$192+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Aug 28 — Sep 41
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 July 29, 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 July 29, 2026.
This Delta deal was found by Cheapflights users on 7/29. 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.
Mon 10/265:03 pm
ONT
- SJU
2 stops16h 02m
Delta
Tue 11/37:45 am
SJU
- ONT
2 stops18h 58m
Delta
Deal found 7/29![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/251:52 pm
ONT
- MBJ
2 stops21h 38m
United Airlines
Sat 10/312:52 pm
MBJ
- ONT
1 stop10h 06m
United Airlines
Deal found 7/28![United Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/2110:00 pm
ONT
- MBJ
1 stop15h 34m
Delta
Thu 8/271:09 pm
MBJ
- ONT
1 stop10h 43m
Delta
Deal found 7/26![Delta logo]()
$433
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/255:00 am
ONT
- SJU
2 stops15h 50m
United Airlines
Tue 9/291:00 am
SJU
- ONT
2 stops14h 46m
United Airlines
Deal found 7/28![United Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/66:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Wed 9/91:00 am
SJU
- ONT
2 stops14h 50m
United Airlines
Deal found 7/28![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:15 pm
ONT
- MBJ
2 stops16h 18m
Delta
Sat 10/31:14 pm
MBJ
- ONT
2 stops24h 00m
Delta
Deal found 7/28![Delta logo]()
$447
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 11/17:49 pm
ONT
- SJU
2 stops13h 14m
American Airlines
Fri 11/136:28 am
SJU
- ONT
2 stops13h 51m
American Airlines
Deal found 7/26![American Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:40 pm
ONT
- SJU
2 stops11h 20m
Southwest
Fri 9/115:00 am
SJU
- ONT
2 stops12h 00m
Southwest
Deal found 7/28![Southwest logo]()
$469
This United Airlines deal was found by Cheapflights users on 7/28. 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 10/316:00 am
ONT
- GCM
1 stop7h 00m
United Airlines
Sun 11/155:45 pm
GCM
- ONT
2 stops21h 44m
United Airlines
Deal found 7/28![United Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Mon 9/281:00 am
SJU
- ONT
2 stops14h 46m
United Airlines
Deal found 7/24![United Airlines logo]()
$486
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 10/314:29 pm
ONT
- GCM
2 stops20h 16m
American Airlines
Sun 11/153:45 pm
GCM
- ONT
2 stops19h 54m
American Airlines
Deal found 7/26![American Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:34 pm
ONT
- SJU
2 stops12h 57m
American Airlines
Fri 10/3012:13 pm
SJU
- ONT
2 stops12h 41m
American Airlines
Deal found 7/29![American Airlines logo]()
$488
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 July 29, 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 July 29, 2026.
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Fri 9/117:00 am
SJU
- ONT
2 stops14h 11m
United Airlines
Deal found 7/25![United Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/314:29 pm
ONT
- GCM
2 stops20h 16m
American Airlines
Sun 11/153:45 pm
GCM
- ONT
2 stops19h 54m
American Airlines
Deal found 7/29![American Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/88:35 am
ONT
- SJU
2 stops10h 30m
Southwest
Fri 9/116:30 am
SJU
- ONT
2 stops12h 00m
Southwest
Deal found 7/27![Southwest logo]()
$514
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:00 pm
ONT
- AUA
1 stop11h 00m
Delta
Wed 9/91:55 pm
AUA
- ONT
2 stops25h 19m
Delta
Deal found 7/28![Delta logo]()
$606
This JetBlue deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/3011:59 pm
ONT
- SXM
1 stop10h 55m
JetBlue
Thu 9/311:40 am
SXM
- ONT
1 stop13h 58m
JetBlue
Deal found 7/26![JetBlue logo]()
$700
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:55 am
ONT
- SDQ
3 stops31h 55m
Multiple Airlines
Sat 9/2612:45 pm
SDQ
- ONT
3 stops34h 01m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$938
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:13 pm
ONT
- SJU
2 stops17h 29m
United Airlines
Thu 9/32:20 pm
SJU
- ONT
1 stop10h 39m
United Airlines
Deal found 7/24![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Thu 10/152:00 pm
SJU
- ONT
1 stop9h 58m
United Airlines
Deal found 7/25![United Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/2812:37 pm
ONT
- AUA
2 stops21h 53m
American Airlines
Sun 10/42:31 pm
AUA
- ONT
2 stops21h 29m
American Airlines
Deal found 7/26![American Airlines logo]()
$608
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:35 pm
ONT
- CUR
3 stops31h 45m
Avianca
Mon 9/76:15 pm
CUR
- ONT
3 stops30h 30m
Avianca
Deal found 7/25![Avianca logo]()
$1,219
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/127:00 am
ONT
- SJU
2 stops13h 50m
United Airlines
Tue 9/157:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/27![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 7/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:10 pm
ONT
- NAS
2 stops19h 05m
Southwest
Wed 10/282:10 pm
NAS
- ONT
2 stops9h 35m
Southwest
Deal found 7/24![Southwest logo]()
$664
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 10/246:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Sat 10/316:40 am
SJU
- ONT
2 stops16h 35m
United Airlines
Deal found 7/26![United Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/128:25 am
ONT
- SXM
2 stops25h 58m
American Airlines
Sun 9/202:23 pm
SXM
- ONT
2 stops22h 06m
American Airlines
Deal found 7/28![American Airlines logo]()
$615
This JetBlue deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/1711:59 pm
ONT
- SXM
1 stop10h 55m
JetBlue
Wed 9/211:40 am
SXM
- ONT
1 stop13h 57m
JetBlue
Deal found 7/26![JetBlue logo]()
$701
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/1912:37 pm
ONT
- PLS
2 stops20h 30m
American Airlines
Mon 9/281:07 pm
PLS
- ONT
2 stops23h 22m
American Airlines
Deal found 7/26![American Airlines logo]()
$643
This JetBlue deal was found by Cheapflights users on 7/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm
ONT
- NAS
1 stop13h 05m
JetBlue
Fri 9/41:30 pm
NAS
- ONT
1 stop12h 08m
JetBlue
Deal found 7/24![JetBlue logo]()
$709
This Delta deal was found by Cheapflights users on 7/28. 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 10/201:24 pm
ONT
- NAS
2 stops19h 26m
Delta
Wed 10/283:19 pm
NAS
- ONT
2 stops20h 36m
Delta
Deal found 7/28![Delta logo]()
$795
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/236:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Sat 1/307:45 am
SJU
- ONT
2 stops14h 02m
United Airlines
Deal found 7/24![United Airlines logo]()
$547
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:33 pm
ONT
- PLS
2 stops20h 32m
American Airlines
Sun 9/131:07 pm
PLS
- ONT
2 stops12h 36m
American Airlines
Deal found 7/28![American Airlines logo]()
$650
This JetBlue deal was found by Cheapflights users on 7/28. 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.
Sat 9/511:13 pm
ONT
- MBJ
1 stop11h 26m
JetBlue
Wed 9/911:35 am
MBJ
- ONT
1 stop11h 22m
JetBlue
Deal found 7/28![JetBlue logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 10/245:00 am
ONT
- MBJ
1 stop8h 45m
United Airlines
Tue 10/2712:25 pm
MBJ
- ONT
2 stops35h 15m
United Airlines
Deal found 7/27![United Airlines logo]()
$557
This Delta deal was found by Cheapflights users on 7/28. 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.
Mon 8/1710:00 pm
ONT
- PUJ
1 stop10h 43m
Delta
Thu 8/202:50 pm
PUJ
- ONT
1 stop10h 02m
Delta
Deal found 7/28![Delta logo]()
$850
This United Airlines deal was found by Cheapflights users on 7/25. 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 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
Wed 9/302:55 pm
SJU
- ONT
1 stop10h 04m
United Airlines
Deal found 7/25![United Airlines logo]()
$557
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:10 pm
ONT
- NAS
2 stops16h 46m
American Airlines
Wed 10/282:23 pm
NAS
- ONT
1 stop11h 36m
American Airlines
Deal found 7/24![American Airlines logo]()
$680
This JetBlue deal was found by Cheapflights users on 7/25. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:39 pm
ONT
- PLS
1 stop11h 37m
JetBlue
Mon 9/282:25 pm
PLS
- ONT
1 stop33h 32m
JetBlue
Deal found 7/25![JetBlue logo]()
$771
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:04 pm
ONT
- AUA
2 stops20h 36m
Delta
Sun 10/43:25 pm
AUA
- ONT
1 stop9h 59m
Delta
Deal found 7/26![Delta logo]()
$866
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 1/136:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Wed 1/207:45 am
SJU
- ONT
2 stops14h 02m
United Airlines
Deal found 7/28![United Airlines logo]()
$557
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:55 am
ONT
- CUR
3 stops30h 25m
Multiple Airlines
Thu 9/2411:35 am
CUR
- ONT
3 stops35h 11m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,137
This JetBlue deal was found by Cheapflights users on 7/28. 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.
Sun 8/3011:59 pm
ONT
- NAS
1 stop13h 05m
JetBlue
Sat 9/51:30 pm
NAS
- ONT
1 stop11h 29m
JetBlue
Deal found 7/28![JetBlue logo]()
$780
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated July 29, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:15 am
ONT
- SJU
2 stops14h 00m
American Airlines
Tue 8/1812:55 am
SJU
- ONT
2 stops14h 08m
American Airlines
Deal found 7/24![American Airlines logo]()
$576
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
ONT
- MBJ
2 stops52h 17m
Frontier
Sun 8/231:32 pm
MBJ
- ONT
2 stops20h 00m
Frontier
Deal found 7/28![Frontier logo]()
$585
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/2110:00 pm
ONT
- MBJ
1 stop15h 34m
Delta
Thu 8/271:09 pm
MBJ
- ONT
1 stop10h 43m
Delta
Deal found 7/26![Delta logo]()
$433
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Fri 8/287:00 am
SJU
- ONT
2 stops14h 11m
United Airlines
Deal found 7/24![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
ONT
- MBJ
1 stop29h 30m
United Airlines
Sat 8/292:40 pm
MBJ
- ONT
2 stops23h 32m
United Airlines
Deal found 7/25![United Airlines logo]()
$579
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:40 pm
ONT
- MBJ
2 stops18h 37m
Frontier
Thu 8/271:32 pm
MBJ
- ONT
2 stops20h 00m
Frontier
Deal found 7/29![Frontier logo]()
$592
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/216:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Tue 8/257:00 am
SJU
- ONT
2 stops14h 11m
United Airlines
Deal found 7/28![United Airlines logo]()
$606
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/222:43 pm
ONT
- MBJ
2 stops18h 52m
American Airlines
Fri 8/285:08 pm
MBJ
- ONT
2 stops20h 35m
American Airlines
Deal found 7/26![American Airlines logo]()
$567
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:40 pm
ONT
- MBJ
2 stops18h 37m
Frontier
Sun 8/301:32 pm
MBJ
- ONT
2 stops20h 00m
Frontier
Deal found 7/25![Frontier logo]()
$599
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:07 pm
ONT
- SJU
2 stops19h 47m
American Airlines
Mon 8/317:03 am
SJU
- ONT
2 stops14h 12m
American Airlines
Deal found 7/27![American Airlines logo]()
$530
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/265:00 am
ONT
- SJU
2 stops15h 50m
United Airlines
Wed 9/27:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/27![United Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/2612:33 pm
ONT
- PLS
2 stops18h 59m
American Airlines
Wed 9/21:05 pm
PLS
- ONT
2 stops12h 54m
American Airlines
Deal found 7/29![American Airlines logo]()
$543
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 July 29, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/281:18 pm
ONT
- MBJ
2 stops22h 12m
United Airlines
Deal found 7/28![United Airlines logo]()
$192
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 12/3110:59 pm
ONT
- MBJ
1 stop18h 42m
Delta
Deal found 7/26![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 7/25. 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.
Mon 9/77:05 am
ONT
- MBJ
2 stops26h 28m
Delta
Deal found 7/25![Delta logo]()
$203
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 8/257:05 am
ONT
- SJU
1 stop12h 24m
Delta
Deal found 7/29![Delta logo]()
$207
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:22 pm
ONT
- AUA
2 stops22h 25m
American Airlines
Deal found 7/28![American Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:17 pm
ONT
- SJU
2 stops38h 40m
Frontier
Deal found 7/25![Frontier logo]()
$226
This American Airlines deal was found by Cheapflights users on 7/28. 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 11/117:00 am
ONT
- SJU
1 stop13h 16m
American Airlines
Deal found 7/28![American Airlines logo]()
$233
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/246:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Deal found 7/29![United Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 am
ONT
- MBJ
1 stop8h 45m
United Airlines
Deal found 7/24![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/226:15 am
ONT
- SJU
2 stops12h 40m
American Airlines
Deal found 7/29![American Airlines logo]()
$260
This JetBlue deal was found by Cheapflights users on 7/28. 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.
Tue 9/111:59 pm
ONT
- SJU
1 stop11h 15m
JetBlue
Deal found 7/28![JetBlue logo]()
$261
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:56 pm
ONT
- SJU
2 stops15h 39m
American Airlines
Deal found 7/24![American Airlines logo]()
$265
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 July 29, 2026.
Round-trip from | $404 (Delta) |
|---|---|
One-way from | $192 (United Airlines) |
Popular in | June |
Cheapest in | October |
Average price | $558 |
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 July 29, 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
Tue 9/8
6:00 am-8:38 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Fri 9/11
7:00 am-6:11 pm
2 stops14h 11m
$414
OntarioGeorge Town
ONT - GCM
ONTGCM
Ontario
Sat 10/31
4:29 pm-2:45 pm
2 stops20h 16m
George Town Owen Roberts Intl
Sun 11/15
3:45 pm-8:39 am
2 stops19h 54m
$487
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sun 8/30
7:13 pm-3:42 pm
2 stops17h 29m
San Juan Luis Munoz Marin Intl
Thu 9/3
2:20 pm-9:59 pm
1 stop10h 39m
$494
Quickest round-trip
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Thu 10/8
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Thu 10/15
2:00 pm-8:58 pm
1 stop9h 58m
$504
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 9/12
7:00 am-11:50 pm
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Tue 9/15
7:00 am-8:01 pm
2 stops16h 01m
$504
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 10/24
6:00 am-8:38 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Sat 10/31
6:40 am-8:15 pm
2 stops16h 35m
$504
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 9/8
8:35 am-10:05 pm
2 stops10h 30m
San Juan Luis Munoz Marin Intl
Fri 9/11
6:30 am-3:30 pm
2 stops12h 00m
$514
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 1/23
6:00 am-9:26 pm
1 stop11h 26m
San Juan Luis Munoz Marin Intl
Sat 1/30
7:45 am-5:47 pm
2 stops14h 02m
$547
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 10/24
5:00 am-3:45 pm
1 stop8h 45m
Montego Bay Sangster Intl
Tue 10/27
12:25 pm-9:40 pm
2 stops35h 15m
$557
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 9/26
5:00 am-8:38 pm
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Wed 9/30
2:55 pm-9:59 pm
1 stop10h 04m
$557
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-MBJ
ONT-SJU
ONT-AUA
ONT-GCM
ONT-SXM
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-MBJ
ONT-SJU
ONT-AUA
ONT-GCM
What is the cheapest month to book a flight from Ontario to Caribbean?
Currently, February is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $504). Flying from Ontario to Caribbean in December is currently the most expensive (average of $736). 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.
How far ahead should I book a flight from Ontario to Caribbean?
Booking 63 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.
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 July 29, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican 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.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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 July 29, 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 July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$530 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$176 | Average$513 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$318 | Average$645 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$663 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$419 | Average$651 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$421 | Average$663 | FlexibilityNo cancel fee | On-time62% |