$111 Find Cheap Flights from Caribbean to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Caribbean to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Caribbean to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Caribbean to Ontario

Thu, Sep 24 - Mon, Sep 28
United Airlines Logo
2:00 pm - 8:52 pm
SJU
-
ONT
9h 52m
1 stop
United Airlines Logo
5:00 am - 5:38 pm
ONT
-
SJU
9h 38m
1 stop
$374United Airlines
Tue, May 12 - Tue, May 26
Frontier Logo
1:16 pm - 10:05 am
MBJ
-
ONT
22h 49m
2 stops
Frontier Logo
8:06 pm - 12:11 pm
ONT
-
MBJ
14h 05m
2 stops
$430Frontier
Sat, May 23 - Sat, May 30
Multiple Airlines Logo
2:37 pm - 7:11 pm
SJU
-
ONT
31h 34m
1 stop
Multiple Airlines Logo
10:50 am - 4:49 am
ONT
-
SJU
14h 59m
2 stops
$439Multiple Airlines
Thu, May 21 - Mon, May 25
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
9:55 pm - 1:10 pm
ONT
-
SJU
12h 15m
1 stop
$448Southwest
Fri, May 22 - Thu, Aug 20
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
6:20 am - 8:05 pm
ONT
-
SJU
10h 45m
2 stops
$453Southwest
Fri, May 15 - Tue, May 19
American Airlines Logo
11:38 am - 9:59 pm
SJU
-
ONT
13h 21m
2 stops
American Airlines Logo
9:24 am - 11:03 pm
ONT
-
SJU
10h 39m
2 stops
$454American Airlines
Fri, May 22 - Tue, Jun 2
Multiple Airlines Logo
2:37 pm - 5:04 pm
SJU
-
ONT
29h 27m
1 stop
Multiple Airlines Logo
8:30 am - 4:01 am
ONT
-
SJU
16h 31m
2 stops
$484Multiple Airlines
Fri, Jun 5 - Fri, Jun 12
American Airlines Logo
5:17 pm - 11:51 am
MBJ
-
ONT
20h 34m
2 stops
American Airlines Logo
5:44 am - 4:17 pm
ONT
-
MBJ
8h 33m
1 stop
$568American Airlines
Thu, May 14 - Wed, May 27
JetBlue Logo
5:10 am - 10:10 pm
KIN
-
ONT
19h 00m
1 stop
JetBlue Logo
10:41 pm - 6:50 pm
ONT
-
KIN
18h 09m
1 stop
$881JetBlue
Fri, Jul 3 - Sat, Jul 11
JetBlue Logo
2:20 am - 10:01 pm
KIN
-
ONT
21h 41m
1 stop
JetBlue Logo
11:24 pm - 8:14 pm
ONT
-
KIN
18h 50m
1 stop
$895JetBlue
Useful Info

Good to know

Low seasonMarch
Cheapest flight$111
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from San Juan to Ontario

FAQs for booking flights from Caribbean to Ontario

  • How does KAYAK find such low prices on flights from Caribbean to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Caribbean to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Caribbean to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Caribbean is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Caribbean to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Caribbean with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Caribbean to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Caribbean up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Caribbean to Ontario

 
Need help choosing which airline to fly with from Caribbean to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4333 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
Airline reviews

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

8.0 ExcellentCheryl, Apr 2026
DEN - SBA
Read more Southwest reviews

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Dinner was good, but the breakfast served in the morning was horrible.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Flight was on time. Cabin attendants made no recognition of my name or being an Advantage Executive Platinum member.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario