Caribbean

$172+ Cheap flights from Ontario (ONT) to Caribbean

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
jun. 29 — jul. 61
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Cheap flight deals from Ontario to Caribbean

Cheapest flights from Ontario to Caribbean
Explore the most affordable flight options available from Ontario to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 30, 2026.

This American Airlines deal was found by Cheapflights users on 5/29. 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.
vie. 8/1411:59 pm
ONT
-
SJU
2 stops15h 31m
American Airlines
mar. 8/186:00 am
SJU
-
ONT
2 stops15h 47m
American Airlines
Deal found 5/29$374
This American Airlines deal was found by Cheapflights users on 5/28. 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.
mié. 8/2611:59 pm
ONT
-
SJU
1 stop11h 55m
American Airlines
sáb. 8/296:00 am
SJU
-
ONT
2 stops15h 15m
American Airlines
Deal found 5/28$379
This American Airlines deal was found by Cheapflights users on 5/29. 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.
sáb. 8/2210:10 pm
ONT
-
MBJ
1 stop13h 24m
American Airlines
vie. 8/2812:47 pm
MBJ
-
ONT
1 stop12h 11m
American Airlines
Deal found 5/29$392
This American Airlines deal was found by Cheapflights users on 5/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1112:59 pm
ONT
-
SJU
2 stops17h 44m
American Airlines
vie. 8/1412:55 am
SJU
-
ONT
2 stops14h 08m
American Airlines
Deal found 5/26$418
This United Airlines deal was found by Cheapflights users on 5/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/255:00 am
ONT
-
SJU
1 stop9h 38m
United Airlines
lun. 9/282:55 pm
SJU
-
ONT
1 stop10h 03m
United Airlines
Deal found 5/28$424
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/110:59 pm
ONT
-
SJU
1 stop9h 37m
Delta
jue. 11/123:35 pm
SJU
-
ONT
1 stop10h 39m
Delta
Deal found 5/28$432
This United Airlines deal was found by Cheapflights users on 5/27. 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.
vie. 12/45:00 am
ONT
-
SJU
1 stop9h 25m
United Airlines
mar. 12/82:25 pm
SJU
-
ONT
1 stop9h 55m
United Airlines
Deal found 5/27$438
This Southwest deal was found by Cheapflights users on 5/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/28:40 pm
ONT
-
SJU
2 stops11h 05m
Southwest
vie. 8/146:30 am
SJU
-
ONT
2 stops12h 00m
Southwest
Deal found 5/25$448
This American Airlines deal was found by Cheapflights users on 5/29. 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.
vie. 8/1411:59 pm
ONT
-
SJU
2 stops15h 31m
American Airlines
lun. 8/177:30 am
SJU
-
ONT
1 stop16h 41m
American Airlines
Deal found 5/29$454
This Priceline deal was found by Cheapflights users on 5/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1111:50 pm
ONT
-
SJU
1 stop19h 49m
Multiple Airlines
mié. 8/196:25 am
SJU
-
ONT
1 stop13h 23m
Multiple Airlines
Deal found 5/26$455
This American Airlines deal was found by Cheapflights users on 5/28. 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.
lun. 8/37:15 pm
ONT
-
SJU
2 stops12h 49m
American Airlines
mar. 8/43:40 pm
SJU
-
ONT
1 stop9h 54m
American Airlines
Deal found 5/28$457
This Southwest deal was found by Cheapflights users on 5/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/221:00 pm
ONT
-
SJU
2 stops17h 10m
Southwest
vie. 8/285:00 am
SJU
-
ONT
2 stops13h 15m
Southwest
Deal found 5/26$462

Find flight deals from Ontario to Caribbean

Keep the following information in mind while searching for Ontario to Caribbean flight deals. Data was last updated mayo 30, 2026.

Round-trip from

$374
(American Airlines)

One-way from

$172
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$460
From Ontario to Caribbean
One-way flight from Ontario to Caribbean
Highest demand for flights based on searches. 5% potential increase in price ($28 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Caribbean 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 mayo 30, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

vie. 10/23

5:50 pm-11:56 am

2 stops15h 06m

San Juan Luis Munoz Marin Intl

sáb. 10/31

12:46 pm-11:48 pm

2 stops14h 02m

$374

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

mar. 11/3

7:00 am-10:59 pm

1 stop11h 59m

San Juan Luis Munoz Marin Intl

mar. 11/10

1:55 pm-10:14 pm

1 stop12h 19m

$432

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

jue. 8/13

10:00 pm-11:46 am

1 stop10h 46m

San Juan Luis Munoz Marin Intl

dom. 8/16

2:59 pm-9:52 pm

1 stop9h 53m

$470

OntarioProvidenciales

ONT - PLS

ONTPLS

Ontario

lun. 6/22

6:30 pm-2:25 pm

2 stops16h 55m

Providenciales

vie. 6/26

3:30 pm-9:55 pm

1 stop9h 25m

$493
Quickest round-trip

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

sáb. 6/27

5:45 am-3:26 pm

1 stop7h 41m

Montego Bay Sangster Intl

sáb. 7/4

2:40 pm-9:57 pm

1 stop9h 17m

$519

OntarioSimpson Bay

ONT - SXM

ONTSXM

Ontario

dom. 7/5

1:11 pm-12:34 pm

2 stops20h 23m

Simpson Bay Princess Juliana

vie. 7/10

2:51 pm-10:34 pm

1 stop10h 43m

$526

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

sáb. 8/1

1:50 pm-1:30 pm

2 stops21h 40m

Montego Bay Sangster Intl

jue. 8/6

2:40 pm-12:12 pm

2 stops23h 32m

$527

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

jue. 7/30

5:00 am-1:30 pm

2 stops30h 30m

Montego Bay Sangster Intl

jue. 8/6

2:40 pm-9:55 pm

1 stop9h 15m

$544

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

lun. 8/3

10:10 pm-4:56 pm

2 stops15h 46m

Punta Cana

mar. 8/11

4:18 pm-9:34 am

2 stops20h 16m

$581

OntarioSimpson Bay

ONT - SXM

ONTSXM

Ontario

mié. 8/26

10:10 pm-1:42 pm

1 stop12h 32m

Simpson Bay Princess Juliana

dom. 8/30

2:42 pm-9:34 am

2 stops21h 52m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Caribbean

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $120). Flying from Ontario to Caribbean in May is currently the most expensive (average of $355). 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.

How far ahead should I book a flight from Ontario to Caribbean?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Caribbean. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Caribbean

Get insights into the airlines that provide service to Caribbean. 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 Caribbean. Reviews last updated mayo 30, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andJetBlue from Ontario to Caribbean. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Caribbean. 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 from for flights from Ontario to Caribbean?

    If you book a flight to Caribbean from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from Ontario to Caribbean?

    Departing from Ontario to Caribbean will take you 15h 06m. Ontario and Caribbean are separated by a distance of 3334 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Ontario to Caribbean are United Airlines ($142), Delta ($168), and Southwest ($178).

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

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $120). Flying from Ontario to Caribbean in May is currently the most expensive (average of $355). 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 Ontario to Caribbean

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to Caribbean

Discover the top 6 airlines that operate flights from Ontario to Caribbean. 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 mayo 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$137Average$467FlexibilityNo cancel feeOn-time62%
DeltaCheapest$292Average$552FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$318Average$626FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$360Average$648FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$419Average$658FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$421Average$652FlexibilityNo cancel feeOn-time62%

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