$187 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 7/12. 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$502
Santo Domingo
Santo Domingo2 stops$621
Montego Bay
Montego Bay1 stop$392
Oranjestad
Oranjestad1 stop$668
Nassau
Nassau1 stop$484
Kingston
Kingston1 stop$857
Simpson Bay
Simpson Bay2 stops$468
Providenciales
Providenciales1 stop$475
Port of Spain
Port of Spain1 stop$799
Bridgetown
Bridgetown2 stops$792
George Town
George Town1 stop$529
Willemstad
Willemstad2 stops$781
Aguadilla
Aguadilla2 stops$662
St. John's
St. John's2 stops$872
Punta Cana
Punta Cana2 stops$502
Santo Domingo
Santo Domingo2 stops$621
Montego Bay
Montego Bay1 stop$392
Oranjestad
Oranjestad1 stop$668
Nassau
Nassau1 stop$484
Kingston
Kingston1 stop$857
Simpson Bay
Simpson Bay2 stops$468
Providenciales
Providenciales1 stop$475
Port of Spain
Port of Spain1 stop$799
Bridgetown
Bridgetown2 stops$792
George Town
George Town1 stop$529
Willemstad
Willemstad2 stops$781
Aguadilla
Aguadilla2 stops$662
St. John's
St. John's2 stops$872

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, Aug 17 - Fri, Aug 28
Delta Logo
10:59 pm - 11:56 am
ONT
-
SJU
9h 57m
1 stop
Delta Logo
7:30 am - 6:01 pm
SJU
-
ONT
13h 31m
1 stop
$374Delta
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
6:00 am - 4:13 pm
ONT
-
MBJ
8h 13m
1 stop
American Airlines Logo
12:38 pm - 9:11 pm
MBJ
-
ONT
10h 33m
1 stop
$392American Airlines
Wed, May 13 - Fri, Jun 5
United Airlines Logo
6:59 pm - 1:30 pm
ONT
-
MBJ
16h 31m
2 stops
United Airlines Logo
4:12 pm - 12:12 pm
MBJ
-
ONT
22h 00m
2 stops
$407United Airlines
Sat, Aug 8 - Mon, Aug 17
United Airlines Logo
5:00 am - 5:38 pm
ONT
-
SJU
9h 38m
1 stop
United Airlines Logo
2:20 pm - 9:59 pm
SJU
-
ONT
10h 39m
1 stop
$427United Airlines
Sun, Sep 6 - Sun, Sep 20
Southwest Logo
7:00 am - 11:50 pm
ONT
-
SJU
13h 50m
2 stops
Southwest Logo
5:00 am - 2:00 pm
SJU
-
ONT
12h 00m
2 stops
$446Southwest
Tue, May 19 - Tue, May 26
Frontier Logo
10:50 am - 12:11 pm
ONT
-
MBJ
23h 21m
2 stops
Frontier Logo
1:16 pm - 11:06 am
MBJ
-
ONT
47h 50m
2 stops
$488Frontier
Wed, Jul 15 - Wed, Jul 22
Frontier Logo
1:28 pm - 12:27 pm
ONT
-
MBJ
44h 59m
2 stops
Frontier Logo
1:32 pm - 5:49 pm
MBJ
-
ONT
30h 17m
2 stops
$519Frontier
Thu, Jul 2 - Fri, Jul 10
Southwest Logo
4:40 pm - 1:25 pm
ONT
-
SXM
17h 45m
2 stops
Southwest Logo
2:25 pm - 9:10 am
SXM
-
ONT
21h 45m
2 stops
$614Southwest
Sat, Jun 6 - Sat, Jun 13
JetBlue Logo
10:41 pm - 3:20 pm
ONT
-
AUA
13h 39m
1 stop
JetBlue Logo
12:54 pm - 10:01 pm
AUA
-
ONT
12h 07m
1 stop
$668JetBlue
Sat, May 23 - Wed, Jun 3
JetBlue Logo
10:41 pm - 7:44 pm
ONT
-
STI
18h 03m
1 stop
JetBlue Logo
8:14 am - 8:47 pm
STI
-
ONT
15h 33m
1 stop
$677JetBlue
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 August and May, when the average cost of round-trip tickets is $368 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 14% 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$187
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 4% 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.
8.0
SouthwestOverall score based on 4314 reviews
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
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

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.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew was very friendly. Did not like being jammed in the back middle seat. Don’t understand why I can not select an aisle for free based on first come first serve. Also first time I’ve been on a flight which attempted land then circled Detroit airport multiple times.

Terrible. There was a lot of misleading information regarding ticketing, seat upgrades, & boarding group. I also expect my seat will recline. I have back problems & it is very painful for me of the seat doesn’t recline. In addition, when I choose a fare that allows me a carry-on bag, I expect to be able to carry it on. Not be forced to check it. Thos happened on my flight to MCO & back to Boston. Not sure I will ever fly JetBlue again. Further I bought the ticket through hat deal. I will NEVER do that again. They were incapable of providing an accurate record locator # for either leg of the trip. I had to call them before each flight with me VERY stressed about whether I would actually be able to get on my flight. Who does that? Who books flight & then FAILS to give an accurate record locator? Twice!

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

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.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

I cancelled my ticket less than 24 hours deadline but I didn’t get refunded.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

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

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

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