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$90+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Ontario to Caribbean

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Caribbean (0CB). 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 January 16, 2025.

Round-trip from

$345
(Delta)

One-way from

$109
(Trip.com)
From Ontario to Caribbean
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One-way flight from Ontario to Caribbean
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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 January 16, 2025.

This American Airlines deal was found by Cheapflights users on 1/16. 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.
Sat 9/68:04 pmONT - SJU
2 stops15h 43mAmerican Airlines
Wed 9/108:30 amSJU - ONT
2 stops16h 10mAmerican Airlines
Deal found 1/16$345
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Tue 2/46:00 amONT - SJU
2 stops14h 36mUnited Airlines
Fri 2/78:10 amSJU - ONT
2 stops17h 47mUnited Airlines
Deal found 1/16$358
This Delta deal was found by Cheapflights users on 1/16. 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 10/2410:59 pmONT - SJU
1 stop11h 42mDelta
Fri 11/73:45 pmSJU - ONT
1 stop10h 44mDelta
Deal found 1/16$365
This Frontier deal was found by Cheapflights users on 1/14. 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 3/1212:59 amONT - PUJ
2 stops12h 40mFrontier
Sun 3/161:15 pmPUJ - ONT
2 stops21h 11mFrontier
Deal found 1/14$396
This Frontier deal was found by Cheapflights users on 1/15. 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 4/93:17 pmONT - SDQ
2 stops19h 27mFrontier
Thu 4/172:54 pmSDQ - ONT
2 stops19h 31mFrontier
Deal found 1/15$414
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/266:00 amONT - NAS
1 stop10h 51mAlaska Airlines
Tue 3/411:00 amNAS - ONT
1 stop13h 27mAlaska Airlines
Deal found 1/16$431
This JetBlue deal was found by Cheapflights users on 1/15. 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.
Sat 5/311:37 pmONT - NAS
1 stop14h 52mJetBlue
Wed 5/710:00 amNAS - ONT
1 stop15h 22mJetBlue
Deal found 1/15$485
This Southwest deal was found by Cheapflights users on 1/16. 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.
Wed 4/305:45 amONT - SJU
2 stops13h 45mSouthwest
Sun 5/45:50 amSJU - ONT
2 stops11h 00mSouthwest
Deal found 1/16$490
This JetBlue deal was found by Cheapflights users on 1/15. 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.
Fri 5/211:37 pmONT - PUJ
1 stop10h 24mJetBlue
Wed 5/711:05 amPUJ - ONT
1 stop14h 17mJetBlue
Deal found 1/15$495
This Trip.com deal was found by Cheapflights users on 1/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/212:43 pmONT - SJU
2 stops25h 09mFrontier
Fri 3/289:31 pmSJU - ONT
2 stops36h 55mFrontier
Deal found 1/15$498
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Tue 2/254:25 pmONT - SDQ
2 stops15h 30mAmerican Airlines
Mon 3/34:58 pmSDQ - ONT
2 stops21h 03mAmerican Airlines
Deal found 1/14$511
This American Airlines deal was found by Cheapflights users on 1/16. 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.
Sun 2/2311:59 pmONT - STT
2 stops11h 26mAmerican Airlines
Sun 3/26:35 pmSTT - ONT
2 stops18h 37mAmerican Airlines
Deal found 1/16$550

Find flights from Ontario to Caribbean within your budget

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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 2/22

7:05 am-11:46 pm

1 stop12h 41m

San Juan Luis Munoz Marin Intl

Fri 2/28

6:15 am-11:55 am

1 stop9h 40m

$345

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 2/4

6:00 am-12:36 am

2 stops14h 36m

San Juan Luis Munoz Marin Intl

Fri 2/7

3:46 pm-9:57 pm

1 stop10h 11m

$358

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Fri 2/21

11:59 pm-3:45 pm

2 stops11h 46m

San Juan Luis Munoz Marin Intl

Tue 2/25

6:30 am-1:58 pm

1 stop11h 28m

$365

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Wed 3/12

12:59 am-4:39 pm

2 stops12h 40m

Punta Cana

Sun 3/16

1:15 pm-7:26 am

2 stops21h 11m

$396

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Fri 3/14

10:44 am-6:52 pm

2 stops29h 08m

San Juan Luis Munoz Marin Intl

Sun 3/16

9:30 pm-3:04 pm

2 stops20h 34m

$409

OntarioSanto Domingo

ONT - SDQ

ONTSDQ

Ontario

Wed 4/9

3:17 pm-1:44 pm

2 stops19h 27m

Santo Domingo Las Americas

Thu 4/17

2:54 pm-7:25 am

2 stops19h 31m

$414

OntarioNassau

ONT - NAS

ONTNAS

Ontario

Wed 2/26

6:00 am-7:51 pm

1 stop10h 51m

Nassau Intl

Tue 3/4

11:00 am-9:27 pm

1 stop13h 27m

$431

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 3/25

7:55 pm-9:45 am

2 stops10h 50m

San Juan Luis Munoz Marin Intl

Tue 4/1

5:35 am-4:10 pm

2 stops13h 35m

$468

OntarioNassau

ONT - NAS

ONTNAS

Ontario

Sat 5/3

11:37 pm-5:29 pm

1 stop14h 52m

Nassau Intl

Wed 5/7

10:00 am-10:22 pm

1 stop15h 22m

$485

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Fri 5/2

11:37 pm-1:01 pm

1 stop10h 24m

Punta Cana

Wed 5/7

11:05 am-10:22 pm

1 stop14h 17m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

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.

Travel insights for flights from Ontario to Caribbean

Get recent, data-driven insights about flights from Ontario to Caribbean including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $254). Flying from Ontario to Caribbean in March is currently the most expensive (average of $378). 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 ONT to CB?

Find hourly flight availability from Ontario to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Caribbean as you normally would.

Rainfall in Caribbean by month

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

In terms of precipitation, rainfall in Caribbean ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Caribbean when rainfall is around 2.2 in.

Temperature in Caribbean by month

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

If weather is an important factor for your trip to Caribbean, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 January 16, 2025.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Copa Airlines
7.7
Good
1,658 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Aeromexico
7.5
Good
1,849 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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.

  • 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 Frontier ($109), Delta ($173), and JetBlue ($189).

  • 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 - Montego Bay Sangster 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, September is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $254). Flying from Ontario to Caribbean in March is currently the most expensive (average of $378). 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$260Average$382FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$273Average$714FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$322Average$656FlexibilityNo cancel feeOn-time69%
DeltaCheapest$334Average$641FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$358Average$768FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$374Average$634FlexibilityNo cancel feeOn-time63%
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