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$289+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SCL
jun 13 — jun 201
lör 6/13
lör 6/20
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 maj 14, 2026.

This Copa Airlines deal was found by Cheapflights users on 5/13. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 10/218:47 am
BOS
-
SCL
1 stop13h 52m
Copa Airlines
fre 11/61:46 am
SCL
-
BOS
1 stop22h 17m
Copa Airlines
Deal found 5/13$722
This American Airlines deal was found by Cheapflights users on 5/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 8/113:21 pm
BOS
-
SCL
1 stop15h 29m
American Airlines
tis 8/258:30 pm
SCL
-
BOS
1 stop20h 45m
American Airlines
Deal found 5/13$734
This United Airlines deal was found by Cheapflights users on 5/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 11/48:00 pm
BOS
-
SCL
2 stops34h 50m
United Airlines
ons 11/1110:45 pm
SCL
-
BOS
2 stops27h 09m
United Airlines
Deal found 5/13$739
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 9/15:24 pm
BOS
-
SCL
1 stop13h 26m
American Airlines
mån 9/79:30 pm
SCL
-
BOS
2 stops20h 16m
American Airlines
Deal found 5/12$745
This eDestinos deal was found by Cheapflights users on 5/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 7/115:05 pm
BOS
-
SCL
1 stop13h 20m
LATAM Airlines
lör 8/1511:00 pm
SCL
-
BOS
1 stop24h 36m
LATAM Airlines
Deal found 5/11$755
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 9/2411:23 am
BOS
-
SCL
1 stop20h 27m
American Airlines
mån 10/129:30 pm
SCL
-
BOS
2 stops17h 47m
American Airlines
Deal found 5/12$758
This Copa Airlines deal was found by Cheapflights users on 5/13. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 9/268:47 am
BOS
-
SCL
1 stop18h 09m
Copa Airlines
sön 10/41:07 am
SCL
-
BOS
1 stop14h 32m
Copa Airlines
Deal found 5/13$762
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 8/177:30 am
BOS
-
SCL
1 stop23h 20m
American Airlines
mån 8/318:30 pm
SCL
-
BOS
1 stop15h 30m
American Airlines
Deal found 5/12$766
This LATAM Airlines deal was found by Cheapflights users on 5/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/281:29 pm
BOS
-
SCL
1 stop16h 56m
LATAM Airlines
mån 6/16:00 pm
SCL
-
BOS
2 stops21h 08m
LATAM Airlines
Deal found 5/12$772
This American Airlines deal was found by Cheapflights users on 5/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 8/312:02 pm
BOS
-
SCL
1 stop16h 48m
American Airlines
lör 9/59:30 pm
SCL
-
BOS
1 stop12h 49m
American Airlines
Deal found 5/13$774

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 maj 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$734
(American Airlines)

One-way from

$289
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$903
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 ($137 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 May 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 maj 14, 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

ons 11/4

7:31 am-6:00 am

1 stop20h 29m

Santiago Arturo Merino Benitez

tis 11/10

1:46 am-1:39 pm

1 stop13h 53m

$722

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

mån 9/7

8:47 am-6:10 am

1 stop20h 23m

Santiago Arturo Merino Benitez

sön 9/20

1:43 am-2:39 pm

1 stop13h 56m

$722

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tis 10/20

3:55 pm-6:10 am

1 stop13h 15m

Santiago Arturo Merino Benitez

tis 11/10

3:21 am-10:03 pm

1 stop20h 42m

$722

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

sön 9/6

8:47 am-3:56 am

1 stop18h 09m

Santiago Arturo Merino Benitez

fre 9/18

3:56 am-11:02 pm

1 stop20h 06m

$722

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

lör 9/26

8:47 am-5:59 am

1 stop20h 12m

Santiago Arturo Merino Benitez

mån 10/5

5:15 am-11:02 pm

1 stop18h 47m

$722
Quickest round-trip

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

ons 9/9

8:47 am-11:39 pm

1 stop13h 52m

Santiago Arturo Merino Benitez

sön 9/20

1:06 am-2:39 pm

1 stop14h 33m

$722

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

ons 10/21

8:47 am-12:22 am

1 stop14h 35m

Santiago Arturo Merino Benitez

fre 11/6

3:34 am-10:03 pm

1 stop20h 29m

$722
Cheapest one-way

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

fre 9/25

12:15 pm-12:35 am

2 stops35h 20m

$334

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

tis 6/2

8:52 am-4:16 am

2 stops43h 24m

$405

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

mån 8/10

6:00 am-2:35 am

3 stops44h 35m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 18 resultsSorted by cheapest first
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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*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?

Booking 38 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, September is the cheapest month in which you can book a flight from Boston to Santiago (average of $637). Flying from Boston to Santiago in June is currently the most expensive (average of $1,010). 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 maj 14, 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
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,450 reviews
Delta
7.9
Good
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Copa Airlines
7.5
Good
1,584 reviews
Delta
7.9
Good
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
LATAM Airlines
7.4
Good
1,925 reviews
Delta
7.9
Good
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,709 reviews
Delta
7.9
Good
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,661 reviews
Delta
7.9
Good
8,450 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 $722, Copa Airlines can have you in Santiago from Boston in 20h 29m. 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 $381 on this airline. Additional options worth looking into are Avianca and Delta, starting at $442 and $513 round-trip. Copa Airlines is 52% 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 $254 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 Atlanta.

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

    If you're on a layover in Atlanta and looking for things to do, consider visiting Georgia Aquarium, Centennial Olympic Park, or Fox Theatre. Georgia Aquarium, Centennial Olympic Park and Fox Theatre are located about 8.6 mi, 8.4 mi, and 9.3 mi, respectively from Atlanta Hartsfield-Jackson if you are interested in checking them out. Travelers can rent a car at Atlanta Hartsfield-Jackson for an average daily rate of $60 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 Miami.

  • 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, September is the cheapest month in which you can book a flight from Boston to Santiago (average of $637). Flying from Boston to Santiago in June is currently the most expensive (average of $1,010). 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 Concepción flights
Boston to Easter Island 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 maj 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$381Average$667FlexibilityNo cancel feeOn-time70%
AviancaCheapest$442Average$825FlexibilityNo cancel feeOn-time71%
DeltaCheapest$513Average$837FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$513Average$744FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$514Average$814FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$543Average$857FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$697Average$774FlexibilityNo cancel feeOn-time67%

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