$157+ Cheap flights from Ontario (ONT) to Caribbean
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Apr 5 — Apr 121
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Caribbean
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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 March 6, 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 March 6, 2026.
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
Tue 8/114:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Wed 8/196:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/3![Frontier logo]()
$276
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Sun 6/76:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/6![Frontier logo]()
$300
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
Tue 8/114:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Tue 8/186:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/3![Frontier logo]()
$316
This Frontier deal was found by Cheapflights users on 3/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Mon 6/296:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/6![Frontier logo]()
$335
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/257:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Sat 5/27:40 am
SJU
- ONT
1 stop13h 21m
United Airlines
Deal found 3/6![United Airlines logo]()
$349
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
Tue 8/114:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Sun 8/166:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/3![Frontier logo]()
$351
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stop12h 21m
American Airlines
Fri 8/281:10 pm
MBJ
- ONT
1 stop12h 58m
American Airlines
Deal found 3/2![American Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Thu 4/237:17 pm
SJU
- ONT
2 stops55h 38m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$353
This Frontier deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Thu 7/236:15 am
SJU
- ONT
1 stop12h 10m
Frontier
Deal found 3/2![Frontier logo]()
$356
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:30 pm
ONT
- MBJ
2 stops18h 40m
United Airlines
Mon 6/14:12 pm
MBJ
- ONT
2 stops22h 00m
United Airlines
Deal found 3/2![United Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 4/177:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Sat 4/257:40 am
SJU
- ONT
2 stops15h 56m
United Airlines
Deal found 3/6![United Airlines logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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
Fri 5/11:59 am
SJU
- ONT
2 stops32h 27m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$374
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 March 6, 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 March 6, 2026.
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/243:19 pm
ONT
- SXM
2 stops17h 10m
American Airlines
Wed 4/12:17 pm
SXM
- ONT
2 stops22h 49m
American Airlines
Deal found 3/2![American Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:05 am
ONT
- MBJ
2 stops26h 21m
Delta
Thu 5/281:18 pm
MBJ
- ONT
1 stop10h 30m
Delta
Deal found 3/2![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:55 pm
ONT
- SJU
1 stop9h 30m
Southwest
Fri 5/155:35 am
SJU
- ONT
1 stop12h 40m
Southwest
Deal found 3/2![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:45 pm
ONT
- NAS
2 stops14h 10m
United Airlines
Fri 4/242:53 pm
NAS
- ONT
1 stop9h 57m
United Airlines
Deal found 3/2![United Airlines logo]()
$444
This KAYAK deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
Wed 7/2911:59 pm
ONT
- PLS
1 stop10h 11m
JetBlue
Wed 8/52:30 pm
PLS
- ONT
1 stop11h 10m
JetBlue
Deal found 3/4![JetBlue logo]()
$687
This Delta deal was found by Cheapflights users on 3/6. 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.
Mon 5/410:15 pm
ONT
- MBJ
1 stop15h 02m
Delta
Thu 5/71:18 pm
MBJ
- ONT
1 stop10h 30m
Delta
Deal found 3/6![Delta logo]()
$422
This Avianca deal was found by Cheapflights users on 3/6. 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.
Tue 8/1811:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Tue 8/2511:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 3/6![Avianca logo]()
$862
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:18 pm
ONT
- MBJ
2 stops20h 25m
United Airlines
Sat 5/3012:52 pm
MBJ
- ONT
1 stop9h 50m
United Airlines
Deal found 3/2![United Airlines logo]()
$467
This Mytrip deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:13 pm
ONT
- CUR
2 stops16h 47m
Multiple Airlines
Fri 7/36:15 pm
CUR
- ONT
3 stops31h 50m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,023
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Sat 5/22:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 3/2![United Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/2710:25 pm
ONT
- SJU
1 stop10h 22m
Delta
Tue 4/71:00 pm
SJU
- ONT
1 stop11h 00m
Delta
Deal found 3/4![Delta logo]()
$495
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:05 pm
ONT
- SJU
1 stop8h 40m
Southwest
Mon 6/2210:20 am
SJU
- ONT
1 stop15h 05m
Southwest
Deal found 3/4![Southwest logo]()
$556
This American Airlines deal was found by Cheapflights users on 3/6. 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.
Thu 5/2110:10 pm
ONT
- NAS
1 stop8h 53m
American Airlines
Mon 5/256:05 pm
NAS
- ONT
1 stop18h 26m
American Airlines
Deal found 3/6![American Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:43 pm
ONT
- MBJ
1 stop24h 02m
United Airlines
Fri 4/241:52 pm
MBJ
- ONT
1 stop10h 39m
United Airlines
Deal found 3/2![United Airlines logo]()
$490
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/2610:25 pm
ONT
- SJU
1 stop12h 02m
Delta
Wed 4/81:00 pm
SJU
- ONT
1 stop11h 00m
Delta
Deal found 3/4![Delta logo]()
$495
This Southwest deal was found by Cheapflights users on 3/6. 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.
Wed 7/299:40 pm
ONT
- PUJ
1 stop13h 50m
Southwest
Sun 8/23:25 pm
PUJ
- ONT
2 stops20h 40m
Southwest
Deal found 3/6![Southwest logo]()
$598
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:18 pm
ONT
- SJU
2 stops13h 11m
United Airlines
Tue 7/142:55 pm
SJU
- ONT
1 stop10h 00m
United Airlines
Deal found 3/2![United Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:26 pm
ONT
- SXM
1 stop11h 55m
American Airlines
Wed 5/62:21 pm
SXM
- ONT
2 stops21h 18m
American Airlines
Deal found 3/2![American Airlines logo]()
$626
This Southwest deal was found by Cheapflights users on 3/6. 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.
Thu 7/309:40 pm
ONT
- PUJ
1 stop13h 50m
Southwest
Sun 8/23:25 pm
PUJ
- ONT
2 stops20h 40m
Southwest
Deal found 3/6![Southwest logo]()
$637
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 4/125:10 am
ONT
- MBJ
2 stops29h 40m
United Airlines
Wed 4/154:12 pm
MBJ
- ONT
2 stops31h 38m
United Airlines
Deal found 3/6![United Airlines logo]()
$529
This JetBlue deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
Wed 6/1711:59 pm
ONT
- PLS
1 stop10h 11m
JetBlue
Tue 6/232:30 pm
PLS
- ONT
1 stop11h 10m
JetBlue
Deal found 3/4![JetBlue logo]()
$801
This American Airlines deal was found by Cheapflights users on 3/6. 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 3/227:59 pm
ONT
- STT
2 stops12h 13m
American Airlines
Thu 3/265:25 pm
STT
- ONT
2 stops19h 41m
American Airlines
Deal found 3/6![American Airlines logo]()
$700
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:55 pm
ONT
- PUJ
2 stops11h 35m
Southwest
Mon 7/132:40 pm
PUJ
- ONT
2 stops12h 25m
Southwest
Deal found 3/2![Southwest logo]()
$637
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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 6/75:00 am
ONT
- MBJ
2 stops30h 30m
United Airlines
Fri 6/124:12 pm
MBJ
- ONT
2 stops31h 43m
United Airlines
Deal found 3/3![United Airlines logo]()
$548
This Delta deal was found by Cheapflights users on 3/6. 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.
Sun 3/2210:25 pm
ONT
- STT
1 stop10h 13m
Delta
Thu 3/2612:49 pm
STT
- ONT
1 stop11h 11m
Delta
Deal found 3/6![Delta logo]()
$700
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/319:55 pm
ONT
- STT
2 stops12h 40m
Southwest
Fri 6/52:45 pm
STT
- ONT
2 stops12h 20m
Southwest
Deal found 3/2![Southwest logo]()
$656
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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 3/2411:59 pm
ONT
- NAS
1 stop12h 23m
United Airlines
Tue 4/72:53 pm
NAS
- ONT
1 stop9h 57m
United Airlines
Deal found 3/3![United Airlines logo]()
$554
This JetBlue deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 8/2511:59 pm
ONT
- PLS
1 stop10h 11m
JetBlue
Tue 9/12:30 pm
PLS
- ONT
1 stop11h 10m
JetBlue
Deal found 3/5![JetBlue logo]()
$894
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/252:08 pm
ONT
- STT
2 stops18h 27m
American Airlines
Sun 5/31:15 pm
STT
- ONT
1 stop10h 52m
American Airlines
Deal found 3/6![American Airlines logo]()
$779
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:35 pm
ONT
- STT
2 stops19h 31m
Delta
Fri 6/53:01 pm
STT
- ONT
1 stop9h 47m
Delta
Deal found 3/2![Delta logo]()
$720
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated March 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated March 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/243:19 pm
ONT
- SXM
2 stops17h 10m
American Airlines
Wed 4/12:17 pm
SXM
- ONT
2 stops22h 49m
American Airlines
Deal found 3/2![American Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:55 pm
ONT
- SJU
2 stops9h 40m
Southwest
Thu 4/95:35 am
SJU
- ONT
1 stop12h 40m
Southwest
Deal found 3/4![Southwest logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/85:18 pm
ONT
- SJU
1 stop14h 49m
Multiple Airlines
Wed 4/156:30 am
SJU
- ONT
2 stops28h 01m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$425
This American Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/127:35 pm
ONT
- SJU
2 stops12h 13m
American Airlines
Tue 4/285:45 am
SJU
- ONT
2 stops15h 39m
American Airlines
Deal found 3/4![American Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:15 am
ONT
- SJU
1 stop11h 55m
Multiple Airlines
Thu 4/237:17 pm
SJU
- ONT
2 stops55h 38m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 4/177:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Sat 4/257:40 am
SJU
- ONT
2 stops15h 56m
United Airlines
Deal found 3/6![United Airlines logo]()
$373
This Frontier deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:44 pm
ONT
- PUJ
2 stops14h 26m
Frontier
Sat 4/2512:02 pm
PUJ
- ONT
2 stops22h 24m
Frontier
Deal found 3/4![Frontier logo]()
$422
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:59 pm
ONT
- PUJ
2 stops13h 11m
Frontier
Thu 4/2312:02 pm
PUJ
- ONT
2 stops22h 29m
Frontier
Deal found 3/3![Frontier logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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
Fri 5/11:59 am
SJU
- ONT
2 stops32h 27m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/257:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Sat 5/27:40 am
SJU
- ONT
1 stop13h 21m
United Airlines
Deal found 3/6![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/2512:19 pm
ONT
- SJU
2 stops13h 13m
American Airlines
Sat 5/27:25 am
SJU
- ONT
2 stops15h 09m
American Airlines
Deal found 3/6![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/287:05 am
ONT
- SJU
1 stop10h 19m
Delta
Tue 5/512:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 3/4![Delta logo]()
$400
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 March 6, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated March 6, 2026.
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/187:00 am
ONT
- SJU
2 stops13h 50m
United Airlines
Deal found 3/6![United Airlines logo]()
$157
This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:15 am
ONT
- SJU
2 stops16h 48m
Frontier
Deal found 3/6![Frontier logo]()
$158
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:02 pm
ONT
- MBJ
2 stops16h 22m
American Airlines
Deal found 3/2![American Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 5/11:30 pm
ONT
- SXM
2 stops20h 03m
United Airlines
Deal found 3/6![United Airlines logo]()
$167
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:00 am
ONT
- MBJ
2 stops24h 07m
American Airlines
Deal found 3/2![American Airlines logo]()
$168
This American Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/1211:59 pm
ONT
- NAS
1 stop11h 45m
American Airlines
Deal found 3/5![American Airlines logo]()
$168
This Trip.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:30 pm
ONT
- SJU
2 stops31h 33m
Frontier
Deal found 3/2![Frontier logo]()
$173
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:53 am
ONT
- MBJ
2 stops21h 14m
American Airlines
Deal found 3/2![American Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:59 am
ONT
- SJU
2 stops29h 55m
Frontier
Deal found 3/2![Frontier logo]()
$175
This Super.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Deal found 3/3![Frontier logo]()
$176
This Delta deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/1810:15 pm
ONT
- SJU
1 stop10h 30m
Delta
Deal found 3/5![Delta logo]()
$178
This Delta deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/1910:15 pm
ONT
- MBJ
1 stop15h 02m
Delta
Deal found 3/5![Delta logo]()
$182
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 March 6, 2026.
Round-trip from | $276 (Frontier) |
|---|---|
One-way from | $158 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $590 |
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 March 6, 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
OntarioSimpson Bay
ONT - SXM
ONTSXM
Ontario
Tue 3/24
3:19 pm-11:29 am
2 stops17h 10m
Simpson Bay Princess Juliana
Wed 4/1
2:17 pm-10:06 am
2 stops22h 49m
$408
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sun 5/24
7:05 am-11:26 am
2 stops26h 21m
Montego Bay Sangster Intl
Thu 5/28
1:18 pm-9:48 pm
1 stop10h 30m
$417
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Mon 5/4
10:15 pm-3:17 pm
1 stop15h 02m
Montego Bay Sangster Intl
Thu 5/7
1:18 pm-9:48 pm
1 stop10h 30m
$422
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Fri 5/8
9:55 pm-10:25 am
1 stop9h 30m
San Juan Luis Munoz Marin Intl
Fri 5/15
5:35 am-3:15 pm
1 stop12h 40m
$432
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Fri 4/17
6:45 pm-11:55 am
2 stops14h 10m
Nassau Intl
Fri 4/24
2:53 pm-9:50 pm
1 stop9h 57m
$444
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 5/23
1:18 pm-11:43 am
2 stops20h 25m
Montego Bay Sangster Intl
Sat 5/30
12:52 pm-8:42 pm
1 stop9h 50m
$467
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 4/25
5:10 am-12:50 pm
2 stops29h 40m
Montego Bay Sangster Intl
Sat 5/2
2:40 pm-9:58 pm
1 stop9h 18m
$487
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Fri 4/17
1:43 pm-3:45 pm
1 stop24h 02m
Montego Bay Sangster Intl
Fri 4/24
1:52 pm-10:31 pm
1 stop10h 39m
$490
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Fri 3/27
10:25 pm-11:47 am
1 stop10h 22m
San Juan Luis Munoz Marin Intl
Tue 4/7
1:00 pm-9:00 pm
1 stop11h 00m
$495
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Thu 3/26
10:25 pm-1:27 pm
1 stop12h 02m
San Juan Luis Munoz Marin Intl
Wed 4/8
1:00 pm-9:00 pm
1 stop11h 00m
$495
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Caribbean
Have a flexible travel schedule? Discover the best time to fly to Caribbean from Ontario with our price prediction graph.
ONT-SJU
ONT-MBJ
ONT-SXM
ONT-NAS
ONT-PLS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Caribbean
ONT-0CB
ONT-SJU
ONT-MBJ
ONT-SXM
ONT-NAS
What is the cheapest month to book a flight from Ontario to Caribbean?
Currently, April is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $159). Flying from Ontario to Caribbean in November is currently the most expensive (average of $286). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Caribbean
Get insights into the airlines that provide service to Caribbean. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean. Reviews last updated March 6, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United 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.
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
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 March 6, 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 March 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$467 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$292 | Average$677 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$645 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$365 | Average$672 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$579 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$445 | Average$660 | FlexibilityNo cancel fee | On-time63% |