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$103+ Cheap flights from Ontario (ONT) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Ontario to Puerto Rico

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Puerto Rico (PR0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Ontario to Puerto Rico

Cheapest flights from Ontario to Puerto Rico
Explore the most affordable flight options available from Ontario to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/174:48 pmONT - SJU
1 stop9h 42mFrontier
Tue 12/248:00 amSJU - ONT
1 stop11h 48mFrontier
Deal found 11/19$278
This eDestinos deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/158:04 amONT - SJU
2 stops29h 39mMultiple Airlines
Sat 1/48:10 pmSJU - ONT
3 stops38h 59mMultiple Airlines
Deal found 11/19$524
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/236:28 pmONT - SJU
2 stops17h 10mUnited Airlines
Thu 12/52:25 pmSJU - ONT
2 stops13h 33mUnited Airlines
Deal found 11/20$609
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/188:35 amONT - SJU
2 stops12h 10mSouthwest
Wed 12/255:35 amSJU - ONT
2 stops14h 20mSouthwest
Deal found 11/20$679
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2310:00 pmONT - SJU
1 stop12h 31mDelta
Thu 12/51:50 pmSJU - ONT
1 stop13h 11mDelta
Deal found 11/20$689
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/211:59 pmONT - SJU
1 stop11h 10mAmerican Airlines
Fri 12/612:45 pmSJU - ONT
1 stop11h 55mAmerican Airlines
Deal found 11/20$717
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/226:00 amONT - BQN
2 stops13h 57mUnited Airlines
Mon 11/251:09 amBQN - ONT
2 stops15h 51mUnited Airlines
Deal found 11/20$869
This Alaska Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:10 pmONT - SJU
2 stops41h 05mAlaska Airlines
Tue 12/106:25 amSJU - ONT
2 stops34h 33mAlaska Airlines
Deal found 11/20$1,064

Find flights from Ontario to Puerto Rico within your budget

Customize your flight search to find flights from Ontario to Puerto Rico 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, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

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Fly to

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Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 12/17

4:48 pm-6:30 am

1 stop9h 42m

San Juan Luis Munoz Marin Intl

Tue 12/24

8:00 am-3:48 pm

1 stop11h 48m

$278

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 1/28

7:00 am-11:45 pm

1 stop12h 45m

San Juan Luis Munoz Marin Intl

Tue 2/4

3:30 pm-10:52 pm

1 stop11h 22m

$354

OntarioAguadilla

ONT - BQN

ONTBQN

Ontario

Sat 1/25

6:00 am-11:57 pm

2 stops13h 57m

Aguadilla Borinquen

Fri 1/31

1:09 am-12:43 pm

2 stops15h 34m

$354

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Wed 2/5

6:10 am-11:58 pm

2 stops13h 48m

San Juan Luis Munoz Marin Intl

Mon 2/10

6:00 am-6:24 pm

2 stops16h 24m

$424

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 3/1

1:44 pm-6:12 am

2 stops12h 28m

San Juan Luis Munoz Marin Intl

Tue 3/4

7:45 am-8:55 pm

2 stops17h 10m

$444

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Mon 5/5

5:35 am-9:05 pm

2 stops12h 30m

San Juan Luis Munoz Marin Intl

Mon 5/12

7:40 am-4:10 pm

2 stops11h 30m

$458

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sun 12/15

8:04 am-5:43 pm

2 stops29h 39m

San Juan Luis Munoz Marin Intl

Sat 1/4

8:10 pm-7:09 am

3 stops38h 59m

$524

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 3/11

4:20 pm-1:56 pm

2 stops18h 36m

San Juan Luis Munoz Marin Intl

Tue 3/18

3:24 pm-10:37 pm

2 stops34h 13m

$967

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Wed 1/22

12:34 pm-2:56 pm

2 stops22h 22m

$103

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Wed 1/8

12:48 pm-12:00 pm

2 stops19h 12m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Puerto Rico

Get recent, data-driven insights about flights from Ontario to Puerto Rico including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Ontario to Puerto Rico (average of $254). Flying from Ontario to Puerto Rico in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to PR?

Find hourly flight availability from Ontario to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Puerto Rico as you normally would.

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated November 21, 2024.
Read reviews from past customers who have flown American Airlines, United Airlines and Alaska Airlines from Ontario to Puerto Rico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

WestJet
7.3
Good
2,810 reviews
Southwest
8.1
Very good
5,015 reviews

Crew

8.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Puerto Rico?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Puerto Rico. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • What are the cheapest airlines to fly from Ontario to Puerto Rico one-way?

    One-way options have recently been found by users for as low as $103 on Frontier. Other airlines that offer cheap prices include American Airlines from $177 and United Airlines from $222 one-way.

  • Can I find deals for flights from Ontario to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Ontario to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Puerto Rico.

  • Can I find deals for business class flights from Ontario to Puerto Rico?

    Yes. Cheapflights offers flight deals from Ontario to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Puerto Rico (average of $254). Flying from Ontario to Puerto Rico in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Puerto Rico

Discover the top 5 airlines that operate flights from Ontario to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$260Average$328FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$273Average$577FlexibilityNo cancel feeOn-time62%
DeltaCheapest$334Average$473FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$363Average$667FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$403Average$667FlexibilityNo cancel feeOn-time69%
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