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Cheap flights from Ontario (ONT) to Puerto Rico from $145

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 6/16. 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.
ONT — SJU
May 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
1 adult, Economy
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How far in advance should I book a flight from Ontario to Puerto Rico?

Find a great deal and save up to 72% by booking at least 26 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Puerto Rico within the next two weeks, with the cheapest ticket starting at $435.

What is the cheapest month to fly from Ontario to Puerto Rico?

September can be a great time to fly to Puerto Rico from Ontario with a flight ticket averaging about $462. Cheapflights users have found deals in the month of September for as cheap as $228. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from Ontario to Puerto Rico (ONT - PR)?

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.

Cheap Frontier flights from Ontario to Puerto Rico

Explore cheap flight options specifically provided by Frontier for the route between Ontario and Puerto Rico. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Ontario to Puerto Rico. Come back soon if you're not finding the exact deal you're looking for.
Thu 6/1312:59 amONT - SJU
2 stops11h 02mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 5/7$294
Sun 6/910:12 amONT - SJU
1 stop15h 38mFrontier
Thu 6/134:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 5/6$304
Sun 6/912:59 amONT - SJU
2 stops11h 22mFrontier
Sun 6/163:57 pmSJU - ONT
2 stops17h 26mFrontier
Deal found 5/6$314
Wed 6/512:49 amONT - SJU
2 stops11h 12mFrontier
Mon 6/104:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/6$344
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops34h 32mFrontier
Deal found 5/5$365
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/5$367
Tue 6/1112:59 amONT - SJU
2 stops10h 52mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/7$368
Mon 6/175:13 pmONT - SJU
1 stop9h 30mFrontier
Sat 6/224:27 pmSJU - ONT
2 stops21h 12mFrontier
Deal found 5/6$371
Thu 6/612:44 amONT - SJU
2 stops11h 17mFrontier
Tue 6/114:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 5/6$374

Cheap Delta flights from Ontario to Puerto Rico

Explore cheap flight options specifically provided by Delta for the route between Ontario and Puerto Rico. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Browse through some of the cheapest Delta flights traveling from Ontario to Puerto Rico. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Thu 9/57:00 amONT - SJU
1 stop12h 09mDelta
Mon 9/1612:54 pmSJU - ONT
1 stop12h 34mDelta
Deal found 5/6$334
Fri 9/67:00 amONT - SJU
1 stop12h 09mDelta
Mon 9/1612:54 pmSJU - ONT
1 stop12h 34mDelta
Deal found 5/6$424
Thu 5/166:00 amONT - SJU
1 stop12h 56mDelta
Thu 6/612:49 pmSJU - ONT
1 stop12h 58mDelta
Deal found 5/6$463
Thu 7/47:05 amONT - SJU
1 stop13h 04mDelta
Thu 7/182:25 pmSJU - ONT
1 stop11h 12mDelta
Deal found 5/5$475
Tue 7/237:00 amONT - SJU
1 stop12h 09mDelta
Sat 8/1712:54 pmSJU - ONT
1 stop12h 18mDelta
Deal found 5/6$501
Tue 5/216:00 amONT - SJU
1 stop12h 56mDelta
Sun 6/22:31 pmSJU - ONT
1 stop11h 16mDelta
Deal found 5/6$612
Tue 5/146:00 amONT - SJU
1 stop12h 56mDelta
Tue 5/2112:49 pmSJU - ONT
1 stop10h 17mDelta
Deal found 5/6$637
Tue 5/215:45 amONT - SJU
2 stops13h 11mDelta
Sun 6/22:31 pmSJU - ONT
1 stop11h 16mDelta
Deal found 5/6$642
Thu 10/310:59 pmONT - SJU
1 stop9h 48mDelta
Mon 10/712:54 pmSJU - ONT
1 stop9h 28mDelta
Deal found 5/5$648

Cheap Ontario to Puerto Rico flights in May & June 2024

Find cheap flight options from Ontario to Puerto Rico specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Prices were last updated on May 7, 2024.
Check out some of the best flight deals from Ontario to Puerto Rico in 2024. For more flight deals, be sure to check back very soon.
Sun 6/910:12 amONT - SJU
1 stop15h 38mFrontier
Thu 6/134:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 5/6$304
Sun 6/912:59 amONT - SJU
2 stops11h 22mFrontier
Sun 6/163:57 pmSJU - ONT
2 stops17h 26mFrontier
Deal found 5/6$314
Wed 6/512:49 amONT - SJU
2 stops11h 12mFrontier
Mon 6/104:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/6$344
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops34h 32mFrontier
Deal found 5/5$365
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/5$367
Mon 6/175:13 pmONT - SJU
1 stop9h 30mFrontier
Sat 6/224:27 pmSJU - ONT
2 stops21h 12mFrontier
Deal found 5/6$371
Thu 6/612:44 amONT - SJU
2 stops11h 17mFrontier
Tue 6/114:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 5/6$374
Thu 6/611:59 amONT - SJU
2 stops24h 02mFrontier
Mon 6/104:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/6$381
Thu 6/612:44 amONT - SJU
2 stops11h 17mFrontier
Fri 6/144:07 pmSJU - ONT
2 stops34h 42mFrontier
Deal found 5/6$385

Ontario to Puerto Rico 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Puerto Rico in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Check out some of the best flight deals from Ontario to Puerto Rico in 2024. For more flight deals, be sure to check back very soon.
Sun 6/910:12 amONT - SJU
1 stop15h 38mFrontier
Thu 6/134:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 5/6$304
Sun 6/912:59 amONT - SJU
2 stops11h 22mFrontier
Sun 6/163:57 pmSJU - ONT
2 stops17h 26mFrontier
Deal found 5/6$314
Thu 9/57:00 amONT - SJU
1 stop12h 09mDelta
Mon 9/1612:54 pmSJU - ONT
1 stop12h 34mDelta
Deal found 5/6$334
Wed 6/512:49 amONT - SJU
2 stops11h 12mFrontier
Mon 6/104:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/6$344
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops34h 32mFrontier
Deal found 5/5$365
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Mon 6/244:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/5$367
Mon 6/175:13 pmONT - SJU
1 stop9h 30mFrontier
Sat 6/224:27 pmSJU - ONT
2 stops21h 12mFrontier
Deal found 5/6$371
Thu 6/612:44 amONT - SJU
2 stops11h 17mFrontier
Tue 6/114:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 5/6$374
Thu 6/611:59 amONT - SJU
2 stops24h 02mFrontier
Mon 6/104:27 pmSJU - ONT
2 stops18h 00mFrontier
Deal found 5/6$381

Ontario to Puerto Rico flights leaving soon

Find last-minute flight options from Ontario to Puerto Rico for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Users seeking a last-minute flight from Ontario to Puerto Rico should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 5/166:00 amONT - SJU
1 stop12h 56mDelta
Thu 6/612:49 pmSJU - ONT
1 stop12h 58mDelta
Deal found 5/6$463
Mon 5/1311:40 pmONT - SJU
1 stop11h 27mJetBlue
Thu 6/1311:19 amSJU - ONT
1 stop14h 19mJetBlue
Deal found 5/6$527
Thu 5/1610:29 pmONT - SJU
1 stop18h 46mAmerican Airlines
Sun 5/1912:45 amSJU - ONT
1 stop11h 55mAmerican Airlines
Deal found 5/6$541
Thu 5/167:40 pmONT - SJU
2 stops12h 25mAmerican Airlines
Thu 6/63:49 pmSJU - ONT
1 stop10h 10mAmerican Airlines
Deal found 5/6$542
Mon 5/1310:29 pmONT - SJU
1 stop15h 36mAmerican Airlines
Thu 5/168:00 amSJU - ONT
1 stop13h 59mAmerican Airlines
Deal found 5/6$589
Mon 5/1310:29 pmONT - SJU
1 stop11h 16mAmerican Airlines
Wed 5/1512:45 amSJU - ONT
1 stop11h 55mAmerican Airlines
Deal found 5/6$591
Thu 5/1610:29 pmONT - SJU
1 stop18h 46mAmerican Airlines
Mon 5/201:39 pmSJU - ONT
2 stops11h 50mAmerican Airlines
Deal found 5/6$622
Thu 5/167:40 pmONT - SJU
2 stops14h 00mAmerican Airlines
Mon 5/2011:55 amSJU - ONT
2 stops13h 34mAmerican Airlines
Deal found 5/6$623
Tue 5/146:00 amONT - SJU
1 stop12h 56mDelta
Tue 5/2112:49 pmSJU - ONT
1 stop10h 17mDelta
Deal found 5/6$637

One-way flights to Puerto Rico from Ontario

Search for one-way flight options from Ontario to Puerto Rico. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Take a look at some of the best available options we've come across on one-way flights from Ontario to Puerto Rico. For those needing a return trip from Ontario, there is a search form available above.
Sun 6/1612:59 amONT - SJU
2 stops11h 22mFrontier
Deal found 5/6$145
Sun 6/2310:12 amONT - SJU
1 stop15h 38mFrontier
Deal found 5/6$149
Mon 9/1611:59 pmONT - SJU
2 stops13h 16mAmerican Airlines
Deal found 5/6$151
Sun 6/910:12 amONT - SJU
1 stop15h 38mFrontier
Deal found 5/6$169
Tue 5/2811:40 pmONT - SJU
1 stop13h 15mJetBlue
Deal found 5/7$192
Sat 6/812:59 amONT - SJU
2 stops10h 52mFrontier
Deal found 5/6$199
Wed 7/3110:00 pmONT - SJU
1 stop10h 49mDelta
Deal found 5/6$200
Sat 10/265:15 amONT - SJU
1 stop9h 15mUnited Airlines
Deal found 5/7$201
Tue 5/287:40 pmONT - SJU
2 stops16h 05mAmerican Airlines
Deal found 5/6$205

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 2,749,864 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$294 - $446

Route

Depart

Return

Price

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Thu 6/13

2 stops11h 02m

San Juan Luis Munoz Marin Intl

Thu 6/20

2 stops17h 16m

$294

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Sun 6/9

1 stop15h 38m

San Juan Luis Munoz Marin Intl

Thu 6/13

2 stops17h 16m

$304

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Sun 6/9

2 stops11h 22m

San Juan Luis Munoz Marin Intl

Sun 6/16

2 stops17h 26m

$314

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Thu 9/5

1 stop12h 09m

San Juan Luis Munoz Marin Intl

Mon 9/16

1 stop12h 34m

$334

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Wed 6/5

2 stops11h 12m

San Juan Luis Munoz Marin Intl

Mon 6/10

2 stops18h 00m

$344

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Sat 8/31

2 stops17h 30m

San Juan Luis Munoz Marin Intl

Tue 9/3

2 stops14h 54m

$397

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Thu 9/5

1 stop8h 37m

San Juan Luis Munoz Marin Intl

Wed 9/11

2 stops12h 17m

$410

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Wed 9/4

1 stop12h 11m

San Juan Luis Munoz Marin Intl

Wed 9/11

1 stop12h 27m

$438

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 10/4

3 stops16h 25m

San Juan Luis Munoz Marin Intl

Wed 10/9

2 stops13h 17m

$446

Flights are sorted by cheapest first

Deals found on 5/7

No data available for this route at this time. Please check back soon.

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 May 7, 2024.
Read reviews from past customers who have flown Frontier, Delta and American Airlines from Ontario to Puerto Rico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,147 reviews
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,810 reviews
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

JetBlue
7.6
Good
4,530 reviews
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,073 reviews
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,686 reviews
Alaska Airlines
8.1
Very good
9,147 reviews
Check prices

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

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.

  • Can I find flights from Ontario to Puerto Rico for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to Puerto Rico for under $300. The cheapest flight booked recently is on Frontier for just $294, but on average you can expect to pay $372.

  • Are there last-minute flights available from Ontario to Puerto Rico for under $500?

    There are currently 20+ open flights from Ontario to Puerto Rico within the next 7 days for less than $500.

  • 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 $145 on Frontier. Other airlines that offer cheap prices include American Airlines from $151 and JetBlue from $192 one-way.

  • What are the most popular airlines that fly from Ontario to Puerto Rico?

    Before booking your flight from Ontario to Puerto Rico check out the most popular airlines for this route: American Airlines, Alaska Airlines or JetBlue.

  • What does ONT to SJU mean?

    Ontario Airport is ONT and San Juan Luis Munoz Marin Intl Airport is SJU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Aguadilla Borinquen Airport (BQN), Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Ontario to Puerto Rico that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Puerto Rico flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Puerto Rico with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Puerto Rico flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Ontario to Puerto Rico that allow pets onboard?

    Many airlines flying from Ontario to Puerto Rico offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Puerto Rico?

    Yes, you can often find last-minute deals on Ontario to Puerto Rico flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Puerto Rico flight deals updated?

    The Ontario to Puerto Rico flight deals you see on this page were last updated on 5/6.

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 6 airlines flying from Ontario to Puerto Rico

Discover the top 6 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 2,749,864 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$243Average$341FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapest$269Average$626FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest$334Average$684FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$356Average$609FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$357Average$695FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$472Average$568FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Ontario to Puerto Rico by cabin class

Find flights from Ontario to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Puerto Rico?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Puerto Rico. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Puerto Rico?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Puerto Rico with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Puerto Rico, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Puerto Rico become cheaper?

Of course! You can now track prices for flights from Ontario to Puerto Rico and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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