$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 5/23. 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

Sat, May 9 - Sat, May 23
United Airlines Logo
2:40 pm - 9:58 pm
MBJ
-
ONT
9h 18m
1 stop
United Airlines Logo
5:00 am - 3:45 pm
ONT
-
MBJ
8h 45m
1 stop
$353United Airlines
Tue, Jun 2 - Tue, Jun 23
Frontier Logo
6:25 am - 7:11 pm
SJU
-
ONT
15h 46m
1 stop
Frontier Logo
4:15 pm - 5:53 am
ONT
-
SJU
10h 38m
1 stop
$386Frontier
Thu, May 28 - Tue, Jun 30
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
$412Southwest
Tue, Apr 21 - Fri, Apr 24
Delta Logo
12:55 pm - 9:00 pm
SJU
-
ONT
11h 05m
1 stop
Delta Logo
10:15 pm - 11:45 am
ONT
-
SJU
10h 30m
1 stop
$420Delta
Sun, May 31 - Mon, Jun 22
Frontier Logo
6:25 am - 7:11 pm
SJU
-
ONT
15h 46m
1 stop
Frontier Logo
4:15 pm - 5:53 am
ONT
-
SJU
10h 38m
1 stop
$426Frontier
Wed, Jun 17 - Thu, Aug 20
Multiple Airlines Logo
1:30 pm - 10:40 pm
SJU
-
ONT
12h 10m
1 stop
Multiple Airlines Logo
4:15 pm - 5:53 am
ONT
-
SJU
10h 38m
1 stop
$433Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
American Airlines Logo
11:59 pm - 10:09 am
SJU
-
ONT
13h 10m
1 stop
American Airlines Logo
7:35 pm - 12:03 pm
ONT
-
SJU
13h 28m
2 stops
$439American Airlines
Thu, May 28 - Tue, Jun 23
Southwest Logo
5:35 am - 3:15 pm
SJU
-
ONT
12h 40m
1 stop
Southwest Logo
8:25 pm - 10:25 am
ONT
-
SJU
11h 00m
2 stops
$442Southwest
Tue, Jun 2 - Wed, Jun 17
Multiple Airlines Logo
10:00 am - 8:45 pm
SJU
-
ONT
13h 45m
1 stop
Multiple Airlines Logo
4:15 pm - 5:53 am
ONT
-
SJU
10h 38m
1 stop
$453Multiple Airlines
Sat, Jul 4 - Sun, Jul 12
American Airlines Logo
3:36 pm - 10:34 pm
STT
-
ONT
9h 58m
1 stop
American Airlines Logo
7:14 pm - 4:00 pm
ONT
-
STT
17h 46m
2 stops
$619American Airlines
Useful Info

Good to know

Low seasonMarch
Cheapest flight$123
Best time to beat the crowds but there is an average 26% increase 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 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 4325 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
Airline reviews

Boarding was easy. The seats are small and fairly uncomfortable

8.0 ExcellentNicole, Mar 2026
LGB - OAK
Read more Southwest reviews

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 boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

The head flight attendant made the trip excellent. He was very accommodating.

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Terrible experience! delay 2 time and say i dont have ticket

It was amazing. I had several upgraded seats on my flight out. Everything went smooth with no delays.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Flight attendants had a little attitude. Food tastes no good.

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

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.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario