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

The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $179. However, be on the lookout for offers from American Airlines and Spirit Airlines, as they are both options that can get you from Boston to Santiago de los Caballeros for a low price.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

What are the most popular airlines that fly from Boston to Santiago de los Caballeros?

Before booking your flight from Boston to Santiago de los Caballeros check out the most popular airlines for this route: American Airlines, JetBlue or Delta.

What is the cheapest day to fly round-trip from Boston to Santiago de los Caballeros?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 10% on your flight compared to booking on days when demand is much higher.

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

To save on the cost of your flight from Boston to Santiago de los Caballeros, book at least 21 days before your planned departure. Booking around this time can save you about 22% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $514 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $554.

What is the cheapest month to fly from Boston to Santiago de los Caballeros?

Our data shows that January tends to be the cheapest month to fly to Santiago de los Caballeros from Boston. Users have commonly found prices around $526 for the month, but tickets can be as low as $371. Due to multiple factors, prepare for potentially higher prices in December.

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 is 1 daily flight to Santiago de los Caballeros from 6 different airlines. 3h 49m is how long a flight from Boston to Santiago de los Caballeros will take if you book a nonstop flight.

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.

$179+ Flights from Boston to Santiago de los Caballeros

Q: How much does it cost to fly round-trip from Boston to Santiago de los Caballeros?

Airfare is below average for this route at the moment. Boston to Santiago de los Caballeros flights typically cost between $531 and $661 in August. The cheapest round-trip price found within the last 3 days was $416 on Spirit Airlines (Aug 23-Aug 26).

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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”

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Cheapflights Tip: The best prices from Boston Logan Intl to Santiago de los Caballeros are usually found in January or November, booked 82 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Boston to Santiago de los Caballeros

Round-trip from	$416 (FlightHub)
One-way from	$179 (JetBlue)
Popular in	December
Cheapest in	January
Average price	$661
Good round-trip deal	$516 or less
Good one-way deal	$206 or less

From Boston Logan Intl to Santiago de los Caballeros

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One-way flight from Boston Logan Intl to Santiago de los Caballeros

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Highest demand for flights based on searches. 8% potential increase in price ($46 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Boston Logan Intl to Santiago de los Caballeros.

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Price to beat on a one-way flight from Boston Logan Intl to Santiago de los Caballeros.

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Find 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 July 29, 2025.

Sat 8/2310:34 amBOS - STI

2 stops22h 41mSpirit Airlines

Wed 8/2710:20 amSTI - BOS

2 stops23h 19mSpirit Airlines

Deal found 7/29

$416

Tue 9/237:05 amBOS - STI

Nonstop3h 49mJetBlue

Sat 9/273:20 amSTI - BOS

1 stop8h 25mJetBlue

Deal found 7/28

$418

Thu 8/289:26 amBOS - STI

2 stops11h 22mAmerican Airlines

Thu 9/41:29 pmSTI - BOS

2 stops20h 41mAmerican Airlines

Deal found 7/29

$422

Fri 10/317:25 amBOS - STI

2 stops15h 26mUnited Airlines

Mon 11/312:52 pmSTI - BOS

2 stops11h 50mUnited Airlines

Deal found 7/29

$425

Best flights from Boston to Santiago de los Caballeros
Discover carefully curated flight deals from Boston to Santiago de los Caballeros that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 8/232:53 pmBOS - STI

2 stops18h 22mSpirit Airlines

Tue 8/2610:20 amSTI - BOS

2 stops23h 19mSpirit Airlines

Deal found 7/29

$416

Tue 9/237:05 amBOS - STI

Nonstop3h 49mJetBlue

Sun 9/285:15 amSTI - BOS

1 stop10h 54mJetBlue

Deal found 7/28

$418

Thu 8/289:26 amBOS - STI

2 stops11h 22mAmerican Airlines

Thu 9/41:29 pmSTI - BOS

2 stops20h 41mAmerican Airlines

Deal found 7/29

$422

Fri 10/317:25 amBOS - STI

2 stops15h 26mUnited Airlines

Mon 11/312:52 pmSTI - BOS

2 stops11h 50mUnited Airlines

Deal found 7/29

$425

Thu 8/2110:34 amBOS - STI

2 stops22h 41mMultiple Airlines

Thu 8/2810:20 amSTI - BOS

2 stops13h 34mMultiple Airlines

Deal found 7/29

$428

Last-minute flights from Boston to Santiago de los Caballeros
Discover last-minute flight deals from Boston to Santiago de los Caballeros. Data last updated July 29, 2025 and is based on user searches.

Sun 8/310:03 amBOS - STI

1 stop26h 48mMultiple Airlines

Mon 8/1810:20 amSTI - BOS

1 stop24h 58mMultiple Airlines

Deal found 7/28

$538

Wed 8/68:39 pmBOS - STI

1 stop13h 11mSpirit Airlines

Sat 8/3010:20 amSTI - BOS

1 stop13h 29mSpirit Airlines

Deal found 7/27

$417

Wed 8/66:21 amBOS - STI

2 stops14h 27mAmerican Airlines

Mon 9/81:29 pmSTI - BOS

2 stops18h 10mAmerican Airlines

Deal found 7/27

$433

Thu 8/79:01 amBOS - STI

2 stops27h 50mFrontier

Mon 8/112:06 pmSTI - BOS

2 stops17h 53mFrontier

Deal found 7/27

$525

Fri 8/85:14 amBOS - STI

1 stop6h 34mJetBlue

Fri 8/85:15 pmSTI - BOS

1 stop16h 32mJetBlue

Deal found 7/29

$451

Thu 8/2110:34 amBOS - STI

2 stops22h 41mMultiple Airlines

Sat 9/612:10 pmSTI - BOS

3 stops25h 38mMultiple Airlines

Deal found 7/29

$450

Sat 8/2310:34 amBOS - STI

2 stops22h 41mSpirit Airlines

Wed 8/2710:20 amSTI - BOS

2 stops23h 19mSpirit Airlines

Deal found 7/29

$416

Thu 8/289:45 pmBOS - STI

Nonstop3h 53mJetBlue

Fri 9/193:20 amSTI - BOS

1 stop12h 49mJetBlue

Deal found 7/29

$418

Thu 8/289:26 amBOS - STI

2 stops11h 22mAmerican Airlines

Thu 9/41:29 pmSTI - BOS

2 stops20h 41mAmerican Airlines

Deal found 7/29

$422

One-way flights from Boston to Santiago de los Caballeros
Search for one-way flight options from Boston to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Wed 8/276:00 amBOS - STI

Nonstop4h 03mJetBlue

Deal found 7/29

$179

Mon 9/17:00 amBOS - STI

1 stop13h 48mAmerican Airlines

Deal found 7/27

$182

Sun 9/286:49 pmBOS - STI

1 stop16h 16mSpirit Airlines

Deal found 7/28

$183

Wed 9/245:30 amBOS - STI

2 stops9h 42mUnited Airlines

Deal found 7/28

$204

Sat 8/234:38 pmBOS - STI

2 stops19h 38mMultiple Airlines

Deal found 7/27

$208

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sat 8/23

2:53 pm-9:15 am

2 stops18h 22m

Santiago de los Caballeros

Tue 8/26

10:20 am-9:39 am

2 stops23h 19m

$416

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Tue 9/23

7:05 am-10:54 am

Nonstop3h 49m

Santiago de los Caballeros

Sun 9/28

5:15 am-4:09 pm

1 stop10h 54m

$418

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Thu 8/28

9:26 am-8:48 pm

2 stops11h 22m

Santiago de los Caballeros

Thu 9/4

1:29 pm-10:10 am

2 stops20h 41m

$422

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Fri 10/31

7:25 am-10:51 pm

2 stops15h 26m

Santiago de los Caballeros

Mon 11/3

12:52 pm-11:42 pm

2 stops11h 50m

$425

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Thu 8/21

10:34 am-9:15 am

2 stops22h 41m

Santiago de los Caballeros

Thu 8/28

10:20 am-11:54 pm

2 stops13h 34m

$428

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Wed 8/27

6:00 am-10:03 am

Nonstop4h 03m

$179

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Mon 9/1

7:00 am-8:48 pm

1 stop13h 48m

$182

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sun 9/28

6:49 pm-11:05 am

1 stop16h 16m

$183

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Wed 9/24

5:30 am-3:12 pm

2 stops9h 42m

$204

BostonSantiago de los Caballeros

BOS - STI

BOSSTI

Boston Logan Intl

Sat 8/23

4:38 pm-12:16 pm

2 stops19h 38m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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?

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 82 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, May is the cheapest month in which you can book a flight from Boston to Santiago de los Caballeros (average of $347). Flying from Boston to Santiago de los Caballeros in July is currently the most expensive (average of $612). 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?

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 morning tend to be the most expensive. A flight at noon could potentially save you up to 3% on airfare.

What is the cheapest day to fly from Boston to Santiago de los Caballeros?

Travelers seeking maximum savings on their Boston to Santiago de los Caballeros flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Santiago de los Caballeros

The most flights from BOS to STI are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Boston to Santiago de los Caballeros?

What’s the top layover airport for flights from Boston to Santiago de los Caballeros?

Fort Lauderdale (FLL) – chosen by Cheapflights users on 67% of 1-stop itineraries from Boston to Santiago de los Caballeros on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Santiago de los Caballeros?

Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $451.

What’s the fastest layover option from Boston to Santiago de los Caballeros?

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 4h 43m.

Which airport typically offers the quickest layover for flights from Boston to Santiago de los Caballeros?

Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 45m.

Reviews of airlines servicing Santiago de los Caballeros

See what other customers who have flown with United Airlines, JetBlue, 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.

United Airlines

7.4

Good

8,893 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,893 reviews

United Airlines

7.4

Good

8,893 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

JetBlue

7.3

Good

2,913 reviews

United Airlines

7.4

Good

8,893 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,893 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Spirit Airlines

6.3

Okay

8,040 reviews

United Airlines

7.4

Good

8,893 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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 is 1 daily flight to Santiago de los Caballeros from 6 different airlines. 3h 49m is how long a flight from Boston to Santiago de los Caballeros will take if you book a nonstop flight.
What are the cheapest airlines flying from Boston to Santiago de los Caballeros round-trip?
Currently priced at $416, Spirit Airlines will fly you from Boston to Santiago de los Caballeros and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and American Airlines - these airlines can fly you to your destination from $418 and $422, respectively. Spirit Airlines is priced at 20% 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 JetBlue, with whom users have recently found tickets for as low as $179. However, be on the lookout for offers from American Airlines 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 $463, our data indicates the cheapest price to be $169. The most popular route (Boston Logan Intl - Santiago de los Caballeros), is priced around $280.
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, May is the cheapest month in which you can book a flight from Boston to Santiago de los Caballeros (average of $347). Flying from Boston to Santiago de los Caballeros in July is currently the most expensive (average of $612). 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

Top 6 airlines flying from Boston to Santiago de los Caballeros

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$92	Average$423	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$320	Average$476	FlexibilityNo cancel fee	On-time69%
Spirit Airlines	Cheapest$349	Average$439	FlexibilityNo cancel fee	On-time65%
JetBlue	Cheapest$376	Average$531	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$380	Average$445	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$397	Average$515	FlexibilityNo cancel fee	On-time71%

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$179+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Santiago de los Caballeros with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Boston Logan Intl to Santiago de los Caballeros are usually found in January or November, booked 82 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Boston to Santiago de los Caballeros

Round-trip from

One-way from

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Good one-way deal

Find flight deals from Boston to Santiago de los Caballeros

Cheapest flights from Boston to Santiago de los CaballerosExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Santiago de los Caballeros that are best for you.

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.

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 July 25, 2025.

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

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 July 29, 2025.

What is the cheapest day to fly from Boston to Santiago de los Caballeros?

Use this chart to determine the cheapest time to fly round-trip from Boston to Santiago de los Caballeros. Price data was last updated on July 27, 2025.

Weekly flight availability from Boston to Santiago de los Caballeros

How much does it cost to fly round-trip from Boston to Santiago de los Caballeros?

What’s the top layover airport for flights from Boston to Santiago de los Caballeros?

Share of 1-stop round-trip flights from Boston to Santiago de los Caballeros chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Boston to Santiago de los Caballeros?

Average round-trip fare for 1-stop flights from Boston to Santiago de los Caballeros, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Boston to Santiago de los Caballeros?

Shortest average travel time for 1-stop one-way flights from Boston to Santiago de los Caballeros, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Boston to Santiago de los Caballeros?

Average layover duration for 1-stop one-way flights from Boston to Santiago de los Caballeros, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Santiago de los Caballeros

See what other customers who have flown with United Airlines, JetBlue, 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.

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?

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

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

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

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

How can I 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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Boston to Santiago de los Caballeros

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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 July 29, 2025.