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Cheap flights from Ontario (ONT) to Luis Munoz Marin Intl (SJU) from $104

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 7/8. 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
Jun 12 — Jun 191
From?
To?
Wed 6/12
Wed 6/19
1 adult, Economy
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The best prices from Ontario to San Juan Luis Munoz Marin Intl are usually found in September or July, booked 22 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Ontario to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Luis Munoz Marin Intl (SJU). 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 June 7, 2024.

Popular in

December

Cheapest in

September

Round-trip from

$245

One-way from

$192
High demand for flights, 42% potential price rise
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Best time to find cheap flights, 32% potential price drop
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From Ontario to San Juan Luis Munoz Marin Intl
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One-way flight from Ontario to San Juan Luis Munoz Marin Intl
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What is the cheapest day to fly round-trip from Ontario to San Juan Luis Munoz Marin Intl Airport?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 51% when planning your travel around this day of the week.

How far in advance should I book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 26 days in advance, which can save you up to 72% on flights from Ontario to San Juan Luis Munoz Marin Intl Airport compared to booking the week you need them. Waiting 26 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $432. For sooner than that we have options available in the next 3 days from $655.

What is the cheapest month to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

September is one of the best times of the year to fly to San Juan Luis Munoz Marin Intl Airport from Ontario. Prices for September average $461 per person but you can even find prices for as low as $228. The most expensive prices can be found in the month of December. Opting for a September flight can save you 35% on your journey compared to booking in December

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

One of the essential ways to save on airfare from Ontario to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 52% on airfare.

Cheap Ontario to Luis Munoz Marin Intl flights in June & July 2024

Find cheap flight options from Ontario to Luis Munoz Marin Intl specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Prices were last updated on June 7, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to San Juan in 2024. Check back in a little while for more flight options.
Mon 6/2412:49 amONT - SJU
2 stops11h 12mFrontier
Thu 7/44:07 pmSJU - ONT
2 stops17h 12mFrontier
Deal found 6/7$274
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Tue 6/254:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 6/7$277
Mon 6/179:36 pmONT - SJU
2 stops14h 25mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 6/7$278
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Fri 6/214:07 pmSJU - ONT
2 stops34h 52mFrontier
Deal found 6/6$282
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Wed 6/193:57 pmSJU - ONT
2 stops34h 41mFrontier
Deal found 6/7$283
Mon 7/812:49 amONT - SJU
2 stops11h 14mFrontier
Wed 7/174:01 pmSJU - ONT
2 stops22h 01mFrontier
Deal found 6/6$307
Fri 7/1210:03 pmONT - SJU
2 stops14h 20mFrontier
Sat 8/34:31 pmSJU - ONT
2 stops34h 28mFrontier
Deal found 6/6$314
Fri 7/1212:39 amONT - SJU
2 stops11h 44mFrontier
Thu 7/184:11 pmSJU - ONT
2 stops34h 28mFrontier
Deal found 6/7$315
Fri 7/512:40 amONT - SJU
2 stops11h 43mFrontier
Sat 7/134:31 pmSJU - ONT
2 stops34h 28mFrontier
Deal found 6/6$323

Ontario to Luis Munoz Marin Intl 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Luis Munoz Marin Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Data last updated June 7, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to San Juan in 2024. Check back in a little while for more flight options.
Mon 6/2412:49 amONT - SJU
2 stops11h 12mFrontier
Thu 7/44:07 pmSJU - ONT
2 stops17h 12mFrontier
Deal found 6/7$274
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Tue 6/254:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 6/7$277
Mon 6/179:36 pmONT - SJU
2 stops14h 25mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 6/7$278
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Fri 6/214:07 pmSJU - ONT
2 stops34h 52mFrontier
Deal found 6/6$282
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Wed 6/193:57 pmSJU - ONT
2 stops34h 41mFrontier
Deal found 6/7$283
Wed 8/1411:59 pmONT - SJU
2 stops13h 41mAmerican Airlines
Sat 8/245:35 pmSJU - ONT
2 stops19h 19mAmerican Airlines
Deal found 6/7$302
Mon 7/812:49 amONT - SJU
2 stops11h 14mFrontier
Wed 7/174:01 pmSJU - ONT
2 stops22h 01mFrontier
Deal found 6/6$307
Fri 7/1210:03 pmONT - SJU
2 stops14h 20mFrontier
Sat 8/34:31 pmSJU - ONT
2 stops34h 28mFrontier
Deal found 6/6$314
Fri 7/1212:39 amONT - SJU
2 stops11h 44mFrontier
Thu 7/184:11 pmSJU - ONT
2 stops34h 28mFrontier
Deal found 6/7$315

Ontario to Luis Munoz Marin Intl flights leaving soon

Find last-minute flight options from Ontario to Luis Munoz Marin Intl 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 3,045,324 searches. Data last updated June 7, 2024.
Book one of these great deals on flights from Ontario to San Juan. Tip: verify your flight details before completing your reservation.
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Tue 6/254:07 pmSJU - ONT
2 stops17h 55mFrontier
Deal found 6/7$277
Mon 6/179:36 pmONT - SJU
2 stops14h 25mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 6/7$278
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Fri 6/214:07 pmSJU - ONT
2 stops34h 52mFrontier
Deal found 6/6$282
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Wed 6/193:57 pmSJU - ONT
2 stops34h 41mFrontier
Deal found 6/7$283
Mon 6/175:13 pmONT - SJU
1 stop9h 30mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 6/7$358
Fri 6/1412:44 amONT - SJU
2 stops11h 37mFrontier
Wed 6/193:57 pmSJU - ONT
2 stops34h 41mFrontier
Deal found 6/6$361
Sun 6/1612:59 amONT - SJU
2 stops11h 22mFrontier
Thu 6/204:07 pmSJU - ONT
2 stops17h 16mFrontier
Deal found 6/7$388
Sat 6/159:44 amONT - SJU
2 stops26h 07mFrontier
Wed 6/193:57 pmSJU - ONT
2 stops34h 41mFrontier
Deal found 6/6$423
Sun 6/1610:12 amONT - SJU
1 stop15h 38mFrontier
Sat 6/224:27 pmSJU - ONT
2 stops21h 12mFrontier
Deal found 6/6$428

One-way flights to Luis Munoz Marin Intl from Ontario

Search for one-way flight options from Ontario to Luis Munoz Marin Intl. 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 3,045,324 searches. Data last updated June 7, 2024.
Users in need of a one-way flight from Ontario to San Juan can choose from these deals. Users in need of a round-trip flight from Ontario to San Juan instead should update the search form at the top of page.
Mon 7/89:08 pmONT - SJU
2 stops14h 55mFrontier
Deal found 6/6$104
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Deal found 6/7$128
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Deal found 6/6$129
Mon 6/1712:59 amONT - SJU
2 stops11h 02mFrontier
Deal found 6/6$134
Sat 7/2012:59 amONT - SJU
2 stops10h 54mFrontier
Deal found 6/7$137
Fri 7/1212:39 amONT - SJU
2 stops11h 44mFrontier
Deal found 6/6$139
Wed 7/312:49 amONT - SJU
2 stops11h 12mFrontier
Deal found 6/6$145
Tue 6/1812:59 amONT - SJU
2 stops10h 52mFrontier
Deal found 6/6$149
Sat 6/229:44 amONT - SJU
2 stops26h 07mFrontier
Deal found 6/7$154

Find flights from Ontario to Luis Munoz Marin Intl within your budget

Customize your flight search to find flights from Ontario to Luis Munoz Marin Intl 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 3,045,324 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$274 - $483

Route

Depart

Return

Price

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Mon 6/24

2 stops11h 12m

San Juan Luis Munoz Marin Intl

Thu 7/4

2 stops17h 12m

$274

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 7/19

2 stops14h 20m

San Juan Luis Munoz Marin Intl

Fri 7/26

2 stops20h 29m

$275

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Mon 6/17

2 stops11h 02m

San Juan Luis Munoz Marin Intl

Tue 6/25

2 stops17h 55m

$277

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Mon 6/17

2 stops14h 25m

San Juan Luis Munoz Marin Intl

Thu 6/20

2 stops17h 16m

$278

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Wed 8/14

2 stops13h 41m

San Juan Luis Munoz Marin Intl

Sat 8/24

2 stops19h 19m

$302

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 9/27

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Tue 10/1

1 stop9h 51m

$327

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 9/6

1 stop12h 17m

San Juan Luis Munoz Marin Intl

Sun 9/15

1 stop12h 52m

$334

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Mon 10/21

2 stops9h 45m

San Juan Luis Munoz Marin Intl

Fri 10/25

3 stops14h 50m

$406

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 9/6

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Fri 9/20

1 stop11h 50m

$483

Flights are sorted by cheapest first

Deals found on 6/7

How far ahead should I book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Luis Munoz Marin Intl. Price data was last updated on May 31, 2024.
The best time to book flights from Ontario to San Juan Luis Munoz Marin Intl Airport is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Luis Munoz Marin Intl. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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.

Temperature and rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature and rainfall totals by month.

SJU

Temperature

77 - 82.4 °F

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, 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 Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated June 7, 2024.
See what other customers who have flown with Delta, JetBlue and American Airlines from Ontario to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

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

Southwest
8.2
Very good
5,912 reviews
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

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
8.1
Very good
9,236 reviews
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

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
10,333 reviews
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

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

JetBlue
7.6
Good
4,300 reviews
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

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
10,686 reviews
Southwest
8.2
Very good
5,912 reviews

Crew

8.7

Food

7.3

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

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 Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to San Juan Luis Munoz Marin Intl. 6 airlines have flights from Ontario to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Ontario to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.

  • Can I find flights from Ontario to San Juan Luis Munoz Marin Intl Airport for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to San Juan Luis Munoz Marin Intl Airport for under $300. The cheapest flight booked recently is on Frontier for just $274, but on average you can expect to pay $310.

  • Are there last-minute flights available from Ontario to San Juan Luis Munoz Marin Intl Airport for under $300?

    There are currently 20+ open flights from Ontario to San Juan Luis Munoz Marin Intl Airport within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip from $274. Other airlines that can offer you cheap pricing are American Airlines, from $302, and United Airlines, from $327. Frontier is currently priced 51% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapest airlines for a one-way flight from Ontario to San Juan Luis Munoz Marin Intl Airport are Frontier ($104), JetBlue ($192), and Southwest ($203).

  • What does ONT to SJU mean?

    ONT and SJU are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to SJU refers to a flight route from Ontario Airport to San Juan Luis Munoz Marin Intl Airport.

  • Can I find deals for flights from Ontario to Luis Munoz Marin Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Ontario to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Ontario to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl that allow pets onboard?

    Many airlines flying from Ontario to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl?

    Yes, you can often find last-minute deals on Ontario to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport flight deals updated?

    The Ontario to San Juan Luis Munoz Marin Intl Airport flight deals you see on this page were last updated on 6/7.

  • What are the most popular airlines that fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

    When booking a flight from Ontario to San Juan Luis Munoz Marin Intl Airport, you may want to consider flying on American Airlines, Alaska Airlines or JetBlue as they are the most popular for this route.

  • What is the cheapest month to book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport (average of $245). Flying from Ontario to San Juan Luis Munoz Marin Intl Airport in March is currently the most expensive (average of $338). 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 Luis Munoz Marin Intl
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 Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Ontario to Luis Munoz Marin Intl. 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 3,045,324 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$243Average$333FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$249Average$626FlexibilityNo cancel feeOn-time62%
DeltaCheapest$312Average$665FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$356Average$607FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$408Average$725FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$472Average$568FlexibilityNo cancel feeOn-time75%
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Search flights from Ontario to Luis Munoz Marin Intl by cabin class

Find flights from Ontario to Luis Munoz Marin Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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