$152+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
May 2 — May 91
Round-trip
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
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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 April 2, 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 April 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/218:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Tue 5/56:30 am
SJU
- ONT
2 stops30h 35m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/288:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Sun 5/33:31 pm
SJU
- ONT
2 stops45h 34m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 3/31. 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 9/1811:59 pm
ONT
- SJU
1 stop12h 03m
American Airlines
Mon 9/217:05 pm
SJU
- ONT
2 stops19h 43m
American Airlines
Deal found 3/31![American Airlines logo]()
$354
This Priceline deal was found by Cheapflights users on 3/30. 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.
Tue 5/510:50 am
ONT
- MBJ
2 stops23h 21m
Frontier
Tue 5/121:16 pm
MBJ
- ONT
2 stops20h 19m
Frontier
Deal found 3/30![Frontier logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/158:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Sat 4/181:59 am
SJU
- ONT
2 stops32h 32m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/218:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Mon 4/2711:30 am
SJU
- ONT
2 stops39h 25m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/217:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Tue 5/52:55 pm
SJU
- ONT
1 stop10h 03m
United Airlines
Deal found 3/29![United Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- SJU
2 stops29h 55m
Multiple Airlines
Tue 4/212:00 pm
SJU
- ONT
1 stop33h 39m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$370
This Priceline deal was found by Cheapflights users on 3/31. 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.
Sun 5/108:06 pm
ONT
- MBJ
2 stops14h 05m
Frontier
Fri 5/151:16 pm
MBJ
- ONT
2 stops22h 49m
Frontier
Deal found 3/31![Frontier logo]()
$375
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 5/27:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Mon 5/111:00 am
SJU
- ONT
2 stops14h 38m
United Airlines
Deal found 3/30![United Airlines logo]()
$376
This Priceline deal was found by Cheapflights users on 3/31. 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 5/18:20 pm
ONT
- MBJ
2 stops13h 52m
Frontier
Tue 5/51:16 pm
MBJ
- ONT
2 stops22h 49m
Frontier
Deal found 3/31![Frontier logo]()
$378
This Priceline deal was found by Cheapflights users on 3/30. 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.
Thu 5/148:06 pm
ONT
- MBJ
2 stops38h 05m
Frontier
Thu 5/211:16 pm
MBJ
- ONT
2 stops46h 49m
Frontier
Deal found 3/30![Frontier logo]()
$386
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 April 2, 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 April 2, 2026.
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/217:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Tue 5/52:55 pm
SJU
- ONT
1 stop10h 03m
United Airlines
Deal found 3/29![United Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 3/29. 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.
Wed 8/510:00 pm
ONT
- SJU
1 stop12h 32m
Delta
Wed 9/21:06 pm
SJU
- ONT
1 stop11h 50m
Delta
Deal found 3/29![Delta logo]()
$434
This Frontier deal was found by Cheapflights users on 4/2. 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 5/45:33 pm
ONT
- MBJ
2 stops16h 38m
Frontier
Mon 5/111:16 pm
MBJ
- ONT
2 stops20h 19m
Frontier
Deal found 4/2![Frontier logo]()
$435
This JetBlue deal was found by Cheapflights users on 3/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:56 pm
ONT
- SDQ
1 stop11h 28m
JetBlue
Wed 9/3012:47 pm
SDQ
- ONT
1 stop11h 42m
JetBlue
Deal found 3/28![JetBlue logo]()
$477
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:50 am
ONT
- SJU
2 stops12h 10m
Southwest
Mon 8/105:00 am
SJU
- ONT
2 stops13h 15m
Southwest
Deal found 3/30![Southwest logo]()
$492
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Sat 9/128:02 pm
ONT
- SXM
2 stops14h 13m
American Airlines
Sun 9/202:50 pm
SXM
- ONT
2 stops23h 39m
American Airlines
Deal found 3/29![American Airlines logo]()
$541
This Avianca deal was found by Cheapflights users on 4/1. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Tue 9/811:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 4/1![Avianca logo]()
$778
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/46:59 pm
ONT
- SJU
2 stops15h 46m
United Airlines
Tue 5/51:00 am
SJU
- ONT
2 stops14h 38m
United Airlines
Deal found 4/1![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 3/28. 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 4/147:05 am
ONT
- SJU
1 stop10h 19m
Delta
Tue 4/2112:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 3/28![Delta logo]()
$452
This JetBlue deal was found by Cheapflights users on 3/29. 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 8/3111:50 pm
ONT
- SXM
1 stop10h 52m
JetBlue
Fri 9/411:20 am
SXM
- ONT
1 stop14h 15m
JetBlue
Deal found 3/29![JetBlue logo]()
$501
This United Airlines deal was found by Cheapflights users on 3/28. 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 5/26:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Tue 5/57:00 am
SJU
- ONT
2 stops13h 52m
United Airlines
Deal found 3/28![United Airlines logo]()
$478
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Fri 5/229:36 pm
ONT
- CUR
2 stops16h 24m
Multiple Airlines
Tue 5/2611:35 am
CUR
- ONT
2 stops13h 10m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$1,103
This American Airlines deal was found by Cheapflights users on 4/1. 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 5/3010:00 pm
ONT
- NAS
2 stops12h 54m
American Airlines
Wed 6/31:32 pm
NAS
- ONT
2 stops12h 04m
American Airlines
Deal found 4/1![American Airlines logo]()
$556
This JetBlue deal was found by Cheapflights users on 3/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:40 pm
ONT
- SDQ
1 stop13h 21m
JetBlue
Thu 5/2811:13 am
SDQ
- ONT
1 stop12h 34m
JetBlue
Deal found 3/30![JetBlue logo]()
$529
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/286:05 am
ONT
- SDQ
2 stops13h 41m
United Airlines
Tue 5/56:00 am
SDQ
- ONT
2 stops17h 36m
United Airlines
Deal found 3/29![United Airlines logo]()
$481
This Southwest deal was found by Cheapflights users on 3/28. 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.
Fri 7/178:45 pm
ONT
- PUJ
2 stops12h 15m
Southwest
Wed 7/2212:35 pm
PUJ
- ONT
2 stops12h 40m
Southwest
Deal found 3/28![Southwest logo]()
$627
This American Airlines deal was found by Cheapflights users on 3/28. 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 5/64:35 pm
SXM
- ONT
2 stops21h 59m
American Airlines
Deal found 3/28![American Airlines logo]()
$576
This JetBlue deal was found by Cheapflights users on 4/1. 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 5/1611:10 pm
ONT
- STI
1 stop16h 53m
JetBlue
Sat 5/2310:28 am
STI
- ONT
1 stop13h 19m
JetBlue
Deal found 4/1![JetBlue logo]()
$562
This United Airlines deal was found by Cheapflights users on 3/29. 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 5/45:00 am
ONT
- MBJ
2 stops30h 30m
United Airlines
Thu 5/72:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 3/29![United Airlines logo]()
$517
This American Airlines deal was found by Cheapflights users on 3/28. 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.
Mon 5/2510:00 pm
ONT
- STI
2 stops20h 13m
American Airlines
Tue 6/23:38 pm
STI
- ONT
2 stops23h 12m
American Airlines
Deal found 3/28![American Airlines logo]()
$597
This Southwest deal was found by Cheapflights users on 4/1. 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.
Tue 6/305:15 am
ONT
- NAS
2 stops10h 15m
Southwest
Fri 7/38:45 am
NAS
- ONT
2 stops13h 10m
Southwest
Deal found 4/1![Southwest logo]()
$675
This JetBlue deal was found by Cheapflights users on 3/31. 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 5/1611:10 pm
ONT
- STI
1 stop16h 53m
JetBlue
Wed 5/2010:01 am
STI
- ONT
1 stop15h 09m
JetBlue
Deal found 3/31![JetBlue logo]()
$562
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 4/255:10 am
ONT
- MBJ
1 stop8h 35m
United Airlines
Wed 4/294:12 pm
MBJ
- ONT
2 stops32h 23m
United Airlines
Deal found 3/30![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 3/28. 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 4/251:34 pm
ONT
- MBJ
2 stops21h 16m
United Airlines
Sat 5/212:52 pm
MBJ
- ONT
1 stop9h 44m
United Airlines
Deal found 3/28![United Airlines logo]()
$517
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/2411:59 pm
ONT
- STI
2 stops18h 14m
American Airlines
Mon 6/17:03 am
STI
- ONT
2 stops19h 56m
American Airlines
Deal found 3/31![American Airlines logo]()
$637
This Delta deal was found by Cheapflights users on 3/29. 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.
Wed 4/2910:15 pm
ONT
- AUA
1 stop12h 55m
Delta
Wed 5/61:10 pm
AUA
- ONT
1 stop10h 50m
Delta
Deal found 3/29![Delta logo]()
$786
This Southwest deal was found by Cheapflights users on 4/2. 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 7/99:40 pm
ONT
- AUA
1 stop12h 05m
Southwest
Wed 7/151:45 pm
AUA
- ONT
2 stops11h 50m
Southwest
Deal found 4/2![Southwest logo]()
$726
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:41 pm
ONT
- STI
2 stops31h 39m
JetBlue
Tue 6/28:14 am
STI
- ONT
1 stop15h 33m
JetBlue
Deal found 4/1![JetBlue logo]()
$612
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Mon 7/65:00 am
ONT
- MBJ
2 stops30h 30m
United Airlines
Sat 7/1112:52 pm
MBJ
- ONT
1 stop9h 50m
United Airlines
Deal found 3/28![United Airlines logo]()
$517
This Avianca deal was found by Cheapflights users on 3/31. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Sat 5/911:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 3/31![Avianca logo]()
$923
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated April 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- SJU
2 stops29h 55m
Multiple Airlines
Tue 4/212:00 pm
SJU
- ONT
1 stop33h 39m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/158:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Sat 4/181:59 am
SJU
- ONT
2 stops32h 32m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/218:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Tue 5/56:30 am
SJU
- ONT
2 stops30h 35m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/218:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Mon 4/2711:30 am
SJU
- ONT
2 stops39h 25m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/217:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Tue 5/52:55 pm
SJU
- ONT
1 stop10h 03m
United Airlines
Deal found 3/29![United Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/288:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Sun 5/33:31 pm
SJU
- ONT
2 stops45h 34m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$353
This Priceline deal was found by Cheapflights users on 3/31. 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 5/18:20 pm
ONT
- MBJ
2 stops13h 52m
Frontier
Tue 5/51:16 pm
MBJ
- ONT
2 stops22h 49m
Frontier
Deal found 3/31![Frontier logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 5/27:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Mon 5/111:00 am
SJU
- ONT
2 stops14h 38m
United Airlines
Deal found 3/30![United Airlines logo]()
$376
This Priceline deal was found by Cheapflights users on 3/30. 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.
Tue 5/510:50 am
ONT
- MBJ
2 stops23h 21m
Frontier
Tue 5/121:16 pm
MBJ
- ONT
2 stops20h 19m
Frontier
Deal found 3/30![Frontier logo]()
$355
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/56:59 pm
ONT
- MBJ
2 stops18h 11m
United Airlines
Tue 5/122:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 3/30![United Airlines logo]()
$392
This Priceline deal was found by Cheapflights users on 3/31. 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.
Sun 5/108:06 pm
ONT
- MBJ
2 stops14h 05m
Frontier
Fri 5/151:16 pm
MBJ
- ONT
2 stops22h 49m
Frontier
Deal found 3/31![Frontier logo]()
$375
This Priceline deal was found by Cheapflights users on 3/30. 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.
Thu 5/148:06 pm
ONT
- MBJ
2 stops38h 05m
Frontier
Thu 5/211:16 pm
MBJ
- ONT
2 stops46h 49m
Frontier
Deal found 3/30![Frontier logo]()
$386
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 April 2, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/305:43 pm
ONT
- SJU
2 stops26h 46m
Frontier
Deal found 4/1![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/38:21 am
ONT
- SJU
2 stops14h 40m
Frontier
Deal found 3/31![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:06 pm
ONT
- SJU
2 stops32h 58m
Frontier
Deal found 3/28![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/710:50 am
ONT
- SJU
2 stops34h 07m
Frontier
Deal found 4/1![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/208:26 am
ONT
- SJU
2 stops30h 33m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$176
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:15 pm
ONT
- SJU
1 stop10h 30m
Delta
Deal found 3/30![Delta logo]()
$177
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Wed 4/2212:19 pm
ONT
- MBJ
2 stops18h 54m
American Airlines
Deal found 3/29![American Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 6/96:00 am
ONT
- SJU
2 stops32h 36m
Frontier
Deal found 4/1![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 6/66:00 am
ONT
- SJU
2 stops43h 01m
Frontier
Deal found 4/1![Frontier logo]()
$187
This United Airlines deal was found by Cheapflights users on 3/28. 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 5/37:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Deal found 3/28![United Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/2912:59 am
ONT
- SJU
3 stops22h 07m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/218:06 pm
ONT
- SJU
2 stops45h 34m
Frontier
Deal found 4/1![Frontier logo]()
$204
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 April 2, 2026.
Round-trip from | $346 (Kiwi.com) |
|---|---|
One-way from | $152 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $399 |
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 April 2, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 4/21
7:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Tue 5/5
2:55 pm-9:58 pm
1 stop10h 03m
$367
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Wed 8/5
10:00 pm-1:32 pm
1 stop12h 32m
San Juan Luis Munoz Marin Intl
Wed 9/2
1:06 pm-9:56 pm
1 stop11h 50m
$434
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Mon 5/4
5:33 pm-12:11 pm
2 stops16h 38m
Montego Bay Sangster Intl
Mon 5/11
1:16 pm-7:35 am
2 stops20h 19m
$435
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/4
6:59 pm-1:45 pm
2 stops15h 46m
San Juan Luis Munoz Marin Intl
Tue 5/5
1:00 am-12:38 pm
2 stops14h 38m
$439
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 4/14
7:05 am-8:24 pm
1 stop10h 19m
San Juan Luis Munoz Marin Intl
Tue 4/21
12:55 pm-9:00 pm
1 stop11h 05m
$452
OntarioSanto Domingo
ONT - SDQ
ONTSDQ
Ontario
Mon 9/28
10:56 pm-1:24 pm
1 stop11h 28m
Santo Domingo Las Americas
Wed 9/30
12:47 pm-9:29 pm
1 stop11h 42m
$477
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 5/2
6:00 am-8:38 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Tue 5/5
7:00 am-5:52 pm
2 stops13h 52m
$478
OntarioSanto Domingo
ONT - SDQ
ONTSDQ
Ontario
Tue 4/28
6:05 am-10:46 pm
2 stops13h 41m
Santo Domingo Las Americas
Tue 5/5
6:00 am-8:36 pm
2 stops17h 36m
$481
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 8/4
6:50 am-10:00 pm
2 stops12h 10m
San Juan Luis Munoz Marin Intl
Mon 8/10
5:00 am-3:15 pm
2 stops13h 15m
$492
OntarioSimpson Bay
ONT - SXM
ONTSXM
Ontario
Mon 8/31
11:50 pm-1:42 pm
1 stop10h 52m
Simpson Bay Princess Juliana
Fri 9/4
11:20 am-10:35 pm
1 stop14h 15m
$501
Showing 1-10 of 60 resultsSorted by cheapest first
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-MBJ
ONT-PUJ
ONT-NAS
ONT-STI
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-MBJ
ONT-PUJ
ONT-NAS
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 $141). 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 April 2, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
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.
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Alternative routes for Ontario to Caribbean
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Caribbean by cabin class
Find flights from Ontario to Caribbean, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Caribbean flights
Browse other Ontario and Caribbean flight options. Last updated on April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Caribbean countries
Consider these flights traveling to countries located in Caribbean.
Ontario to Caribbean flights
Consider these flights traveling from Ontario to Caribbean.
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 April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$467 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$292 | Average$826 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$624 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$656 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$607 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$445 | Average$621 | FlexibilityNo cancel fee | On-time63% |