What is the cheapest airline that flies from Ontario to Caribbean Islands?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Ontario to Caribbean Islands

What airlines fly to Caribbean Islands?

American Airlines, United Airlines and JetBlue are the top three most popular airlines that fly to Caribbean Islands from Ontario according to our data. American Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 11 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

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?

As of April 2026, there are 6 operators available to choose from 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.

$187 Cheap Flights from Ontario to Caribbean Islands in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:59 pm - 11:56 am

ONT

SJU

9h 57m

1 stop

2:40 pm - 9:56 pm

SJU

ONT

10h 16m

1 stop

$336Delta

Tue, Aug 11 - Wed, Aug 19

12:59 pm - 9:43 am

ONT

SJU

17h 44m

2 stops

5:46 pm - 9:34 am

SJU

ONT

18h 48m

2 stops

$362American Airlines

Tue, Aug 11 - Sat, Aug 22

10:59 pm - 11:56 am

ONT

SJU

9h 57m

1 stop

2:40 pm - 9:56 pm

SJU

ONT

10h 16m

1 stop

$374Delta

Fri, Aug 14 - Tue, Aug 18

5:00 am - 5:38 pm

ONT

SJU

9h 38m

1 stop

2:55 pm - 9:58 pm

SJU

ONT

10h 03m

1 stop

$419United Airlines

Mon, Sep 28 - Tue, Oct 6

6:30 pm - 2:25 pm

ONT

PLS

16h 55m

2 stops

5:15 pm - 12:12 pm

PLS

ONT

21h 57m

2 stops

$488United Airlines

Wed, May 27 - Mon, Jun 1

10:50 am - 12:11 pm

ONT

MBJ

23h 21m

2 stops

1:16 pm - 11:06 am

MBJ

ONT

47h 50m

2 stops

$488Frontier

Tue, May 19 - Tue, May 26

3:34 pm - 2:25 pm

ONT

PUJ

19h 51m

2 stops

9:29 pm - 4:48 pm

PUJ

ONT

22h 19m

2 stops

$515Frontier

Thu, Jun 18 - Thu, Jun 25

4:40 pm - 1:25 pm

ONT

SXM

17h 45m

2 stops

2:25 pm - 9:10 am

SXM

ONT

21h 45m

2 stops

$614Southwest

Thu, Jul 2 - Fri, Jul 10

10:41 pm - 3:20 pm

ONT

AUA

13h 39m

1 stop

12:54 pm - 10:01 pm

AUA

ONT

12h 07m

1 stop

$668JetBlue

Sat, Jun 6 - Sat, Jun 13

10:41 pm - 7:44 pm

ONT

STI

18h 03m

1 stop

5:01 am - 8:47 pm

STI

ONT

18h 46m

1 stop

$679JetBlue

Sat, May 23 - Wed, Jun 3

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Southwest flights from Ontario to Caribbean Islands

Our best Southwest deals on Ontario to Caribbean Islands flight tickets

Southwest

Aug 5

ONT4:45 pmOntario

15h 10m

2 stops

SJU10:55 amSan Juan Luis Munoz Marin Intl

Aug 15

SJU6:25 amSan Juan Luis Munoz Marin Intl

11h 05m

2 stops

ONT2:30 pmOntario

$422

Southwest

Sep 6

ONT7:00 amOntario

13h 50m

2 stops

SJU11:50 pmSan Juan Luis Munoz Marin Intl

Sep 20

SJU5:00 amSan Juan Luis Munoz Marin Intl

12h 00m

2 stops

ONT2:00 pmOntario

$446

Southwest

Jul 20

ONT9:40 pmOntario

12h 00m

1 stop

SJU12:40 pmSan Juan Luis Munoz Marin Intl

Aug 6

SJU6:30 amSan Juan Luis Munoz Marin Intl

12h 00m

2 stops

ONT3:30 pmOntario

$484

United Airlines flights from Ontario to Caribbean Islands

Our best United Airlines deals on Ontario to Caribbean Islands flight tickets

United Airlines

Apr 30

ONT1:40 pmOntario

21h 50m

2 stops

MBJ1:30 pmMontego Bay Sangster Intl

May 2

MBJ2:40 pmMontego Bay Sangster Intl

9h 18m

1 stop

ONT9:58 pmOntario

$392

United Airlines

Sep 28

ONT5:00 amOntario

9h 38m

1 stop

SJU5:38 pmSan Juan Luis Munoz Marin Intl

Oct 6

SJU2:55 pmSan Juan Luis Munoz Marin Intl

10h 03m

1 stop

ONT9:58 pmOntario

$419

United Airlines

Aug 8

ONT5:45 amOntario

15h 05m

2 stops

SJU11:50 pmSan Juan Luis Munoz Marin Intl

Aug 17

SJU2:20 pmSan Juan Luis Munoz Marin Intl

10h 39m

1 stop

ONT9:59 pmOntario

$427

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 8/11

10:59 pm-11:56 am

1 stop9h 57m

San Juan Luis Munoz Marin Intl

Wed 8/19

2:40 pm-9:56 pm

1 stop10h 16m

$336

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 8/11

12:59 pm-9:43 am

2 stops17h 44m

San Juan Luis Munoz Marin Intl

Sat 8/22

5:46 pm-9:34 am

2 stops18h 48m

$362

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Fri 8/14

10:59 pm-11:56 am

1 stop9h 57m

San Juan Luis Munoz Marin Intl

Tue 8/18

2:40 pm-9:56 pm

1 stop10h 16m

$374

Quickest round-trip

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Mon 9/28

5:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Tue 10/6

2:55 pm-9:58 pm

1 stop10h 03m

$419

OntarioProvidenciales

ONT - PLS

ONTPLS

Ontario

Wed 5/27

6:30 pm-2:25 pm

2 stops16h 55m

Providenciales

Mon 6/1

5:15 pm-12:12 pm

2 stops21h 57m

$488

OntarioMontego Bay

ONT - MBJ

ONTMBJ

Ontario

Tue 5/19

10:50 am-12:11 pm

2 stops23h 21m

Montego Bay Sangster Intl

Tue 5/26

1:16 pm-11:06 am

2 stops47h 50m

$488

OntarioPunta Cana

ONT - PUJ

ONTPUJ

Ontario

Thu 6/18

3:34 pm-2:25 pm

2 stops19h 51m

Punta Cana

Thu 6/25

9:29 pm-4:48 pm

2 stops22h 19m

$515

OntarioSimpson Bay

ONT - SXM

ONTSXM

Ontario

Thu 7/2

4:40 pm-1:25 pm

2 stops17h 45m

Simpson Bay Princess Juliana

Fri 7/10

2:25 pm-9:10 am

2 stops21h 45m

$614

OntarioOranjestad

ONT - AUA

ONTAUA

Ontario

Sat 6/6

10:41 pm-3:20 pm

1 stop13h 39m

Oranjestad Reina Beatrix

Sat 6/13

12:54 pm-10:01 pm

1 stop12h 07m

$668

OntarioSantiago de los Caballeros

ONT - STI

ONTSTI

Ontario

Sat 5/23

10:41 pm-7:44 pm

1 stop18h 03m

Santiago de los Caballeros

Wed 6/3

5:01 am-8:47 pm

1 stop18h 46m

$679

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Caribbean Islands?

The month of July is, on average, the cheapest month to fly to Caribbean Islands from Ontario, with most prices found around $139. The month of August is another great option to travel to Caribbean Islands, with average flight prices from Ontario averaging around $372.

How far in advance should I book a flight from Ontario 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 $560 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 $438 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	7h 11m
Direct flights	None

The fastest flight from Ontario to Caribbean Islands takes 7h 11m

There are no direct flights from Ontario to Caribbean Islands. There are no popular flight routes from Ontario to Caribbean Islands.

Search flight deals

Frequently asked questions about flying from Ontario to Caribbean Islands

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?
As of April 2026, there are 6 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Caribbean Islands is Airbus A321neo (13.36% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (12.73%), Boeing 737-800 Passenger/BBJ2 (winglets) (11.01%), and Airbus A320neo (10.46%).

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
Frontier	PriceFrom $137	Free Cancellation	Rating 5.6 2,970 reviews	Search Frontier flights
Delta	PriceFrom $292	Free Cancellation	Rating 7.9 8,466 reviews	Search Delta flights
United Airlines	PriceFrom $321	Free Cancellation	Rating 7.4 9,672 reviews	Search United Airlines flights
American Airlines	PriceFrom $360	Free Cancellation	Rating 7.1 11,677 reviews	Search American Airlines flights
Southwest	PriceFrom $419	Free Cancellation	Rating 8.0 4,314 reviews	Search Southwest flights
JetBlue	PriceFrom $421	Free Cancellation	Rating 7.1 2,967 reviews	Search JetBlue 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.