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$162+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
feb. 7 — feb. 141
sáb. 2/7
sáb. 2/14
1 adult, Economy
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Cheap flight deals from Ontario to Caribbean

Keep the following information in mind while searching for Ontario to Caribbean flight deals. Data was last updated enero 8, 2026.

Round-trip from

$273
(Kiwi.com)

One-way from

$162
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$489
From Ontario to Caribbean
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One-way flight from Ontario to Caribbean
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Highest demand for flights based on searches. 9% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 enero 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
lun. 2/23:36 pmONT - SJU
1 stop16h 51mMultiple Airlines
jue. 2/58:00 amSJU - ONT
2 stops20h 20mMultiple Airlines
Deal found 1/7$273
This American Airlines deal was found by Cheapflights users on 1/5. 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. 1/314:45 pmONT - SJU
2 stops15h 42mAmerican Airlines
sáb. 2/76:05 amSJU - ONT
2 stops16h 15mAmerican Airlines
Deal found 1/5$284
This American Airlines deal was found by Cheapflights users on 1/7. 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. 2/2311:59 pmONT - SJU
1 stop8h 56mAmerican Airlines
vie. 2/272:44 pmSJU - ONT
1 stop10h 40mAmerican Airlines
Deal found 1/7$285
This Kiwi.com deal was found by Cheapflights users on 1/5. 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.
jue. 1/296:20 amONT - SJU
2 stops24h 04mMultiple Airlines
mié. 2/47:44 pmSJU - ONT
1 stop22h 43mMultiple Airlines
Deal found 1/5$301
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
jue. 1/292:06 pmONT - SJU
1 stop18h 21mMultiple Airlines
mar. 2/104:11 pmSJU - ONT
2 stops30h 11mMultiple Airlines
Deal found 1/6$303
This United Airlines deal was found by Cheapflights users on 1/7. 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.
dom. 2/16:00 amONT - SJU
1 stop11h 26mUnited Airlines
jue. 2/53:46 pmSJU - ONT
1 stop10h 12mUnited Airlines
Deal found 1/7$313
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
mié. 2/47:15 amONT - SJU
2 stops47h 32mMultiple Airlines
mié. 2/117:44 pmSJU - ONT
1 stop22h 45mMultiple Airlines
Deal found 1/7$315
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
sáb. 1/317:15 amONT - SJU
2 stops22h 39mMultiple Airlines
sáb. 2/77:44 pmSJU - ONT
1 stop24h 42mMultiple Airlines
Deal found 1/6$328
This Delta deal was found by Cheapflights users on 1/7. 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.
lun. 2/210:30 pmONT - SJU
1 stop12h 01mDelta
jue. 2/52:15 pmSJU - ONT
1 stop10h 50mDelta
Deal found 1/7$336
This American Airlines deal was found by Cheapflights users on 1/6. 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. 1/244:45 pmONT - SJU
2 stops15h 45mAmerican Airlines
sáb. 1/316:05 amSJU - ONT
2 stops16h 15mAmerican Airlines
Deal found 1/6$342
This Frontier deal was found by Cheapflights users on 1/7. 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.
vie. 2/209:43 pmONT - NAS
2 stops13h 52mFrontier
sáb. 2/283:35 pmNAS - ONT
2 stops11h 24mFrontier
Deal found 1/7$360
This American Airlines deal was found by Cheapflights users on 1/7. 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. 2/2112:26 pmONT - SXM
2 stops20h 03mAmerican Airlines
sáb. 2/285:28 pmSXM - ONT
2 stops22h 00mAmerican Airlines
Deal found 1/7$378

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 enero 8, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean that are best for you.

Fly from

Ontario

Fly to

Caribbean

Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

dom. 2/1

6:00 am-9:26 pm

1 stop11h 26m

San Juan Luis Munoz Marin Intl

jue. 2/5

8:10 am-9:58 pm

2 stops17h 48m

$284

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

dom. 2/8

10:30 pm-2:31 pm

1 stop12h 01m

San Juan Luis Munoz Marin Intl

jue. 2/12

2:12 pm-9:05 pm

1 stop10h 53m

$336

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

sáb. 2/21

6:00 am-9:26 pm

1 stop11h 26m

San Juan Luis Munoz Marin Intl

mié. 2/25

8:30 am-8:50 pm

2 stops16h 20m

$374

OntarioSimpson Bay

ONT - SXM

ONTSXM

Ontario

sáb. 2/21

12:26 pm-12:29 pm

2 stops20h 03m

Simpson Bay Princess Juliana

sáb. 2/28

5:28 pm-11:28 am

2 stops22h 00m

$378

OntarioNassau

ONT - NAS

ONTNAS

Ontario

vie. 2/6

11:59 pm-5:55 pm

2 stops14h 56m

Nassau Intl

vie. 2/13

3:47 pm-11:59 pm

1 stop11h 12m

$398

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

lun. 3/2

10:20 pm-1:01 pm

1 stop10h 41m

San Juan Luis Munoz Marin Intl

mar. 3/10

2:07 pm-11:50 pm

2 stops12h 43m

$398

OntarioSanto Domingo

ONT - SDQ

ONTSDQ

Ontario

mar. 1/27

10:58 am-12:21 pm

2 stops21h 23m

Santo Domingo Las Americas

mar. 2/3

6:00 am-6:45 pm

2 stops16h 45m

$411

OntarioSanto Domingo

ONT - SDQ

ONTSDQ

Ontario

mar. 1/27

12:57 pm-12:21 pm

2 stops19h 24m

Santo Domingo Las Americas

mié. 2/4

3:00 pm-10:08 am

2 stops23h 08m

$411

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

mié. 1/28

12:57 pm-1:34 pm

2 stops21h 37m

Montego Bay Sangster Intl

dom. 2/1

4:27 pm-10:48 pm

1 stop9h 21m

$430

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

jue. 1/22

5:05 am-6:25 pm

1 stop9h 20m

San Juan Luis Munoz Marin Intl

jue. 1/29

3:46 pm-9:58 pm

1 stop10h 12m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 60 results
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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, April is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $137). Flying from Ontario to Caribbean in January is currently the most expensive (average of $289). 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.

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 enero 8, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines 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.
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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.
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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.
Delta
7.9
Good
8,025 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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.
United Airlines
7.4
Good
9,139 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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.
American Airlines
7.2
Good
11,095 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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.
Frontier
5.7
Fair
3,062 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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 11h 26m. 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 Delta ($168), American Airlines ($172), and United Airlines ($178).

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

    The most popular route from Ontario to Caribbean is Ontario - San Juan Luis Munoz Marin Intl. You may also consider Ontario - Punta Cana or Ontario - Nassau Intl.

  • 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, April is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $137). Flying from Ontario to Caribbean in January is currently the most expensive (average of $289). 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.
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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 enero 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$493FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$636FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$321Average$621FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$365Average$692FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$421Average$690FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$480Average$716FlexibilityNo cancel feeOn-time63%

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