Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Santiago de los Caballeros from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Santiago de los Caballeros departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Boston to Santiago de los Caballeros

Cheap round-trip flights

Spirit Airlines Logo
8:39 pm - 9:50 amBOS-STI
13h 11m1 stop
Spirit Airlines Logo
10:55 am - 11:48 pmSTI-BOS
12h 53m1 stop
$327Spirit Airlines
Find Deal
Wed, Jul 9 - Thu, Jul 17
Spirit Airlines Logo
8:39 pm - 9:50 amBOS-STI
13h 11m1 stop
Spirit Airlines Logo
10:55 am - 7:34 pmSTI-BOS
8h 39m1 stop
$332Spirit Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
Spirit Airlines Logo
8:39 pm - 9:50 amBOS-STI
13h 11m1 stop
Spirit Airlines Logo
10:55 am - 7:34 pmSTI-BOS
8h 39m1 stop
$334Spirit Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 23
JetBlue Logo
7:05 am - 10:54 amBOS-STI
3h 49mnonstop
JetBlue Logo
5:05 am - 8:54 amSTI-BOS
3h 49mnonstop
$356JetBlue
Find Deal
Wed, Sep 24 - Thu, Oct 2
JetBlue Logo
8:08 pm - 11:59 pmBOS-STI
3h 51mnonstop
JetBlue Logo
5:05 am - 8:54 amSTI-BOS
3h 49mnonstop
$361JetBlue
Find Deal
Wed, Oct 1 - Mon, Oct 6
Delta Logo
6:00 am - 12:28 pmBOS-STI
6h 28m1 stop
Delta Logo
1:53 pm - 10:29 pmSTI-BOS
8h 36m1 stop
$371Delta
Find Deal
Tue, Sep 16 - Fri, Sep 26
American Airlines Logo
7:30 pm - 12:27 pmBOS-STI
16h 57m2 stops
American Airlines Logo
1:29 pm - 10:17 pmSTI-BOS
8h 48m1 stop
$375American Airlines
Find Deal
Tue, Sep 16 - Fri, Sep 26
Delta Logo
6:00 am - 12:28 pmBOS-STI
6h 28m1 stop
Delta Logo
9:20 pm - 7:25 amSTI-BOS
10h 05m1 stop
$376Delta
Find Deal
Wed, Oct 1 - Sun, Oct 5
American Airlines Logo
9:22 am - 8:48 pmBOS-STI
11h 26m2 stops
American Airlines Logo
1:29 pm - 7:39 amSTI-BOS
18h 10m2 stops
$380American Airlines
Find Deal
Wed, Aug 6 - Mon, Sep 8
United Airlines Logo
9:43 am - 1:46 amBOS-STI
16h 03m2 stops
United Airlines Logo
4:23 pm - 9:56 amSTI-BOS
17h 33m2 stops
$465United Airlines
Find Deal
Mon, Sep 22 - Fri, Sep 26

Spirit Airlines flights from Boston to Santiago de los Caballeros

Our best Spirit Airlines deals on Boston to Santiago de los Caballeros flight tickets
Spirit Airlines
Jul 9
BOS8:39 pmBoston Logan Intl
13h 11m
1 stop
STI9:50 amSantiago de los Caballeros
Jul 17
STI10:55 amSantiago de los Caballeros
12h 53m
1 stop
BOS11:48 pmBoston Logan Intl
Spirit Airlines
Jul 9
BOS8:39 pmBoston Logan Intl
13h 11m
1 stop
STI9:50 amSantiago de los Caballeros
Jul 16
STI10:55 amSantiago de los Caballeros
8h 39m
1 stop
BOS7:34 pmBoston Logan Intl
Spirit Airlines
Jul 9
BOS8:39 pmBoston Logan Intl
13h 11m
1 stop
STI9:50 amSantiago de los Caballeros
Jul 23
STI10:55 amSantiago de los Caballeros
8h 39m
1 stop
BOS7:34 pmBoston Logan Intl

JetBlue flights from Boston to Santiago de los Caballeros

Our best JetBlue deals on Boston to Santiago de los Caballeros flight tickets
JetBlue
Sep 24
BOS7:05 amBoston Logan Intl
3h 49m
STI10:54 amSantiago de los Caballeros
Oct 2
STI5:05 amSantiago de los Caballeros
3h 49m
BOS8:54 amBoston Logan Intl
JetBlue
Oct 1
BOS8:08 pmBoston Logan Intl
3h 51m
STI11:59 pmSantiago de los Caballeros
Oct 6
STI5:05 amSantiago de los Caballeros
3h 49m
BOS8:54 amBoston Logan Intl
JetBlue
Oct 10
BOS7:05 amBoston Logan Intl
3h 49m
STI10:54 amSantiago de los Caballeros
Oct 19
STI5:05 amSantiago de los Caballeros
3h 49m
BOS8:54 amBoston Logan Intl

See travel insights to Santiago de los Caballeros from

How to get the cheapest flight ticket from Boston to Santiago de los Caballeros

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The cheapest month to fly to Santiago de los Caballeros from Boston is in November. Flight prices, which tend to average around $429, are often lower during this time because this is during the off-season. If you aren’t able to travel to Santiago de los Caballeros during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $433.

What is the cheapest day to depart on your flight to Santiago de los Caballeros?

The cheapest day to depart from Boston to Santiago de los Caballeros is on a Tuesday when prices can be found for as low as $503. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Santiago de los Caballeros for around $561.

What is the cheapest time of day to depart on your flight to Santiago de los Caballeros?

Our data shows that the cheapest Boston to Santiago de los Caballeros flights are usually those with departure times at noon. Our users have found flights to Santiago de los Caballeros at noon for as low as $519. In the morning is when there is more demand to fly to Santiago de los Caballeros, so prices are often more expensive at around $532 per ticket.

What is the cheapest Boston Logan Intl to Santiago de los Caballeros flight route?

Fly from Boston Logan Intl to Santiago de los Caballeros for the best Boston Logan Intl - Santiago de los Caballeros flight prices

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

You are more likely to see cheaper flights to Santiago de los Caballeros from Boston when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Santiago de los Caballeros for around $517 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago de los Caballeros from Boston for as low as $476 on momondo.

What cabin class options are available on Boston Logan Intl to Santiago de los Caballeros flights?

There are 1 cabin classes available to choose from on Boston Logan Intl to Santiago de los Caballeros flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to Santiago de los Caballeros flight prices changed over time?

As of June 2025, prices for Boston to Santiago de los Caballeros flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Santiago de los Caballeros

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Santiago de los Caballeros according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Santiago de los Caballeros (BOS to STI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Santiago de los Caballeros

Best Price Found

$138

Fastest flight time

3h 47m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Santiago de los Caballeros

1 airport
The best one-way flight to Santiago de los Caballeros from Boston in the past 72 hours is $138. The best round-trip flight deal from Boston to Santiago de los Caballeros found on momondo in the last 72 hours is $327.
The fastest flight from Boston to Santiago de los Caballeros takes 3h 47m
Direct flights go from Boston to Santiago de los Caballeros on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is JetBlue.
There is 1 airport near Santiago de los Caballeros: Santiago de los Caballeros (STI)

  • How far is Boston Logan Intl to Santiago de los Caballeros by plane?

    There are 1581.9 mi between Boston Logan Intl and Santiago de los Caballeros. Flights usually cover this in 3h 47m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Santiago de los Caballeros Airport?

    Prices for flights from Boston Logan Intl Airport to Santiago de los Caballeros Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Santiago de los Caballeros Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Santiago de los Caballeros Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The travel and health documents you'll need for your trip to Santiago de los Caballeros Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santiago de los Caballeros Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to Santiago de los Caballeros?

  • What is the most popular airline from Boston to Santiago de los Caballeros?


Best airlines flying from Boston to Santiago de los Caballeros

Compare and see reviews for airlines that fly from Boston to Santiago de los Caballeros with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $92Free CancellationRating
5.9
3,295 reviews
Search Frontier flights
United AirlinesPriceFrom $320Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
JetBluePriceFrom $376Free CancellationRating
7.3
2,925 reviews
Search JetBlue flights
Spirit AirlinesPriceFrom $386Free CancellationRating
6.3
8,052 reviews
Search Spirit Airlines flights
DeltaPriceFrom $390Free CancellationRating
8.0
7,946 reviews
Search Delta flights
American AirlinesPriceFrom $397Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • JetBlue Flights From Boston to Santiago de los Caballeros

    JetBlue is one of the most popular airlines flying from Boston to Santiago de los Caballeros, operating 3 flights/week on average for this route. A good JetBlue flight deal for Boston to Santiago de los Caballeros starts from $376 round-trip, up to an average price of $532. Our users have rated JetBlue at 7.3/10.


Why use momondo?

Why should I use momondo to find a flight deal from Boston to Santiago de los Caballeros?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Santiago de los Caballeros from Boston.

Can I find flights from Boston to Santiago de los Caballeros with flexible booking policies on momondo?

momondo does allow users to show only those flights to Santiago de los Caballeros from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Santiago de los Caballeros?

momondo provides multiple filters to help you find the best flight to Santiago de los Caballeros from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Santiago de los Caballeros right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Santiago de los Caballeros now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Santiago de los Caballeros and let you know when they change.


An easier way to manage your Santiago de los Caballeros trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 6/17
Tue 6/24

Find better results for your trip to the Dominican Republic