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Caribbean Islands

$127+ Cheap flights from Ontario (ONT) to Caribbean Islands

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Ontario to Caribbean Islands

Keep the following information in mind while searching for Ontario to Caribbean Islands flight deals. Data was last updated February 20, 2025.

Round-trip from

$274
(Trip.com)

One-way from

$127
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$426
From Ontario to Caribbean Islands
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One-way flight from Ontario to Caribbean Islands
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Highest demand for flights based on searches. 9% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Ontario to Caribbean Islands

Cheapest flights from Ontario to Caribbean Islands
Explore the most affordable flight options available from Ontario to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/19. 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.
Wed 3/512:59 amONT - SJU
2 stops41h 45mFrontier
Mon 3/109:35 pmSJU - ONT
2 stops29h 29mFrontier
Deal found 2/19$198
This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 4/27:00 amONT - SJU
1 stop13h 07mDelta
Wed 4/163:34 pmSJU - ONT
1 stop10h 02mDelta
Deal found 2/19$355
This JetBlue deal was found by Cheapflights users on 2/19. 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 5/310:40 pmONT - SJU
1 stop10h 50mJetBlue
Thu 5/811:55 amSJU - ONT
1 stop12h 27mJetBlue
Deal found 2/19$390
This Frontier deal was found by Cheapflights users on 2/19. 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 3/56:58 pmONT - PUJ
2 stops18h 41mFrontier
Sun 3/91:15 pmPUJ - ONT
2 stops21h 11mFrontier
Deal found 2/19$402
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/165:00 amONT - SJU
2 stops15h 54mUnited Airlines
Tue 4/291:05 amSJU - ONT
2 stops14h 33mUnited Airlines
Deal found 2/19$403
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/166:15 amONT - SJU
2 stops11h 13mAmerican Airlines
Wed 4/3011:45 amSJU - ONT
2 stops13h 13mAmerican Airlines
Deal found 2/19$405
This Trip.com deal was found by Cheapflights users on 2/20. 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 2/2810:34 amONT - STT
2 stops23h 04mMultiple Airlines
Wed 3/52:48 pmSTT - ONT
2 stops20h 38mMultiple Airlines
Deal found 2/20$445
This Frontier deal was found by Cheapflights users on 2/20. 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 4/97:58 pmONT - SDQ
2 stops14h 46mFrontier
Thu 4/172:54 pmSDQ - ONT
2 stops19h 31mFrontier
Deal found 2/20$470
This Southwest deal was found by Cheapflights users on 2/19. 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.
Thu 9/118:50 amONT - SJU
2 stops12h 00mSouthwest
Mon 9/155:00 amSJU - ONT
2 stops12h 15mSouthwest
Deal found 2/19$490
This JetBlue Airways deal was found by Cheapflights users on 2/19. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/810:40 pmONT - PUJ
1 stop12h 06mJetBlue
Tue 5/1311:35 amPUJ - ONT
1 stop12h 47mJetBlue
Deal found 2/19$505
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/13:55 pmONT - PUJ
2 stops18h 16mUnited Airlines
Mon 4/72:20 pmPUJ - ONT
2 stops25h 18mUnited Airlines
Deal found 2/19$509
This Trip.com deal was found by Cheapflights users on 2/20. 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.
Thu 4/34:15 pmONT - NAS
2 stops21h 10mMultiple Airlines
Wed 4/912:00 pmNAS - ONT
2 stops24h 22mMultiple Airlines
Deal found 2/20$516

Find flights from Ontario to Caribbean Islands within your budget

Customize your flight search to find flights from Ontario to Caribbean Islands 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 February 20, 2025.

Fly from

Ontario

Fly to

Caribbean Islands

Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 4/1

12:59 am-1:14 am

2 stops21h 15m

San Juan Luis Munoz Marin Intl

Tue 4/8

9:28 am-11:59 pm

2 stops17h 31m

$274

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Wed 3/5

6:58 pm-5:39 pm

2 stops18h 41m

Punta Cana

Sun 3/9

1:15 pm-7:26 am

2 stops21h 11m

$402

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Wed 4/16

6:15 am-8:28 pm

2 stops11h 13m

San Juan Luis Munoz Marin Intl

Wed 4/23

3:20 pm-10:10 pm

1 stop9h 50m

$405

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Mon 4/14

7:20 pm-10:20 am

2 stops12h 00m

San Juan Luis Munoz Marin Intl

Fri 4/18

7:40 am-4:10 pm

2 stops11h 30m

$465

OntarioSanto Domingo

ONT - SDQ

ONTSDQ

Ontario

Wed 4/9

7:58 pm-1:44 pm

2 stops14h 46m

Santo Domingo Las Americas

Thu 4/17

2:54 pm-7:25 am

2 stops19h 31m

$470

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Thu 5/8

10:40 pm-1:46 pm

1 stop12h 06m

Punta Cana

Tue 5/13

11:35 am-9:22 pm

1 stop12h 47m

$505

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Tue 4/1

3:55 pm-1:11 pm

2 stops18h 16m

Punta Cana

Mon 4/7

2:20 pm-12:38 pm

2 stops25h 18m

$509

OntarioNassau

ONT - NAS

ONTNAS

Ontario

Thu 4/3

4:15 pm-4:25 pm

2 stops21h 10m

Nassau Intl

Wed 4/9

12:00 pm-9:22 am

2 stops24h 22m

$516

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 4/26

6:10 am-8:38 pm

1 stop11h 28m

San Juan Luis Munoz Marin Intl

Tue 4/29

1:40 pm-8:42 pm

1 stop10h 02m

$520

OntarioNassau

ONT - NAS

ONTNAS

Ontario

Thu 5/1

6:08 am-3:58 pm

1 stop6h 50m

Nassau Intl

Fri 5/9

5:00 pm-10:00 pm

1 stop8h 00m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Caribbean Islands

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

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Caribbean Islands (average of $254). Flying from Ontario to Caribbean Islands in March is currently the most expensive (average of $363). 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 EPX?

Find hourly flight availability from Ontario to Caribbean Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 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 Islands as you normally would.

Rainfall in Caribbean Islands by month

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

In terms of precipitation, rainfall in Caribbean Islands 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 Islands when rainfall is around 2.2 in.

Temperature in Caribbean Islands by month

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

If weather is an important factor for your trip to Caribbean Islands, 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 Islands

Get insights into the airlines that provide service to Caribbean Islands. 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 Islands. Reviews last updated February 20, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Ontario to Caribbean Islands by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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 Islands. 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 Islands?

    If you book a flight to Caribbean Islands 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 Islands one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $127. However, be on the lookout for offers from Iberia and American Airlines, as they are both options that can get you from Ontario to Caribbean Islands for a low price.

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

    The most popular flight routes from Ontario to Caribbean Islands are Ontario - San Juan Luis Munoz Marin Intl, Ontario - Punta Cana and Ontario - Nassau Intl.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ontario to Caribbean Islands (average of $254). Flying from Ontario to Caribbean Islands in March is currently the most expensive (average of $363). 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.

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Alternative routes for Ontario to Caribbean Islands

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 Islands

Discover the top 6 airlines that operate flights from Ontario to Caribbean Islands. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$260Average$382FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$273Average$535FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$322Average$655FlexibilityNo cancel feeOn-time69%
DeltaCheapest$334Average$613FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$355Average$776FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$374Average$568FlexibilityNo cancel feeOn-time63%
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