$157 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 6/6. 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$433
Santo Domingo
Santo Domingo1 stop$525
Montego Bay
Montego Bay2 stops$357
Oranjestad
Oranjestad1 stop$706
Nassau
Nassau2 stops$424
Kingston
Kingston2 stops$497
Simpson Bay
Simpson Bay2 stops$408
Providenciales
Providenciales2 stops$666
Port of Spain
Port of Spain1 stop$608
Bridgetown
Bridgetown2 stops$597
George Town
George Town1 stop$447
Willemstad
Willemstad1 stop$770
St. John's
St. John's2 stops$857
Aguadilla
Aguadilla2 stops$484
Punta Cana
Punta Cana2 stops$433
Santo Domingo
Santo Domingo1 stop$525
Montego Bay
Montego Bay2 stops$357
Oranjestad
Oranjestad1 stop$706
Nassau
Nassau2 stops$424
Kingston
Kingston2 stops$497
Simpson Bay
Simpson Bay2 stops$408
Providenciales
Providenciales2 stops$666
Port of Spain
Port of Spain1 stop$608
Bridgetown
Bridgetown2 stops$597
George Town
George Town1 stop$447
Willemstad
Willemstad1 stop$770
St. John's
St. John's2 stops$857
Aguadilla
Aguadilla2 stops$484

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

Mon, May 4 - Fri, May 8
United Airlines Logo
5:00 am - 5:38 pm
ONT
-
SJU
9h 38m
1 stop
United Airlines Logo
1:00 am - 12:38 pm
SJU
-
ONT
14h 38m
2 stops
$316United Airlines
Sat, Apr 11 - Tue, Apr 14
United Airlines Logo
6:05 am - 8:38 pm
ONT
-
SJU
11h 33m
1 stop
United Airlines Logo
1:00 am - 12:20 pm
SJU
-
ONT
14h 20m
2 stops
$335United Airlines
Sat, Apr 25 - Sun, May 3
American Airlines Logo
2:08 pm - 11:24 am
ONT
-
MBJ
19h 16m
2 stops
American Airlines Logo
2:29 pm - 10:09 am
MBJ
-
ONT
21h 40m
2 stops
$362American Airlines
Fri, May 1 - Tue, May 5
Southwest Logo
9:55 pm - 1:45 pm
ONT
-
SJU
12h 50m
1 stop
Southwest Logo
5:35 am - 4:20 pm
SJU
-
ONT
13h 45m
2 stops
$379Southwest
Sat, Apr 18 - Sat, Apr 25
American Airlines Logo
10:26 pm - 8:51 pm
ONT
-
SJU
19h 25m
1 stop
American Airlines Logo
7:25 am - 9:07 pm
SJU
-
ONT
16h 42m
1 stop
$382American Airlines
Fri, May 1 - Tue, May 5
Southwest Logo
9:55 pm - 10:25 am
ONT
-
SJU
9h 30m
1 stop
Southwest Logo
5:05 am - 4:20 pm
SJU
-
ONT
14h 15m
1 stop
$400Southwest
Wed, Apr 8 - Thu, Apr 16
Frontier Logo
10:03 pm - 5:27 pm
ONT
-
PUJ
16h 24m
2 stops
Frontier Logo
11:47 am - 7:31 am
PUJ
-
ONT
22h 44m
2 stops
$433Frontier
Fri, Apr 17 - Sat, Apr 25
Frontier Logo
8:59 pm - 1:54 pm
ONT
-
PUJ
13h 55m
2 stops
Frontier Logo
12:02 pm - 7:26 am
PUJ
-
ONT
22h 24m
2 stops
$436Frontier
Sun, May 3 - Thu, May 14
Delta Logo
10:15 pm - 12:00 pm
ONT
-
GCM
11h 45m
1 stop
Delta Logo
1:19 pm - 9:54 pm
GCM
-
ONT
10h 35m
1 stop
$447Delta
Mon, May 4 - Tue, May 12
Delta Logo
1:29 pm - 12:00 pm
ONT
-
GCM
20h 31m
2 stops
Delta Logo
1:19 pm - 9:54 pm
GCM
-
ONT
10h 35m
1 stop
$452Delta
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 October, when tickets cost $391 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $812 and $629 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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$157
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Ontario to Simpson Bay

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.
8.0
SouthwestOverall score based on 4300 reviews
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

4.0 OkayDaniel, Feb 2026
LGB - PHX
Read more Southwest reviews

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

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.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

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

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

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

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

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.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports