Compare and Save

BOS — SCL
maj 1 — maj 81
fre. 5/1
fre. 5/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap 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 april 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$709
(Kiwi.com)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$850
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. 12% potential increase in price ($120 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 April 2026
Search Deals

Find 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 april 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
lør. 4/256:00 pm
BOS
-
SCL
2 stops33h 55m
Multiple Airlines
man. 5/113:20 pm
SCL
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 3/30$709
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/136:01 am
BOS
-
SCL
2 stops31h 29m
Multiple Airlines
tor. 4/163:20 pm
SCL
-
BOS
2 stops32h 37m
Multiple Airlines
Deal found 3/30$712
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 4/2911:25 am
BOS
-
SCL
2 stops35h 55m
Multiple Airlines
ons. 5/63:20 pm
SCL
-
BOS
2 stops32h 34m
Multiple Airlines
Deal found 3/30$713
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/136:01 am
BOS
-
SCL
3 stops29h 04m
Multiple Airlines
ons. 4/156:40 am
SCL
-
BOS
2 stops30h 37m
Multiple Airlines
Deal found 3/28$724
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/2711:20 am
BOS
-
SCL
2 stops26h 10m
Multiple Airlines
man. 5/43:20 pm
SCL
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 3/28$725
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
ons. 4/2211:20 am
BOS
-
SCL
2 stops18h 10m
Multiple Airlines
man. 5/113:20 pm
SCL
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 3/30$732
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/135:45 am
BOS
-
SCL
3 stops32h 30m
Multiple Airlines
tor. 4/163:20 pm
SCL
-
BOS
2 stops32h 37m
Multiple Airlines
Deal found 3/30$739
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
ons. 4/2911:16 am
BOS
-
SCL
2 stops17h 54m
Multiple Airlines
ons. 5/63:20 pm
SCL
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 3/30$741
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/135:45 am
BOS
-
SCL
3 stops32h 30m
Multiple Airlines
ons. 4/1512:30 am
SCL
-
BOS
3 stops23h 27m
Multiple Airlines
Deal found 3/30$742
This Vliegwinkel deal was found by Cheapflights users on 3/28. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/138:43 am
BOS
-
SCL
1 stop34h 40m
Multiple Airlines
ons. 4/293:20 pm
SCL
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 3/28$753
This KAYAK deal was found by Cheapflights users on 3/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 6/153:18 pm
BOS
-
SCL
1 stop15h 37m
LATAM Airlines
man. 6/2911:00 pm
SCL
-
BOS
1 stop15h 59m
LATAM Airlines
Deal found 3/30$757
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/136:01 am
BOS
-
SCL
3 stops29h 04m
Multiple Airlines
ons. 4/154:41 am
SCL
-
BOS
3 stops32h 36m
Multiple Airlines
Deal found 3/28$758

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 april 1, 2026.
Use the filters below to find and compare flights from Boston to Santiago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 5/12

8:52 am-5:10 am

1 stop20h 18m

Santiago Arturo Merino Benitez

lør. 5/16

2:22 am-11:08 pm

1 stop20h 46m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 5/12

8:52 am-3:00 am

1 stop18h 08m

Santiago Arturo Merino Benitez

søn. 5/17

4:09 am-11:08 pm

1 stop18h 59m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 4/28

8:43 am-10:43 pm

1 stop14h 00m

Santiago Arturo Merino Benitez

ons. 5/6

12:01 am-11:08 pm

1 stop23h 07m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 4/28

8:43 am-2:20 am

1 stop17h 37m

Santiago Arturo Merino Benitez

ons. 5/6

2:22 am-11:08 pm

1 stop20h 46m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 4/28

8:43 am-11:26 pm

1 stop14h 43m

Santiago Arturo Merino Benitez

tir. 5/5

4:41 am-11:08 pm

1 stop18h 27m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

fre. 4/24

8:43 am-10:43 pm

1 stop14h 00m

Santiago Arturo Merino Benitez

søn. 5/10

2:22 am-11:08 pm

1 stop20h 46m

$781
Quickest round-trip

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tor. 5/7

4:00 pm-5:10 am

1 stop13h 10m

Santiago Arturo Merino Benitez

søn. 5/17

4:09 am-11:08 pm

1 stop18h 59m

$781

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

søn. 5/24

4:00 pm-5:10 am

1 stop13h 10m

Santiago Arturo Merino Benitez

ons. 5/27

12:38 am-11:08 pm

1 stop22h 30m

$801

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

fre. 4/24

8:43 am-11:26 pm

1 stop14h 43m

Santiago Arturo Merino Benitez

man. 5/11

4:09 am-11:08 pm

1 stop18h 59m

$805

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tir. 4/21

8:43 am-11:26 pm

1 stop14h 43m

Santiago Arturo Merino Benitez

søn. 5/10

2:22 am-11:08 pm

1 stop20h 46m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 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 FlightHub the most. FlightHub 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 March 13, 2026.

Booking 39 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, October is the cheapest month in which you can book a flight from Boston to Santiago (average of $468). Flying from Boston to Santiago in June is currently the most expensive (average of $825). 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.

How much does it cost to fly round-trip from Boston to Santiago?

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 april 1, 2026.
Get a feel of what it's like to fly with Delta,Copa Airlines, andLATAM 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
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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
8,367 reviews
Delta
7.9
Good
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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
7.5
Good
1,579 reviews
Delta
7.9
Good
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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
7.4
Good
1,905 reviews
Delta
7.9
Good
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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
9,529 reviews
Delta
7.9
Good
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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
7.1
Good
11,545 reviews
Delta
7.9
Good
8,367 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

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 $781, Copa Airlines can have you in Santiago from Boston in 18h 08m. 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 Delta and LATAM Airlines, starting at $513 and $513 round-trip. Copa Airlines is 50% 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 $26 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, October is the cheapest month in which you can book a flight from Boston to Santiago (average of $468). Flying from Boston to Santiago in June is currently the most expensive (average of $825). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Santiago

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

Top 6 airlines flying from Boston to Santiago

Discover the top 6 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 april 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$399Average$682FlexibilityNo cancel feeOn-time70%
DeltaCheapest$513Average$846FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$513Average$746FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$514Average$814FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$543Average$845FlexibilityNo cancel feeOn-time71%
AviancaCheapest$603Average$857FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.