$123 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 2/20. 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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Everything you should know

Cheapest round-trip
$293
Overall average: $471
Multiple Airlines
Fri 2/13Mon 2/23
SJU - ONT • 1 stop
Cheapest one-way
$123
Typical prices: $218-$433
Multiple Airlines
Fri 2/20
SJU - ONT • 1 stop
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Flight Deals
Useful Info
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

Fri, Feb 13 - Mon, Feb 23
Multiple Airlines Logo
7:44 pm - 7:26 am
SJU
-
ONT
15h 42m
1 stop
Multiple Airlines Logo
2:06 pm - 6:58 pm
ONT
-
SJU
24h 52m
2 stops
$293Multiple Airlines
Fri, Feb 13 - Mon, Feb 23
Multiple Airlines Logo
7:44 pm - 7:26 am
SJU
-
ONT
15h 42m
1 stop
Multiple Airlines Logo
2:06 pm - 11:37 am
ONT
-
SJU
17h 31m
1 stop
$300Multiple Airlines
Thu, Feb 12 - Mon, Feb 23
Multiple Airlines Logo
4:25 pm - 11:59 pm
SJU
-
ONT
35h 34m
2 stops
Multiple Airlines Logo
2:06 pm - 11:37 am
ONT
-
SJU
17h 31m
1 stop
$305Multiple Airlines
Thu, Feb 12 - Mon, Feb 23
American Airlines Logo
7:33 am - 11:59 pm
SJU
-
ONT
20h 26m
1 stop
American Airlines Logo
11:59 pm - 4:52 pm
ONT
-
SJU
12h 53m
1 stop
$310American Airlines
Thu, Feb 12 - Sun, Feb 22
Frontier Logo
7:04 pm - 11:59 pm
SJU
-
ONT
32h 55m
2 stops
Frontier Logo
6:10 am - 2:53 am
ONT
-
SJU
40h 43m
2 stops
$322Frontier
Wed, Feb 11 - Tue, Feb 24
Multiple Airlines Logo
7:44 pm - 2:29 pm
SJU
-
ONT
22h 45m
1 stop
Multiple Airlines Logo
8:35 am - 12:43 am
ONT
-
SJU
36h 08m
2 stops
$350Multiple Airlines
Wed, Feb 11 - Tue, Feb 24
Southwest Logo
10:20 am - 7:35 pm
SJU
-
ONT
13h 15m
2 stops
Southwest Logo
10:20 am - 12:35 am
ONT
-
SJU
10h 15m
2 stops
$356Southwest
Wed, Apr 29 - Mon, May 4
United Airlines Logo
7:00 am - 10:45 pm
SJU
-
ONT
18h 45m
2 stops
United Airlines Logo
6:05 am - 8:38 pm
ONT
-
SJU
11h 33m
1 stop
$394United Airlines
Sat, Jul 11 - Sat, Jul 25
United Airlines Logo
12:52 pm - 8:17 pm
MBJ
-
ONT
9h 25m
1 stop
United Airlines Logo
5:00 am - 3:45 pm
ONT
-
MBJ
8h 45m
1 stop
$399United Airlines
Tue, Feb 24 - Tue, Mar 10
American Airlines Logo
3:53 pm - 10:49 pm
MBJ
-
ONT
9h 56m
1 stop
American Airlines Logo
10:36 pm - 1:26 pm
ONT
-
MBJ
12h 50m
1 stop
$404American Airlines
Useful Info

Good to know

Low seasonMarch
Cheapest flight$123
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 4% 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 airlines flying 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.
7.4
United AirlinesOverall score based on 9164 reviews
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

6.0 GoodMichael, Jan 2026
PDX - SFO
Read more United Airlines reviews

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario