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Santiago de los Caballeros

$556+ Cheap flights from Ontario (ONT) to Santiago de los Caballeros (STI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — STI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$556
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$594
From Ontario to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:56 pmONT - STI
1 stop12h 17mJetBlue
Sat 10/412:48 pmSTI - ONT
1 stop11h 41mJetBlue
Deal found 9/16$683
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:56 pmONT - STI
1 stop12h 24mJetBlue
Wed 10/19:55 amSTI - ONT
1 stop14h 34mJetBlue
Deal found 9/16$724
This United Airlines deal was found by Cheapflights users on 9/17. 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 9/221:15 pmONT - STI
2 stops20h 42mUnited Airlines
Thu 9/256:00 amSTI - ONT
2 stops19h 52mUnited Airlines
Deal found 9/17$749
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:56 pmONT - STI
1 stop16h 08mJetBlue
Mon 10/133:30 pmSTI - ONT
1 stop32h 59mJetBlue
Deal found 9/16$755
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:56 pmONT - STI
1 stop16h 08mJetBlue
Sun 10/127:14 pmSTI - ONT
1 stop29h 15mJetBlue
Deal found 9/15$782
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/510:56 pmONT - STI
1 stop12h 17mJetBlue
Mon 10/133:30 pmSTI - ONT
1 stop32h 59mJetBlue
Deal found 9/16$784
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:56 pmONT - STI
1 stop12h 17mJetBlue
Mon 10/139:55 amSTI - ONT
1 stop14h 34mJetBlue
Deal found 9/16$813
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 9/185:10 amONT - STI
2 stops17h 36mUnited Airlines
Thu 9/256:00 amSTI - ONT
2 stops19h 52mUnited Airlines
Deal found 9/17$840
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:53 pmONT - STI
2 stops20h 04mUnited Airlines
Sun 10/126:00 amSTI - ONT
2 stops17h 24mUnited Airlines
Deal found 9/15$878
This United Airlines deal was found by Cheapflights users on 9/17. 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 12/11:29 pmONT - STI
2 stops18h 17mUnited Airlines
Sat 12/64:00 pmSTI - ONT
2 stops24h 32mUnited Airlines
Deal found 9/17$881
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/207:00 amONT - STI
2 stops12h 51mUnited Airlines
Thu 11/276:00 amSTI - ONT
2 stops15h 34mUnited Airlines
Deal found 9/16$1,012
This JetBlue deal was found by Cheapflights users on 9/17. 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 9/2210:56 pmONT - STI
1 stop12h 17mJetBlue
Thu 9/251:12 pmSTI - ONT
1 stop11h 17mJetBlue
Deal found 9/17$1,075

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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Santiago de los Caballeros that are best for you.

Fly from

Ontario

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sun 3/1

6:00 am-1:10 pm

2 stops27h 10m

Santiago de los Caballeros

Thu 3/5

8:00 am-11:43 pm

2 stops19h 43m

$556

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 9/27

10:56 pm-2:13 pm

1 stop12h 17m

Santiago de los Caballeros

Sat 10/4

12:48 pm-9:29 pm

1 stop11h 41m

$683

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 10/6

10:56 pm-6:04 pm

1 stop16h 08m

Santiago de los Caballeros

Mon 10/13

3:30 pm-9:29 pm

1 stop32h 59m

$755

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 10/7

10:56 pm-6:04 pm

1 stop16h 08m

Santiago de los Caballeros

Sun 10/12

7:14 pm-9:29 pm

1 stop29h 15m

$782

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sun 10/5

10:56 pm-2:13 pm

1 stop12h 17m

Santiago de los Caballeros

Mon 10/13

3:30 pm-9:29 pm

1 stop32h 59m

$784

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 10/4

10:56 pm-2:13 pm

1 stop12h 17m

Santiago de los Caballeros

Mon 10/13

9:55 am-9:29 pm

1 stop14h 34m

$813

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 10/7

1:53 pm-12:57 pm

2 stops20h 04m

Santiago de los Caballeros

Sun 10/12

6:00 am-8:24 pm

2 stops17h 24m

$878

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 12/1

1:29 pm-11:46 am

2 stops18h 17m

Santiago de los Caballeros

Sat 12/6

4:00 pm-12:32 pm

2 stops24h 32m

$881

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 11/20

7:00 am-11:51 pm

2 stops12h 51m

Santiago de los Caballeros

Thu 11/27

6:00 am-5:34 pm

2 stops15h 34m

$1,012

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sun 10/5

10:56 pm-2:20 pm

1 stop12h 24m

Santiago de los Caballeros

Sun 10/12

12:48 pm-9:29 pm

1 stop11h 41m

$1,138

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 11 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Santiago de los Caballeros

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

Currently, May is the cheapest month in which you can book a flight from Ontario to Santiago de los Caballeros (average of $347). Flying from Ontario to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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.

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 12h 17m. 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.

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

    Currently, May is the cheapest month in which you can book a flight from Ontario to Santiago de los Caballeros (average of $347). Flying from Ontario to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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

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Alternative routes for Ontario to Santiago de los Caballeros

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