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$243+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SCL
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Santiago Arturo Merino Benitez are usually found in September or November, booked 35 days in advance, depart on a Sunday or Monday and return on a Thursday

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 August 13, 2025.

Round-trip from

$503
(Cheapflightsfares)

One-way from

$243
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$767
From Boston Logan Intl to Santiago Arturo Merino Benitez
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One-way flight from Boston Logan Intl to Santiago Arturo Merino Benitez
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Highest demand for flights based on searches. 1% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 13, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:00 amBOS - SCL
1 stop19h 15mAvianca
Fri 10/103:30 pmSCL - BOS
1 stop16h 45mAvianca
Deal found 8/13$503
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:00 amBOS - SCL
1 stop13h 30mAvianca
Tue 10/213:30 pmSCL - BOS
2 stops24h 25mAvianca
Deal found 8/11$504
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/24:55 pmBOS - SCL
1 stop13h 55mLATAM Airlines
Tue 9/911:30 pmSCL - BOS
1 stop16h 38mLATAM Airlines
Deal found 8/11$505
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:50 pmBOS - SCL
2 stops29h 40mAvianca
Tue 10/213:30 pmSCL - BOS
2 stops24h 25mAvianca
Deal found 8/11$506
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/119:55 amBOS - SCL
1 stop24h 35mLATAM Airlines
Wed 9/245:00 pmSCL - BOS
1 stop15h 35mLATAM Airlines
Deal found 8/12$512
This Priceline deal was found by Cheapflights users on 8/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:55 amBOS - SCL
1 stop19h 40mAvianca
Mon 11/174:25 pmSCL - BOS
1 stop16h 10mAvianca
Deal found 8/13$514
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:59 amBOS - SCL
1 stop18h 46mLATAM Airlines
Wed 10/2210:55 pmSCL - BOS
1 stop18h 06mLATAM Airlines
Deal found 8/11$516
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:55 amBOS - SCL
1 stop15h 30mLATAM Airlines
Mon 9/2211:30 pmSCL - BOS
1 stop16h 29mLATAM Airlines
Deal found 8/11$521
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/54:50 pmBOS - SCL
2 stops35h 25mAvianca
Sun 9/283:30 pmSCL - BOS
2 stops24h 25mAvianca
Deal found 8/12$522
This LATAM Airlines deal was found by Cheapflights users on 8/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:24 pmBOS - SCL
1 stop14h 06mLATAM Airlines
Sun 9/284:15 pmSCL - BOS
1 stop16h 20mLATAM Airlines
Deal found 8/11$523
This LATAM Airlines deal was found by Cheapflights users on 8/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:10 pmBOS - SCL
1 stop15h 45mLATAM Airlines
Mon 11/1711:40 pmSCL - BOS
1 stop13h 39mLATAM Airlines
Deal found 8/11$524

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 August 13, 2025.
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 9/4

9:00 am-4:15 am

1 stop19h 15m

Santiago Arturo Merino Benitez

Thu 9/18

3:30 pm-2:55 pm

2 stops24h 25m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 10/20

4:50 pm-2:25 pm

2 stops20h 35m

Santiago Arturo Merino Benitez

Mon 10/27

4:25 pm-7:35 am

1 stop16h 10m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 9/8

4:50 pm-2:25 pm

2 stops20h 35m

Santiago Arturo Merino Benitez

Mon 9/22

3:30 pm-7:15 am

1 stop16h 45m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Wed 10/8

4:50 pm-11:30 pm

2 stops29h 40m

Santiago Arturo Merino Benitez

Wed 10/22

3:30 pm-7:15 am

1 stop16h 45m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 10/7

9:00 am-11:30 pm

1 stop13h 30m

Santiago Arturo Merino Benitez

Thu 10/16

3:30 pm-2:55 pm

2 stops24h 25m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 10/7

9:00 am-5:15 am

1 stop19h 15m

Santiago Arturo Merino Benitez

Sun 10/19

3:30 pm-2:55 pm

2 stops24h 25m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 10/7

9:00 am-11:30 pm

1 stop13h 30m

Santiago Arturo Merino Benitez

Tue 10/21

3:30 pm-2:55 pm

2 stops24h 25m

$504

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 9/2

4:55 pm-6:50 am

1 stop13h 55m

Santiago Arturo Merino Benitez

Tue 9/9

11:30 pm-3:08 pm

1 stop16h 38m

$505

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Wed 10/8

4:50 pm-11:30 pm

2 stops29h 40m

Santiago Arturo Merino Benitez

Tue 10/21

3:30 pm-2:55 pm

2 stops24h 25m

$506

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 9/2

4:55 pm-6:50 am

1 stop13h 55m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 17 results
1
2

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 August 8, 2025.

Booking 35 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, April is the cheapest month in which you can book a flight from Boston to Santiago (average of $752). Flying from Boston to Santiago in December is currently the most expensive (average of $1,098). 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.

What is the cheapest time of day to fly from BOS to SCL?

Find hourly flight availability from Boston to Santiago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Santiago in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Boston to Santiago?

Use this chart to determine the cheapest time to fly round-trip from Boston to Santiago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Santiago flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Boston to Santiago?

Share of 1-stop round-trip flights from Boston to Santiago chosen by Cheapflights users in the past 12 months, using the same layover each way.

Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Boston to Santiago on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Santiago?

Average round-trip fare for 1-stop flights from Boston to Santiago, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $816.

What’s the fastest layover option from Boston to Santiago?

Shortest average travel time for 1-stop one-way flights from Boston to Santiago, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 12h 55m.

Which airport typically offers the quickest layover for flights from Boston to Santiago?

Average layover duration for 1-stop one-way flights from Boston to Santiago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 15m.

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 August 13, 2025.
Get a feel of what it's like to fly with Delta, LATAM Airlines, and Copa 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
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,838 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,507 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Avianca
6.7
Okay
2,397 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Our cheapest airline available from Boston to Santiago is Avianca. Our recent data shows that you can find tickets from as low as $503 on this airline. An additional option worth looking into is LATAM Airlines, starting at $505. Avianca is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 Wynwood Art District, Bayfront Park, or Kaseya Center. Wynwood Art District, Bayfront Park and Kaseya Center are located about 5.5 mi, 6.4 mi, and 6.2 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 $29 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, April is the cheapest month in which you can book a flight from Boston to Santiago (average of $752). Flying from Boston to Santiago in December is currently the most expensive (average of $1,098). 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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$442Average$720FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$488Average$797FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$515Average$826FlexibilityNo cancel feeOn-time81%
DeltaCheapest$518Average$928FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$543Average$985FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$682Average$910FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$688Average$799FlexibilityNo cancel feeOn-time67%

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