$123+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
May 25 — Jun 11
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 25, 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 25, 2026.
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/1110:59 pm
ONT
- SJU
1 stop9h 57m
Delta
Wed 8/192:40 pm
SJU
- ONT
1 stop10h 16m
Delta
Deal found 4/23![Delta logo]()
$336
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 8/610:00 pm
ONT
- SJU
1 stop10h 46m
Delta
Thu 8/131:06 pm
SJU
- ONT
1 stop11h 50m
Delta
Deal found 4/21![Delta logo]()
$355
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/1112:59 pm
ONT
- SJU
2 stops17h 44m
American Airlines
Sat 8/225:46 pm
SJU
- ONT
2 stops18h 48m
American Airlines
Deal found 4/23![American Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 8/1111:59 pm
ONT
- SJU
2 stops15h 25m
American Airlines
Mon 8/177:14 pm
SJU
- ONT
2 stops17h 20m
American Airlines
Deal found 4/21![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 8/1410:59 pm
ONT
- SJU
1 stop9h 57m
Delta
Tue 8/182:40 pm
SJU
- ONT
1 stop10h 16m
Delta
Deal found 4/24![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/1110:59 pm
ONT
- SJU
1 stop9h 57m
Delta
Thu 8/201:06 pm
SJU
- ONT
1 stop11h 50m
Delta
Deal found 4/23![Delta logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:06 pm
ONT
- SJU
2 stops27h 02m
Frontier
Sat 5/236:25 am
SJU
- ONT
1 stop13h 39m
Frontier
Deal found 4/20![Frontier logo]()
$390
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 14m
American Airlines
Fri 8/2812:38 pm
MBJ
- ONT
1 stop10h 33m
American Airlines
Deal found 4/21![American Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 8/1410:59 pm
ONT
- SJU
1 stop9h 57m
Delta
Wed 8/191:06 pm
SJU
- ONT
1 stop11h 50m
Delta
Deal found 4/22![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 8/66:20 am
ONT
- SJU
2 stops10h 45m
Southwest
Thu 8/135:00 am
SJU
- ONT
2 stops12h 00m
Southwest
Deal found 4/22![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 6/310:00 pm
ONT
- MBJ
1 stop15h 34m
Delta
Wed 9/21:14 pm
MBJ
- ONT
1 stop10h 42m
Delta
Deal found 4/21![Delta logo]()
$412
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/1210:59 pm
ONT
- SJU
1 stop9h 57m
Delta
Mon 8/177:30 am
SJU
- ONT
1 stop13h 31m
Delta
Deal found 4/23![Delta logo]()
$413
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 25, 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 25, 2026.
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 8/910:00 pm
ONT
- SJU
1 stop10h 56m
Delta
Thu 8/207:30 am
SJU
- ONT
1 stop13h 31m
Delta
Deal found 4/24![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:45 am
ONT
- SJU
1 stop11h 53m
United Airlines
Tue 8/117:20 am
SJU
- ONT
2 stops13h 59m
United Airlines
Deal found 4/21![United Airlines logo]()
$419
This JetBlue deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Wed 9/211:20 am
SXM
- ONT
1 stop14h 15m
JetBlue
Deal found 4/20![JetBlue logo]()
$515
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/313:50 pm
ONT
- SJU
2 stops14h 20m
Southwest
Thu 6/46:30 am
SJU
- ONT
2 stops12h 30m
Southwest
Deal found 4/20![Southwest logo]()
$565
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/1610:26 pm
ONT
- SXM
1 stop11h 55m
American Airlines
Fri 5/292:53 pm
SXM
- ONT
1 stop10h 43m
American Airlines
Deal found 4/21![American Airlines logo]()
$567
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:36 pm
ONT
- SDQ
3 stops35h 14m
Multiple Airlines
Thu 9/107:59 pm
SDQ
- ONT
2 stops26h 47m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$948
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 9/265:00 am
ONT
- SJU
2 stops12h 38m
United Airlines
Tue 9/292:00 pm
SJU
- ONT
1 stop9h 52m
United Airlines
Deal found 4/22![United Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:16 pm
ONT
- SJU
2 stops16h 39m
Delta
Fri 8/72:42 pm
SJU
- ONT
2 stops12h 02m
Delta
Deal found 4/20![Delta logo]()
$497
This Air Canada deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:00 am
ONT
- KIN
2 stops30h 55m
Air Canada
Fri 10/23:05 pm
KIN
- ONT
2 stops31h 47m
Air Canada
Deal found 4/24![Air Canada logo]()
$1,073
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 8/41:18 pm
ONT
- SJU
2 stops13h 11m
United Airlines
Sat 8/81:40 pm
SJU
- ONT
1 stop10h 02m
United Airlines
Deal found 4/21![United Airlines logo]()
$551
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 6/39:55 pm
ONT
- MBJ
1 stop15h 00m
Southwest
Mon 6/812:35 pm
MBJ
- ONT
2 stops12h 55m
Southwest
Deal found 4/22![Southwest logo]()
$644
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:10 pm
ONT
- SXM
2 stops21h 41m
American Airlines
Thu 7/302:51 pm
SXM
- ONT
1 stop10h 43m
American Airlines
Deal found 4/20![American Airlines logo]()
$647
This Justfly.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1311:16 pm
ONT
- SXM
1 stop31h 49m
JetBlue
Sat 6/2011:20 am
SXM
- ONT
1 stop13h 34m
JetBlue
Deal found 4/20![JetBlue logo]()
$680
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:45 am
ONT
- NAS
1 stop7h 11m
United Airlines
Fri 7/244:58 pm
NAS
- ONT
1 stop7h 57m
United Airlines
Deal found 4/20![United Airlines logo]()
$604
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 6/159:40 pm
ONT
- MBJ
1 stop15h 15m
Southwest
Tue 6/233:55 pm
MBJ
- ONT
1 stop8h 40m
Southwest
Deal found 4/22![Southwest logo]()
$672
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 8/2110:59 pm
ONT
- GCM
1 stop10h 42m
Delta
Sat 8/2912:56 pm
GCM
- ONT
2 stops12h 48m
Delta
Deal found 4/22![Delta logo]()
$682
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:59 pm
ONT
- AUA
2 stops12h 12m
American Airlines
Wed 5/273:00 pm
AUA
- ONT
1 stop10h 36m
American Airlines
Deal found 4/20![American Airlines logo]()
$698
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:45 am
ONT
- NAS
1 stop7h 11m
United Airlines
Fri 6/53:59 pm
NAS
- ONT
1 stop9h 47m
United Airlines
Deal found 4/20![United Airlines logo]()
$604
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1911:55 pm
ONT
- MBJ
1 stop12h 05m
Southwest
Mon 6/2211:45 am
MBJ
- ONT
2 stops11h 20m
Southwest
Deal found 4/20![Southwest logo]()
$676
This JetBlue deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:50 pm
ONT
- MBJ
1 stop11h 14m
JetBlue
Thu 8/2710:45 am
MBJ
- ONT
1 stop13h 50m
JetBlue
Deal found 4/20![JetBlue logo]()
$756
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/510:00 pm
ONT
- GCM
1 stop11h 54m
Delta
Thu 6/1112:59 pm
GCM
- ONT
1 stop10h 49m
Delta
Deal found 4/23![Delta logo]()
$708
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:59 pm
ONT
- AUA
1 stop13h 05m
American Airlines
Sat 5/305:59 pm
AUA
- ONT
2 stops21h 06m
American Airlines
Deal found 4/20![American Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:45 am
ONT
- NAS
1 stop7h 11m
United Airlines
Sat 6/63:59 pm
NAS
- ONT
1 stop9h 47m
United Airlines
Deal found 4/22![United Airlines logo]()
$604
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/510:00 pm
ONT
- GCM
1 stop11h 54m
Delta
Fri 6/1212:59 pm
GCM
- ONT
1 stop10h 49m
Delta
Deal found 4/23![Delta logo]()
$708
This Expedia deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:41 pm
ONT
- SDQ
1 stop20h 01m
JetBlue
Tue 6/165:55 am
SDQ
- ONT
1 stop19h 44m
JetBlue
Deal found 4/25![JetBlue logo]()
$796
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/56:30 pm
ONT
- NAS
1 stop18h 40m
United Airlines
Wed 6/102:53 pm
NAS
- ONT
1 stop10h 02m
United Airlines
Deal found 4/23![United Airlines logo]()
$604
This Travelocity deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/215:00 am
ONT
- KIN
2 stops30h 55m
Multiple Airlines
Fri 7/32:20 am
KIN
- ONT
1 stop21h 41m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$978
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/510:00 pm
ONT
- GCM
1 stop11h 54m
Delta
Mon 6/812:59 pm
GCM
- ONT
1 stop10h 49m
Delta
Deal found 4/23![Delta logo]()
$708
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 6/177:20 pm
ONT
- AUA
2 stops16h 25m
Southwest
Sat 6/204:45 pm
AUA
- ONT
2 stops19h 35m
Southwest
Deal found 4/21![Southwest logo]()
$786
This KAYAK deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Fri 7/311:54 pm
ONT
- SXM
1 stop13h 23m
JetBlue
Tue 7/711:20 am
SXM
- ONT
1 stop14h 15m
JetBlue
Deal found 4/24![JetBlue logo]()
$803
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated April 25, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated April 25, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:44 pm
ONT
- PUJ
2 stops14h 26m
Frontier
Sat 5/212:02 pm
PUJ
- ONT
2 stops22h 24m
Frontier
Deal found 4/21![Frontier logo]()
$427
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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
- MBJ
1 stop11h 11m
American Airlines
Tue 5/1212:56 pm
MBJ
- ONT
2 stops11h 44m
American Airlines
Deal found 4/22![American Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/1012:24 pm
ONT
- SJU
2 stops13h 08m
American Airlines
Tue 5/125:45 am
SJU
- ONT
2 stops15h 39m
American Airlines
Deal found 4/21![American Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/1210:50 am
ONT
- SJU
2 stops27h 36m
Multiple Airlines
Fri 5/222:37 pm
SJU
- ONT
1 stop29h 27m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/1210:50 am
ONT
- SJU
2 stops27h 36m
Multiple Airlines
Sat 5/232:37 pm
SJU
- ONT
1 stop31h 34m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/1210:50 am
ONT
- SJU
2 stops27h 36m
Multiple Airlines
Mon 5/182:37 pm
SJU
- ONT
1 stop31h 34m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$461
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/1310:50 am
ONT
- SJU
2 stops34h 07m
Multiple Airlines
Fri 5/222:37 pm
SJU
- ONT
1 stop29h 27m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/138:06 pm
ONT
- SJU
2 stops27h 02m
Multiple Airlines
Sat 5/232:37 pm
SJU
- ONT
1 stop31h 34m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/146:00 am
ONT
- SJU
2 stops38h 57m
Multiple Airlines
Fri 5/222:37 pm
SJU
- ONT
1 stop29h 27m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$465
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:06 pm
ONT
- SJU
2 stops27h 02m
Frontier
Sat 5/236:25 am
SJU
- ONT
1 stop13h 39m
Frontier
Deal found 4/20![Frontier logo]()
$390
This Priceline deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/2910:41 pm
ONT
- SJU
1 stop23h 57m
Multiple Airlines
Thu 6/46:25 am
SJU
- ONT
1 stop15h 46m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$463
This Priceline deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:41 pm
ONT
- SJU
1 stop16h 19m
Multiple Airlines
Thu 6/46:25 am
SJU
- ONT
1 stop15h 46m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$450
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 25, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated April 25, 2026.
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Tue 5/124:39 pm
ONT
- SJU
2 stops18h 22m
Frontier
Deal found 4/21![Frontier logo]()
$123
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:33 pm
ONT
- SJU
2 stops27h 26m
Frontier
Deal found 4/20![Frontier logo]()
$169
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:59 pm
ONT
- MBJ
2 stops13h 38m
American Airlines
Deal found 4/20![American Airlines logo]()
$178
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/910:00 pm
ONT
- MBJ
1 stop15h 34m
Delta
Deal found 4/23![Delta logo]()
$182
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/710:00 pm
ONT
- MBJ
1 stop13h 06m
Delta
Deal found 4/23![Delta logo]()
$187
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 7/1210:00 pm
ONT
- SJU
1 stop10h 46m
Delta
Deal found 4/25![Delta logo]()
$187
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:12 pm
ONT
- SJU
2 stops18h 15m
Frontier
Deal found 4/20![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stops39h 15m
Frontier
Deal found 4/20![Frontier logo]()
$197
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:40 pm
ONT
- MBJ
1 stop24h 05m
United Airlines
Deal found 4/20![United Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/812:59 pm
ONT
- MBJ
2 stops20h 43m
American Airlines
Deal found 4/23![American Airlines logo]()
$207
This Trip.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:59 pm
ONT
- SJU
2 stops15h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$210
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 8/1112:33 pm
ONT
- MBJ
2 stops21h 09m
American Airlines
Deal found 4/23![American Airlines logo]()
$213
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 25, 2026.
Round-trip from | $336 (Delta) |
|---|---|
One-way from | $123 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $430 |
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 25, 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
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 8/9
10:00 pm-11:56 am
1 stop10h 56m
San Juan Luis Munoz Marin Intl
Thu 8/20
7:30 am-6:01 pm
1 stop13h 31m
$374
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Wed 8/5
5:45 am-8:38 pm
1 stop11h 53m
San Juan Luis Munoz Marin Intl
Tue 8/11
7:20 am-6:19 pm
2 stops13h 59m
$419
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 9/26
5:00 am-8:38 pm
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Tue 9/29
2:00 pm-8:52 pm
1 stop9h 52m
$489
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Fri 7/31
5:16 pm-12:55 pm
2 stops16h 39m
San Juan Luis Munoz Marin Intl
Fri 8/7
2:42 pm-11:44 pm
2 stops12h 02m
$497
OntarioSimpson Bay
ONT - SXM
ONTSXM
Ontario
Mon 8/31
11:50 pm-1:42 pm
1 stop10h 52m
Simpson Bay Princess Juliana
Wed 9/2
11:20 am-10:35 pm
1 stop14h 15m
$515
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 8/4
1:18 pm-5:29 am
2 stops13h 11m
San Juan Luis Munoz Marin Intl
Sat 8/8
1:40 pm-8:42 pm
1 stop10h 02m
$551
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 5/31
3:50 pm-9:10 am
2 stops14h 20m
San Juan Luis Munoz Marin Intl
Thu 6/4
6:30 am-4:00 pm
2 stops12h 30m
$565
OntarioSimpson Bay
ONT - SXM
ONTSXM
Ontario
Sat 5/16
10:26 pm-1:21 pm
1 stop11h 55m
Simpson Bay Princess Juliana
Fri 5/29
2:53 pm-10:36 pm
1 stop10h 43m
$567
Quickest round-trip
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Sun 7/19
5:45 am-3:56 pm
1 stop7h 11m
Nassau Intl
Fri 7/24
4:58 pm-9:55 pm
1 stop7h 57m
$604
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Tue 6/2
5:45 am-3:56 pm
1 stop7h 11m
Nassau Intl
Fri 6/5
3:59 pm-10:46 pm
1 stop9h 47m
$604
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-SXM
ONT-SDQ
ONT-KIN
ONT-MBJ
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Caribbean
ONT-0CB
ONT-SJU
ONT-SXM
ONT-SDQ
ONT-KIN
How far ahead should I book a flight from Ontario to Caribbean?
Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Caribbean. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Caribbean?
Currently, November is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $120). Flying from Ontario to Caribbean in August is currently the most expensive (average of $368). 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 25, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andJetBlue 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.
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
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. 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 25, 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$467 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$292 | Average$552 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$627 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$646 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$595 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$445 | Average$675 | FlexibilityNo cancel fee | On-time63% |