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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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SCL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 November or September, booked 36 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 July 29, 2025.

Round-trip from

$505
(FlightHub)

One-way from

$243
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$881
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. 0% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This FlightHub deal was found by Cheapflights users on 7/27. 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 9/297:10 amBOS - SCL
1 stop22h 20mLATAM Airlines
Sun 10/510:50 pmSCL - BOS
1 stop18h 11mLATAM Airlines
Deal found 7/27$505
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/269:55 amBOS - SCL
1 stop19h 05mDelta
Sat 11/81:35 amSCL - BOS
1 stop31h 00mDelta
Deal found 7/27$529
This Avianca deal was found by Cheapflights users on 7/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:50 pmBOS - SCL
2 stops29h 40mAvianca
Sun 9/2112:55 amSCL - BOS
1 stop31h 20mAvianca
Deal found 7/28$531
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 11/1011:59 amBOS - SCL
2 stops18h 51mUnited Airlines
Mon 11/1710:45 pmSCL - BOS
2 stops18h 32mUnited Airlines
Deal found 7/29$532
This Copa Airlines deal was found by Cheapflights users on 7/28. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:41 amBOS - SCL
1 stop18h 01mCopa Airlines
Sun 9/213:26 amSCL - BOS
1 stop16h 56mCopa Airlines
Deal found 7/28$552
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/244:55 pmBOS - SCL
1 stop13h 50mMultiple Airlines
Fri 8/292:26 amSCL - BOS
2 stops30h 09mMultiple Airlines
Deal found 7/27$655
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 10/46:13 pmBOS - SCL
1 stop12h 42mAmerican Airlines
Sun 10/129:55 pmSCL - BOS
1 stop14h 59mAmerican Airlines
Deal found 7/27$673

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 July 29, 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

Mon 9/29

7:10 am-6:30 am

1 stop22h 20m

Santiago Arturo Merino Benitez

Sun 10/5

10:50 pm-4:01 pm

1 stop18h 11m

$505

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 10/26

9:55 am-6:00 am

1 stop19h 05m

Santiago Arturo Merino Benitez

Sat 11/8

1:35 am-6:35 am

1 stop31h 00m

$529

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 9/8

4:50 pm-11:30 pm

2 stops29h 40m

Santiago Arturo Merino Benitez

Sun 9/21

12:55 am-7:15 am

1 stop31h 20m

$531

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 11/10

1:32 pm-8:50 am

1 stop17h 18m

Santiago Arturo Merino Benitez

Mon 11/17

10:45 pm-3:17 pm

2 stops18h 32m

$532

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 9/8

8:41 am-3:42 am

1 stop18h 01m

Santiago Arturo Merino Benitez

Sun 9/21

3:26 am-7:22 pm

1 stop16h 56m

$552

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 8/24

4:55 pm-6:45 am

1 stop13h 50m

Santiago Arturo Merino Benitez

Fri 8/29

2:26 am-8:35 am

2 stops30h 09m

$655

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 9/11

9:00 am-11:30 pm

1 stop13h 30m

$243

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 8/21

3:25 pm-4:15 am

2 stops36h 50m

$249

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 8/19

4:55 pm-6:45 am

1 stop13h 50m

$254

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Fri 11/21

8:30 pm-7:00 am

1 stop32h 30m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results
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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 July 25, 2025.

Booking 36 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 July 29, 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: 9h 50m.

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 July 29, 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
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
1,821 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
1,493 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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!
Air Canada
7.1
Good
9,822 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

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 LATAM Airlines. Our recent data shows that you can find tickets from as low as $505 on this airline. Additional options worth looking into are Delta and Avianca, starting at $529 and $531 round-trip. LATAM Airlines is 41% 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 $243. LATAM Airlines flights start at $254 while deals on Delta start at $287 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 Wynwood Art District, Bayfront Park, or Bayside Marketplace. Wynwood Art District, Bayfront Park and Bayside Marketplace are located about 5.5 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 $25 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.
Boston to Punta Arenas flights
Hartford to Santiago 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$442Average$720FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$488Average$797FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$515Average$834FlexibilityNo cancel feeOn-time81%
DeltaCheapest$518Average$928FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$672Average$985FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$682Average$909FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$688Average$923FlexibilityNo cancel feeOn-time67%

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