$168+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Mar 20 — Mar 271
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 February 18, 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 February 18, 2026.
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/142:08 pm
ONT
- SJU
2 stops16h 05m
American Airlines
Wed 5/1311:59 pm
SJU
- ONT
1 stop13h 10m
American Airlines
Deal found 2/16![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/151:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 2/14![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/81:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 2/15![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/2510:15 pm
ONT
- SJU
1 stop10h 30m
Delta
Tue 5/57:30 am
SJU
- ONT
1 stop14h 03m
Delta
Deal found 2/16![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 2/16![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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
- MBJ
2 stops19h 16m
American Airlines
Sun 5/32:29 pm
MBJ
- ONT
2 stops21h 40m
American Airlines
Deal found 2/17![American Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/129:55 pm
ONT
- SJU
1 stop11h 15m
Southwest
Wed 5/135:05 am
SJU
- ONT
1 stop14h 15m
Southwest
Deal found 2/16![Southwest logo]()
$363
This American Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” 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 9/710:29 pm
ONT
- MBJ
1 stop8h 56m
American Airlines
Mon 9/144:50 pm
MBJ
- ONT
2 stops20h 29m
American Airlines
Deal found 2/18![American Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Sat 5/167:40 am
SJU
- ONT
1 stop13h 21m
United Airlines
Deal found 2/14![United Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:10 am
ONT
- MBJ
1 stop8h 35m
United Airlines
Sat 5/22:40 pm
MBJ
- ONT
1 stop9h 18m
United Airlines
Deal found 2/18![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 4/1110:25 pm
ONT
- SJU
1 stop10h 21m
Delta
Tue 4/2112:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 2/15![Delta logo]()
$372
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
ONT
- SJU
1 stop10h 34m
United Airlines
Tue 5/121:00 am
SJU
- ONT
2 stops14h 38m
United Airlines
Deal found 2/17![United Airlines logo]()
$373
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 February 18, 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 February 18, 2026.
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/151:40 pm
SJU
- ONT
1 stop9h 56m
United Airlines
Deal found 2/14![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/2510:15 pm
ONT
- SJU
1 stop10h 30m
Delta
Tue 5/57:30 am
SJU
- ONT
1 stop14h 03m
Delta
Deal found 2/16![Delta logo]()
$336
This Southwest deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 5/19:20 am
ONT
- SJU
2 stops11h 35m
Southwest
Wed 5/65:35 am
SJU
- ONT
2 stops13h 45m
Southwest
Deal found 2/16![Southwest logo]()
$423
This Frontier deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” 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 5/27:18 pm
ONT
- PUJ
2 stops14h 52m
Frontier
Thu 5/711:47 am
PUJ
- ONT
2 stops22h 44m
Frontier
Deal found 2/14![Frontier logo]()
$467
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 4/1311:29 pm
ONT
- SXM
1 stop10h 52m
American Airlines
Mon 4/2012:41 pm
SXM
- ONT
2 stops24h 28m
American Airlines
Deal found 2/15![American Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Fri 5/81:00 am
SJU
- ONT
2 stops14h 22m
United Airlines
Deal found 2/15![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/57:05 am
ONT
- SJU
1 stop13h 08m
Delta
Sat 5/97:30 am
SJU
- ONT
1 stop14h 06m
Delta
Deal found 2/15![Delta logo]()
$336
This Avianca deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 5/511:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Tue 5/1211:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 2/16![Avianca logo]()
$705
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Sat 5/167:40 am
SJU
- ONT
1 stop13h 21m
United Airlines
Deal found 2/14![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 4/1110:25 pm
ONT
- SJU
1 stop10h 21m
Delta
Tue 4/2112:55 pm
SJU
- ONT
1 stop11h 05m
Delta
Deal found 2/15![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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
- SJU
1 stop11h 30m
Southwest
Wed 6/105:00 am
SJU
- ONT
1 stop10h 05m
Southwest
Deal found 2/17![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
ONT
- SJU
2 stops13h 50m
United Airlines
Wed 5/137:20 am
SJU
- ONT
2 stops18h 10m
United Airlines
Deal found 2/16![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/263:50 pm
ONT
- SJU
2 stops14h 20m
Southwest
Sun 5/35:00 am
SJU
- ONT
1 stop13h 10m
Southwest
Deal found 2/16![Southwest logo]()
$429
This Expedia deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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.
Wed 5/206:00 am
ONT
- CUR
2 stops29h 50m
Multiple Airlines
Sun 5/243:15 pm
CUR
- ONT
1 stop33h 54m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$989
This Delta deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:05 am
ONT
- SJU
1 stop12h 12m
Delta
Sat 5/167:30 am
SJU
- ONT
1 stop14h 06m
Delta
Deal found 2/17![Delta logo]()
$421
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/2410:36 pm
ONT
- SXM
1 stop11h 40m
American Airlines
Wed 4/12:17 pm
SXM
- ONT
2 stops22h 49m
American Airlines
Deal found 2/15![American Airlines logo]()
$511
This Expedia deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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.
Wed 5/2011:25 pm
ONT
- CUR
1 stop11h 19m
JetBlue
Sun 5/243:15 pm
CUR
- ONT
1 stop33h 54m
JetBlue
Deal found 2/17![JetBlue logo]()
$1,050
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 4/115:10 am
ONT
- NAS
1 stop8h 00m
United Airlines
Wed 4/153:59 pm
NAS
- ONT
1 stop9h 27m
United Airlines
Deal found 2/16![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:19 pm
ONT
- SXM
2 stops20h 19m
American Airlines
Wed 5/62:21 pm
SXM
- ONT
2 stops22h 48m
American Airlines
Deal found 2/14![American Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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
- GCM
1 stop11h 45m
Delta
Thu 5/71:19 pm
GCM
- ONT
1 stop10h 35m
Delta
Deal found 2/15![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 5/301:18 pm
ONT
- NAS
2 stops19h 10m
United Airlines
Sat 6/64:58 pm
NAS
- ONT
1 stop7h 57m
United Airlines
Deal found 2/16![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 4/2611:55 pm
ONT
- PUJ
2 stops12h 05m
Southwest
Thu 4/302:05 pm
PUJ
- ONT
2 stops21h 40m
Southwest
Deal found 2/15![Southwest logo]()
$493
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/1410:36 pm
ONT
- SXM
1 stop11h 40m
American Airlines
Tue 3/174:28 pm
SXM
- ONT
2 stops24h 20m
American Airlines
Deal found 2/15![American Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/510:15 pm
ONT
- GCM
1 stop11h 45m
Delta
Thu 5/71:19 pm
GCM
- ONT
1 stop10h 35m
Delta
Deal found 2/15![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:49 pm
ONT
- NAS
2 stops15h 58m
United Airlines
Mon 4/272:53 pm
NAS
- ONT
1 stop9h 57m
United Airlines
Deal found 2/16![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/2411:58 pm
ONT
- PUJ
2 stops12h 38m
American Airlines
Wed 4/14:01 pm
PUJ
- ONT
2 stops21h 05m
American Airlines
Deal found 2/16![American Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/41:29 pm
ONT
- GCM
2 stops20h 31m
Delta
Tue 5/121:19 pm
GCM
- ONT
1 stop10h 35m
Delta
Deal found 2/15![Delta logo]()
$432
This Avianca deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 4/1411:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Tue 4/2111:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 2/15![Avianca logo]()
$705
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 6/245:45 am
ONT
- NAS
1 stop7h 11m
United Airlines
Tue 6/303:59 pm
NAS
- ONT
1 stop9h 29m
United Airlines
Deal found 2/16![United Airlines logo]()
$434
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/147:59 pm
ONT
- SXM
2 stops16h 01m
American Airlines
Wed 3/1812:29 pm
SXM
- ONT
2 stops24h 37m
American Airlines
Deal found 2/15![American Airlines logo]()
$534
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated February 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated February 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:21 am
ONT
- SJU
2 stops26h 01m
Multiple Airlines
Wed 2/257:44 pm
SJU
- ONT
1 stop22h 45m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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 2/255:00 am
ONT
- SJU
2 stops12h 26m
United Airlines
Sat 2/287:40 am
SJU
- ONT
2 stops14h 01m
United Airlines
Deal found 2/17![United Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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 2/2711:58 pm
ONT
- SJU
2 stops14h 13m
American Airlines
Wed 3/47:00 am
SJU
- ONT
2 stops15h 42m
American Airlines
Deal found 2/17![American Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:21 am
ONT
- SJU
1 stop23h 16m
Multiple Airlines
Wed 3/44:06 pm
SJU
- ONT
2 stops30h 21m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/16:00 am
ONT
- SJU
1 stop11h 26m
United Airlines
Wed 3/43:46 pm
SJU
- ONT
1 stop10h 13m
United Airlines
Deal found 2/15![United Airlines logo]()
$500
This Southwest deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/28:30 am
ONT
- SJU
2 stops12h 10m
Southwest
Thu 3/56:00 am
SJU
- ONT
1 stop12h 05m
Southwest
Deal found 2/16![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/210:20 pm
ONT
- SJU
1 stop10h 41m
Delta
Tue 3/101:00 pm
SJU
- ONT
1 stop11h 00m
Delta
Deal found 2/16![Delta logo]()
$440
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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 3/75:15 am
ONT
- MBJ
1 stop8h 35m
United Airlines
Thu 3/121:48 pm
MBJ
- ONT
1 stop10h 30m
United Airlines
Deal found 2/17![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/101:50 pm
ONT
- MBJ
2 stops20h 56m
United Airlines
Tue 3/172:20 pm
MBJ
- ONT
2 stops23h 58m
United Airlines
Deal found 2/15![United Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/1711:59 pm
ONT
- MBJ
1 stop10h 47m
United Airlines
Tue 3/241:48 pm
MBJ
- ONT
1 stop10h 30m
United Airlines
Deal found 2/15![United Airlines logo]()
$462
This Faresmojo deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1910:25 pm
ONT
- SJU
1 stop12h 02m
JetBlue
Sun 3/221:00 pm
SJU
- ONT
1 stop11h 00m
JetBlue
Deal found 2/17![JetBlue logo]()
$486
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/245:02 pm
ONT
- SXM
2 stops15h 27m
American Airlines
Wed 4/12:17 pm
SXM
- ONT
2 stops22h 49m
American Airlines
Deal found 2/15![American Airlines logo]()
$388
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 February 18, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 3/2410:25 pm
ONT
- SJU
1 stop10h 21m
Delta
Deal found 2/15![Delta logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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 4/15:18 pm
ONT
- SJU
2 stops28h 59m
Frontier
Deal found 2/17![Frontier logo]()
$176
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:05 am
ONT
- SJU
1 stop11h 33m
United Airlines
Deal found 2/17![United Airlines logo]()
$192
This American Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” 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 3/2912:22 pm
ONT
- SJU
2 stops23h 28m
American Airlines
Deal found 2/17![American Airlines logo]()
$194
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/259:55 pm
ONT
- SJU
1 stop12h 15m
Southwest
Deal found 2/15![Southwest logo]()
$195
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/296:30 pm
ONT
- SXM
2 stops15h 03m
United Airlines
Deal found 2/15![United Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:10 am
ONT
- SJU
3 stops35h 51m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$202
This Priceline deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 5/2911:25 pm
ONT
- SXM
1 stop11h 03m
JetBlue
Deal found 2/15![JetBlue logo]()
$205
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:00 am
ONT
- SXM
2 stops28h 33m
United Airlines
Deal found 2/14![United Airlines logo]()
$208
This Frontier deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” 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 8/84:15 pm
ONT
- SJU
1 stop10h 38m
Frontier
Deal found 2/15![Frontier logo]()
$210
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:49 pm
ONT
- NAS
2 stops15h 58m
United Airlines
Deal found 2/17![United Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:49 pm
ONT
- SJU
3 stops23h 09m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$219
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 February 18, 2026.
Round-trip from | $294 (American Airlines) |
|---|---|
One-way from | $168 (Delta) |
Popular in | December |
Cheapest in | October |
Average price | $436 |
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 February 18, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean that are best for you.
Fly from
Ontario
Fly to
Caribbean
Route
Depart
Return
Price
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/11
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Fri 5/15
1:40 pm-8:36 pm
1 stop9h 56m
$319
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/5
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Fri 5/8
1:00 am-12:22 pm
2 stops14h 22m
$334
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 4/25
10:15 pm-11:45 am
1 stop10h 30m
San Juan Luis Munoz Marin Intl
Tue 5/5
7:30 am-6:33 pm
1 stop14h 03m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/5
7:05 am-11:13 pm
1 stop13h 08m
San Juan Luis Munoz Marin Intl
Sat 5/9
7:30 am-6:36 pm
1 stop14h 06m
$336
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Mon 5/11
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Sat 5/16
7:40 am-6:01 pm
1 stop13h 21m
$371
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 4/11
10:25 pm-11:46 am
1 stop10h 21m
San Juan Luis Munoz Marin Intl
Tue 4/21
12:55 pm-9:00 pm
1 stop11h 05m
$372
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Tue 5/12
7:00 am-11:50 pm
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Wed 5/13
7:20 am-10:30 pm
2 stops18h 10m
$379
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Sat 4/11
5:10 am-4:10 pm
1 stop8h 00m
Nassau Intl
Wed 4/15
3:59 pm-10:26 pm
1 stop9h 27m
$404
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Sat 5/30
1:18 pm-11:28 am
2 stops19h 10m
Nassau Intl
Sat 6/6
4:58 pm-9:55 pm
1 stop7h 57m
$404
OntarioNassau
ONT - NAS
ONTNAS
Ontario
Thu 4/23
6:49 pm-1:47 pm
2 stops15h 58m
Nassau Intl
Mon 4/27
2:53 pm-9:50 pm
1 stop9h 57m
$404
Showing 1-10 of 60 results
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-SXM
ONT-SJU
ONT-MBJ
ONT-NAS
ONT-PUJ
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-SXM
ONT-SJU
ONT-MBJ
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 $137). 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 February 18, 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.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Caribbean. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario to Caribbean
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Caribbean by cabin class
Find flights from Ontario to Caribbean, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Caribbean flights
Browse other Ontario and Caribbean flight options. Last updated on February 18, 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 February 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$493 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$611 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$645 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$365 | Average$680 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$421 | Average$690 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$480 | Average$711 | FlexibilityNo cancel fee | On-time63% |