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Cheap flights from Ontario to Caribbean Islands from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Caribbean Islands departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Caribbean Islands

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:05 am - 1:24 am
ONT
-
SJU
15h 19m
2 stops
Multiple Airlines Logo
7:44 pm - 8:48 pm
SJU
-
ONT
29h 04m
1 stop
$284Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
United Airlines Logo
5:00 am - 10:22 pm
ONT
-
SJU
13h 22m
2 stops
United Airlines Logo
7:40 am - 5:41 pm
SJU
-
ONT
14h 01m
2 stops
$336United Airlines
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
11:58 pm - 4:28 pm
ONT
-
SXM
12h 30m
2 stops
American Airlines Logo
3:17 pm - 8:49 am
SXM
-
ONT
21h 32m
2 stops
$364American Airlines
Sun, Feb 22 - Thu, Feb 26
American Airlines Logo
11:59 pm - 4:52 pm
ONT
-
SJU
12h 53m
1 stop
American Airlines Logo
2:44 pm - 9:24 pm
SJU
-
ONT
10h 40m
1 stop
$372American Airlines
Mon, Mar 2 - Fri, Mar 6
Frontier Logo
8:09 pm - 9:17 am
ONT
-
MBJ
10h 08m
2 stops
Frontier Logo
10:05 am - 7:26 am
MBJ
-
ONT
24h 21m
2 stops
$438Frontier
Sat, Feb 14 - Fri, Feb 20
Southwest Logo
6:00 am - 6:30 pm
ONT
-
NAS
9h 30m
2 stops
Southwest Logo
2:10 pm - 10:25 pm
NAS
-
ONT
11h 15m
2 stops
$476Southwest
Wed, Apr 1 - Tue, Apr 7
Frontier Logo
7:17 pm - 2:02 pm
ONT
-
PUJ
14h 45m
2 stops
Frontier Logo
12:12 pm - 11:59 pm
PUJ
-
ONT
15h 47m
2 stops
$544Frontier
Wed, Feb 25 - Sun, Mar 1
Southwest Logo
9:55 pm - 2:25 pm
ONT
-
STT
13h 30m
1 stop
Southwest Logo
2:05 pm - 10:00 pm
STT
-
ONT
10h 55m
1 stop
$666Southwest
Sat, Apr 25 - Sat, May 2
Delta Logo
10:15 pm - 12:14 pm
ONT
-
AUA
10h 59m
1 stop
Delta Logo
1:25 pm - 8:58 pm
AUA
-
ONT
10h 33m
1 stop
$697Delta
Wed, Apr 29 - Wed, May 6
Delta Logo
5:55 pm - 12:14 pm
ONT
-
AUA
15h 19m
2 stops
Delta Logo
1:25 pm - 8:58 pm
AUA
-
ONT
10h 33m
1 stop
$702Delta
Wed, Apr 29 - Wed, May 6

American Airlines flights from Ontario to Caribbean Islands

Our best American Airlines deals on Ontario to Caribbean Islands flight tickets
American Airlines
Feb 25
ONT6:00 amOntario
13h 31m
1 stop
SJU11:31 pmSan Juan Luis Munoz Marin Intl
Mar 4
SJU8:40 amSan Juan Luis Munoz Marin Intl
15h 05m
1 stop
ONT7:45 pmOntario
$364
American Airlines
Mar 3
ONT10:56 amOntario
8h 35m
1 stop
SJU11:31 pmSan Juan Luis Munoz Marin Intl
Mar 6
SJU2:44 pmSan Juan Luis Munoz Marin Intl
10h 40m
1 stop
ONT9:24 pmOntario
$372
American Airlines
Mar 5
ONT11:58 pmOntario
12h 02m
2 stops
SXM4:00 pmSimpson Bay Princess Juliana
Mar 12
SXM2:21 pmSimpson Bay Princess Juliana
21h 28m
2 stops
ONT8:49 amOntario
$378

Southwest flights from Ontario to Caribbean Islands

Our best Southwest deals on Ontario to Caribbean Islands flight tickets
Southwest
Feb 24
ONT10:20 amOntario
10h 15m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Mar 9
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 50m
2 stops
ONT3:20 pmOntario
$395
Southwest
Mar 3
ONT10:20 amOntario
10h 15m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Mar 6
SJU6:30 amSan Juan Luis Munoz Marin Intl
12h 50m
2 stops
ONT3:20 pmOntario
$422
Southwest
Mar 3
ONT10:20 amOntario
10h 15m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Mar 6
SJU6:30 amSan Juan Luis Munoz Marin Intl
12h 50m
2 stops
ONT3:20 pmOntario
$430

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Thu 2/19

6:05 am-1:24 am

2 stops15h 19m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:44 pm-8:48 pm

1 stop29h 04m

$284

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Thu 2/19

5:00 am-10:22 pm

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:40 am-5:41 pm

2 stops14h 01m

$336

OntarioSimpson Bay

ONT - SXM

ONTSXM

Ontario

Sun 2/22

11:58 pm-4:28 pm

2 stops12h 30m

Simpson Bay Princess Juliana

Thu 2/26

3:17 pm-8:49 am

2 stops21h 32m

$364

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Mon 3/2

11:59 pm-4:52 pm

1 stop12h 53m

San Juan Luis Munoz Marin Intl

Fri 3/6

2:44 pm-9:24 pm

1 stop10h 40m

$372

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

Sat 2/14

8:09 pm-9:17 am

2 stops10h 08m

Montego Bay Sangster Intl

Fri 2/20

10:05 am-7:26 am

2 stops24h 21m

$438

OntarioNassau

ONT - NAS

ONTNAS

Ontario

Wed 4/1

6:00 am-6:30 pm

2 stops9h 30m

Nassau Intl

Tue 4/7

2:10 pm-10:25 pm

2 stops11h 15m

$476

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Wed 2/25

7:17 pm-2:02 pm

2 stops14h 45m

Punta Cana

Sun 3/1

12:12 pm-11:59 pm

2 stops15h 47m

$544

OntarioSaint Thomas Island

ONT - STT

ONTSTT

Ontario

Sat 4/25

9:55 pm-2:25 pm

1 stop13h 30m

Saint Thomas Island Cyril E King

Sat 5/2

2:05 pm-10:00 pm

1 stop10h 55m

$666

OntarioOranjestad

ONT - AUA

ONTAUA

Ontario

Wed 4/29

10:15 pm-12:14 pm

1 stop10h 59m

Oranjestad Reina Beatrix

Wed 5/6

1:25 pm-8:58 pm

1 stop10h 33m

$697

OntarioOranjestad

ONT - AUA

ONTAUA

Ontario

Wed 4/29

5:55 pm-12:14 pm

2 stops15h 19m

Oranjestad Reina Beatrix

Wed 5/6

1:25 pm-8:58 pm

1 stop10h 33m

$702

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Caribbean Islands from

How to get the cheapest flight ticket from Ontario to Caribbean Islands

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Caribbean Islands?

The month of October is, on average, the cheapest month to fly to Caribbean Islands from Ontario, with most prices found around $391. The month of February is another great option to travel to Caribbean Islands, with average flight prices from Ontario averaging around $476.

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

You are more likely to see cheaper flights to Caribbean Islands from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands for around $579 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean Islands from Ontario for as low as $460 on momondo.

Can stopping save me money on Ontario to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between Ontario to Caribbean Islands.

Cheap Ontario to Caribbean Islands flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Caribbean Islands

Fastest flight time

6h 56m

Direct flights

None
The fastest flight from Ontario to Caribbean Islands takes 6h 56m
There are no direct flights from Ontario to Caribbean Islands. There are no popular flight routes from Ontario to Caribbean Islands.
Search flight deals

  • When did momondo last update prices for flights from Ontario Airport to Caribbean Islands?

    Prices for flights from Ontario Airport to Caribbean Islands refresh daily.

  • How many operators does momondo search for flights from Ontario Airport to Caribbean Islands?

  • How old do you have to be to fly from Ontario Airport to Caribbean Islands?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Caribbean Islands.

  • What documentation or ID do you need to fly to Caribbean Islands?

    The travel and health documents required for your trip to Caribbean Islands can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Caribbean Islands. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Ontario to Caribbean Islands?

Best airlines flying from Ontario to Caribbean Islands

Compare and see reviews for airlines that fly from Ontario to Caribbean Islands with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $73Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,088 reviews
Search Delta flights
United AirlinesPriceFrom $321Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
American AirlinesPriceFrom $365Free CancellationRating
7.2
11,174 reviews
Search American Airlines flights
JetBluePriceFrom $421Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
SouthwestPriceFrom $480Free CancellationRating
8.0
4,266 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Caribbean Islands?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Caribbean Islands. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Caribbean Islands with flexible booking policies on momondo?

Flights from Ontario to Caribbean Islands with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Caribbean Islands?

Once all potential Ontario to Caribbean Islands flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Caribbean Islands right now. Can momondo alert me if prices change?

Price alerts on flights to Caribbean Islands from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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