How far in advance should I book a flight from Ontario to Santiago de los Caballeros?

To save on the cost of your flight from Ontario to Santiago de los Caballeros, book at least 23 days before your planned departure. Booking around this time can save you about 35% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $409 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $809.

What is the cheapest month to fly from Ontario to Santiago de los Caballeros?

Our data shows that September tends to be the cheapest month to fly to Santiago de los Caballeros from Ontario. Users have commonly found prices around $635 for the month, but tickets can be as low as $381. Due to multiple factors, prepare for potentially higher prices in December.

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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Santiago de los Caballeros flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

$583+ Flights from Ontario to Santiago de los Caballeros

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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.

Cheap flight deals from Ontario to Santiago de los Caballeros

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$618 (JetBlue)
One-way from	$583 (United Airlines)
Popular in	December
Cheapest in	September
Average price	$537

Provider with most accurate pricing for Ontario-Santiago de los Caballeros flight deals.

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Provider most trusted by Cheapflights users for Ontario-Santiago de los Caballeros flights.

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From Ontario to Santiago de los Caballeros

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One-way flight from Ontario to Santiago de los Caballeros

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Highest demand for flights based on searches. 21% potential increase in price ($177 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($50 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 29, 2025.

Tue 9/911:00 pmONT - STI

1 stop12h 10mJetBlue

Fri 9/1912:45 pmSTI - ONT

1 stop11h 56mJetBlue

Deal found 4/28

$618

Thu 10/96:30 pmONT - STI

2 stops15h 27mUnited Airlines

Mon 10/136:00 amSTI - ONT

2 stops17h 33mUnited Airlines

Deal found 4/28

$824

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 April 29, 2025.

Tue 9/911:00 pmONT - STI

1 stop12h 10mJetBlue

Fri 9/1912:45 pmSTI - ONT

1 stop11h 56mJetBlue

Deal found 4/28

$618

Thu 10/96:30 pmONT - STI

2 stops15h 27mUnited Airlines

Mon 10/136:00 amSTI - ONT

2 stops17h 33mUnited Airlines

Deal found 4/28

$824

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 April 29, 2025 and is based on user searches.

Thu 5/2210:59 pmONT - STI

1 stop11h 16mJetBlue

Fri 5/308:45 amSTI - ONT

1 stop15h 26mJetBlue

Deal found 4/28

$902

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 April 29, 2025.

Tue 7/11:34 pmONT - STI

2 stops20h 23mUnited Airlines

Deal found 4/28

$583

Tue 7/111:59 pmONT - STI

1 stop10h 53mJetBlue

Deal found 4/28

$645

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

Tue 9/9

11:00 pm-2:10 pm

1 stop12h 10m

Santiago de los Caballeros

Fri 9/19

12:45 pm-9:41 pm

1 stop11h 56m

$618

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Thu 10/9

6:30 pm-12:57 pm

2 stops15h 27m

Santiago de los Caballeros

Mon 10/13

6:00 am-8:33 pm

2 stops17h 33m

$824

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 7/1

1:34 pm-12:57 pm

2 stops20h 23m

$583

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 7/1

11:59 pm-1:52 pm

1 stop10h 53m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Santiago de los Caballeros flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 $347). Flying from Ontario to Santiago de los Caballeros in July is currently the most expensive (average of $631). 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.

Rainfall in Santiago de los Caballeros by month

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.

Temperature in Santiago de los Caballeros by month

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).

Reviews of airlines servicing Santiago de los Caballeros

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,696 reviews

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

JetBlue

7.3

Good

2,922 reviews

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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 $631). 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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$583+ 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 7/1. 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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Santiago de los Caballeros

Cheapest flights from Ontario to Santiago de los CaballerosExplore 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 April 29, 2025.

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 April 29, 2025.

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 April.

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?

Rainfall in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average rainfall totals by month.

Temperature in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average temperature totals by month.

Reviews of airlines servicing 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.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Santiago de los Caballeros

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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 April 29, 2025.