Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Santiago from $243

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 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Santiago

Cheap round-trip flights

LATAM Airlines Logo
3:24 pm - 6:30 amBOS-SCL
14h 06m1 stop
LATAM Airlines Logo
10:55 pm - 3:21 pmSCL-BOS
17h 26m1 stop
$505LATAM Airlines
Find Deal
Mon, Sep 29 - Sun, Oct 5
LATAM Airlines Logo
3:24 pm - 6:30 amBOS-SCL
14h 06m1 stop
LATAM Airlines Logo
10:55 pm - 2:59 pmSCL-BOS
17h 04m1 stop
$507LATAM Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
Avianca Logo
4:50 pm - 1:25 pmBOS-SCL
20h 35m2 stops
Avianca Logo
3:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$527Avianca
Find Deal
Fri, Sep 5 - Sun, Sep 28
Avianca Logo
9:00 am - 5:15 amBOS-SCL
19h 15m1 stop
Avianca Logo
12:55 am - 7:15 amSCL-BOS
31h 20m1 stop
$529Avianca
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
3:00 pm - 7:50 amBOS-SCL
15h 50m1 stop
Delta Logo
5:55 pm - 2:59 pmSCL-BOS
22h 04m2 stops
$531Delta
Find Deal
Thu, Sep 11 - Wed, Sep 24
Delta Logo
9:55 am - 1:45 amBOS-SCL
14h 50m1 stop
Delta Logo
8:45 pm - 2:59 pmSCL-BOS
19h 14m2 stops
$532Delta
Find Deal
Thu, Sep 11 - Wed, Sep 24
American Airlines Logo
1:55 pm - 7:55 amBOS-SCL
17h 00m2 stops
American Airlines Logo
9:55 pm - 2:23 pmSCL-BOS
17h 28m2 stops
$546American Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 24
American Airlines Logo
12:54 pm - 6:55 amBOS-SCL
18h 01m2 stops
American Airlines Logo
9:55 pm - 3:09 pmSCL-BOS
17h 14m2 stops
$548American Airlines
Find Deal
Mon, Aug 25 - Sat, Aug 30
Copa Airlines Logo
8:41 am - 4:58 amBOS-SCL
20h 17m1 stop
Copa Airlines Logo
3:26 am - 7:22 pmSCL-BOS
16h 56m1 stop
$552Copa Airlines
Find Deal
Tue, Sep 2 - Mon, Sep 8
Copa Airlines Logo
8:41 am - 10:40 pmBOS-SCL
13h 59m1 stop
Copa Airlines Logo
1:24 am - 7:22 pmSCL-BOS
18h 58m1 stop
$572Copa Airlines
Find Deal
Fri, Sep 5 - Sat, Sep 27

LATAM Airlines flights from Boston to Santiago

Our best LATAM Airlines deals on Boston to Santiago flight tickets
LATAM Airlines
Sep 29
BOS3:24 pmBoston Logan Intl
14h 06m
1 stop
SCL6:30 amSantiago Arturo Merino Benitez
Oct 5
SCL10:55 pmSantiago Arturo Merino Benitez
17h 26m
1 stop
BOS3:21 pmBoston Logan Intl
$505
Find similar
LATAM Airlines
Sep 29
BOS3:24 pmBoston Logan Intl
14h 06m
1 stop
SCL6:30 amSantiago Arturo Merino Benitez
Oct 3
SCL10:55 pmSantiago Arturo Merino Benitez
17h 04m
1 stop
BOS2:59 pmBoston Logan Intl
$507
Find similar
LATAM Airlines
Aug 29
BOS1:25 pmBoston Logan Intl
17h 20m
1 stop
SCL6:45 amSantiago Arturo Merino Benitez
Sep 5
SCL11:05 pmSantiago Arturo Merino Benitez
16h 03m
1 stop
BOS3:08 pmBoston Logan Intl
$512
Find similar

Copa Airlines flights from Boston to Santiago

Our best Copa Airlines deals on Boston to Santiago flight tickets
Copa Airlines
Sep 2
BOS8:41 amBoston Logan Intl
20h 17m
1 stop
SCL4:58 amSantiago Arturo Merino Benitez
Sep 8
SCL3:26 amSantiago Arturo Merino Benitez
16h 56m
1 stop
BOS7:22 pmBoston Logan Intl
$552
Find similar
Copa Airlines
Sep 5
BOS8:41 amBoston Logan Intl
13h 59m
1 stop
SCL10:40 pmSantiago Arturo Merino Benitez
Sep 27
SCL1:24 amSantiago Arturo Merino Benitez
18h 58m
1 stop
BOS7:22 pmBoston Logan Intl
$572
Find similar
Copa Airlines
Aug 29
BOS8:44 amBoston Logan Intl
14h 24m
1 stop
SCL11:08 pmSantiago Arturo Merino Benitez
Sep 4
SCL12:13 amSantiago Arturo Merino Benitez
19h 09m
1 stop
BOS7:22 pmBoston Logan Intl
$592
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 July 31, 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 9/29

3:24 pm-6:30 am

1 stop14h 06m

Santiago Arturo Merino Benitez

Sun 10/5

10:55 pm-3:21 pm

1 stop17h 26m

$505

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 9/29

3:24 pm-6:30 am

1 stop14h 06m

Santiago Arturo Merino Benitez

Fri 10/3

10:55 pm-2:59 pm

1 stop17h 04m

$507

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Fri 9/5

4:50 pm-1:25 pm

2 stops20h 35m

Santiago Arturo Merino Benitez

Sun 9/28

3:30 pm-2:55 pm

2 stops24h 25m

$527

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 9/16

9:00 am-5:15 am

1 stop19h 15m

Santiago Arturo Merino Benitez

Tue 9/23

12:55 am-7:15 am

1 stop31h 20m

$529

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 9/11

3:00 pm-7:50 am

1 stop15h 50m

Santiago Arturo Merino Benitez

Wed 9/24

5:55 pm-2:59 pm

2 stops22h 04m

$531

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 9/11

9:55 am-1:45 am

1 stop14h 50m

Santiago Arturo Merino Benitez

Wed 9/24

8:45 pm-2:59 pm

2 stops19h 14m

$532

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Thu 9/11

1:55 pm-7:55 am

2 stops17h 00m

Santiago Arturo Merino Benitez

Wed 9/24

9:55 pm-2:23 pm

2 stops17h 28m

$546

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 8/25

12:54 pm-6:55 am

2 stops18h 01m

Santiago Arturo Merino Benitez

Sat 8/30

9:55 pm-3:09 pm

2 stops17h 14m

$548

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 9/2

8:41 am-4:58 am

1 stop20h 17m

Santiago Arturo Merino Benitez

Mon 9/8

3:26 am-7:22 pm

1 stop16h 56m

$552

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Fri 9/5

8:41 am-10:40 pm

1 stop13h 59m

Santiago Arturo Merino Benitez

Sat 9/27

1:24 am-7:22 pm

1 stop18h 58m

$572

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, November 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 $753. If you don’t want to visit Santiago in November, then you should wait until September to fly from Boston, when ticket prices are also cheap, with an average price of $762.

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 $864 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 $695 on momondo.

Can stopping save me money on Boston to Santiago flights?

You could potentially save up to 33% 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 July 2025, prices for Boston to Santiago flights are approximately 27% 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

Best Price Found

$243

Fastest flight time

13h 30m

Direct flights

None

Airports in Santiago

1 airport
The best one-way flight to Santiago from Boston in the past 72 hours is $243. The best round-trip flight deal from Boston to Santiago found on momondo in the last 72 hours is $505.
The fastest flight from Boston to Santiago takes 13h 30m
There are no direct flights from Boston to Santiago. Popular non-direct route for this connection is Boston Logan Intl Airport - Santiago Arturo Merino Benitez Airport.
There is 1 airport near Santiago: Santiago Arturo Merino Benitez (SCL)
Search flight deals

  • 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 55m, 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
2,388 reviews
Search Avianca flights
Copa AirlinesPriceFrom $488Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $515Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines flights
DeltaPriceFrom $518Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $672Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $682Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $688Free CancellationRating
7.1
9,851 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.

An easier way to manage your Santiago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/5
Tue 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chile