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Cheap flights from Boston to Santiago from $218

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 1/18. 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

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Find the cheapest flights from Boston to Santiago

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
3:30 pm - 7:40 am
BOS
-
SCL
14h 10m1 stop
LATAM Airlines Logo
11:10 pm - 6:54 pm
SCL
-
BOS
21h 44m1 stop
$530LATAM Airlines
Sun, Jan 25 - Sun, Feb 1
LATAM Airlines Logo
1:55 pm - 5:55 am
BOS
-
SCL
15h 00m1 stop
LATAM Airlines Logo
10:35 am - 11:33 pm
SCL
-
BOS
13h 58m1 stop
$534LATAM Airlines
Sun, Mar 8 - Sat, Mar 14
LATAM Airlines Logo
8:55 pm - 7:00 am
BOS
-
SCL
32h 05m2 stops
LATAM Airlines Logo
11:10 pm - 8:31 pm
SCL
-
BOS
23h 21m1 stop
$549LATAM Airlines
Tue, Jan 6 - Tue, Jan 27
LATAM Airlines Logo
9:05 am - 5:55 am
BOS
-
SCL
19h 50m1 stop
LATAM Airlines Logo
10:25 pm - 11:33 pm
SCL
-
BOS
26h 08m2 stops
$556LATAM Airlines
Sun, Mar 8 - Sat, Mar 14
Multiple Airlines Logo
2:16 pm - 5:55 am
BOS
-
SCL
14h 39m1 stop
Multiple Airlines Logo
10:35 am - 11:33 pm
SCL
-
BOS
13h 58m1 stop
$558Multiple Airlines
Sun, Mar 8 - Sat, Mar 14
United Airlines Logo
7:05 am - 8:50 am
BOS
-
SCL
23h 45m1 stop
United Airlines Logo
10:45 pm - 6:13 pm
SCL
-
BOS
21h 28m1 stop
$564United Airlines
Sun, Feb 8 - Mon, Feb 16
United Airlines Logo
5:45 am - 8:50 am
BOS
-
SCL
25h 05m2 stops
United Airlines Logo
10:45 pm - 3:12 pm
SCL
-
BOS
18h 27m2 stops
$569United Airlines
Sun, Feb 8 - Mon, Feb 16
Multiple Airlines Logo
11:40 am - 5:55 am
BOS
-
SCL
17h 15m1 stop
Multiple Airlines Logo
10:25 pm - 11:33 pm
SCL
-
BOS
26h 08m2 stops
$572Multiple Airlines
Sun, Mar 8 - Sat, Mar 14
Multiple Airlines Logo
8:30 pm - 5:55 am
BOS
-
SCL
31h 25m1 stop
Multiple Airlines Logo
6:30 pm - 2:54 pm
SCL
-
BOS
21h 24m2 stops
$578Multiple Airlines
Sat, Mar 7 - Sun, Mar 15
LATAM Airlines Logo
8:55 am - 10:10 am
BOS
-
SCL
23h 15m1 stop
LATAM Airlines Logo
11:55 pm - 7:15 am
SCL
-
BOS
32h 20m1 stop
$591LATAM Airlines
Mon, Jan 19 - Fri, Apr 3

Delta flights from Boston to Santiago

Our best Delta deals on Boston to Santiago flight tickets
Delta
Mar 12
BOS9:05 amBoston Logan Intl
19h 50m
1 stop
SCL5:55 amSantiago Arturo Merino Benitez
Mar 21
SCL10:35 amSantiago Arturo Merino Benitez
13h 58m
1 stop
BOS11:33 pmBoston Logan Intl
$635
Find similar
Delta
Jan 18
BOS11:12 amBoston Logan Intl
16h 23m
2 stops
SCL5:35 amSantiago Arturo Merino Benitez
Apr 3
SCL11:00 pmSantiago Arturo Merino Benitez
20h 27m
2 stops
BOS6:27 pmBoston Logan Intl
$640
Find similar
Delta
Jan 19
BOS8:55 amBoston Logan Intl
24h 45m
1 stop
SCL11:40 amSantiago Arturo Merino Benitez
Apr 7
SCL4:25 pmSantiago Arturo Merino Benitez
15h 10m
1 stop
BOS7:35 amBoston Logan Intl
$645
Find similar

United Airlines flights from Boston to Santiago

Our best United Airlines deals on Boston to Santiago flight tickets
United Airlines
Feb 8
BOS7:05 amBoston Logan Intl
23h 45m
1 stop
SCL8:50 amSantiago Arturo Merino Benitez
Feb 16
SCL10:45 pmSantiago Arturo Merino Benitez
21h 28m
1 stop
BOS6:13 pmBoston Logan Intl
$564
Find similar
United Airlines
Feb 8
BOS5:45 amBoston Logan Intl
25h 05m
2 stops
SCL8:50 amSantiago Arturo Merino Benitez
Feb 16
SCL10:45 pmSantiago Arturo Merino Benitez
18h 27m
2 stops
BOS3:12 pmBoston Logan Intl
$569
Find similar
United Airlines
Feb 5
BOS5:45 amBoston Logan Intl
25h 05m
2 stops
SCL8:50 amSantiago Arturo Merino Benitez
Feb 19
SCL10:45 pmSantiago Arturo Merino Benitez
21h 28m
1 stop
BOS6:13 pmBoston Logan Intl
$619
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 December 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

Sun 1/25

3:30 pm-7:40 am

1 stop14h 10m

Santiago Arturo Merino Benitez

Sun 2/1

11:10 pm-6:54 pm

1 stop21h 44m

$530

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 3/8

1:55 pm-5:55 am

1 stop15h 00m

Santiago Arturo Merino Benitez

Sat 3/14

10:35 am-11:33 pm

1 stop13h 58m

$534

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Tue 1/6

8:55 pm-7:00 am

2 stops32h 05m

Santiago Arturo Merino Benitez

Tue 1/27

11:10 pm-8:31 pm

1 stop23h 21m

$549

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 3/8

9:05 am-5:55 am

1 stop19h 50m

Santiago Arturo Merino Benitez

Sat 3/14

10:25 pm-11:33 pm

2 stops26h 08m

$556

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 3/8

2:16 pm-5:55 am

1 stop14h 39m

Santiago Arturo Merino Benitez

Sat 3/14

10:35 am-11:33 pm

1 stop13h 58m

$558

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 2/8

7:05 am-8:50 am

1 stop23h 45m

Santiago Arturo Merino Benitez

Mon 2/16

10:45 pm-6:13 pm

1 stop21h 28m

$564

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 2/8

5:45 am-8:50 am

2 stops25h 05m

Santiago Arturo Merino Benitez

Mon 2/16

10:45 pm-3:12 pm

2 stops18h 27m

$569

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sun 3/8

11:40 am-5:55 am

1 stop17h 15m

Santiago Arturo Merino Benitez

Sat 3/14

10:25 pm-11:33 pm

2 stops26h 08m

$572

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Sat 3/7

8:30 pm-5:55 am

1 stop31h 25m

Santiago Arturo Merino Benitez

Sun 3/15

6:30 pm-2:54 pm

2 stops21h 24m

$578

BostonSantiago

BOS - SCL

BOSSCL

Boston Logan Intl

Mon 1/19

8:55 am-10:10 am

1 stop23h 15m

Santiago Arturo Merino Benitez

Fri 4/3

11:55 pm-7:15 am

1 stop32h 20m

$591

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 typical price of a round-trip flight between Boston and Santiago?

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 $668. 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 $675.

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 $861 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 $713 on momondo.

How have Boston to Santiago flight prices changed over time?

As of December 2025, prices for Boston to Santiago flights are approximately 31% 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

Fastest flight time

13h 10m

Direct flights

None
The fastest flight from Boston to Santiago takes 13h 10m
There are no direct flights from Boston to Santiago. There are no popular flight routes from Boston to Santiago.
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 10m, 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
DeltaPriceFrom $513Free CancellationRating
7.9
8,005 reviews
Search Delta flights
LATAM AirlinesPriceFrom $513Free CancellationRating
7.5
1,888 reviews
Search LATAM Airlines flights
AviancaPriceFrom $525Free CancellationRating
6.6
2,480 reviews
Search Avianca flights
Copa AirlinesPriceFrom $531Free CancellationRating
7.6
1,558 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $544Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $568Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Air CanadaPriceFrom $694Free CancellationRating
7.1
10,516 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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