$187 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 3/25. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$336
Overall average: $590
Delta
Wed 4/29Mon 5/11
SJU - ONT • 1 stop
Cheapest one-way
$187
Typical prices: $337-$343
American Airlines
Wed 3/25
SJU - ONT • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
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

Wed, Apr 29 - Mon, May 11
Delta Logo
1:00 pm - 9:00 pm
SJU
-
ONT
11h 00m
1 stop
Delta Logo
10:59 pm - 1:18 pm
ONT
-
SJU
11h 19m
1 stop
$336Delta
Wed, Apr 29 - Sun, May 10
Delta Logo
1:00 pm - 9:00 pm
SJU
-
ONT
11h 00m
1 stop
Delta Logo
7:00 am - 10:54 pm
ONT
-
SJU
12h 54m
1 stop
$367Delta
Thu, Feb 26 - Wed, Mar 11
United Airlines Logo
3:46 pm - 9:59 pm
SJU
-
ONT
10h 13m
1 stop
United Airlines Logo
6:00 am - 8:26 pm
ONT
-
SJU
11h 26m
1 stop
$374United Airlines
Thu, May 28 - Wed, Jun 24
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
1:05 pm - 12:45 am
ONT
-
SJU
8h 40m
1 stop
$397Southwest
Wed, May 27 - Wed, Jun 24
United Airlines Logo
2:05 am - 12:32 pm
SJU
-
ONT
13h 27m
2 stops
United Airlines Logo
5:55 am - 8:38 pm
ONT
-
SJU
11h 43m
1 stop
$414United Airlines
Thu, May 28 - Wed, Jun 10
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
9:55 am - 12:15 am
ONT
-
SJU
11h 20m
2 stops
$415Southwest
Fri, May 29 - Tue, Jun 23
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
1:05 pm - 12:45 am
ONT
-
SJU
8h 40m
1 stop
$419Southwest
Sat, Feb 14 - Sat, Feb 28
American Airlines Logo
7:33 am - 1:49 pm
SJU
-
ONT
10h 16m
1 stop
American Airlines Logo
10:37 pm - 11:40 am
ONT
-
SJU
9h 03m
1 stop
$434American Airlines
Wed, May 27 - Wed, Jun 10
JetBlue Logo
1:50 pm - 10:09 pm
SJU
-
ONT
11h 19m
1 stop
JetBlue Logo
11:25 pm - 1:47 pm
ONT
-
SJU
11h 22m
1 stop
$435JetBlue
Wed, May 27 - Sat, May 30
JetBlue Logo
10:40 am - 10:09 pm
STI
-
ONT
14h 29m
1 stop
JetBlue Logo
11:25 pm - 1:22 pm
ONT
-
STI
10h 57m
1 stop
$636JetBlue
Useful Info

Good to know

Low seasonMarch
Cheapest flight$187
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 9215 reviews
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

6.0 GoodAnonymous, Jan 2026
SLC - SFO
Read more United Airlines reviews

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

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.

We were upgraded to Business Class. So comfortable with great service and food options

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

The comfort of Business Class made this trip far more comfortable. I was indeed surprised when I asked one of the flight attendant to help me set up my "bed", she responded that "We don't make beds in Business Class any longer...only First Class" I believe her name was Giselle, but I'm not certain. She did instruct me how to adjust the seat, place the hooded cover and I clearly understood how to place the blanket and the cover. Additionally, the meal I was served (a beef dish) was almost inedible. The beef was tough and odd tasting. I didn't mention it as I was hoping to quickly settle down and try to get some sleep.

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

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario