$186 Find Cheap Flights from Ontario to Caribbean

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 departing on 8/24. 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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Cheap Flights from Ontario to Caribbean

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Punta Cana
Punta Cana2 stops$513
Santo Domingo
Santo Domingo2 stops$637
Montego Bay
Montego Bay1 stop$392
Oranjestad
Oranjestad2 stops$751
Nassau
Nassau1 stop$484
Kingston
Kingston2 stops$767
Simpson Bay
Simpson Bay2 stops$468
Providenciales
Providenciales1 stop$493
Port of Spain
Port of Spain1 stop$825
Bridgetown
Bridgetown1 stop$797
George Town
George Town2 stops$582
Willemstad
Willemstad2 stops$850
Aguadilla
Aguadilla2 stops$672
St. John's
St. John's1 stop$777
Punta Cana
Punta Cana2 stops$513
Santo Domingo
Santo Domingo2 stops$637
Montego Bay
Montego Bay1 stop$392
Oranjestad
Oranjestad2 stops$751
Nassau
Nassau1 stop$484
Kingston
Kingston2 stops$767
Simpson Bay
Simpson Bay2 stops$468
Providenciales
Providenciales1 stop$493
Port of Spain
Port of Spain1 stop$825
Bridgetown
Bridgetown1 stop$797
George Town
George Town2 stops$582
Willemstad
Willemstad2 stops$850
Aguadilla
Aguadilla2 stops$672
St. John's
St. John's1 stop$777

Book Cheap Ontario to Caribbean 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 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

Fri, Aug 21 - Wed, Aug 26
United Airlines Logo
6:00 am - 8:38 pm
ONT
-
SJU
11h 38m
1 stop
United Airlines Logo
7:00 am - 8:01 pm
SJU
-
ONT
16h 01m
2 stops
$374United Airlines
Fri, Sep 18 - Mon, Sep 21
American Airlines Logo
11:59 pm - 3:02 pm
ONT
-
SJU
12h 03m
1 stop
American Airlines Logo
7:05 pm - 9:29 am
SJU
-
ONT
17h 24m
2 stops
$384American Airlines
Wed, Sep 23 - Wed, Sep 30
American Airlines Logo
8:02 pm - 2:45 pm
ONT
-
SJU
15h 43m
2 stops
American Airlines Logo
6:30 am - 9:37 pm
SJU
-
ONT
18h 07m
2 stops
$389American Airlines
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
11:59 pm - 4:13 pm
ONT
-
MBJ
14h 14m
1 stop
American Airlines Logo
12:38 pm - 9:11 pm
MBJ
-
ONT
10h 33m
1 stop
$392American Airlines
Sun, Aug 30 - Thu, Sep 24
Delta Logo
10:00 pm - 1:04 pm
ONT
-
MBJ
13h 04m
1 stop
Delta Logo
1:25 pm - 9:56 pm
MBJ
-
ONT
10h 31m
1 stop
$412Delta
Sun, Aug 30 - Thu, Sep 24
Delta Logo
10:00 pm - 1:04 pm
ONT
-
MBJ
13h 04m
1 stop
Delta Logo
1:25 pm - 11:44 pm
MBJ
-
ONT
12h 19m
2 stops
$417Delta
Sat, Aug 22 - Fri, Aug 28
Southwest Logo
1:00 pm - 9:10 am
ONT
-
SJU
17h 10m
2 stops
Southwest Logo
6:30 am - 3:30 pm
SJU
-
ONT
12h 00m
2 stops
$419Southwest
Thu, Jul 9 - Thu, Jul 16
United Airlines Logo
1:50 pm - 1:30 pm
ONT
-
MBJ
21h 40m
2 stops
United Airlines Logo
2:40 pm - 9:55 pm
MBJ
-
ONT
9h 15m
1 stop
$456United Airlines
Mon, Jun 15 - Wed, Jul 1
JetBlue Logo
11:58 pm - 2:53 pm
ONT
-
AUA
11h 55m
1 stop
JetBlue Logo
6:00 pm - 10:39 pm
AUA
-
ONT
31h 39m
1 stop
$760JetBlue
Sun, Jun 7 - Tue, Jun 23
JetBlue Logo
10:41 pm - 3:20 pm
ONT
-
AUA
13h 39m
1 stop
JetBlue Logo
1:35 pm - 10:43 pm
AUA
-
ONT
12h 08m
1 stop
$767JetBlue
Booking Insights

KAYAK's insights & trends for Ontario to Caribbean flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Caribbean, 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 is November, when tickets cost $120 (return) on average. On the other hand, the most expensive months are May and August, when the average cost of round-trip tickets is $355 and $355 respectively.

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

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, 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, you should book around 3 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$186
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Ontario to San Juan

FAQs - booking Caribbean flights

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

    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.

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

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

    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 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?

    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 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

 
Need help choosing which airline to fly with from Ontario to Caribbean? 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 4281 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

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

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

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.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

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.

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

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

No screens or meal options. Freezing cold. Dirty seats. Left late.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

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

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

What a great flight. Seats were more comfortable than other airlines. Flight was full but very easy to navigate. No stress no drama

Flight was quick, less time than expected, and the attendants all friendly and helpful. We had paid extra for more leg room and were very comfortable. Haven't flown JetBlue in quite a while. Glad to be back!

All airline travel outside of First or Business class is an ordeal to be endured. This trip was ok, small o, small k.

TV was broken and could not shut it off. The flicking was bother me and gave me a headache. The WiFi wouldn’t work correctly, I was able to text but not search the web or surf social media. The plane itself had a lot of wear and tear it is due for an update.

JetBlue not only has the most comfortable planes, but also used to have the best customer service. Lorie Wright, the lady at the gate was very rude not only to me, but to other passengers as well. Her colleague, the gentleman was also not very friendly. They both were acting like they were doing passengers a favor. The crew on board was very nice.

Flight was on time and smooth. Customer service was decent

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

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

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

They didn’t offer a water, even after I asked

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports