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Cheap flights from Boston to Santiago from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Santiago departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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LATAM Airlines Logo
3:50 pm - 2:10 pmBOS-SCL
21h 20m2 stops
LATAM Airlines Logo
4:35 am - 12:59 amSCL-BOS
21h 24m2 stops
$544LATAM Airlines
Find Deal
Sun, Mar 15 - Wed, Mar 25
LATAM Airlines Logo
7:10 am - 5:50 amBOS-SCL
20h 40m2 stops
LATAM Airlines Logo
8:50 pm - 2:59 pmSCL-BOS
20h 09m2 stops
$545LATAM Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Copa Airlines Logo
7:34 am - 6:01 amBOS-SCL
20h 27m1 stop
Copa Airlines Logo
1:29 am - 10:40 pmSCL-BOS
23h 11m1 stop
$572Copa Airlines
Find Deal
Sat, Nov 29 - Fri, Dec 5
Avianca Logo
7:55 am - 5:30 amBOS-SCL
19h 35m1 stop
Avianca Logo
4:25 pm - 6:35 amSCL-BOS
16h 10m1 stop
$589Avianca
Find Deal
Thu, Feb 19 - Wed, Mar 4
Avianca Logo
7:55 am - 5:30 amBOS-SCL
19h 35m1 stop
Avianca Logo
4:25 pm - 6:35 amSCL-BOS
16h 10m1 stop
$648Avianca
Find Deal
Thu, Feb 19 - Wed, Mar 4
Copa Airlines Logo
7:34 am - 12:06 amBOS-SCL
14h 32m1 stop
Copa Airlines Logo
3:23 am - 10:03 pmSCL-BOS
20h 40m1 stop
$652Copa Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 16
Delta Logo
1:55 pm - 7:00 amBOS-SCL
15h 05m1 stop
Delta Logo
10:35 am - 10:24 amSCL-BOS
25h 49m1 stop
$655Delta
Find Deal
Wed, Feb 25 - Sun, Mar 1
American Airlines Logo
1:40 pm - 9:00 amBOS-SCL
17h 20m2 stops
American Airlines Logo
8:50 pm - 11:51 amSCL-BOS
15h 01m1 stop
$666American Airlines
Find Deal
Mon, Jan 12 - Tue, Apr 14
Delta Logo
7:00 am - 5:35 amBOS-SCL
20h 35m1 stop
Delta Logo
11:15 pm - 12:48 pmSCL-BOS
14h 33m1 stop
$674Delta
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Thu, Feb 26 - Tue, Mar 24
American Airlines Logo
1:50 pm - 8:55 amBOS-SCL
17h 05m2 stops
American Airlines Logo
10:25 pm - 1:56 pmSCL-BOS
17h 31m2 stops
$679American Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 22

LATAM Airlines flights from Boston to Santiago

Our best LATAM Airlines deals on Boston to Santiago flight tickets
LATAM Airlines
Mar 15
BOS3:50 pmBoston Logan Intl
21h 20m
2 stops
SCL2:10 pmSantiago Arturo Merino Benitez
Mar 25
SCL4:35 amSantiago Arturo Merino Benitez
21h 24m
2 stops
BOS12:59 amBoston Logan Intl
$544
Find similar
LATAM Airlines
Nov 10
BOS7:10 amBoston Logan Intl
20h 40m
2 stops
SCL5:50 amSantiago Arturo Merino Benitez
Nov 17
SCL8:50 pmSantiago Arturo Merino Benitez
20h 09m
2 stops
BOS2:59 pmBoston Logan Intl
$545
Find similar
LATAM Airlines
Mar 1
BOS5:30 pmBoston Logan Intl
35h 30m
1 stop
SCL7:00 amSantiago Arturo Merino Benitez
Mar 25
SCL7:15 amSantiago Arturo Merino Benitez
32h 33m
2 stops
BOS2:48 pmBoston Logan Intl
$583
Find similar

Avianca flights from Boston to Santiago

Our best Avianca deals on Boston to Santiago flight tickets
Avianca
Feb 19
BOS7:55 amBoston Logan Intl
19h 35m
1 stop
SCL5:30 amSantiago Arturo Merino Benitez
Mar 4
SCL4:25 pmSantiago Arturo Merino Benitez
16h 10m
1 stop
BOS6:35 amBoston Logan Intl
$589
Find similar
Avianca
Nov 6
BOS7:55 amBoston Logan Intl
14h 35m
1 stop
SCL12:30 amSantiago Arturo Merino Benitez
Nov 12
SCL4:25 pmSantiago Arturo Merino Benitez
16h 10m
1 stop
BOS6:35 amBoston Logan Intl
$648
Find similar
Avianca
Nov 10
BOS9:30 amBoston Logan Intl
18h 00m
2 stops
SCL5:30 amSantiago Arturo Merino Benitez
Nov 16
SCL1:35 amSantiago Arturo Merino Benitez
31h 00m
1 stop
BOS6:35 amBoston Logan Intl
$890
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momondo 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
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

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 3/15

3:50 pm-2:10 pm

2 stops21h 20m

Santiago Arturo Merino Benitez

Wed 3/25

4:35 am-12:59 am

2 stops21h 24m

$544

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 11/10

7:10 am-5:50 am

2 stops20h 40m

Santiago Arturo Merino Benitez

Mon 11/17

8:50 pm-2:59 pm

2 stops20h 09m

$545

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sat 11/29

7:34 am-6:01 am

1 stop20h 27m

Santiago Arturo Merino Benitez

Fri 12/5

1:29 am-10:40 pm

1 stop23h 11m

$572

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 2/19

7:55 am-5:30 am

1 stop19h 35m

Santiago Arturo Merino Benitez

Wed 3/4

4:25 pm-6:35 am

1 stop16h 10m

$589

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 2/19

7:55 am-5:30 am

1 stop19h 35m

Santiago Arturo Merino Benitez

Wed 3/4

4:25 pm-6:35 am

1 stop16h 10m

$648

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 11/10

7:34 am-12:06 am

1 stop14h 32m

Santiago Arturo Merino Benitez

Sun 11/16

3:23 am-10:03 pm

1 stop20h 40m

$652

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Wed 2/25

1:55 pm-7:00 am

1 stop15h 05m

Santiago Arturo Merino Benitez

Sun 3/1

10:35 am-10:24 am

1 stop25h 49m

$655

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 1/12

1:40 pm-9:00 am

2 stops17h 20m

Santiago Arturo Merino Benitez

Tue 4/14

8:50 pm-11:51 am

1 stop15h 01m

$666

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 2/26

7:00 am-5:35 am

1 stop20h 35m

Santiago Arturo Merino Benitez

Tue 3/24

11:15 pm-12:48 pm

1 stop14h 33m

$674

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 12/8

1:50 pm-8:55 am

2 stops17h 05m

Santiago Arturo Merino Benitez

Mon 12/22

10:25 pm-1:56 pm

2 stops17h 31m

$679

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Santiago from

How to get the cheapest flight ticket from Boston to Santiago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Santiago?

In general, September is the cheapest month to fly from Boston to Santiago. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $688. If you don’t want to visit Santiago in September, then you should wait until October to fly from Boston, when ticket prices are also cheap, with an average price of $703.

What is the cheapest day to depart on your flight to Santiago?

The cheapest day to depart on your flight to Santiago is on a Sunday when prices can be found for as low as $836. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Santiago on Saturday is $947.

What is the cheapest time of day to depart on your flight to Santiago?

In the evening is the cheapest time of day to fly from Boston to Santiago when you can find flight prices for as low as $698. Flying to Santiago in the evening is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Santiago, so prices are often more expensive at around $1,076 per ticket.

How far in advance should I book a flight to Santiago?

You are more likely to see cheaper flights to Santiago from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Santiago for around $867 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago from Boston for as low as $693 on momondo.

Can stopping save me money on Boston to Santiago flights?

You could potentially save up to 20% on your flight if you consider stops on a Boston to Santiago flight.

How have Boston to Santiago flight prices changed over time?

As of October 2025, prices for Boston to Santiago flights are approximately 29% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Santiago

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Santiago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Santiago (BOS to SCL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Santiago

Direct flights

None
There are no direct flights from Boston to Santiago. There are no popular flight routes from Boston to Santiago.
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  • How far is Boston Logan Intl to Santiago Arturo Merino Benitez by plane?

    There are 5234.3 mi between Boston Logan Intl and Santiago Arturo Merino Benitez. Flights usually cover this in 13h 38m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Santiago Arturo Merino Benitez Airport?

    Prices for flights from Boston Logan Intl Airport to Santiago Arturo Merino Benitez Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Santiago Arturo Merino Benitez Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Santiago Arturo Merino Benitez Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Santiago Arturo Merino Benitez Airport.

  • What documentation or ID do you need to fly to Santiago Arturo Merino Benitez Airport?

    The travel and health documents you'll need for your trip to Santiago Arturo Merino Benitez Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santiago Arturo Merino Benitez Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Santiago?

Best airlines flying from Boston to Santiago

Compare and see reviews for airlines that fly from Boston to Santiago with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $442Free CancellationRating
6.6
2,467 reviews
Search Avianca flights
Copa AirlinesPriceFrom $459Free CancellationRating
7.6
1,561 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $513Free CancellationRating
7.5
1,873 reviews
Search LATAM Airlines flights
DeltaPriceFrom $517Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $544Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $673Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Air CanadaPriceFrom $694Free CancellationRating
7.1
10,381 reviews
Search Air Canada flights

Traveling to a place near Santiago?

Book flights to Santiago if you plan to visit one of these locations
Viña del Mar
Santa Cruz
Valparaíso
Valle Nevado
San Fernando
Pichilemu

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Santiago?

It is quick and easy to find Boston to Santiago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Santiago that suits you.

Can I find flights from Boston to Santiago with flexible booking policies on momondo?

momondo does allow users to show only those flights to Santiago from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Santiago?

momondo provides multiple filters to help you find the best flight to Santiago from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Santiago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Santiago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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