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Santiago de los Caballeros

$443+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — STI
Sep 9 — Sep 161
Wed 9/9
Wed 9/16
1 adult, Economy
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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 August 10, 2026.

This American Airlines deal was found by Cheapflights users on 8/7. 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 9/12:27 pm -
2 stops21h 08m
Sat 9/193:15 pm -
2 stops21h 14m
Deal found 8/7$790
This United Airlines deal was found by Cheapflights users on 8/6. 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 -
2 stops27h 57m
Wed 10/212:07 pm -
2 stops33h 51m
Deal found 8/6$845
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 9/241:24 pm -
2 stops22h 48m
Tue 9/292:07 pm -
2 stops25h 39m
Deal found 8/5$849
This Priceline deal was found by Cheapflights users on 8/9. 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.
Tue 9/2210:39 pm -
1 stop12h 10m
Tue 10/611:45 am -
1 stop12h 15m
Deal found 8/9$862
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/225:00 am -
2 stops14h 52m
Tue 10/66:00 am -
2 stops17h 31m
Deal found 8/9$869
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/127:00 am -
2 stops26h 57m
Sun 9/202:07 pm -
2 stops25h 43m
Deal found 8/6$916
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Thu 11/269:25 am -
2 stops25h 28m
Tue 12/16:00 am -
2 stops18h 20m
Deal found 8/8$939
This Justfly.com deal was found by Cheapflights users on 8/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm -
1 stop11h 09m
Sat 9/1911:45 am -
1 stop12h 12m
Deal found 8/7$970
This JetBlue deal was found by Cheapflights users on 8/6. 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 9/1210:39 pm -
1 stop12h 10m
Sun 9/2011:45 am -
1 stop11h 42m
Deal found 8/6$1,017
This United Airlines deal was found by Cheapflights users on 8/5. 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 11/99:25 am -
2 stops22h 24m
Fri 1/86:00 am -
2 stops18h 20m
Deal found 8/5$1,030
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/45:00 am -
2 stops14h 52m
Fri 9/116:00 am -
2 stops17h 53m
Deal found 8/8$1,072
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 11/106:00 am -
2 stops13h 51m
Sun 11/156:00 am -
2 stops16h 47m
Deal found 8/7$1,075

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 August 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$790
(American Airlines)

One-way from

$443
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$731
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 ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 10, 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 Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 10/17

6:00 am-12:57 pm

2 stops27h 57m

Santiago de los Caballeros

Wed 10/21

2:07 pm-8:58 pm

2 stops33h 51m

$845

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Thu 9/24

1:24 pm-3:12 pm

2 stops22h 48m

Santiago de los Caballeros

Tue 9/29

2:07 pm-12:46 pm

2 stops25h 39m

$849

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/22

10:39 pm-1:49 pm

1 stop12h 10m

Santiago de los Caballeros

Tue 10/6

11:45 am-9:00 pm

1 stop12h 15m

$862

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Tue 9/22

5:00 am-10:52 pm

2 stops14h 52m

Santiago de los Caballeros

Tue 10/6

6:00 am-8:31 pm

2 stops17h 31m

$869

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 9/12

7:00 am-12:57 pm

2 stops26h 57m

Santiago de los Caballeros

Sun 9/20

2:07 pm-12:50 pm

2 stops25h 43m

$916

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Thu 11/26

9:25 am-2:53 pm

2 stops25h 28m

Santiago de los Caballeros

Tue 12/1

6:00 am-8:20 pm

2 stops18h 20m

$939
Quickest round-trip

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sat 9/12

10:39 pm-1:49 pm

1 stop12h 10m

Santiago de los Caballeros

Sun 9/20

11:45 am-8:27 pm

1 stop11h 42m

$1,017

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Fri 9/4

5:00 am-10:52 pm

2 stops14h 52m

Santiago de los Caballeros

Fri 9/11

6:00 am-8:53 pm

2 stops17h 53m

$1,072

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Sun 8/23

1:18 pm-12:57 pm

2 stops20h 39m

Santiago de los Caballeros

Thu 8/27

6:00 am-10:59 pm

2 stops19h 59m

$1,170
Cheapest one-way

OntarioSantiago de los Caballeros

ONT Ontario - STI Santiago de los Caballeros

ONTSTI

Ontario

Wed 10/7

8:03 am-12:57 pm

2 stops25h 54m

$443

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 11 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 August.
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 27h 57m. The distance between Ontario and Santiago de los Caballeros is about 3040 mi.

  • 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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