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$388+ Cheap flights from Santiago de los Caballeros (STI) to Ontario (ONT)

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
STI — ONT
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
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Cheap flight deals from Santiago de los Caballeros to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Santiago de los Caballeros (STI) to Ontario (ONT). 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 June 23, 2025.

Round-trip from

$1,002
(JetBlue)

One-way from

$388
(JetBlue)

Popular in

June

Cheapest in

October

Average price

$1,051
From Santiago de los Caballeros to Ontario
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One-way flight from Santiago de los Caballeros to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($94 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 June 2025
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Find flight deals from Santiago de los Caballeros to Ontario

Cheapest flights from Santiago de los Caballeros to Ontario
Explore the most affordable flight options available from Santiago de los Caballeros to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2025.

This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/276:03 amSTI - ONT
2 stops16h 51mDelta
Sat 7/127:05 amONT - STI
2 stops14h 42mDelta
Deal found 6/22$771
This United Airlines deal was found by Cheapflights users on 6/21. 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 6/274:23 pmSTI - ONT
2 stops32h 48mUnited Airlines
Sun 7/131:34 pmONT - STI
2 stops20h 23mUnited Airlines
Deal found 6/21$840
This American Airlines deal was found by Cheapflights users on 6/21. 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.
Fri 6/277:05 amSTI - ONT
2 stops19h 54mAmerican Airlines
Sun 7/137:05 pmONT - STI
2 stops23h 14mAmerican Airlines
Deal found 6/21$926
This JetBlue deal was found by Cheapflights users on 6/22. 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.
Tue 7/221:13 pmSTI - ONT
1 stop11h 46mJetBlue
Tue 7/2911:59 pmONT - STI
1 stop14h 59mJetBlue
Deal found 6/22$1,002

Cheapflights Fare Finder

Customize your flight search to find flights from Santiago de los Caballeros to Ontario 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 June 23, 2025.
Use the filters below to find and compare flights from Santiago de los Caballeros to Ontario that are best for you.

Fly from

Santiago de los Caballeros

Fly to

Ontario

Route

Depart

Return

Price

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Tue 7/22

1:13 pm-9:59 pm

1 stop11h 46m

Ontario

Tue 7/29

11:59 pm-5:58 pm

1 stop14h 59m

$1,002

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Tue 7/22

6:00 am-5:25 pm

2 stops14h 25m

Ontario

Tue 7/29

6:39 pm-12:57 pm

2 stops15h 18m

$1,059

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Wed 7/9

10:08 am-9:59 pm

1 stop14h 51m

$388

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Wed 7/9

8:58 pm-10:30 am

2 stops16h 32m

$402

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Wed 7/9

6:00 am-10:52 pm

3 stops19h 52m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Best time to book a flight from Santiago de los Caballeros to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Santiago de los Caballeros 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 Santiago de los Caballeros to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Ontario (average of $246). Flying from Santiago de los Caballeros to Ontario in March is currently the most expensive (average of $328). 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 Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated June 23, 2025.
Delta
8.0
Very good
7,966 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,966 reviews
Delta
8.0
Very good
7,966 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,831 reviews
Delta
8.0
Very good
7,966 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very good
7,966 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Santiago de los Caballeros to Ontario. 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 Santiago de los Caballeros to Ontario one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $388. Users have also found prices from $402 and $457 on Delta and United Airlines, respectively.

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

    Yes. In addition to deals on Santiago de los Caballeros to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santiago de los Caballeros to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santiago de los Caballeros to Ontario.

  • Can I find deals for business class flights from Santiago de los Caballeros to Ontario?

    Yes. Cheapflights offers flight deals from Santiago de los Caballeros to Ontario 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 Santiago de los Caballeros to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Ontario (average of $246). Flying from Santiago de los Caballeros to Ontario in March is currently the most expensive (average of $328). 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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