$138+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Mar 1 — Mar 81
1 adult, Economy
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Find cheap flights from Ontario to Caribbean with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Caribbean
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Cheapest flights from Ontario to CaribbeanExplore 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 30, 2026.
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 30, 2026.
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 3/16:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Thu 3/53:46 pm
SJU
- ONT
1 stop10h 50m
United Airlines
Deal found 1/28![United Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:10 am
ONT
- SJU
2 stops13h 14m
United Airlines
Thu 5/71:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 1/29![United Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:00 pm
ONT
- SJU
1 stop16h 07m
Multiple Airlines
Tue 3/3111:07 am
SJU
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Tue 3/2412:22 pm
ONT
- SJU
2 stops14h 06m
American Airlines
Thu 3/263:40 pm
SJU
- ONT
2 stops21h 26m
American Airlines
Deal found 1/29![American Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Sun 3/111:58 pm
ONT
- SJU
2 stops11h 51m
American Airlines
Thu 3/58:40 am
SJU
- ONT
1 stop16h 44m
American Airlines
Deal found 1/29![American Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Fri 4/242:55 pm
SJU
- ONT
1 stop9h 55m
United Airlines
Deal found 1/29![United Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:00 pm
ONT
- SJU
1 stop16h 07m
Multiple Airlines
Sun 3/291:59 am
SJU
- ONT
2 stops49h 00m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$376
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Tue 3/2411:58 pm
ONT
- SXM
2 stops12h 02m
American Airlines
Wed 4/12:17 pm
SXM
- ONT
2 stops22h 49m
American Airlines
Deal found 1/29![American Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:20 pm
ONT
- SJU
1 stop14h 47m
Multiple Airlines
Tue 3/3111:07 am
SJU
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:15 am
ONT
- SJU
2 stops25h 39m
Multiple Airlines
Tue 3/316:49 pm
SJU
- ONT
1 stop24h 34m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:15 am
ONT
- SJU
2 stops25h 52m
Multiple Airlines
Wed 3/256:49 pm
SJU
- ONT
1 stop24h 26m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Sun 11/15:00 am
ONT
- SJU
1 stop9h 25m
United Airlines
Mon 11/98:30 am
SJU
- ONT
2 stops18h 36m
United Airlines
Deal found 1/30![United Airlines logo]()
$395
Best flights from Ontario to CaribbeanDiscover carefully curated flight deals from Ontario to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 30, 2026.
Discover carefully curated flight deals from Ontario to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 30, 2026.
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 3/16:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Thu 3/53:46 pm
SJU
- ONT
1 stop10h 50m
United Airlines
Deal found 1/28![United Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 4/298:15 am
ONT
- SJU
1 stop24h 12m
Multiple Airlines
Sun 5/310:53 am
SJU
- ONT
2 stops40h 02m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 1/30. 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 2/1012:57 pm
ONT
- SJU
2 stops17h 51m
American Airlines
Tue 2/177:00 am
SJU
- ONT
2 stops15h 42m
American Airlines
Deal found 1/30![American Airlines logo]()
$430
This Southwest deal was found by Cheapflights users on 1/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:40 am
ONT
- SJU
1 stop11h 45m
Southwest
Sat 6/135:00 am
SJU
- ONT
1 stop17h 15m
Southwest
Deal found 1/29![Southwest logo]()
$458
This Frontier deal was found by Cheapflights users on 1/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:02 pm
ONT
- PUJ
2 stops14h 13m
Frontier
Sat 4/1811:07 am
PUJ
- ONT
2 stops14h 35m
Frontier
Deal found 1/29![Frontier logo]()
$552
This JetBlue deal was found by Cheapflights users on 1/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:25 pm
ONT
- PUJ
1 stop14h 36m
JetBlue
Tue 8/41:15 pm
PUJ
- ONT
1 stop11h 54m
JetBlue
Deal found 1/29![JetBlue logo]()
$553
This Delta deal was found by Cheapflights users on 1/28. 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.
Fri 2/2010:20 pm
ONT
- STT
1 stop10h 20m
Delta
Fri 2/271:50 pm
STT
- ONT
1 stop11h 15m
Delta
Deal found 1/28![Delta logo]()
$616
This Priceline deal was found by Cheapflights users on 1/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:30 pm
ONT
- SDQ
2 stops14h 20m
Avianca
Mon 3/25:45 pm
SDQ
- ONT
2 stops31h 10m
Avianca
Deal found 1/28![Avianca logo]()
$655
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:10 am
ONT
- SJU
2 stops13h 14m
United Airlines
Wed 5/61:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 1/29![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:37 pm
ONT
- MBJ
2 stops18h 35m
United Airlines
Thu 3/121:48 pm
MBJ
- ONT
1 stop10h 30m
United Airlines
Deal found 1/29![United Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 4/2912:19 pm
ONT
- SXM
2 stops20h 18m
American Airlines
Wed 5/62:21 pm
SXM
- ONT
2 stops22h 48m
American Airlines
Deal found 1/28![American Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 5/71:30 pm
ONT
- MBJ
2 stops22h 00m
United Airlines
Thu 5/142:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 1/28![United Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 1/30. 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 3/2410:36 pm
ONT
- PUJ
1 stop14h 00m
American Airlines
Wed 4/11:36 pm
PUJ
- ONT
2 stops22h 15m
American Airlines
Deal found 1/30![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 4/45:10 am
ONT
- NAS
1 stop8h 00m
United Airlines
Thu 4/92:53 pm
NAS
- ONT
1 stop9h 57m
United Airlines
Deal found 1/28![United Airlines logo]()
$424
This Frontier deal was found by Cheapflights users on 1/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/202:21 pm
ONT
- SDQ
2 stops18h 49m
Frontier
Sun 2/2212:35 pm
SDQ
- ONT
2 stops15h 24m
Frontier
Deal found 1/28![Frontier logo]()
$586
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/310:37 pm
ONT
- PUJ
2 stops13h 18m
American Airlines
Tue 3/102:20 pm
PUJ
- ONT
2 stops22h 46m
American Airlines
Deal found 1/28![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:59 pm
ONT
- SJU
2 stops15h 46m
United Airlines
Sat 5/237:40 am
SJU
- ONT
2 stops12h 38m
United Airlines
Deal found 1/29![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Sun 4/265:10 am
ONT
- SJU
1 stop9h 28m
United Airlines
Thu 4/301:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 1/30![United Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 3/111:58 pm
ONT
- PUJ
2 stops11h 42m
American Airlines
Sun 3/84:01 pm
PUJ
- ONT
2 stops21h 05m
American Airlines
Deal found 1/28![American Airlines logo]()
$514
This Priceline deal was found by Cheapflights users on 1/30. 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.
Sat 2/2110:30 pm
ONT
- SDQ
2 stops14h 20m
Avianca
Wed 2/255:45 pm
SDQ
- ONT
2 stops31h 10m
Avianca
Deal found 1/30![Avianca logo]()
$686
This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 4/2910:15 pm
ONT
- AUA
1 stop12h 55m
Delta
Wed 5/61:10 pm
AUA
- ONT
1 stop10h 50m
Delta
Deal found 1/28![Delta logo]()
$697
This Priceline deal was found by Cheapflights users on 1/30. 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.
Wed 5/2711:25 pm
ONT
- AUA
1 stop11h 45m
JetBlue
Mon 6/112:45 pm
AUA
- ONT
1 stop12h 24m
JetBlue
Deal found 1/30![JetBlue logo]()
$728
This Southwest deal was found by Cheapflights users on 1/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:25 pm
ONT
- AUA
2 stops17h 00m
Southwest
Sun 4/52:15 pm
AUA
- ONT
2 stops12h 25m
Southwest
Deal found 1/28![Southwest logo]()
$732
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Thu 3/2612:22 pm
ONT
- SDQ
2 stops17h 38m
American Airlines
Thu 4/22:15 pm
SDQ
- ONT
2 stops21h 36m
American Airlines
Deal found 1/29![American Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 pm
ONT
- SJU
2 stops14h 34m
United Airlines
Mon 6/11:40 pm
SJU
- ONT
1 stop9h 37m
United Airlines
Deal found 1/29![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1410:20 pm
ONT
- STT
1 stop10h 20m
Delta
Wed 2/183:10 pm
STT
- ONT
1 stop9h 55m
Delta
Deal found 1/29![Delta logo]()
$720
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:49 pm
ONT
- NAS
2 stops15h 58m
United Airlines
Wed 4/83:59 pm
NAS
- ONT
1 stop9h 27m
United Airlines
Deal found 1/29![United Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Mon 6/157:02 pm
ONT
- PUJ
2 stops14h 49m
American Airlines
Thu 6/251:51 pm
PUJ
- ONT
1 stop11h 06m
American Airlines
Deal found 1/30![American Airlines logo]()
$555
This Delta deal was found by Cheapflights users on 1/28. 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.
Fri 4/2410:15 pm
ONT
- PLS
1 stop11h 25m
Delta
Tue 4/282:05 pm
PLS
- ONT
1 stop9h 55m
Delta
Deal found 1/28![Delta logo]()
$802
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:10 am
ONT
- SJU
1 stop9h 28m
United Airlines
Thu 4/301:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 1/29![United Airlines logo]()
$474
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated January 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated January 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:53 pm
ONT
- SJU
2 stops12h 18m
United Airlines
Sat 2/148:30 am
SJU
- ONT
2 stops16h 20m
United Airlines
Deal found 1/29![United Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Sun 2/811:59 pm
ONT
- SJU
1 stop18h 27m
American Airlines
Wed 2/115:51 pm
SJU
- ONT
2 stops18h 58m
American Airlines
Deal found 1/29![American Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Mon 2/911:59 pm
ONT
- SJU
2 stops14h 23m
American Airlines
Wed 2/116:00 am
SJU
- ONT
2 stops16h 20m
American Airlines
Deal found 1/29![American Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Mon 2/95:05 am
ONT
- SJU
1 stop9h 20m
United Airlines
Fri 2/133:46 pm
SJU
- ONT
1 stop10h 13m
United Airlines
Deal found 1/30![United Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Sat 2/148:21 am
ONT
- SJU
1 stop23h 16m
Multiple Airlines
Sat 2/215:31 pm
SJU
- ONT
2 stops48h 59m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/161:18 pm
ONT
- SJU
2 stops16h 59m
Multiple Airlines
Mon 3/166:55 pm
SJU
- ONT
1 stop23h 10m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:37 pm
ONT
- PUJ
2 stops15h 45m
United Airlines
Wed 2/252:05 pm
PUJ
- ONT
1 stop10h 45m
United Airlines
Deal found 1/29![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Fri 2/201:45 pm
ONT
- NAS
1 stop23h 29m
United Airlines
Mon 3/23:35 pm
NAS
- ONT
2 stops29h 06m
United Airlines
Deal found 1/30![United Airlines logo]()
$517
This Frontier deal was found by Cheapflights users on 1/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:09 pm
ONT
- MBJ
2 stops10h 08m
Frontier
Sat 2/2812:40 pm
MBJ
- ONT
2 stops14h 19m
Frontier
Deal found 1/28![Frontier logo]()
$425
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 2/216:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Tue 2/242:05 am
SJU
- ONT
2 stops14h 38m
United Airlines
Deal found 1/28![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:00 am
ONT
- NAS
1 stop8h 14m
United Airlines
Tue 2/244:25 pm
NAS
- ONT
2 stops23h 18m
United Airlines
Deal found 1/29![United Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:06 pm
ONT
- SJU
1 stop17h 31m
Multiple Airlines
Sun 3/16:27 pm
SJU
- ONT
2 stops33h 32m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$538
One-way flights from Ontario to CaribbeanSearch for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated January 30, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated January 30, 2026.
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Tue 2/2410:37 pm
ONT
- SXM
1 stop11h 39m
American Airlines
Deal found 1/29![American Airlines logo]()
$138
This Delta deal was found by Cheapflights users on 1/28. 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.
Tue 4/2110:15 pm
ONT
- GCM
1 stop11h 45m
Delta
Deal found 1/28![Delta logo]()
$161
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Mon 4/611:58 pm
ONT
- NAS
2 stops13h 35m
American Airlines
Deal found 1/30![American Airlines logo]()
$182
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Deal found 1/29![United Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 3/186:15 am
ONT
- SJU
3 stops38h 43m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 1/30. 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 4/141:27 pm
ONT
- SXM
2 stops20h 06m
United Airlines
Deal found 1/30![United Airlines logo]()
$197
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1211:59 pm
ONT
- NAS
1 stop12h 23m
United Airlines
Deal found 1/29![United Airlines logo]()
$198
This Trip.com deal was found by Cheapflights users on 1/30. 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.
Mon 2/96:20 am
ONT
- SJU
2 stops28h 46m
Frontier
Deal found 1/30![Frontier logo]()
$198
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/148:21 am
ONT
- SJU
1 stop23h 16m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$199
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/241:50 pm
ONT
- SXM
2 stops20h 00m
United Airlines
Deal found 1/29![United Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Fri 2/272:21 pm
ONT
- SJU
1 stop17h 16m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$203
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:25 pm
ONT
- PLS
1 stop10h 38m
JetBlue
Deal found 1/28![JetBlue logo]()
$210
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 January 30, 2026.
Round-trip from | $284 (United Airlines) |
|---|---|
One-way from | $138 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $486 |
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 January 30, 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
Sun 3/1
6:00 am-9:26 pm
1 stop11h 26m
San Juan Luis Munoz Marin Intl
Thu 3/5
3:46 pm-10:36 pm
1 stop10h 50m
$284
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Wed 4/29
5:10 am-9:24 pm
2 stops13h 14m
San Juan Luis Munoz Marin Intl
Wed 5/6
1:00 am-12:22 pm
2 stops14h 22m
$397
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Wed 4/29
8:15 am-11:27 am
1 stop24h 12m
San Juan Luis Munoz Marin Intl
Sun 5/3
10:53 am-11:55 pm
2 stops40h 02m
$408
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Fri 3/6
6:37 pm-4:12 pm
2 stops18h 35m
Montego Bay Sangster Intl
Thu 3/12
1:48 pm-10:18 pm
1 stop10h 30m
$420
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Thu 5/7
1:30 pm-1:30 pm
2 stops22h 00m
Montego Bay Sangster Intl
Thu 5/14
2:40 pm-9:58 pm
1 stop9h 18m
$420
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Sat 4/4
5:10 am-4:10 pm
1 stop8h 00m
Nassau Intl
Thu 4/9
2:53 pm-9:50 pm
1 stop9h 57m
$424
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/18
6:59 pm-1:45 pm
2 stops15h 46m
San Juan Luis Munoz Marin Intl
Sat 5/23
7:40 am-5:18 pm
2 stops12h 38m
$424
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 4/26
5:10 am-5:38 pm
1 stop9h 28m
San Juan Luis Munoz Marin Intl
Thu 4/30
1:40 pm-8:36 pm
1 stop9h 56m
$424
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 2/10
12:57 pm-10:48 am
2 stops17h 51m
San Juan Luis Munoz Marin Intl
Tue 2/17
7:00 am-6:42 pm
2 stops15h 42m
$430
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/26
6:30 pm-12:04 pm
2 stops14h 34m
San Juan Luis Munoz Marin Intl
Mon 6/1
1:40 pm-8:17 pm
1 stop9h 37m
$434
Showing 1-10 of 60 results
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.
ONT-SJU
ONT-PUJ
ONT-STT
ONT-SDQ
ONT-MBJ
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
ONT-0CB
ONT-SJU
ONT-PUJ
ONT-STT
ONT-SDQ
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 $145). Flying from Ontario to Caribbean in November is currently the most expensive (average of $286). 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 January 30, 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.
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 January 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$493 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$611 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$617 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$365 | Average$694 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$690 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$480 | Average$714 | FlexibilityNo cancel fee | On-time63% |