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Ontario

$115+ Cheap flights from Caribbean 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ONT
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Caribbean to Ontario

Cheapest flights from Caribbean to Ontario
Explore the most affordable flight options available from Caribbean to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:06 pmSJU - ONT
1 stop16h 18mFrontier
Mon 1/56:00 pmONT - SJU
2 stops14h 59mFrontier
Deal found 10/26$281
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:06 pmSJU - ONT
2 stops32h 53mMultiple Airlines
Thu 1/19:48 amONT - SJU
1 stop10h 45mMultiple Airlines
Deal found 10/26$314
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:55 amSJU - ONT
2 stops17h 20mFrontier
Thu 1/14:16 pmONT - SJU
1 stop10h 18mFrontier
Deal found 10/26$352
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/278:10 amSJU - ONT
1 stop11h 11mUnited Airlines
Thu 12/115:05 amONT - SJU
2 stops13h 17mUnited Airlines
Deal found 10/26$355
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:00 amSJU - ONT
2 stops16h 27mFrontier
Mon 12/15:06 pmONT - SJU
2 stops17h 55mFrontier
Deal found 10/26$371
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:55 amSJU - ONT
2 stops21h 22mFrontier
Sat 1/33:27 pmONT - SJU
1 stop11h 07mFrontier
Deal found 10/27$372
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:01 amSJU - ONT
2 stops12h 25mFrontier
Mon 12/15:06 pmONT - SJU
2 stops17h 55mFrontier
Deal found 10/26$376
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:16 pmSJU - ONT
2 stops30h 50mMultiple Airlines
Thu 12/117:33 pmONT - SJU
1 stop25h 02mMultiple Airlines
Deal found 10/28$379
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:06 pmSJU - ONT
1 stop16h 18mFrontier
Sat 1/107:30 amONT - SJU
2 stops19h 04mFrontier
Deal found 10/27$381
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/193:24 pmSTI - ONT
2 stops21h 24mAmerican Airlines
Tue 1/64:45 pmONT - STI
2 stops25h 01mAmerican Airlines
Deal found 10/28$518
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/275:06 pmPLS - ONT
2 stops22h 31mUnited Airlines
Wed 12/36:00 amONT - PLS
2 stops31h 00mUnited Airlines
Deal found 10/27$705
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/115:06 pmPLS - ONT
2 stops54h 36mUnited Airlines
Thu 12/1811:59 pmONT - PLS
1 stop10h 56mUnited Airlines
Deal found 10/27$805

Cheap flight deals from Caribbean to Ontario

Keep the following information in mind while searching for Caribbean to Ontario flight deals. Data was last updated October 28, 2025.

Round-trip from

$281
(Frontier)

One-way from

$115
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$361
From Caribbean to Ontario
Search Deals
One-way flight from Caribbean to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Caribbean 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 October 28, 2025.
Use the filters below to find and compare flights from Caribbean to Ontario that are best for you.

Fly from

Caribbean

Fly to

Ontario

Route

Depart

Return

Price

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 12/24

7:06 pm-11:59 pm

2 stops32h 53m

Ontario

Thu 1/1

9:48 am-12:33 am

1 stop10h 45m

$314

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 12/22

7:06 pm-7:24 am

1 stop16h 18m

Ontario

Mon 1/5

8:14 am-6:34 am

1 stop18h 20m

$348

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 11/27

8:10 am-3:21 pm

1 stop11h 11m

Ontario

Thu 12/11

5:05 am-10:22 pm

2 stops13h 17m

$355

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 12/24

9:37 pm-5:22 pm

2 stops23h 45m

Ontario

Sat 1/3

3:27 pm-6:34 am

1 stop11h 07m

$378

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 12/11

2:05 pm-10:00 pm

2 stops11h 55m

Ontario

Sun 12/14

10:34 pm-10:09 pm

1 stop19h 35m

$414

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sun 12/28

7:06 pm-7:24 am

1 stop16h 18m

Ontario

Sun 1/4

5:24 pm-3:01 pm

2 stops17h 37m

$424

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 11/12

3:59 am-6:49 pm

2 stops18h 50m

Ontario

Mon 11/17

7:44 pm-5:54 pm

2 stops18h 10m

$438

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sun 12/21

6:00 am-6:02 pm

2 stops16h 02m

Ontario

Thu 1/1

4:16 pm-6:34 am

1 stop10h 18m

$453

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 11/11

7:15 am-6:21 pm

1 stop15h 06m

Ontario

Mon 11/17

10:34 pm-8:48 pm

1 stop18h 14m

$470

Santiago de los CaballerosOntario

STI - ONT

STIONT

Santiago de los Caballeros

Fri 12/19

6:17 pm-8:48 am

2 stops18h 31m

Ontario

Tue 1/6

4:45 pm-9:46 pm

2 stops25h 01m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 54 results
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Best time to book a flight from Caribbean to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Caribbean 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 Caribbean to Ontario

What is the cheapest month to book a flight from Caribbean to Ontario?

Currently, February is the cheapest month in which you can book a flight from Caribbean to Ontario (average of $149). Flying from Caribbean to Ontario in July is currently the most expensive (average of $260). 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.

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

Find hourly flight availability from Caribbean to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Caribbean to Ontario in the evening. Doing so could potentially save you 62% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 October 28, 2025.
Read through reviews of airlines operating flights from Caribbean to Ontario, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

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
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

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
9,001 reviews
Delta
7.9
Good
7,994 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

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
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

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 Caribbean to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Caribbean?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Caribbean. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Caribbean to Ontario?

    For as low as $355, Frontier can have you in Ontario from Caribbean in 11h 11m. There are 3334 mi between Caribbean and Ontario. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Caribbean to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $148. United Airlines flights start at $268 while deals on American Airlines start at $311 one-way.

  • What are the most popular routes from Caribbean to Ontario?

    While some choose either Santiago de los Caballeros - Ontario or Saint Thomas Island Cyril E King - Ontario, San Juan Luis Munoz Marin Intl - Ontario is the most popular route from Caribbean to Ontario.

  • Can I find deals for flights from Caribbean to Ontario that include hotel bookings?

    Yes. In addition to deals on Caribbean to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Caribbean to Ontario?

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

  • Can I find deals for business class flights from Caribbean to Ontario?

    Yes. Cheapflights offers flight deals from Caribbean 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 Caribbean to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Caribbean to Ontario (average of $149). Flying from Caribbean to Ontario in July is currently the most expensive (average of $260). 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 Caribbean to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Caribbean to Ontario

Discover the top 3 airlines that operate flights from Caribbean to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$344Average$570FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$355Average$676FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$433Average$654FlexibilityNo cancel feeOn-time69%

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