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

Departing from Ontario to Santiago de los Caballeros will take you 17h 53m. 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.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

What is the cheapest time of day to fly from ONT to STI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Santiago de los Caballeros as you normally would.

Most accurate provider : When it comes to deals on Ontario-Santiago de los Caballeros flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Santiago de los Caballeros flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$410+ Flights from Ontario to Santiago de los Caballeros

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Cheap flight deals from Ontario to Santiago de los Caballeros

Best flights from Ontario to Santiago de los Caballeros
Discover carefully curated flight deals from Ontario 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 December 8, 2025.

Thu 1/223:09 pmONT - STI

2 stops20h 23mAmerican Airlines

Thu 1/296:00 amSTI - ONT

2 stops20h 48mAmerican Airlines

Deal found 12/8

$410

Thu 1/221:53 pmONT - STI

2 stops17h 53mUnited Airlines

Thu 1/294:00 pmSTI - ONT

3 stops23h 18mUnited Airlines

Deal found 12/8

$578

Tue 4/285:10 amONT - STI

2 stops14h 42mUnited Airlines

Thu 4/302:07 pmSTI - ONT

2 stops25h 30mUnited Airlines

Deal found 12/7

$636

Mon 1/55:05 amONT - STI

2 stops26h 41mUnited Airlines

Tue 5/56:00 amSTI - ONT

2 stops18h 01mUnited Airlines

Deal found 12/8

$659

Thu 2/196:00 amONT - STI

2 stops13h 51mUnited Airlines

Mon 2/234:00 pmSTI - ONT

2 stops24h 43mUnited Airlines

Deal found 12/7

$829

Tue 3/176:37 pmONT - STI

2 stops13h 09mUnited Airlines

Fri 4/176:00 amSTI - ONT

2 stops17h 46mUnited Airlines

Deal found 12/7

$851

Wed 2/181:50 pmONT - STI

2 stops21h 03mUnited Airlines

Sun 2/224:00 pmSTI - ONT

2 stops24h 43mUnited Airlines

Deal found 12/7

$909

Last-minute flights from Ontario to Santiago de los Caballeros
Discover last-minute flight deals from Ontario to Santiago de los Caballeros. Data last updated December 8, 2025 and is based on user searches.

Mon 1/55:05 amONT - STI

2 stops26h 41mUnited Airlines

Tue 5/56:00 amSTI - ONT

2 stops18h 01mUnited Airlines

Deal found 12/8

$659

Thu 1/223:09 pmONT - STI

2 stops20h 23mAmerican Airlines

Thu 1/296:00 amSTI - ONT

2 stops20h 48mAmerican Airlines

Deal found 12/8

$410

Thu 1/221:53 pmONT - STI

2 stops17h 53mUnited Airlines

Thu 1/294:00 pmSTI - ONT

3 stops23h 18mUnited Airlines

Deal found 12/8

$578

One-way flights from Ontario to Santiago de los Caballeros
Search for one-way flight options from Ontario to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated December 8, 2025.

Wed 5/206:54 pmONT - STI

2 stops16h 56mCopa Airlines

Deal found 12/7

$553

Sat 12/131:50 pmONT - STI

2 stops21h 03mUnited Airlines

Deal found 12/8

$594

Wed 5/2011:25 pmONT - STI

1 stop13h 31mJetBlue

Deal found 12/7

$654

Find flight deals from Ontario to Santiago de los Caballeros

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$473 (American Airlines)
Popular in	December
Cheapest in	May
Average price	$809

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

Highest demand for flights based on searches. 14% potential increase in price ($104 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 1/22

3:09 pm-3:32 pm

2 stops20h 23m

Santiago de los Caballeros

Thu 1/29

6:00 am-10:48 pm

2 stops20h 48m

$410

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 1/22

1:53 pm-11:46 am

2 stops17h 53m

Santiago de los Caballeros

Thu 1/29

4:00 pm-11:18 am

3 stops23h 18m

$578

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 4/28

5:10 am-10:52 pm

2 stops14h 42m

Santiago de los Caballeros

Thu 4/30

2:07 pm-12:37 pm

2 stops25h 30m

$636

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Mon 1/5

5:05 am-11:46 am

2 stops26h 41m

Santiago de los Caballeros

Tue 5/5

6:00 am-9:01 pm

2 stops18h 01m

$659

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 2/19

6:00 am-11:51 pm

2 stops13h 51m

Santiago de los Caballeros

Mon 2/23

4:00 pm-12:43 pm

2 stops24h 43m

$829

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 3/17

6:37 pm-10:46 am

2 stops13h 09m

Santiago de los Caballeros

Fri 4/17

6:00 am-8:46 pm

2 stops17h 46m

$851

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 2/18

1:50 pm-2:53 pm

2 stops21h 03m

Santiago de los Caballeros

Sun 2/22

4:00 pm-12:43 pm

2 stops24h 43m

$909

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 5/20

6:54 pm-2:50 pm

2 stops16h 56m

$553

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 12/13

1:50 pm-2:53 pm

2 stops21h 03m

$594

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 5/20

11:25 pm-3:56 pm

1 stop13h 31m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Compare providers for flights from Ontario to Santiago de los Caballeros

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Santiago de los Caballeros flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 $270). Flying from Ontario to Santiago de los Caballeros in July is currently the most expensive (average of $490). 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

How long is the flight from Ontario to Santiago de los Caballeros?
Departing from Ontario to Santiago de los Caballeros will take you 17h 53m. 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 $270). Flying from Ontario to Santiago de los Caballeros in July is currently the most expensive (average of $490). 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.

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$410+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Santiago de los Caballeros

Best flights from Ontario to Santiago de los CaballerosDiscover carefully curated flight deals from Ontario 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 December 8, 2025.

Discover carefully curated flight deals from Ontario 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 December 8, 2025.

Find flight deals from Ontario to Santiago de los Caballeros

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

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?

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

How can I 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?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Santiago de los Caballeros

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Best flights from Ontario to Santiago de los Caballeros
Discover carefully curated flight deals from Ontario 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 December 8, 2025.