What airlines fly to Ontario?

American Airlines, United Airlines and JetBlue are the top three most popular airlines that fly to Ontario from Puerto Rico according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Puerto Rico to Ontario?

Frontier, American Airlines, and Delta are the most popular carriers operating from Puerto Rico to Ontario

How long does it take to fly to Ontario?

Average flight duration from Puerto Rico to Ontario depends on which airport you fly into and out of. Flying from Aguadilla to Los Angeles is 8h 54m on average, while flying from Ponce to Los Angeles is 10h 26m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from Puerto Rico to Ontario Airport?

Prices for flights from Puerto Rico to Ontario Airport were last updated today.

How many operators does momondo search for flights from Puerto Rico to Ontario Airport?

The number of operators available for flights from Puerto Rico to Ontario Airport is 2 as of December 2025.

How old do you have to be to fly from Puerto Rico to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Puerto Rico to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$111 Cheap Flights from Puerto Rico to Ontario in 2025/26

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Find the cheapest flights from Puerto Rico to Los Angeles

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7:07 am - 2:18 pm

SJU

ONT

11h 11m1 stop

12:57 pm - 10:48 am

ONT

SJU

17h 51m2 stops

$341American Airlines

Tue, Jan 13 - Sat, Jan 17

7:07 am - 10:48 pm

SJU

ONT

19h 41m1 stop

11:59 pm - 10:26 pm

ONT

SJU

18h 27m1 stop

$366American Airlines

Wed, Jan 14 - Sun, Jan 18

8:30 am - 9:29 pm

SJU

ONT

16h 59m1 stop

10:39 pm - 11:41 am

ONT

SJU

9h 02m1 stop

$371American Airlines

Thu, Feb 19 - Thu, Feb 26

2:25 pm - 8:58 pm

SJU

ONT

10h 33m1 stop

6:00 am - 9:26 pm

ONT

SJU

11h 26m1 stop

$373United Airlines

Thu, Jan 22 - Thu, Jan 29

3:54 pm - 10:48 pm

SJU

ONT

10h 54m1 stop

6:00 am - 10:26 pm

ONT

SJU

12h 26m1 stop

$429American Airlines

Tue, Jan 13 - Sat, Jan 17

7:45 am - 8:58 pm

SJU

ONT

17h 13m2 stops

1:53 pm - 6:11 am

ONT

SJU

12h 18m2 stops

$431United Airlines

Wed, Jan 14 - Sun, Jan 18

12:00 pm - 10:09 pm

SJU

ONT

13h 09m1 stop

11:25 pm - 1:29 pm

ONT

SJU

11h 04m1 stop

$433JetBlue

Fri, May 1 - Fri, May 8

1:50 pm - 10:09 pm

SJU

ONT

11h 19m1 stop

11:25 pm - 1:47 pm

ONT

SJU

11h 22m1 stop

$434JetBlue

Fri, May 29 - Mon, Jun 22

5:05 am - 3:15 pm

SJU

ONT

13h 10m2 stops

1:05 pm - 12:45 am

ONT

SJU

8h 40m1 stop

$435Southwest

Thu, May 28 - Tue, Jun 23

10:00 am - 10:09 pm

SJU

ONT

15h 09m1 stop

11:25 pm - 1:47 pm

ONT

SJU

11h 22m1 stop

$464JetBlue

Wed, May 13 - Wed, Jun 3

United Airlines flights from Puerto Rico to Ontario

Our best United Airlines deals on Puerto Rico to Ontario flight tickets

United Airlines

Jan 22

SJU7:45 amSan Juan Luis Munoz Marin Intl

13h 58m

2 stops

ONT5:43 pmOntario

Jan 29

ONT6:00 amOntario

11h 26m

1 stop

SJU9:26 pmSan Juan Luis Munoz Marin Intl

$373

Find similar

United Airlines

Jan 14

SJU7:45 amSan Juan Luis Munoz Marin Intl

17h 13m

2 stops

ONT8:58 pmOntario

Jan 18

ONT1:53 pmOntario

12h 18m

2 stops

SJU6:11 amSan Juan Luis Munoz Marin Intl

$431

Find similar

United Airlines

Jan 23

SJU3:46 pmSan Juan Luis Munoz Marin Intl

10h 12m

1 stop

ONT9:58 pmOntario

Jan 30

ONT1:24 pmOntario

12h 47m

2 stops

SJU6:11 amSan Juan Luis Munoz Marin Intl

$484

Find similar

Southwest flights from Puerto Rico to Ontario

Our best Southwest deals on Puerto Rico to Ontario flight tickets

Southwest

May 28

SJU5:05 amSan Juan Luis Munoz Marin Intl

13h 10m

2 stops

ONT3:15 pmOntario

Jun 23

ONT1:05 pmOntario

8h 40m

1 stop

SJU12:45 amSan Juan Luis Munoz Marin Intl

$435

Find similar

Southwest

May 30

SJU10:00 amSan Juan Luis Munoz Marin Intl

15h 00m

1 stop

ONT10:00 pmOntario

Jun 23

ONT1:05 pmOntario

8h 40m

1 stop

SJU12:45 amSan Juan Luis Munoz Marin Intl

$466

Find similar

Southwest

May 29

SJU6:50 amSan Juan Luis Munoz Marin Intl

16h 15m

2 stops

ONT8:05 pmOntario

Jun 23

ONT1:05 pmOntario

8h 40m

1 stop

SJU12:45 amSan Juan Luis Munoz Marin Intl

$473

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 1/13

7:07 am-2:18 pm

1 stop11h 11m

Ontario

Sat 1/17

12:57 pm-10:48 am

2 stops17h 51m

$341

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 1/14

7:07 am-10:48 pm

1 stop19h 41m

Ontario

Sun 1/18

11:59 pm-10:26 pm

1 stop18h 27m

$366

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 2/19

8:30 am-9:29 pm

1 stop16h 59m

Ontario

Thu 2/26

10:39 pm-11:41 am

1 stop9h 02m

$371

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 1/22

2:25 pm-8:58 pm

1 stop10h 33m

Ontario

Thu 1/29

6:00 am-9:26 pm

1 stop11h 26m

$373

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 1/13

3:54 pm-10:48 pm

1 stop10h 54m

Ontario

Sat 1/17

6:00 am-10:26 pm

1 stop12h 26m

$429

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 1/14

7:45 am-8:58 pm

2 stops17h 13m

Ontario

Sun 1/18

1:53 pm-6:11 am

2 stops12h 18m

$431

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 5/1

12:00 pm-10:09 pm

1 stop13h 09m

Ontario

Fri 5/8

11:25 pm-1:29 pm

1 stop11h 04m

$433

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 5/29

1:50 pm-10:09 pm

1 stop11h 19m

Ontario

Mon 6/22

11:25 pm-1:47 pm

1 stop11h 22m

$434

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 5/28

5:05 am-3:15 pm

2 stops13h 10m

Ontario

Tue 6/23

1:05 pm-12:45 am

1 stop8h 40m

$435

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 5/13

10:00 am-10:09 pm

1 stop15h 09m

Ontario

Wed 6/3

11:25 pm-1:47 pm

1 stop11h 22m

$464

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Puerto Rico to Ontario

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

Other information

What is the cheapest month to fly to Ontario?

In general, July is the cheapest month to fly from Puerto Rico to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $333. If you aren’t able to travel during the month of July, then book flights to Ontario from Puerto Rico during March instead. Flights to Ontario in March, while not as cheap as those in July, still average around $358.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Puerto Rico to Ontario for around $734.

Can stopping save me money on Puerto Rico to Ontario flights?

You could potentially save up to 1% on your flight if you consider stops on a Puerto Rico to Ontario flight.

Cheap Puerto Rico to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Puerto Rico to Ontario

Fastest flight time	9h 55m
Direct flights	None

The fastest flight from Puerto Rico to Ontario takes 9h 55m

There are no direct flights from Puerto Rico to Ontario. There are no popular flight routes from Puerto Rico to Ontario.

Search flight deals

When did momondo last update prices for flights from Puerto Rico to Ontario Airport?
Prices for flights from Puerto Rico to Ontario Airport were last updated today.
How many operators does momondo search for flights from Puerto Rico to Ontario Airport?
The number of operators available for flights from Puerto Rico to Ontario Airport is 2 as of December 2025.
How old do you have to be to fly from Puerto Rico to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Puerto Rico to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Puerto Rico to Ontario

Compare and see reviews for airlines that fly from Puerto Rico to Ontario with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $355	Free Cancellation	Rating 7.2 11,073 reviews		Search American Airlines flights
United Airlines	PriceFrom $367	Free Cancellation	Rating 7.4 9,113 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Puerto Rico to Ontario?

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

Can I find flights from Puerto Rico to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Puerto Rico on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Puerto Rico to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Puerto Rico to Ontario.

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

Yes. momondo can track prices for Puerto Rico to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.