$122+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
May 11 — May 181
Round-trip
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
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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 April 11, 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 April 11, 2026.
This American Airlines deal was found by Cheapflights users on 4/7. 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 8/196:17 am
ONT
- SJU
2 stops14h 23m
American Airlines
Tue 8/2510:32 am
SJU
- ONT
2 stops13h 56m
American Airlines
Deal found 4/7![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/11:59 pm
ONT
- SJU
1 stop30h 11m
Multiple Airlines
Sun 5/103:12 pm
SJU
- ONT
2 stops43h 23m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 4/8. 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
Fri 9/253:42 pm
SJU
- ONT
1 stop10h 24m
American Airlines
Deal found 4/8![American Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/108:30 am
ONT
- SJU
1 stop26h 02m
Multiple Airlines
Sat 5/166:41 pm
SJU
- ONT
2 stops42h 24m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$386
This FlightHub deal was found by Cheapflights users on 4/9. 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.
Wed 5/610:50 am
ONT
- MBJ
2 stops47h 21m
Frontier
Wed 5/131:16 pm
MBJ
- ONT
2 stops20h 19m
Frontier
Deal found 4/9![Frontier logo]()
$389
This American Airlines deal was found by Cheapflights users on 4/6. 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 8/2211:59 pm
ONT
- MBJ
1 stop14h 18m
American Airlines
Fri 8/281:35 pm
MBJ
- ONT
1 stop9h 53m
American Airlines
Deal found 4/6![American Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 4/8. 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 8/81:18 pm
ONT
- SJU
2 stops13h 11m
United Airlines
Tue 8/182:20 pm
SJU
- ONT
1 stop10h 39m
United Airlines
Deal found 4/8![United Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/228:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Tue 4/2811:30 am
SJU
- ONT
2 stops39h 25m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 4/9. 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
Wed 5/612:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 4/9![Delta logo]()
$404
This American Airlines deal was found by Cheapflights users on 4/9. 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 5/187:35 pm
ONT
- SJU
2 stops13h 28m
American Airlines
Sat 5/237:00 am
SJU
- ONT
1 stop18h 36m
American Airlines
Deal found 4/9![American Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 4/258:00 am
ONT
- SJU
1 stop12h 10m
Multiple Airlines
Sun 5/33:31 pm
SJU
- ONT
2 stops35h 24m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/235:59 pm
ONT
- SJU
2 stops44h 15m
Multiple Airlines
Fri 6/52:37 pm
SJU
- ONT
1 stop29h 27m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$415
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 April 11, 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 April 11, 2026.
This United Airlines deal was found by Cheapflights users on 4/6. 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 4/276:49 pm
ONT
- SJU
2 stops15h 56m
United Airlines
Wed 4/291:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 4/6![United Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 4/11. 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.
Sat 6/2711:59 pm
ONT
- MBJ
2 stops35h 32m
American Airlines
Sat 7/412:40 pm
MBJ
- ONT
2 stops25h 05m
American Airlines
Deal found 4/11![American Airlines logo]()
$483
This Southwest deal was found by Cheapflights users on 4/6. 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.
Sat 4/259:55 pm
ONT
- SJU
1 stop11h 30m
Southwest
Sun 5/35:00 am
SJU
- ONT
1 stop13h 10m
Southwest
Deal found 4/6![Southwest logo]()
$500
This Delta deal was found by Cheapflights users on 4/10. 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 4/1410:15 pm
ONT
- SJU
1 stop10h 30m
Delta
Tue 4/2112:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 4/10![Delta logo]()
$585
This JetBlue deal was found by Cheapflights users on 4/7. 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 5/2310:41 pm
ONT
- PUJ
1 stop10h 24m
JetBlue
Sat 5/3011:19 am
PUJ
- ONT
1 stop12h 28m
JetBlue
Deal found 4/7![JetBlue logo]()
$644
This Avianca deal was found by Cheapflights users on 4/6. 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.
Thu 9/311:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Tue 9/811:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 4/6![Avianca logo]()
$778
This United Airlines deal was found by Cheapflights users on 4/9. 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 5/35:00 am
ONT
- PUJ
1 stop9h 35m
United Airlines
Fri 5/81:25 pm
PUJ
- ONT
2 stops23h 16m
United Airlines
Deal found 4/9![United Airlines logo]()
$503
This Mytrip deal was found by Cheapflights users on 4/10. 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 5/179:36 pm
ONT
- CUR
3 stops33h 44m
Multiple Airlines
Fri 5/226:15 pm
CUR
- ONT
3 stops31h 50m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,025
This Southwest deal was found by Cheapflights users on 4/6. 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 7/279:40 pm
ONT
- NAS
2 stops12h 35m
Southwest
Fri 7/318:45 am
NAS
- ONT
2 stops10h 15m
Southwest
Deal found 4/6![Southwest logo]()
$514
This American Airlines deal was found by Cheapflights users on 4/7. 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 4/7![American Airlines logo]()
$541
This United Airlines deal was found by Cheapflights users on 4/9. 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 4/236:05 am
ONT
- SJU
1 stop11h 33m
United Airlines
Sat 5/27:00 am
SJU
- ONT
2 stops13h 52m
United Airlines
Deal found 4/9![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 4/7. 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 5/910:43 am
ONT
- MBJ
2 stops24h 47m
United Airlines
Sat 5/162:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 4/7![United Airlines logo]()
$537
This Southwest deal was found by Cheapflights users on 4/11. 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.
Wed 6/311:55 pm
ONT
- MBJ
2 stops13h 00m
Southwest
Mon 6/812:35 pm
MBJ
- ONT
1 stop11h 50m
Southwest
Deal found 4/11![Southwest logo]()
$637
This KAYAK deal was found by Cheapflights users on 4/6. 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.
Thu 5/2810:41 pm
ONT
- SDQ
1 stop10h 20m
JetBlue
Sun 5/315:02 am
SDQ
- ONT
1 stop18h 45m
JetBlue
Deal found 4/6![JetBlue logo]()
$705
This American Airlines deal was found by Cheapflights users on 4/9. 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 5/2312:41 pm
ONT
- SXM
2 stops21h 41m
American Airlines
Fri 5/292:53 pm
SXM
- ONT
1 stop10h 43m
American Airlines
Deal found 4/9![American Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 4/7. 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 5/121:40 pm
ONT
- MBJ
2 stops21h 50m
United Airlines
Sat 5/162:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 4/7![United Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 4/6. 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.
Thu 4/3010:15 pm
ONT
- SDQ
1 stop11h 57m
Delta
Mon 5/47:59 pm
SDQ
- ONT
2 stops18h 37m
Delta
Deal found 4/6![Delta logo]()
$760
This Southwest deal was found by Cheapflights users on 4/9. 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 5/159:55 pm
ONT
- MBJ
1 stop10h 40m
Southwest
Sun 5/172:40 pm
MBJ
- ONT
2 stops20h 05m
Southwest
Deal found 4/9![Southwest logo]()
$641
This United Airlines deal was found by Cheapflights users on 4/7. 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 5/235:00 am
ONT
- MBJ
1 stop8h 45m
United Airlines
Sat 5/304:33 pm
MBJ
- ONT
2 stops22h 14m
United Airlines
Deal found 4/7![United Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 4/10. 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
2 stops29h 40m
United Airlines
Wed 4/294:12 pm
MBJ
- ONT
2 stops32h 23m
United Airlines
Deal found 4/10![United Airlines logo]()
$537
This JetBlue deal was found by Cheapflights users on 4/9. 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 6/110:41 pm
ONT
- AUA
1 stop13h 24m
JetBlue
Fri 6/121:35 pm
AUA
- ONT
1 stop12h 03m
JetBlue
Deal found 4/9![JetBlue logo]()
$815
This American Airlines deal was found by Cheapflights users on 4/10. 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 5/811:59 pm
ONT
- AUA
1 stop13h 05m
American Airlines
Fri 5/155:25 pm
AUA
- ONT
2 stops22h 53m
American Airlines
Deal found 4/10![American Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 4/10. 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 9/211:44 pm
ONT
- MBJ
2 stops19h 59m
United Airlines
Thu 9/2412:52 pm
MBJ
- ONT
2 stops34h 29m
United Airlines
Deal found 4/10![United Airlines logo]()
$545
This Southwest deal was found by Cheapflights users on 4/9. 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 5/219:55 pm
ONT
- AUA
2 stops12h 40m
Southwest
Thu 5/282:35 pm
AUA
- ONT
2 stops21h 10m
Southwest
Deal found 4/9![Southwest logo]()
$726
This Delta deal was found by Cheapflights users on 4/7. 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 4/281:29 pm
ONT
- UVF
2 stops21h 33m
Delta
Thu 5/73:25 pm
UVF
- ONT
2 stops27h 52m
Delta
Deal found 4/7![Delta logo]()
$898
This Mytrip deal was found by Cheapflights users on 4/9. 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.
Thu 9/109:36 pm
ONT
- CUR
3 stops33h 44m
Multiple Airlines
Tue 9/1511:35 am
CUR
- ONT
2 stops13h 10m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,028
This Avianca deal was found by Cheapflights users on 4/8. 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 5/911:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Thu 5/1411:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 4/8![Avianca logo]()
$1,044
This Priceline deal was found by Cheapflights users on 4/9. 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 8/2711:50 pm
ONT
- UVF
1 stop12h 16m
JetBlue
Thu 9/34:11 pm
UVF
- ONT
1 stop33h 24m
JetBlue
Deal found 4/9![JetBlue logo]()
$864
This Southwest deal was found by Cheapflights users on 4/7. 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 6/295:15 pm
ONT
- STT
2 stops17h 30m
Southwest
Sat 7/111:40 pm
STT
- ONT
2 stops12h 10m
Southwest
Deal found 4/7![Southwest logo]()
$732
This United Airlines deal was found by Cheapflights users on 4/10. 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 5/1010:37 am
ONT
- MBJ
2 stops24h 53m
United Airlines
Sat 5/1612:52 pm
MBJ
- ONT
2 stops25h 30m
United Airlines
Deal found 4/10![United Airlines logo]()
$552
Last-minute flights from Ontario to Caribbean IslandsDiscover last-minute flight deals from Ontario to Caribbean Islands. Data last updated April 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean Islands. Data last updated April 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/283:08 am
SJU
- ONT
2 stops23h 47m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/228:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Tue 4/2811:30 am
SJU
- ONT
2 stops39h 25m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 4/7. 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 4/226:15 am
ONT
- SJU
2 stops13h 47m
American Airlines
Tue 4/287:25 am
SJU
- ONT
2 stops13h 59m
American Airlines
Deal found 4/7![American Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 4/258:00 am
ONT
- SJU
1 stop12h 10m
Multiple Airlines
Sun 5/33:31 pm
SJU
- ONT
2 stops35h 24m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/11:59 pm
ONT
- SJU
1 stop30h 11m
Multiple Airlines
Sun 5/103:12 pm
SJU
- ONT
2 stops43h 23m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$373
This Frontier deal was found by Cheapflights users on 4/7. 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 5/15:33 pm
ONT
- PUJ
2 stops17h 21m
Frontier
Sun 5/1011:45 am
PUJ
- ONT
2 stops23h 04m
Frontier
Deal found 4/7![Frontier logo]()
$428
This Delta deal was found by Cheapflights users on 4/9. 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
Tue 5/57:30 am
SJU
- ONT
1 stop14h 03m
Delta
Deal found 4/9![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 4/9. 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
Wed 5/612:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 4/9![Delta logo]()
$404
This FlightHub deal was found by Cheapflights users on 4/9. 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.
Wed 5/610:50 am
ONT
- MBJ
2 stops47h 21m
Frontier
Wed 5/131:16 pm
MBJ
- ONT
2 stops20h 19m
Frontier
Deal found 4/9![Frontier logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/108:30 am
ONT
- SJU
1 stop26h 02m
Multiple Airlines
Sat 5/166:41 pm
SJU
- ONT
2 stops42h 24m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 4/9. 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 5/1811:29 pm
ONT
- SJU
1 stop9h 34m
American Airlines
Sat 5/237:00 am
SJU
- ONT
1 stop18h 36m
American Airlines
Deal found 4/9![American Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/235:59 pm
ONT
- SJU
2 stops44h 15m
Multiple Airlines
Fri 6/52:37 pm
SJU
- ONT
1 stop29h 27m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$415
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 April 11, 2026.
Search for one-way flight options from Ontario to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated April 11, 2026.
This Trip.com deal was found by Cheapflights users on 4/10. 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.
Sun 5/312:59 am
ONT
- SJU
2 stops34h 02m
Frontier
Deal found 4/10![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/8![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/158:06 pm
ONT
- SJU
2 stops32h 58m
Frontier
Deal found 4/10![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/212:59 am
ONT
- SJU
2 stops43h 30m
Frontier
Deal found 4/6![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/38:06 pm
ONT
- SJU
2 stops42h 08m
Frontier
Deal found 4/9![Frontier logo]()
$174
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/310:26 pm
ONT
- SJU
1 stop19h 25m
American Airlines
Deal found 4/6![American Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/235:59 pm
ONT
- PUJ
2 stops37h 36m
Frontier
Deal found 4/9![Frontier logo]()
$184
This Aviatur deal was found by Cheapflights users on 4/8. 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 Aviatur is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:50 pm
ONT
- NAS
1 stop13h 13m
JetBlue
Deal found 4/8![JetBlue logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/58:06 pm
ONT
- SJU
2 stops24h 53m
Frontier
Deal found 4/9![Frontier logo]()
$185
This Delta deal was found by Cheapflights users on 4/10. 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 5/1510:00 pm
ONT
- SJU
1 stop11h 01m
Delta
Deal found 4/10![Delta logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/810:50 am
ONT
- SJU
3 stops29h 09m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/165:59 pm
ONT
- PUJ
2 stops16h 31m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$197
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 April 11, 2026.
Round-trip from | $373 (Kiwi.com) |
|---|---|
One-way from | $122 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $429 |
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 April 11, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean Islands that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 4/27
6:49 pm-1:45 pm
2 stops15h 56m
San Juan Luis Munoz Marin Intl
Wed 4/29
1:00 am-12:22 pm
2 stops14h 22m
$464
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 6/27
11:59 pm-1:31 pm
2 stops35h 32m
Montego Bay Sangster Intl
Sat 7/4
12:40 pm-11:45 am
2 stops25h 05m
$483
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 4/25
9:55 pm-12:25 pm
1 stop11h 30m
San Juan Luis Munoz Marin Intl
Sun 5/3
5:00 am-3:10 pm
1 stop13h 10m
$500
OntarioPunta Cana
ONT - PUJ
ONTPUJ
Ontario
Sun 5/3
5:00 am-5:35 pm
1 stop9h 35m
Punta Cana
Fri 5/8
1:25 pm-9:41 am
2 stops23h 16m
$503
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Mon 7/27
9:40 pm-1:15 pm
2 stops12h 35m
Nassau Intl
Fri 7/31
8:45 am-4:00 pm
2 stops10h 15m
$514
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Thu 4/23
6:05 am-8:38 pm
1 stop11h 33m
San Juan Luis Munoz Marin Intl
Sat 5/2
7:00 am-5:52 pm
2 stops13h 52m
$522
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 5/9
10:43 am-1:30 pm
2 stops24h 47m
Montego Bay Sangster Intl
Sat 5/16
2:40 pm-9:58 pm
1 stop9h 18m
$537
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Tue 5/12
1:40 pm-1:30 pm
2 stops21h 50m
Montego Bay Sangster Intl
Sat 5/16
2:40 pm-9:58 pm
1 stop9h 18m
$537
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 5/23
5:00 am-3:45 pm
1 stop8h 45m
Montego Bay Sangster Intl
Sat 5/30
4:33 pm-12:47 pm
2 stops22h 14m
$537
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 4/25
5:10 am-12:50 pm
2 stops29h 40m
Montego Bay Sangster Intl
Wed 4/29
4:12 pm-10:35 pm
2 stops32h 23m
$537
Showing 1-10 of 60 resultsSorted by cheapest first
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-SJU
ONT-PUJ
ONT-NAS
ONT-MBJ
ONT-SDQ
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-SJU
ONT-PUJ
ONT-NAS
ONT-MBJ
What is the cheapest month to book a flight from Ontario to Caribbean Islands?
Currently, October is the cheapest month in which you can book a flight from Ontario to Caribbean Islands (average of $181). Flying from Ontario to Caribbean Islands in November is currently the most expensive (average of $275). 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 April 11, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
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 April 11, 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 April 11, 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$625 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$650 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$607 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$445 | Average$619 | FlexibilityNo cancel fee | On-time63% |