$147+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Mar 17 — Mar 241
1 adult, Economy
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Find cheap flights from Ontario to Caribbean Islands 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 Islands
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Cheapest flights from Ontario to Caribbean IslandsExplore 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 15, 2026.
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 15, 2026.
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 4/2410:26 pm
ONT
- SJU
1 stop19h 25m
American Airlines
Fri 5/17:25 am
SJU
- ONT
1 stop16h 42m
American Airlines
Deal found 2/12![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/151:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 2/14![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 2/12. 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 5/56:00 am
ONT
- SJU
2 stops12h 24m
United Airlines
Tue 5/127:20 am
SJU
- ONT
2 stops16h 16m
United Airlines
Deal found 2/12![United Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 2/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/81:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 2/15![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/13. 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 5/911:04 pm
ONT
- SJU
1 stop9h 42m
Delta
Thu 5/1412:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/13![Delta logo]()
$336
This Delta deal was found by Cheapflights users on 2/11. 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 9/87:00 am
ONT
- SJU
1 stop12h 23m
Delta
Wed 9/167:30 am
SJU
- ONT
1 stop13h 31m
Delta
Deal found 2/11![Delta logo]()
$347
This American Airlines deal was found by Cheapflights users on 2/12. 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 8/310:10 pm
ONT
- MBJ
1 stop15h 10m
American Airlines
Mon 8/104:25 pm
MBJ
- ONT
2 stops19h 34m
American Airlines
Deal found 2/12![American Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 2/13. 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 4/252:08 pm
ONT
- MBJ
2 stops19h 43m
American Airlines
Sun 5/312:56 pm
MBJ
- ONT
2 stops23h 13m
American Airlines
Deal found 2/13![American Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/117:40 pm
ONT
- SJU
1 stop12h 27m
Multiple Airlines
Mon 4/2010:55 am
SJU
- ONT
2 stops40h 00m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 2/12. 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 5/48:45 pm
ONT
- SJU
2 stops10h 50m
Southwest
Mon 5/185:05 am
SJU
- ONT
2 stops13h 10m
Southwest
Deal found 2/12![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Sat 5/167:40 am
SJU
- ONT
1 stop13h 21m
United Airlines
Deal found 2/14![United Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 2/12. 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 3/245:02 pm
ONT
- SXM
2 stops19h 26m
American Airlines
Wed 4/112:29 pm
SXM
- ONT
2 stops24h 37m
American Airlines
Deal found 2/12![American Airlines logo]()
$388
Best flights from Ontario to Caribbean IslandsDiscover carefully curated flight deals from Ontario to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 15, 2026.
Discover carefully curated flight deals from Ontario to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 15, 2026.
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/151:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 2/14![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 2/13. 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.
Mon 5/1111:04 pm
ONT
- SJU
1 stop9h 42m
Delta
Thu 5/1412:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/13![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 2/11. 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 4/152:08 pm
ONT
- MBJ
2 stops19h 43m
American Airlines
Sun 4/194:37 pm
MBJ
- ONT
2 stops19h 32m
American Airlines
Deal found 2/11![American Airlines logo]()
$362
This Frontier deal was found by Cheapflights users on 2/14. 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.
Sat 5/27:18 pm
ONT
- PUJ
2 stops14h 52m
Frontier
Thu 5/711:47 am
PUJ
- ONT
2 stops22h 44m
Frontier
Deal found 2/14![Frontier logo]()
$467
This Southwest deal was found by Cheapflights users on 2/11. 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 4/138:45 pm
ONT
- MBJ
2 stops14h 40m
Southwest
Wed 4/2212:15 pm
MBJ
- ONT
2 stops12h 10m
Southwest
Deal found 2/11![Southwest logo]()
$482
This CheapOair deal was found by Cheapflights users on 2/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:25 pm
ONT
- SDQ
1 stop15h 51m
JetBlue
Sat 5/2312:55 pm
SDQ
- ONT
1 stop12h 14m
JetBlue
Deal found 2/12![JetBlue logo]()
$506
This Mytrip deal was found by Cheapflights users on 2/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1511:02 pm
ONT
- PUJ
2 stops21h 22m
Multiple Airlines
Sat 3/217:12 am
PUJ
- ONT
2 stops18h 25m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 2/13. 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 5/97:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Tue 5/197:20 am
SJU
- ONT
2 stops18h 10m
United Airlines
Deal found 2/13![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 2/13. 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.
Sun 5/107:05 am
ONT
- SJU
1 stop12h 12m
Delta
Thu 5/1412:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/13![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 2/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/81:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 2/15![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/13. 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 5/127:05 am
ONT
- SJU
1 stop12h 12m
Delta
Fri 5/1512:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/13![Delta logo]()
$336
This Delta deal was found by Cheapflights users on 2/13. 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.
Sun 5/107:05 am
ONT
- SJU
1 stop12h 12m
Delta
Fri 5/1512:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/13![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 2/12. 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 4/2812:19 pm
ONT
- SDQ
2 stops18h 01m
American Airlines
Mon 5/44:00 pm
SDQ
- ONT
2 stops21h 09m
American Airlines
Deal found 2/12![American Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 2/12. 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 5/911:04 pm
ONT
- SJU
1 stop9h 42m
Delta
Thu 5/1412:50 pm
SJU
- ONT
1 stop12h 04m
Delta
Deal found 2/12![Delta logo]()
$346
This United Airlines deal was found by Cheapflights users on 2/12. 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 3/511:59 pm
ONT
- MBJ
1 stop10h 47m
United Airlines
Sun 3/81:48 pm
MBJ
- ONT
1 stop10h 30m
United Airlines
Deal found 2/12![United Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 2/11. 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 4/1311:55 pm
ONT
- MBJ
2 stops12h 00m
Southwest
Tue 4/2112:15 pm
MBJ
- ONT
2 stops12h 10m
Southwest
Deal found 2/11![Southwest logo]()
$482
This American Airlines deal was found by Cheapflights users on 2/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:12 am
ONT
- SDQ
2 stops10h 47m
American Airlines
Tue 8/187:00 am
SDQ
- ONT
2 stops18h 14m
American Airlines
Deal found 2/15![American Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 2/13. 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 4/115:10 am
ONT
- NAS
1 stop8h 00m
United Airlines
Fri 4/173:59 pm
NAS
- ONT
1 stop9h 27m
United Airlines
Deal found 2/13![United Airlines logo]()
$404
This Frontier deal was found by Cheapflights users on 2/11. 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 2/257:17 pm
ONT
- SDQ
2 stops12h 09m
Frontier
Sun 3/112:35 pm
SDQ
- ONT
2 stops15h 24m
Frontier
Deal found 2/11![Frontier logo]()
$546
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:59 pm
ONT
- SDQ
1 stop15h 29m
JetBlue
Tue 8/1810:10 am
SDQ
- ONT
1 stop15h 30m
JetBlue
Deal found 2/15![JetBlue logo]()
$561
This American Airlines deal was found by Cheapflights users on 2/11. 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 4/1311:29 pm
ONT
- MBJ
1 stop11h 50m
American Airlines
Tue 4/2112:25 pm
MBJ
- ONT
2 stops23h 44m
American Airlines
Deal found 2/11![American Airlines logo]()
$491
This Priceline deal was found by Cheapflights users on 2/13. 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 5/2011:25 pm
ONT
- SDQ
1 stop17h 09m
JetBlue
Wed 5/273:30 pm
SDQ
- ONT
1 stop33h 39m
JetBlue
Deal found 2/13![JetBlue logo]()
$601
This Southwest deal was found by Cheapflights users on 2/11. 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 3/59:55 pm
ONT
- STT
2 stops13h 25m
Southwest
Mon 3/91:50 pm
STT
- ONT
2 stops21h 00m
Southwest
Deal found 2/11![Southwest logo]()
$612
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:10 am
ONT
- MBJ
1 stop8h 35m
United Airlines
Sat 4/1112:52 pm
MBJ
- ONT
1 stop9h 44m
United Airlines
Deal found 2/14![United Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 2/12. 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 4/294:52 pm
ONT
- SXM
2 stops19h 30m
American Airlines
Wed 5/612:41 pm
SXM
- ONT
2 stops22h 58m
American Airlines
Deal found 2/12![American Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 2/12. 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 4/256:49 pm
ONT
- MBJ
2 stops16h 01m
United Airlines
Sun 5/32:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 2/12![United Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 2/14. 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 8/1110:29 pm
ONT
- PUJ
1 stop9h 33m
American Airlines
Tue 8/184:05 pm
PUJ
- ONT
2 stops20h 54m
American Airlines
Deal found 2/14![American Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:37 am
ONT
- MBJ
2 stops24h 53m
United Airlines
Thu 5/284:12 pm
MBJ
- ONT
2 stops27h 16m
United Airlines
Deal found 2/14![United Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 2/14. 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 3/2411:58 pm
ONT
- PUJ
2 stops11h 56m
American Airlines
Wed 4/14:43 pm
PUJ
- ONT
2 stops20h 23m
American Airlines
Deal found 2/14![American Airlines logo]()
$519
This Southwest deal was found by Cheapflights users on 2/13. 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 6/179:40 pm
ONT
- AUA
2 stops14h 05m
Southwest
Tue 6/231:45 pm
AUA
- ONT
2 stops11h 50m
Southwest
Deal found 2/13![Southwest logo]()
$702
Last-minute flights from Ontario to Caribbean IslandsDiscover last-minute flight deals from Ontario to Caribbean Islands. Data last updated February 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean Islands. Data last updated February 15, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 2/11. 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 2/237:55 pm
ONT
- SJU
2 stops11h 25m
Southwest
Thu 2/267:00 am
SJU
- ONT
2 stops13h 45m
Southwest
Deal found 2/11![Southwest logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 2/12. 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
Tue 3/34:11 pm
SJU
- ONT
2 stops33h 23m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 2/11. 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 2/281:45 pm
ONT
- SJU
2 stops12h 26m
United Airlines
Wed 3/43:46 pm
SJU
- ONT
1 stop10h 13m
United Airlines
Deal found 2/11![United Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 2/12. 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.
Sun 3/19:50 am
ONT
- SJU
2 stops11h 45m
Southwest
Fri 3/66:00 am
SJU
- ONT
1 stop12h 05m
Southwest
Deal found 2/12![Southwest logo]()
$439
This American Airlines deal was found by Cheapflights users on 2/12. 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 3/511:58 pm
ONT
- MBJ
1 stop11h 55m
American Airlines
Sun 3/81:27 pm
MBJ
- ONT
2 stops21h 24m
American Airlines
Deal found 2/12![American Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 2/12. 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 3/511:59 pm
ONT
- MBJ
1 stop10h 47m
United Airlines
Sun 3/81:48 pm
MBJ
- ONT
1 stop10h 30m
United Airlines
Deal found 2/12![United Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 2/11. 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 3/115:02 pm
ONT
- SJU
2 stops12h 58m
American Airlines
Wed 3/187:40 am
SJU
- ONT
1 stop16h 44m
American Airlines
Deal found 2/11![American Airlines logo]()
$381
This American Airlines deal was found by Cheapflights users on 2/11. 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 3/115:02 pm
ONT
- SJU
2 stops12h 58m
American Airlines
Tue 3/171:23 pm
SJU
- ONT
2 stops11h 44m
American Airlines
Deal found 2/11![American Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/3112:05 pm
SJU
- ONT
2 stops35h 55m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 2/11. 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 3/245:02 pm
ONT
- SXM
2 stops17h 19m
American Airlines
Wed 4/14:28 pm
SXM
- ONT
2 stops24h 20m
American Airlines
Deal found 2/11![American Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 stops29h 02m
Multiple Airlines
Tue 3/316:55 pm
SJU
- ONT
1 stop24h 28m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 2/11. 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 3/247:59 pm
ONT
- SJU
2 stops11h 57m
American Airlines
Tue 3/317:40 am
SJU
- ONT
2 stops14h 29m
American Airlines
Deal found 2/11![American Airlines logo]()
$455
One-way flights from Ontario to Caribbean IslandsSearch for one-way flight options from Ontario to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated February 15, 2026.
Search for one-way flight options from Ontario to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated February 15, 2026.
This American Airlines deal was found by Cheapflights users on 2/11. 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 5/2412:40 pm
ONT
- SJU
1 stop12h 55m
American Airlines
Deal found 2/11![American Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/208:59 pm
ONT
- SJU
2 stops17h 31m
Frontier
Deal found 2/11![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 4/238:26 am
ONT
- SJU
2 stops14h 35m
Frontier
Deal found 2/12![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/231:18 pm
ONT
- SJU
2 stops21h 04m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/1312:59 am
ONT
- STT
2 stops33h 32m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$189
This United Airlines deal was found by Cheapflights users on 2/12. 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 4/216:05 am
ONT
- SJU
2 stops12h 19m
United Airlines
Deal found 2/12![United Airlines logo]()
$192
This United Airlines deal was found by Cheapflights users on 2/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:30 pm
ONT
- SXM
2 stops15h 03m
United Airlines
Deal found 2/15![United Airlines logo]()
$202
This United Airlines deal was found by Cheapflights users on 2/13. 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 3/911:59 pm
ONT
- NAS
1 stop12h 23m
United Airlines
Deal found 2/13![United Airlines logo]()
$203
This Priceline deal was found by Cheapflights users on 2/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:25 pm
ONT
- SXM
1 stop11h 03m
JetBlue
Deal found 2/15![JetBlue logo]()
$205
This Southwest deal was found by Cheapflights users on 2/12. 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 2/2510:20 am
ONT
- SJU
2 stops10h 15m
Southwest
Deal found 2/12![Southwest logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 4/1911:44 am
ONT
- PUJ
2 stops30h 45m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 2/257:17 pm
ONT
- SJU
3 stops19h 41m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$207
Find 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 15, 2026.
Round-trip from | $294 (American Airlines) |
|---|---|
One-way from | $147 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $436 |
Cheapflights Fare Finder
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 15, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean Islands that are best for you.
Fly from
Ontario
Fly to
Caribbean Islands
Route
Depart
Return
Price
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/11
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Fri 5/15
1:40 pm-8:36 pm
1 stop9h 56m
$319
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 5/9
7:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Tue 5/19
7:20 am-10:30 pm
2 stops18h 10m
$320
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/5
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Fri 5/8
1:00 am-12:22 pm
2 stops14h 22m
$334
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/11
11:04 pm-11:46 am
1 stop9h 42m
San Juan Luis Munoz Marin Intl
Thu 5/14
12:50 pm-9:54 pm
1 stop12h 04m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 5/10
7:05 am-10:17 pm
1 stop12h 12m
San Juan Luis Munoz Marin Intl
Thu 5/14
12:50 pm-9:54 pm
1 stop12h 04m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/12
7:05 am-10:17 pm
1 stop12h 12m
San Juan Luis Munoz Marin Intl
Fri 5/15
12:50 pm-9:54 pm
1 stop12h 04m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 5/10
7:05 am-10:17 pm
1 stop12h 12m
San Juan Luis Munoz Marin Intl
Fri 5/15
12:50 pm-9:54 pm
1 stop12h 04m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 5/9
11:04 pm-11:46 am
1 stop9h 42m
San Juan Luis Munoz Marin Intl
Thu 5/14
12:50 pm-9:54 pm
1 stop12h 04m
$346
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Wed 4/15
2:08 pm-11:51 am
2 stops19h 43m
Montego Bay Sangster Intl
Sun 4/19
4:37 pm-10:09 am
2 stops19h 32m
$362
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Thu 3/5
11:59 pm-1:46 pm
1 stop10h 47m
Montego Bay Sangster Intl
Sun 3/8
1:48 pm-10:18 pm
1 stop10h 30m
$390
Showing 1-10 of 60 results
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.
ONT-MBJ
ONT-SJU
ONT-SXM
ONT-STT
ONT-NAS
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 Islands
ONT-zzEPX
ONT-MBJ
ONT-SJU
ONT-SXM
ONT-STT
What is the cheapest month to book a flight from Ontario to Caribbean Islands?
Currently, April is the cheapest month in which you can book a flight from Ontario to Caribbean Islands (average of $137). Flying from Ontario to Caribbean Islands 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 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 15, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Ontario to Caribbean Islands have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
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 Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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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.
Complete your trip
Complete your trip to Caribbean Islands by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Caribbean Islands by cabin class
Find flights from Ontario to Caribbean Islands, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Caribbean Islands flights
Browse other Ontario and Caribbean Islands flight options. Last updated on February 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Caribbean Islands flights
Consider these flights traveling from Ontario to Caribbean Islands.
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 15, 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$616 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$365 | Average$686 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$690 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$465 | Average$711 | FlexibilityNo cancel fee | On-time63% |