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Santiago de los Caballeros

$349+ Cheap flights from Ontario (ONT) 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — STI
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
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Find cheap flights from Ontario 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

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Cheap flight deals from Ontario to Santiago de los Caballeros

Cheapest flights from Ontario to Santiago de los Caballeros
Explore the most affordable flight options available from Ontario to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.

This American Airlines deal was found by Cheapflights users on 5/19. 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 7/161:10 pm
ONT
-
STI
2 stops22h 34m
American Airlines
Thu 7/237:00 am
STI
-
ONT
2 stops18h 34m
American Airlines
Deal found 5/19$719
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 9/286:00 am
ONT
-
STI
2 stops30h 12m
United Airlines
Thu 10/14:23 pm
STI
-
ONT
2 stops32h 35m
United Airlines
Deal found 5/17$815
This JetBlue deal was found by Cheapflights users on 5/17. 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.
Mon 9/289:10 pm
ONT
-
STI
1 stop10h 37m
JetBlue
Thu 10/16:30 am
STI
-
ONT
1 stop16h 43m
JetBlue
Deal found 5/17$819
This United Airlines deal was found by Cheapflights users on 5/16. 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 9/277:00 am
ONT
-
STI
2 stops26h 57m
United Airlines
Thu 10/14:23 pm
STI
-
ONT
2 stops32h 35m
United Airlines
Deal found 5/16$839
This Priceline deal was found by Cheapflights users on 5/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:41 pm
ONT
-
STI
1 stop17h 05m
JetBlue
Mon 6/87:56 pm
STI
-
ONT
1 stop27h 51m
JetBlue
Deal found 5/19$895
This JetBlue deal was found by Cheapflights users on 5/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:41 pm
ONT
-
STI
1 stop12h 28m
JetBlue
Wed 6/38:14 am
STI
-
ONT
1 stop15h 33m
JetBlue
Deal found 5/18$936
This JetBlue deal was found by Cheapflights users on 5/15. 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 9/279:10 pm
ONT
-
STI
1 stop13h 40m
JetBlue
Thu 10/16:30 am
STI
-
ONT
1 stop16h 43m
JetBlue
Deal found 5/15$958
This Priceline deal was found by Cheapflights users on 5/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:50 pm
ONT
-
STI
1 stop19h 59m
JetBlue
Mon 8/247:01 am
STI
-
ONT
1 stop18h 34m
JetBlue
Deal found 5/19$971
This JetBlue deal was found by Cheapflights users on 5/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:41 pm
ONT
-
STI
1 stop12h 28m
JetBlue
Wed 6/38:14 am
STI
-
ONT
1 stop15h 33m
JetBlue
Deal found 5/18$982
This Priceline deal was found by Cheapflights users on 5/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:50 pm
ONT
-
STI
1 stop20h 12m
JetBlue
Thu 7/1610:59 pm
STI
-
ONT
1 stop26h 36m
JetBlue
Deal found 5/19$983
This Priceline deal was found by Cheapflights users on 5/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:59 pm
ONT
-
STI
1 stop20h 35m
JetBlue
Sun 7/1211:02 pm
STI
-
ONT
1 stop26h 34m
JetBlue
Deal found 5/20$1,006

Find flight deals from Ontario to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 May 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$719
(American Airlines)

One-way from

$349
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$653
Provider with most accurate pricing for Ontario-Santiago de los Caballeros flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Santiago de los Caballeros flights.
Search Deals
From Ontario to Santiago de los Caballeros
Search Deals
One-way flight from Ontario to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 May 20, 2026.
Use the filters below to find and compare flights from Ontario to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 7/16

1:10 pm-2:44 pm

2 stops22h 34m

Santiago de los Caballeros

Thu 7/23

7:00 am-10:34 pm

2 stops18h 34m

$719

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 9/28

6:00 am-3:12 pm

2 stops30h 12m

Santiago de los Caballeros

Thu 10/1

4:23 pm-9:58 pm

2 stops32h 35m

$815
Quickest round-trip

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 9/28

9:10 pm-10:47 am

1 stop10h 37m

Santiago de los Caballeros

Thu 10/1

6:30 am-8:13 pm

1 stop16h 43m

$819

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sun 9/27

7:00 am-12:57 pm

2 stops26h 57m

Santiago de los Caballeros

Thu 10/1

4:23 pm-9:58 pm

2 stops32h 35m

$839
Cheapest one-way

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 7/20

7:14 pm-2:44 pm

2 stops16h 30m

$349

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 9/15

9:10 pm-12:59 am

1 stop24h 49m

$403

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 9/15

12:35 pm-12:20 pm

2 stops20h 45m

$403

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 11/12

1:00 pm-2:53 pm

2 stops21h 53m

$409

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 6/10

10:41 pm-8:03 pm

1 stop18h 22m

$430

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 6/11

11:58 pm-5:27 pm

1 stop14h 29m

$476

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario 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 Ontario to Santiago de los Caballeros in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Ontario-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 Ontario-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-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 Ontario-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 Ontario to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Ontario 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario 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.

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

    Departing from Ontario to Santiago de los Caballeros will take you 22h 34m. The distance between Ontario and Santiago de los Caballeros is about 3040 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Ontario 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 Ontario to Santiago de los Caballeros.

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

    Yes. Cheapflights offers flight deals from Ontario 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.

See more FAQs

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