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Santiago de los Caballeros

$184+ Cheap flights from Boston (BOS) to Santiago de los Caballeros (STI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — STI
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Find cheap flights from Boston to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Boston Logan Intl to Santiago de los Caballeros are usually found in May or October, booked 48 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Cheap flight deals from Boston to Santiago de los Caballeros

Cheapest flights from Boston to Santiago de los Caballeros
Explore the most affordable flight options available from Boston to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Expedia deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2911:59 pm
BOS
-
STI
Nonstop3h 50m
JetBlue
Sat 4/183:29 am
STI
-
BOS
Nonstop3h 51m
JetBlue
Deal found 1/21$362
This CheapOair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:59 pm
BOS
-
STI
Nonstop3h 50m
JetBlue
Tue 3/109:22 am
STI
-
BOS
1 stop23h 50m
JetBlue
Deal found 1/21$363
This Cheapflightsfares deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:27 am
BOS
-
STI
1 stop9h 08m
Spirit Airlines
Thu 3/123:43 pm
STI
-
BOS
1 stop8h 16m
Spirit Airlines
Deal found 1/21$364
This JetBlue deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:40 am
BOS
-
STI
1 stop9h 01m
JetBlue
Fri 3/133:10 am
STI
-
BOS
Nonstop4h 00m
JetBlue
Deal found 1/21$365
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:00 am
BOS
-
STI
2 stops32h 33m
Multiple Airlines
Tue 2/34:40 pm
STI
-
BOS
1 stop8h 17m
Multiple Airlines
Deal found 1/20$366
This CheapOair deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2811:34 pm
BOS
-
STI
Nonstop3h 50m
JetBlue
Fri 3/133:10 am
STI
-
BOS
Nonstop4h 00m
JetBlue
Deal found 1/20$367
This Mytrip deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/45:34 am
BOS
-
STI
1 stop8h 59m
Spirit Airlines
Mon 2/94:40 pm
STI
-
BOS
3 stops24h 38m
Spirit Airlines
Deal found 1/19$368
This CheapOair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:35 pm
BOS
-
STI
Nonstop3h 57m
JetBlue
Mon 3/210:31 am
STI
-
BOS
1 stop23h 41m
JetBlue
Deal found 1/21$369
This JetBlue deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/611:40 pm
BOS
-
STI
Nonstop3h 52m
JetBlue
Sun 2/156:45 am
STI
-
BOS
1 stop12h 43m
JetBlue
Deal found 1/20$370
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:49 am
BOS
-
STI
2 stops14h 41m
American Airlines
Tue 3/177:00 am
STI
-
BOS
2 stops12h 19m
American Airlines
Deal found 1/21$371
This Expedia deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:27 am
BOS
-
STI
1 stop9h 08m
Multiple Airlines
Mon 3/210:31 am
STI
-
BOS
1 stop23h 41m
Multiple Airlines
Deal found 1/20$373
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:32 pm
BOS
-
STI
1 stop18h 03m
Spirit Airlines
Fri 3/64:40 pm
STI
-
BOS
1 stop8h 04m
Spirit Airlines
Deal found 1/20$374

Find flight deals from Boston to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Santiago de los Caballeros (STI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$362
(Expedia)

One-way from

$184
(Cheapflightsfares)

Popular in

December

Cheapest in

May

Average price

$452

Good round-trip deal

$430 or less

Good one-way deal

$228 or less
Provider with most accurate pricing for Boston Logan Intl-Santiago de los Caballeros flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Santiago de los Caballeros flights.
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From Boston Logan Intl to Santiago de los Caballeros
Search Deals
One-way flight from Boston Logan Intl to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Santiago de los Caballeros.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Santiago de los Caballeros.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Santiago de los Caballeros 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, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Boston to Santiago de los Caballeros that are best for you.

Fly from

Boston

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sat 2/28

11:34 pm-4:24 am

Nonstop3h 50m

Santiago de los Caballeros

Fri 3/6

11:16 am-5:15 pm

1 stop6h 59m

$370

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Wed 2/11

8:00 am-12:56 pm

Nonstop3h 56m

Santiago de los Caballeros

Thu 2/26

7:00 am-10:00 am

Nonstop4h 00m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sun 3/15

11:59 pm-3:49 am

Nonstop3h 50m

Santiago de los Caballeros

Sat 3/28

10:30 am-2:31 pm

Nonstop4h 01m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Fri 6/5

11:15 pm-3:10 am

Nonstop3h 55m

Santiago de los Caballeros

Mon 6/29

3:10 am-7:09 am

Nonstop3h 59m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Thu 4/23

10:20 pm-2:07 am

Nonstop3h 47m

Santiago de los Caballeros

Fri 5/8

3:34 am-7:25 am

Nonstop3h 51m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sat 1/31

7:45 am-12:41 pm

Nonstop3h 56m

Santiago de los Caballeros

Tue 2/17

4:25 am-7:25 am

Nonstop4h 00m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Thu 2/19

8:35 pm-1:32 am

Nonstop3h 57m

Santiago de los Caballeros

Tue 3/10

6:00 am-9:57 am

Nonstop3h 57m

$382

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Wed 2/11

6:00 am-8:34 pm

1 stop13h 34m

Santiago de los Caballeros

Thu 2/26

9:59 pm-7:30 am

1 stop10h 31m

$387

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Fri 2/27

10:03 am-1:34 am

1 stop14h 31m

Santiago de los Caballeros

Tue 3/10

6:33 am-3:09 pm

1 stop8h 36m

$387

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Fri 2/20

10:03 am-8:34 pm

1 stop9h 31m

Santiago de los Caballeros

Wed 2/25

6:39 am-3:15 pm

1 stop9h 36m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 18 results
1
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Compare providers for flights from Boston to Santiago de los Caballeros

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Santiago de los Caballeros in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Santiago de los Caballeros flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Boston-Santiago de los Caballeros flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Boston-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Santiago de los Caballeros flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Santiago de los Caballeros flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Santiago de los Caballeros

How far ahead should I book a flight from Boston to Santiago de los Caballeros?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Santiago de los Caballeros. Price data was last updated on January 16, 2026.

The price you pay for your flight from Boston to Santiago de los Caballeros may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Santiago de los Caballeros?

Currently, November is the cheapest month in which you can book a flight from Boston to Santiago de los Caballeros (average of $215). Flying from Boston to Santiago de los Caballeros in June is currently the most expensive (average of $364). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to STI?

Find hourly flight availability from Boston to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2026.

One of the essential ways to save on airfare from Boston to Santiago de los Caballeros is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 28% on airfare.

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago de los Caballeros. Reviews last updated January 21, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Boston to Santiago de los Caballeros have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,089 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,191 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,174 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,890 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,364 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Santiago de los Caballeros. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Boston to Santiago de los Caballeros?

    Santiago de los Caballeros is the airport most travelers will use when flying to Santiago de los Caballeros from Boston Logan Intl. Booking flights from Logan Intl (BOS) to Santiago (STI) should be relatively easy as there are 2 daily flights to Santiago de los Caballeros from 6 different airlines. 3h 45m is how long a flight from Boston to Santiago de los Caballeros will take if you book a nonstop flight.

  • How popular is this Boston to Santiago de los Caballeros flight route?

    Flights from Boston Logan Intl to Santiago de los Caballeros have been viewed 12 times in the past calendar month.

  • How long is the flight from Boston to Santiago de los Caballeros?

    There are many flights that can get you from Boston to Santiago de los Caballeros in 3h 50m. Fly via JetBlue to get the fastest option. There are 1585 mi between Boston and Santiago de los Caballeros. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Boston to Santiago de los Caballeros round-trip?

    Currently priced at $89, Frontier will fly you from Boston to Santiago de los Caballeros and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and United Airlines - these airlines can fly you to your destination from $241 and $329, respectively. Frontier is priced at 83% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to Santiago de los Caballeros one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $91. However, be on the lookout for offers from Delta and Spirit Airlines, as they are both options that can get you from Boston to Santiago de los Caballeros for a low price.

  • What are the cheapest flights from Boston to Santiago de los Caballeros?

    Looking for the cheapest flight from Boston to Santiago de los Caballeros? While on average our users pay $380, our data indicates the cheapest price to be $185. The most popular route (Boston Logan Intl - Santiago de los Caballeros), is priced around $260.

  • Can I find deals for flights from Boston to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Boston to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Santiago de los Caballeros.

  • Can I find deals for business class flights from Boston to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Boston to Santiago de los Caballeros by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Santiago de los Caballeros?

    Currently, November is the cheapest month in which you can book a flight from Boston to Santiago de los Caballeros (average of $215). Flying from Boston to Santiago de los Caballeros in June is currently the most expensive (average of $364). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Boston to Santiago de los Caballeros

Discover the top 6 airlines that operate flights from Boston to Santiago de los Caballeros. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$429FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$241Average$399FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$329Average$401FlexibilityNo cancel feeOn-time69%
DeltaCheapest$367Average$390FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$375Average$545FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$388Average$515FlexibilityNo cancel feeOn-time71%

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