$182 Find Cheap Flights from Ontario to Caribbean Islands - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Caribbean Islands departing on 8/21. 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.
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Cheap Flights from Ontario to Caribbean Islands

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Punta Cana
Punta Cana2 stops$614
Santo Domingo
Santo Domingo2 stops$581
Montego Bay
Montego Bay2 stops$397
Oranjestad
Oranjestad2 stops$649
Nassau
Nassau2 stops$625
Kingston
Kingston2 stops$767
Simpson Bay
Simpson Bay2 stops$561
Providenciales
Providenciales2 stops$518
Port of Spain
Port of Spain1 stop$721
Bridgetown
Bridgetown1 stop$751
George Town
George Town2 stops$667
Willemstad
Willemstad2 stops$797
Aguadilla
Aguadilla2 stops$484
St. John's
St. John's1 stop$691
Punta Cana
Punta Cana2 stops$614
Santo Domingo
Santo Domingo2 stops$581
Montego Bay
Montego Bay2 stops$397
Oranjestad
Oranjestad2 stops$649
Nassau
Nassau2 stops$625
Kingston
Kingston2 stops$767
Simpson Bay
Simpson Bay2 stops$561
Providenciales
Providenciales2 stops$518
Port of Spain
Port of Spain1 stop$721
Bridgetown
Bridgetown1 stop$751
George Town
George Town2 stops$667
Willemstad
Willemstad2 stops$797
Aguadilla
Aguadilla2 stops$484
St. John's
St. John's1 stop$691

Book Cheap Ontario to Caribbean Islands Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Caribbean Islands 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 Ontario to Caribbean Islands

Thu, Oct 22 - Sat, Oct 31
United Airlines Logo
5:00 am - 5:38 pm
ONT
-
SJU
9h 38m
1 stop
United Airlines Logo
7:25 am - 8:56 pm
SJU
-
ONT
16h 31m
2 stops
$384United Airlines
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
8:35 am - 10:00 pm
ONT
-
SJU
10h 25m
2 stops
Southwest Logo
5:05 am - 2:30 pm
SJU
-
ONT
12h 25m
2 stops
$394Southwest
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
2:43 pm - 11:35 am
ONT
-
MBJ
18h 52m
2 stops
American Airlines Logo
5:08 pm - 11:43 am
MBJ
-
ONT
20h 35m
2 stops
$397American Airlines
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
2:43 pm - 1:49 pm
ONT
-
MBJ
21h 06m
2 stops
American Airlines Logo
12:47 pm - 9:34 am
MBJ
-
ONT
22h 47m
1 stop
$405American Airlines
Thu, Oct 22 - Sat, Oct 31
United Airlines Logo
5:00 am - 5:38 pm
ONT
-
SJU
9h 38m
1 stop
United Airlines Logo
1:21 pm - 8:56 pm
SJU
-
ONT
10h 35m
1 stop
$429United Airlines
Mon, Sep 14 - Fri, Sep 18
Southwest Logo
11:00 am - 11:50 pm
ONT
-
SJU
9h 50m
2 stops
Southwest Logo
5:00 am - 2:00 pm
SJU
-
ONT
12h 00m
2 stops
$437Southwest
Fri, Oct 16 - Mon, Oct 19
JetBlue Logo
11:15 pm - 1:21 pm
ONT
-
SJU
11h 06m
1 stop
JetBlue Logo
2:31 pm - 10:01 pm
SJU
-
ONT
10h 30m
1 stop
$454JetBlue
Mon, Aug 10 - Fri, Aug 14
Frontier Logo
11:47 am - 2:25 pm
ONT
-
PUJ
23h 38m
2 stops
Frontier Logo
3:31 pm - 11:50 pm
PUJ
-
ONT
35h 19m
2 stops
$614Frontier
Mon, Aug 24 - Fri, Aug 28
JetBlue Logo
11:59 pm - 1:54 pm
ONT
-
SXM
10h 55m
1 stop
JetBlue Logo
11:20 am - 10:38 pm
SXM
-
ONT
14h 18m
1 stop
$642JetBlue
Sun, Aug 9 - Sun, Aug 16
Frontier Logo
8:17 am - 11:03 am
ONT
-
SDQ
23h 46m
2 stops
Frontier Logo
12:55 pm - 8:03 am
SDQ
-
ONT
22h 08m
2 stops
$711Frontier
Booking Insights

KAYAK's insights & trends for Ontario to Caribbean Islands flights

Get data-powered insights and trends into flights from Ontario to Caribbean Islands to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Ontario to Caribbean Islands?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $414, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Ontario to Caribbean Islands?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Caribbean Islands, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Caribbean Islands is December, when tickets cost $297 (return) on average. On the other hand, the most expensive months are January and October, when the average cost of round-trip tickets is $570 and $510 respectively.

How far in advance should I book a flight from Ontario to Caribbean Islands?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Caribbean Islands, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Caribbean Islands, you should book around 8 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$182
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Ontario to Montego Bay

FAQs - booking Caribbean Islands flights

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

    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 Ontario to Caribbean Islands.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Caribbean Islands 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 Ontario to Caribbean Islands?

    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 from Ontario to Caribbean Islands with an airline and back with another airline.

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

    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 from Ontario to Caribbean Islands up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Ontario to Caribbean Islands

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Caribbean Islands. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Caribbean Islands? 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.
7.9
SouthwestOverall score based on 4251 reviews
7.0Food
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

10.0 Excellentkelly, Jul 2026
SFO - PHX
Read more Southwest reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

The seats were very uncomfortable. I paid for the front economy. i swear they added a row of seats in there. It was so tight, that I could measure the distance between my seat and the one in front from my elbow to the tips of my fingers plus six inches. The seat cushion was completely worn out. The dinner was very good. Thank you for having a vegetarian option as a standard. But breakfast was nothing but sugar. that's not food. The crew was crabby and rude, especially in regards to coming to the back gallery. And the entertainment choice: why would you put violent movies on the choice? the Godfather? Some movies with black women being beaten over the head with clubs? What the heck? You know that when there is a movie on a plane, everyone gets to watch it. Why choose the most violent titles possible? The total number of movies were very limited, and the television, even more so. No games were available on the set. The wellness section was nice, thank you. I appreciated a galley in the middle where I could stand. The seats were unbearable.

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

Excellent communication from the staff. We actually arrived early. Very friendly and professional staff.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Over the course of 7 months of travel, I can count on my hand the number of times the flight has departed on time. Majority of the instances have been related to non-weather reasons. Would not recommend flying this Airline

The food was okay and the space in business class was smaller than we had to Singapore.

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

The plane was spartan, the seats not that comfortable. It was like flying a super low budget airline. They charged for coffee!!! I have never, ever experienced that before.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The flight was on time and arrived early. The crew were friendly and helpful.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Seats were great, the staff was great, and the food was about the best I've had on a plane, and is especially the best of any US-based carrier I've flown. Free Wi-Fi was also great.

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

It was good. I’m very disappointed that they don’t give commentary ear pods for the movie. I forgot mine at home

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Entertainment and wifi were very sub-par - audio issues and no wifi

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

Long lines, rude staff, everything that's offered you have to pay for.

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

Everything you need to know for your flight to Caribbean Islands

Information on your arrival and departure airports