$228+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — STI
Aug 22 — Aug 291
Round-trip
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 January or October, booked 35 days in advance, depart on a Saturday or Thursday and return on a Wednesday
Cheap flight deals from Boston to Santiago de los Caballeros
Cheapest
Best
Last-minute
One-way
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 23, 2026.
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 23, 2026.
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Fri 11/67:40 pm
BOS
- STI
2 stops16h 45m
American Airlines
Sun 11/225:03 pm
STI
- BOS
1 stop18h 17m
American Airlines
Deal found 7/18![American Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:20 am
BOS
- STI
1 stop12h 43m
American Airlines
Wed 9/163:15 pm
STI
- BOS
2 stops16h 03m
American Airlines
Deal found 7/19![American Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 7/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:30 am
BOS
- STI
1 stop7h 42m
United Airlines
Mon 9/212:07 pm
STI
- BOS
2 stops9h 52m
United Airlines
Deal found 7/21![United Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:24 am
BOS
- STI
2 stops10h 39m
American Airlines
Tue 9/153:15 pm
STI
- BOS
2 stops17h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$495
This Cheapflightsfares deal was found by Cheapflights users on 7/21. 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 11/128:55 pm
BOS
- STI
Nonstop3h 56m
JetBlue
Tue 11/176:01 am
STI
- BOS
Nonstop3h 58m
JetBlue
Deal found 7/21![JetBlue logo]()
$498
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 8/298:00 am
BOS
- STI
2 stops13h 07m
American Airlines
Sun 9/133:15 pm
STI
- BOS
2 stops19h 10m
American Airlines
Deal found 7/22![American Airlines logo]()
$500
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:00 am
BOS
- STI
2 stops13h 07m
American Airlines
Tue 9/88:30 am
STI
- BOS
2 stops14h 00m
American Airlines
Deal found 7/19![American Airlines logo]()
$502
This JetBlue deal was found by Cheapflights users on 7/20. 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 8/141:10 pm
BOS
- STI
Nonstop4h 03m
JetBlue
Mon 8/316:48 pm
STI
- BOS
Nonstop4h 02m
JetBlue
Deal found 7/20![JetBlue logo]()
$503
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:09 am
BOS
- STI
1 stop8h 54m
American Airlines
Wed 9/27:00 am
STI
- BOS
1 stop14h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$504
Best flights from Boston to Santiago de los CaballerosDiscover 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 23, 2026.
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 23, 2026.
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:05 am
BOS
- STI
1 stop10h 29m
Delta
Sun 10/47:30 pm
STI
- BOS
1 stop11h 54m
Delta
Deal found 7/18![Delta logo]()
$495
This JetBlue deal was found by Cheapflights users on 7/21. 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 9/275:15 am
BOS
- STI
1 stop8h 34m
JetBlue
Thu 10/110:05 am
STI
- BOS
1 stop9h 34m
JetBlue
Deal found 7/21![JetBlue logo]()
$530
This United Airlines deal was found by Cheapflights users on 7/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 am
BOS
- STI
1 stop6h 57m
United Airlines
Thu 10/12:07 pm
STI
- BOS
1 stop27h 45m
United Airlines
Deal found 7/18![United Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:34 pm
BOS
- STI
1 stop12h 21m
Delta
Sun 9/207:30 pm
STI
- BOS
1 stop11h 54m
Delta
Deal found 7/20![Delta logo]()
$495
This JetBlue deal was found by Cheapflights users on 7/23. 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.
Tue 9/11:10 pm
BOS
- STI
Nonstop4h 03m
JetBlue
Wed 9/309:40 pm
STI
- BOS
1 stop10h 19m
JetBlue
Deal found 7/23![JetBlue logo]()
$559
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:05 am
BOS
- STI
1 stop13h 29m
Delta
Sun 9/137:30 pm
STI
- BOS
1 stop11h 54m
Delta
Deal found 7/18![Delta logo]()
$560
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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.
Fri 10/168:55 pm
BOS
- STI
Nonstop4h 26m
JetBlue
Mon 10/263:44 pm
STI
- BOS
1 stop8h 35m
JetBlue
Deal found 7/22![JetBlue logo]()
$561
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:05 am
BOS
- STI
1 stop13h 29m
Delta
Sun 9/137:30 pm
STI
- BOS
1 stop11h 54m
Delta
Deal found 7/18![Delta logo]()
$560
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:05 am
BOS
- STI
1 stop10h 29m
Delta
Sun 9/137:30 pm
STI
- BOS
1 stop11h 54m
Delta
Deal found 7/18![Delta logo]()
$560
This JetBlue deal was found by Cheapflights users on 7/21. 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.
Tue 7/289:48 pm
BOS
- STI
Nonstop4h 00m
JetBlue
Thu 8/611:02 pm
STI
- BOS
1 stop8h 44m
JetBlue
Deal found 7/21![JetBlue logo]()
$624
This JetBlue deal was found by Cheapflights users on 7/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:55 pm
BOS
- STI
Nonstop4h 26m
JetBlue
Sat 10/176:30 am
STI
- BOS
Nonstop3h 55m
JetBlue
Deal found 7/19![JetBlue logo]()
$628
Last-minute flights from Boston to Santiago de los CaballerosDiscover last-minute flight deals from Boston to Santiago de los Caballeros. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Santiago de los Caballeros. Data last updated July 23, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:20 am
BOS
- STI
1 stop12h 43m
American Airlines
Wed 9/163:15 pm
STI
- BOS
2 stops16h 03m
American Airlines
Deal found 7/19![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:20 pm
BOS
- STI
1 stop21h 02m
American Airlines
Tue 9/153:15 pm
STI
- BOS
1 stop20h 42m
American Airlines
Deal found 7/19![American Airlines logo]()
$491
This SmartFares deal was found by Cheapflights users on 7/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:44 pm
BOS
- STI
Nonstop4h 01m
JetBlue
Tue 9/85:01 am
STI
- BOS
Nonstop3h 56m
JetBlue
Deal found 7/21![JetBlue logo]()
$498
This Super.com deal was found by Cheapflights users on 7/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:44 pm
BOS
- STI
Nonstop4h 01m
JetBlue
Thu 8/278:57 am
STI
- BOS
1 stop7h 51m
JetBlue
Deal found 7/21![JetBlue logo]()
$493
This JetBlue deal was found by Cheapflights users on 7/20. 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 8/141:10 pm
BOS
- STI
Nonstop4h 03m
JetBlue
Mon 8/316:48 pm
STI
- BOS
Nonstop4h 02m
JetBlue
Deal found 7/20![JetBlue logo]()
$503
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:00 am
BOS
- STI
2 stops13h 07m
American Airlines
Tue 9/88:30 am
STI
- BOS
2 stops14h 00m
American Airlines
Deal found 7/19![American Airlines logo]()
$502
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:09 am
BOS
- STI
1 stop8h 54m
American Airlines
Wed 9/27:00 am
STI
- BOS
1 stop14h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:24 am
BOS
- STI
2 stops11h 43m
American Airlines
Sun 9/203:15 pm
STI
- BOS
1 stop8h 14m
American Airlines
Deal found 7/19![American Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 8/298:00 am
BOS
- STI
2 stops13h 07m
American Airlines
Sun 9/133:15 pm
STI
- BOS
2 stops19h 10m
American Airlines
Deal found 7/22![American Airlines logo]()
$500
One-way flights from Boston to Santiago de los CaballerosSearch 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 23, 2026.
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 23, 2026.
This JetBlue deal was found by Cheapflights users on 7/22. 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.
Wed 8/199:44 pm
BOS
- STI
Nonstop4h 01m
JetBlue
Deal found 7/22![JetBlue logo]()
$228
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:05 am
BOS
- STI
1 stop10h 29m
Delta
Deal found 7/22![Delta logo]()
$232
This SmartFares deal was found by Cheapflights users on 7/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:10 pm
BOS
- STI
Nonstop4h 03m
JetBlue
Deal found 7/21![JetBlue logo]()
$233
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Tue 8/185:27 am
BOS
- STI
2 stops9h 08m
American Airlines
Deal found 7/21![American Airlines logo]()
$235
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:50 pm
BOS
- STI
2 stops19h 22m
American Airlines
Deal found 7/19![American Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 10/98:25 pm
BOS
- STI
2 stops17h 47m
American Airlines
Deal found 7/22![American Airlines logo]()
$239
This American Airlines deal was found by Cheapflights users on 7/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:26 am
BOS
- STI
2 stops12h 37m
American Airlines
Deal found 7/20![American Airlines logo]()
$240
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:05 am
BOS
- STI
2 stops8h 10m
American Airlines
Deal found 7/19![American Airlines logo]()
$242
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:23 am
BOS
- STI
2 stops26h 49m
American Airlines
Deal found 7/19![American Airlines logo]()
$243
This Super.com deal was found by Cheapflights users on 7/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:45 pm
BOS
- STI
Nonstop4h 00m
JetBlue
Deal found 7/21![JetBlue logo]()
$244
This Cheapflightsfares deal was found by Cheapflights users on 7/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:48 pm
BOS
- STI
Nonstop4h 00m
JetBlue
Deal found 7/19![JetBlue logo]()
$246
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am
BOS
- STI
1 stop9h 12m
United Airlines
Deal found 7/20![United Airlines logo]()
$247
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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $489 (American Airlines) |
One-way from | $228 (JetBlue) |
Popular in | December |
Cheapest in | January |
Average price | $644 |
Good round-trip deal | $552 or less |
Good one-way deal | $267 or less |
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 July 23, 2026.
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
Cheapest round-trip
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Thu 9/3
9:05 am-7:34 pm
1 stop10h 29m
Santiago de los Caballeros
Sun 10/4
7:30 pm-7:24 am
1 stop11h 54m
$495
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Thu 8/20
1:34 pm-1:55 am
1 stop12h 21m
Santiago de los Caballeros
Sun 9/20
7:30 pm-7:24 am
1 stop11h 54m
$495
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Sun 9/27
5:15 am-1:49 pm
1 stop8h 34m
Santiago de los Caballeros
Thu 10/1
10:05 am-7:39 pm
1 stop9h 34m
$530
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Sun 9/27
6:00 am-12:57 pm
1 stop6h 57m
Santiago de los Caballeros
Thu 10/1
2:07 pm-5:52 pm
1 stop27h 45m
$535
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Tue 9/1
1:10 pm-5:13 pm
Nonstop4h 03m
Santiago de los Caballeros
Wed 9/30
9:40 pm-7:59 am
1 stop10h 19m
$559
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Fri 9/4
6:05 am-7:34 pm
1 stop13h 29m
Santiago de los Caballeros
Sun 9/13
7:30 pm-7:24 am
1 stop11h 54m
$560
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Sat 9/5
6:05 am-7:34 pm
1 stop13h 29m
Santiago de los Caballeros
Sun 9/13
7:30 pm-7:24 am
1 stop11h 54m
$560
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Thu 9/3
9:05 am-7:34 pm
1 stop10h 29m
Santiago de los Caballeros
Sun 9/13
7:30 pm-7:24 am
1 stop11h 54m
$560
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Fri 10/16
8:55 pm-1:21 am
Nonstop4h 26m
Santiago de los Caballeros
Mon 10/26
3:44 pm-12:19 am
1 stop8h 35m
$561
BostonSantiago de los Caballeros
BOS - STI
BOSSTI
Boston Logan Intl
Tue 7/28
9:48 pm-1:48 am
Nonstop4h 00m
Santiago de los Caballeros
Thu 8/6
11:02 pm-7:46 am
1 stop8h 44m
$624
Showing 1-10 of 22 resultsSorted by cheapest first
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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Santiago de los Caballeros flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
BOS-STI
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
Prices
Delays
More
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 34 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, January is the cheapest month in which you can book a flight from Boston to Santiago de los Caballeros (average of $456). Flying from Boston to Santiago de los Caballeros in December is currently the most expensive (average of $740). 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 July 23, 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 at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 41% on airfare.
How often are flights from Boston to Santiago de los Caballeros delayed?
About 37% of weekly flights between Boston and Santiago de los Caballeros have experienced delays in the past year, with the average delay time being 126 minutes.
What is the most punctual flight time for Boston to Santiago de los Caballeros flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to Santiago de los Caballeros flights?
Over the last year, JetBlue have had the lowest number of delays on this route, with just 37% of flights being delayed.
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.
Miami (MIA) – chosen by Cheapflights users on 75% 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?
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.
New York (JFK) is the most affordable 1-stop option, with an average round-trip price of $377.
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.
Flights via Miami (MIA) have the shortest average one-way travel time for 1-stop routes: 7h 51m.
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.
Flights via Miami (MIA) offer the fastest connection on this route, with an average layover time of 1h 54m.
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 July 23, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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.
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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.
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Alternative routes for Boston to Santiago de los Caballeros
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Complete your trip
Complete your trip to Santiago de los Caballeros by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Santiago de los Caballeros by cabin class
Find flights from Boston to Santiago de los Caballeros, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Santiago de los Caballeros flights
Browse other Boston and Santiago de los Caballeros flight options. Last updated on July 23, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
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Other flights to Santiago de los Caballeros
Explore flights to Santiago de los Caballeros departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
Top 4 airlines flying from Boston to Santiago de los Caballeros
Discover the top 4 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$380 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$320 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$378 | Average$590 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$395 | Average$525 | FlexibilityNo cancel fee | On-time71% |