BOS - SCL

$234 Find Cheap Flights from Boston to Santiago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Santiago departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Santiago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Santiago.
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Cheap Flights from Boston to Santiago (BOS-SCL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Santiago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Santiago

Thu, Sep 4 - Thu, Sep 18
Avianca Logo
9:00 am - 4:15 amBOS-SCL
19h 15m1 stop
Avianca Logo
3:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$504Avianca
Find Deal
Wed, Oct 8 - Tue, Oct 21
Avianca Logo
4:50 pm - 11:30 pmBOS-SCL
29h 40m2 stops
Avianca Logo
3:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$506Avianca
Find Deal
Thu, Sep 25 - Sat, Oct 18
LATAM Airlines Logo
1:25 pm - 7:50 amBOS-SCL
17h 25m1 stop
LATAM Airlines Logo
10:55 pm - 3:26 pmSCL-BOS
17h 31m1 stop
$516LATAM Airlines
Find Deal
Wed, Jan 14 - Wed, Feb 18
LATAM Airlines Logo
7:00 am - 5:35 amBOS-SCL
20h 35m1 stop
LATAM Airlines Logo
11:40 pm - 11:21 amSCL-BOS
13h 41m1 stop
$518LATAM Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 24
Delta Logo
9:55 am - 1:45 amBOS-SCL
14h 50m1 stop
Delta Logo
3:15 pm - 7:35 amSCL-BOS
17h 20m1 stop
$529Delta
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Thu, Sep 11 - Wed, Sep 17
Copa Airlines Logo
8:41 am - 11:40 pmBOS-SCL
13h 59m1 stop
Copa Airlines Logo
1:24 am - 7:22 pmSCL-BOS
18h 58m1 stop
$532Copa Airlines
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Mon, Nov 10 - Mon, Nov 17
United Airlines Logo
5:17 pm - 8:50 amBOS-SCL
37h 33m1 stop
United Airlines Logo
10:45 pm - 3:17 pmSCL-BOS
18h 32m2 stops
$533United Airlines
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Fri, Sep 5 - Sun, Sep 28
Delta Logo
12:00 pm - 5:45 amBOS-SCL
17h 45m2 stops
Delta Logo
3:15 pm - 7:35 amSCL-BOS
17h 20m1 stop
$534Delta
Find Deal
Mon, Nov 10 - Mon, Nov 17
United Airlines Logo
9:50 am - 8:50 amBOS-SCL
21h 00m1 stop
United Airlines Logo
10:45 pm - 2:29 pmSCL-BOS
17h 44m2 stops
$535United Airlines
Find Deal
Thu, Sep 11 - Tue, Sep 23
Copa Airlines Logo
3:49 pm - 3:42 amBOS-SCL
34h 53m1 stop
Copa Airlines Logo
1:13 am - 7:22 pmSCL-BOS
19h 09m1 stop
$546Copa Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to Santiago flights

Get data-powered insights and trends into flights from Boston to Santiago to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Santiago?

The average price of all round-trip flights from Boston to Santiago clicked on KAYAK for each day over the last 12 months.

When flying from Boston to Santiago, you should consider leaving on a Sunday and avoid Saturdays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Boston to Santiago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Santiago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Santiago is September, where tickets cost $688 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $1,012 and $963 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Santiago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Santiago, you should book around 2 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$234
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 19% increase in price.
Flight from Boston to Santiago

When to book flights from Boston to Santiago

Are your dates flexible? Find out the best times to travel from Boston to Santiago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Santiago

  • What type of seats will I find on flights from Boston to Santiago with Delta Airlines?

    Delta Airlines offers several classes of seats on flights from Boston to Santiago. Basic Economy is a budget-friendly option while Main Cabin is Delta's standard economy class that offers a comfortable seat with complimentary snacks, and entertainment. Delta Comfort Plus offers additional legroom and priority boarding while First Class provides a premium experience with spacious seats, personal service, complimentary meals and beverages, priority boarding, and dedicated overhead bin space.

  • Which airline offers flights from Boston to Santiago with less carbon emissions?

    LATAM Airlines offers flights from Boston to Santiago and has taken various steps to reduce its carbon emissions. The airline has adopted sustainable aviation fuel (SAF) in its operations and is replacing its older, less efficient aircraft with newer and more fuel-efficient planes. The airline has also implemented ways to optimize flight paths and minimize fuel burn during takeoff and landing.

  • Which are the common layovers for flights from Boston to Santiago?

    Travelers who prefer to use connecting flights from Boston (BOS) to Santiago (SCL) can expect layovers in different cities depending on the airline they choose. LATAM Airlines has layovers in Lima (LIM) or Sao Paulo (GRU) while Delta Airlines offers a common layover option in Atlanta (ATL). The layover time will also vary depending on the day of travel and the airline.

  • What services are offered to economy class passengers on Spirit Airlines flights from Boston to Santiago?

    Economy class seats on Spirit Airline flights from Boston to Santiago typically have 28 inches of seat pitch, with the option to purchase upgraded seats with more legroom, which they call "Big Front Seats." Additional fees will apply for optional services such as seat selection, baggage, and inflight entertainment. Passengers can also purchase food and drinks during their flight through Spirit's onboard menu.

  • What is the cheapest flight from Boston to Santiago?

    In the last 3 days, the lowest price for a flight from Boston to Santiago was $234 for a one-way ticket and $504 for a round-trip.

  • Do I need a passport to fly between Boston and Santiago?

    Yes

  • Which aircraft models fly most regularly from Boston to Santiago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Santiago?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Boston and Santiago, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Santiago from Boston?

    Miami is the most popular layover city among KAYAK users traveling from Boston to Santiago.

  • Which is the best airline for flights from Boston to Santiago, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Santiago are Delta and LATAM Airlines. With an average price for the route of $928 and an overall rating of 8.0, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $826 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Boston to Santiago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Santiago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Santiago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santiago from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Santiago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santiago with an airline and back to Boston with another airline. Booking your flights between Boston and SCL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Santiago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santiago from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Santiago

  • American Airlines allows passengers to check one bag for free, with a weight limit of 50 pounds and a size limit of 62 linear inches for flights from Boston to Santiago. Passengers are also allowed to bring one carry-on bag and one personal item on board. The carry-on bag must not exceed the size limit of 22 by 14 by 9 inches, including handles and wheels.
  • Avianca Airlines offers special assistance for passengers with reduced mobility on flights from Boston to Santiago. These services include wheelchair service, assistance with mobility or medical equipment, and other services to ensure the safe and comfortable travel of passengers with limited mobility.
  • Families traveling with infants from Boston to Santiago should consider flying with JetBlue Airways. The airline offers priority boarding, free checked strollers and car seats, and pre-boarding for families with small children. Additionally, JetBlue's Mint class offers lie-flat seats with a privacy door, making it easier for parents to travel with infants.
  • Passengers can access other nearby cities from Arturo Merino Benitez International Airport (SCL). These include Valparaiso, Vina del Mar, Rancagua, San Antonio, and Pichilemu. These cities are accessible by flights, rental car or public transport options at SCL.
  • Pet owners who book flights from Boston to Santiago with Copa Airlines should be aware that only small cats and dogs are permitted in the cabin. Pets can also be transported either as checked or carry-on baggage.

Reviews of the top 5 airlines serving from Boston to Santiago

 
See real verified KAYAK customer reviews for airlines flying from Boston to Santiago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Santiago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7985 reviews
8.2Boarding
7.9Comfort
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

2.0 MediocreMichael, Aug 2025SLC - CDC
Read more Delta reviews

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

I was in the last row and they sent me to check in my luggage last minute after boarding. I had to go through the crowd.

We departed and landed on time, the aircraft was clean and comfortable, the crew were lovely. Online checkin worked well and the self service bag drop at the airport worked well. The a/c was an Airbus A330 and has been fitted with a good entertainment system with lots of choice in many languages. The price I paid for the flight was competitive with other airlines apart from the budget carriers, none of whom I was familiar with so I stuck to an airline I have used in previous visits to South America.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. Will never fly Copa again and will tell friends and family to avoid this airline.

We had a five hour layover in the way home from Colombia. I read the "bout your flight" email carefully before we checked bags. We had to go through security right at the gate. Almost lost our ground coffee because that airport only allows 16 ounce of coffee and we had 18. I've been to 48 countries and never heard of a coffee restriction. I can't follow a rule I don't know about. I requested they bring our coffee to our checked luggage. Instead tey gate checked our bag for free. Back to planning transfers in Dallas I guess

It was ok. However, the food was quite poor since I don't eat pasta.

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Pretty good. The food was just mediocre, the boarding and crew were good.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Sat on the ground in Cincinnati for 50 minutes before deplaning

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Crew should be nicer and emphatic with customers. Same cookies as the past 20 years. Seat are ok and the plane was clean though it was delayed.

Was not able to watch most shows on the entertainment site. They would not load

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

On Wednesday, July 30 we were in mid flight from Manchester to Charlotte and we turned around because the right engine was malfunctioning. That was the last flight out of Manchester that night. I was rebooked for Thursday, which became a weather event Friday. There were no seats left on the flight from Manchester to Charlotte. Consequently I didn’t leave Manchester until Saturday morning and we flew to Chicago so to say the least my scheduled flight and return to Iowa was three days off and it messed with my business schedule. Consequently cash flow. I would like some sort of acknowledgment of this event.

It was horrible. My experience with Avianca. I didn’t know it was Pakistan international Airlines but anyway, whatever it is it is bad horrible you guys need to upgrade everything in those planes. And you guys charge $130 for a carry-on did they wanna let me in with my carry-on that I travel everywhere with the luggage you guys are such a dog thank you

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

I receive a service for what I pay, so it is fair.

Terrible, We had to stay in Bogota for two days due to weather but the airline did not provide for the same day flight. Only two days later

There isn't much space in-between seats and even water needs to be paid for during the flight.

We did not know about the bag fees until check in. They are way too high. It’s insane. We also had a huge delay and everything costed extra which was very annoying.

Boarding was somewhat confusing in that the wrong messages were being displayed at the gate. It was somewhat annoying that I got off one flight and straight onto another (from the same gate), but in between they re-checked my hand luggage and made me get rid of my water (which they charge for on the plane). I was sitting in their 'Plus' seating, but the leg room was still too small to be able to sit square. The food options on the flights are pretty cheap quality (but not price). They got me from 'A' to 'B' on-time and for a relatively good price, but the experience itself was below average.

Lounge for business was closed. Boarding was rush and stand by. Seat for business is just the middle seat blocked and some more leg room.

Flew with our two children. Paid $380 to check two bags (one was overweight). They then left the bags behind on Sunday, December 21st, with all our family’s clothes and family Christmas presents. When we arrived at our destination they told us the bags had not arrived, and they thought (but didn’t know) they were still in Boston, but that there’d be a flight the next day and the bags would arrive the next day. The next day we found out there was no flight, now we’re hoping we get our bags before we fly back out. Meanwhile, trying to get any engagement or accurate information is a waste of time. The folks at the call center are just gatekeepers, who can’t connect with any departments that actually do things to solve a problem. Getting information is made deliberately difficult. My biggest regret is that I’ve had a number of awful experiences with Avianca traveling between the US and Colombia, and still let myself get suckered into buying these tickets because the schedule was great. Never again.

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