What are the cheapest airlines to fly from Ontario to Santiago de los Caballeros one-way?

For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $274. Users have also found prices from $338 and $435 on Delta and JetBlue, respectively.

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 $619 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.

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.

$274+ Flights from Ontario to Santiago de los Caballeros

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Cheap flight deals from Ontario to Santiago de los Caballeros

Round-trip from	$495 (JetBlue)
One-way from	$274 (American Airlines)
Popular in	December
Cheapest in	September
Average price	$605

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. 23% potential increase in price ($193 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($52 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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 June 12, 2025.

Tue 9/1610:56 pmONT - STI

1 stop16h 07mJetBlue

Fri 9/2612:48 pmSTI - ONT

1 stop11h 41mJetBlue

Deal found 6/10

$495

Tue 9/96:04 amONT - STI

2 stops16h 42mUnited Airlines

Thu 9/256:00 amSTI - ONT

2 stops19h 42mUnited Airlines

Deal found 6/12

$599

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 June 12, 2025.

Tue 9/1610:56 pmONT - STI

1 stop16h 07mJetBlue

Fri 9/2612:48 pmSTI - ONT

1 stop11h 41mJetBlue

Deal found 6/10

$495

Tue 9/96:04 amONT - STI

2 stops16h 42mUnited Airlines

Thu 9/256:00 amSTI - ONT

2 stops19h 42mUnited Airlines

Deal found 6/12

$599

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 June 12, 2025 and is based on user searches.

Sun 6/2211:59 pmONT - STI

1 stop14h 55mJetBlue

Fri 7/41:14 pmSTI - ONT

1 stop11h 45mJetBlue

Deal found 6/12

$1,040

Fri 7/411:59 pmONT - STI

1 stop18h 14mJetBlue

Thu 7/1010:08 amSTI - ONT

1 stop14h 51mJetBlue

Deal found 6/12

$675

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 June 12, 2025.

Sat 7/266:15 amONT - STI

2 stops12h 04mAmerican Airlines

Deal found 6/11

$274

Wed 7/237:05 amONT - STI

2 stops14h 42mDelta

Deal found 6/11

$338

Tue 7/2911:59 pmONT - STI

1 stop18h 14mJetBlue

Deal found 6/11

$435

Sat 7/127:00 amONT - STI

2 stops15h 46mUnited Airlines

Deal found 6/10

$496

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 9/16

10:56 pm-6:03 pm

1 stop16h 07m

Santiago de los Caballeros

Fri 9/26

12:48 pm-9:29 pm

1 stop11h 41m

$495

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 9/9

6:04 am-1:46 am

2 stops16h 42m

Santiago de los Caballeros

Thu 9/25

6:00 am-10:42 pm

2 stops19h 42m

$599

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 7/26

6:15 am-9:19 pm

2 stops12h 04m

$274

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Wed 7/23

7:05 am-12:47 am

2 stops14h 42m

$338

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Tue 7/29

11:59 pm-9:13 pm

1 stop18h 14m

$435

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 7/12

7:00 am-1:46 am

2 stops15h 46m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $630). 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

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue

7.3

Good

2,925 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Ontario to Santiago de los Caballeros one-way?
For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $274. Users have also found prices from $338 and $435 on Delta and JetBlue, respectively.
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 $630). 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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$274+ 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 7/26. 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

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 June 12, 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 June 12, 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.

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.

What are the cheapest airlines to fly from Ontario to Santiago de los Caballeros one-way?

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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Travel Smart

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 June 12, 2025.