BOS - SCL

$270 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 5/5. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Santiago

 
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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Boston to Santiago

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Santiago.
Discover the best prices for you by selecting your travel dates on KAYAK.
Avianca Logo
4:50 pm - 11:30 pmBOS-SCL
29h 40m2 stops
Avianca Logo
3:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$572Avianca
Find Deal
Mon, Sep 29 - Sun, Oct 5
Avianca Logo
4:50 pm - 2:25 pmBOS-SCL
20h 35m2 stops
Avianca Logo
3:30 pm - 7:15 amSCL-BOS
16h 45m1 stop
$614Avianca
Find Deal
Sun, Sep 7 - Wed, Oct 1
Avianca Logo
4:50 pm - 1:25 pmBOS-SCL
20h 35m2 stops
Avianca Logo
2:30 pm - 2:55 pmSCL-BOS
24h 25m2 stops
$615Avianca
Find Deal
Mon, Aug 25 - Tue, Sep 2
LATAM Airlines Logo
9:55 am - 3:10 amBOS-SCL
17h 15m1 stop
LATAM Airlines Logo
7:40 pm - 11:04 pmSCL-BOS
27h 24m2 stops
$726LATAM Airlines
Find Deal
Thu, May 15 - Mon, May 19
LATAM Airlines Logo
8:45 pm - 6:50 amBOS-SCL
34h 05m2 stops
LATAM Airlines Logo
8:30 pm - 11:04 pmSCL-BOS
26h 34m2 stops
$749LATAM Airlines
Find Deal
Wed, May 14 - Wed, May 21
Copa Airlines Logo
8:41 am - 12:04 amBOS-SCL
14h 23m1 stop
Copa Airlines Logo
1:12 am - 7:22 pmSCL-BOS
19h 10m1 stop
$792Copa Airlines
Find Deal
Sun, Sep 7 - Tue, Sep 30
Copa Airlines Logo
8:41 am - 2:43 amBOS-SCL
18h 02m1 stop
Copa Airlines Logo
3:23 am - 7:22 pmSCL-BOS
16h 59m1 stop
$812Copa Airlines
Find Deal
Fri, Sep 5 - Sat, Sep 27
American Airlines Logo
6:15 pm - 7:05 amBOS-SCL
12h 50m1 stop
American Airlines Logo
9:55 pm - 8:50 pmSCL-BOS
22h 55m1 stop
$854American Airlines
Find Deal
Mon, Aug 25 - Tue, Sep 2
American Airlines Logo
2:30 pm - 7:05 amBOS-SCL
16h 35m2 stops
American Airlines Logo
9:55 pm - 11:47 pmSCL-BOS
25h 52m1 stop
$956American Airlines
Find Deal
Sun, Aug 3 - Sat, Aug 9
Delta Logo
10:10 am - 7:00 amBOS-SCL
20h 50m1 stop
Delta Logo
8:40 pm - 8:35 pmSCL-BOS
23h 55m1 stop
$2,054Delta
Find Deal
Sun, Jul 20 - Sat, Jul 26
Useful Info

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 $714 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,113 and $962 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonMay
High seasonDecember
Cheapest flight$270
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 26% 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 $270 for a one-way ticket and $572 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, SkyTeam, and oneworld are the airline alliances operating flights between Boston and Santiago, with oneworld being the most commonly used for this route.

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

    Atlanta 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 $953 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 $907 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.

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 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

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 didn’t have any entertainment. I tried to go online without success. The airplane was extremely cold and they didn’t have blankets.

It was good, however the airplane was really cold. We received snacks and the crew was friendly.

Delta has an outstanding service. They are courteous and punctual most of the time. The flight departed a half hour late but we arrived 15 minutes early.

Although the flight is goof and the crew is good, the way the airline charges you for every service is ridiculous.

Plane never left the ground. Mech issues - entire trip was rerouted through united.

I liked everything, this was classed as premium economy but it was much better than Lufthansas business class. Lovely staff, comfortable plane and an excellent seat arrangement. A very pleasant surprise.

Everything was good except the check in. Could not do it online neither on the machines in the airport. Needed special assistance from the airline desk clerk

No entertainment but not expected. Unless you are referring to monitor that you can use. Then Al, was fine on all flights.

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

My flight delayed and i misss the connection they send me to orlando no to tampa i have to pay a uber to my house

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

The flight was delayed about 4 hours without any explanation. No wifi or entertainment at all on planes. Had to pay for checked bags I was allowed according to reservations.

It was good, plane is a bit older so seats are somewhat flat

Great from check in all the way to the end. Very happy with Copa

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

Friendly flight team and seamless travel from one stop to next.

I loved my experience. Very safe, Very informative and very friendly.

At JFK the Security line was extremely long and few checkpoints open.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

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

i think the flight was late because they were so strict about measuring everyone's personal items to try and charge them $119. It was really petty and made us late.

A few years ago long flights 6 hours or so used to have video screens and they offered ear phones. The food cart used to come and drinks. Now absolutely nothing. Avianca is as bad as Spirit Airlines. Avianca will now be my last choice when booking my next flight.

Purchased a business class ticket and got a economy seat with center seat blocked they call it business. 3100usd ticket on a flight where economy costs 500usd The biggest scam insult have had on a regular airline. Avianca should be in the low cost category and kicked out of Star Alliance. I want the difference to be credited. Ets see what Avianca does. No reply so far. Avianca = low cost airline. Beware

Excellent flight and one of the smoothest landing I’ve ever experienced

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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