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Cheap flights from Boston to Santiago from $265

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 9/27. 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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Find the cheapest flights from Boston to Santiago

Cheap round-trip flights

Logo
4:54 pm - 10:15 pmBOS-SCL
28h 21m2 stops
Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$563
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Mon, Oct 6 - Mon, Oct 13
Logo
2:18 pm - 6:00 amBOS-SCL
38h 42m2 stops
Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$567
Find Deal
Sat, Oct 4 - Mon, Oct 13
Logo
2:18 pm - 11:20 amBOS-SCL
44h 02m2 stops
Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$568
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Thu, Sep 25 - Wed, Oct 1
Logo
4:54 pm - 10:15 pmBOS-SCL
28h 21m2 stops
Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$574
Find Deal
Mon, Oct 6 - Wed, Oct 15
Avianca Logo
3:25 pm - 12:30 amBOS-SCL
31h 05m2 stops
Avianca Logo
7:25 am - 6:35 amSCL-BOS
25h 10m1 stop
$628Avianca
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Sun, Nov 2 - Wed, Nov 12
Avianca Logo
8:55 am - 12:30 amBOS-SCL
14h 35m1 stop
Avianca Logo
4:25 pm - 6:35 amSCL-BOS
16h 10m1 stop
$632Avianca
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Sat, Nov 1 - Mon, Nov 17
Avianca Logo
4:50 pm - 2:25 pmBOS-SCL
20h 35m2 stops
Avianca Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$634Avianca
Find Deal
Wed, Oct 8 - Wed, Oct 15
Avianca Logo
4:50 pm - 2:25 pmBOS-SCL
20h 35m2 stops
Avianca Logo
3:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$635Avianca
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Sun, Oct 12 - Thu, Oct 16
LATAM Airlines Logo
9:55 am - 12:30 amBOS-SCL
37h 35m1 stop
LATAM Airlines Logo
12:10 am - 11:26 pmSCL-BOS
24h 16m2 stops
$640LATAM Airlines
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Mon, Sep 22 - Wed, Sep 24
LATAM Airlines Logo
7:00 am - 6:35 amBOS-SCL
21h 35m2 stops
LATAM Airlines Logo
5:25 pm - 6:35 amSCL-BOS
15h 10m1 stop
$680LATAM Airlines
Find Deal
Wed, Nov 19 - Tue, Nov 25

Avianca flights from Boston to Santiago

Our best Avianca deals on Boston to Santiago flight tickets
Avianca
Nov 2
BOS3:25 pmBoston Logan Intl
31h 05m
2 stops
SCL12:30 amSantiago Arturo Merino Benitez
Nov 12
SCL7:25 amSantiago Arturo Merino Benitez
25h 10m
1 stop
BOS6:35 amBoston Logan Intl
$628
Find similar
Avianca
Nov 1
BOS8:55 amBoston Logan Intl
14h 35m
1 stop
SCL12:30 amSantiago Arturo Merino Benitez
Nov 17
SCL4:25 pmSantiago Arturo Merino Benitez
16h 10m
1 stop
BOS6:35 amBoston Logan Intl
$632
Find similar
Avianca
Oct 8
BOS4:50 pmBoston Logan Intl
20h 35m
2 stops
SCL2:25 pmSantiago Arturo Merino Benitez
Oct 15
SCL3:30 pmSantiago Arturo Merino Benitez
16h 45m
1 stop
BOS7:15 amBoston Logan Intl
$634
Find similar

LATAM Airlines flights from Boston to Santiago

Our best LATAM Airlines deals on Boston to Santiago flight tickets
LATAM Airlines
Sep 15
BOS8:50 pmBoston Logan Intl
34h 00m
1 stop
SCL7:50 amSantiago Arturo Merino Benitez
Sep 17
SCL12:15 pmSantiago Arturo Merino Benitez
20h 20m
1 stop
BOS7:35 amBoston Logan Intl
$635
Find similar
LATAM Airlines
Sep 22
BOS9:55 amBoston Logan Intl
37h 35m
1 stop
SCL12:30 amSantiago Arturo Merino Benitez
Sep 24
SCL12:10 amSantiago Arturo Merino Benitez
24h 16m
2 stops
BOS11:26 pmBoston Logan Intl
$640
Find similar
LATAM Airlines
Nov 19
BOS7:00 amBoston Logan Intl
21h 35m
2 stops
SCL6:35 amSantiago Arturo Merino Benitez
Nov 25
SCL5:25 pmSantiago Arturo Merino Benitez
15h 10m
1 stop
BOS6:35 amBoston Logan Intl
$680
Find similar

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 September 11, 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

Mon 10/6

4:54 pm-10:15 pm

2 stops28h 21m

Santiago Arturo Merino Benitez

Mon 10/13

3:30 pm-7:15 am

1 stop16h 45m

$563

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sat 10/4

2:18 pm-6:00 am

2 stops38h 42m

Santiago Arturo Merino Benitez

Mon 10/13

3:30 pm-7:15 am

1 stop16h 45m

$567

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 9/25

2:18 pm-11:20 am

2 stops44h 02m

Santiago Arturo Merino Benitez

Wed 10/1

3:30 pm-7:15 am

1 stop16h 45m

$568

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 10/6

4:54 pm-10:15 pm

2 stops28h 21m

Santiago Arturo Merino Benitez

Wed 10/15

3:30 pm-7:15 am

1 stop16h 45m

$574

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 11/2

3:25 pm-12:30 am

2 stops31h 05m

Santiago Arturo Merino Benitez

Wed 11/12

7:25 am-6:35 am

1 stop25h 10m

$628

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sat 11/1

8:55 am-12:30 am

1 stop14h 35m

Santiago Arturo Merino Benitez

Mon 11/17

4:25 pm-6:35 am

1 stop16h 10m

$632

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Wed 10/8

4:50 pm-2:25 pm

2 stops20h 35m

Santiago Arturo Merino Benitez

Wed 10/15

3:30 pm-7:15 am

1 stop16h 45m

$634

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 10/12

4:50 pm-2:25 pm

2 stops20h 35m

Santiago Arturo Merino Benitez

Thu 10/16

3:30 pm-2:55 pm

2 stops24h 25m

$635

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 9/22

9:55 am-12:30 am

1 stop37h 35m

Santiago Arturo Merino Benitez

Wed 9/24

12:10 am-11:26 pm

2 stops24h 16m

$640

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Wed 11/19

7:00 am-6:35 am

2 stops21h 35m

Santiago Arturo Merino Benitez

Tue 11/25

5:25 pm-6:35 am

1 stop15h 10m

$680

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 November to fly from Boston, when ticket prices are also cheap, with an average price of $712.

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 $840 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 $730 on momondo.

Can stopping save me money on Boston to Santiago flights?

You could potentially save up to 25% 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 September 2025, prices for Boston to Santiago flights are approximately 17% 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 30m, 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
6.7
2,436 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $514Free CancellationRating
7.5
1,847 reviews
Search LATAM Airlines flights
DeltaPriceFrom $518Free CancellationRating
7.9
7,960 reviews
Search Delta flights
Copa AirlinesPriceFrom $521Free CancellationRating
7.6
1,531 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $548Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $672Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
Air CanadaPriceFrom $688Free CancellationRating
7.1
10,000 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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