Title: Cheap Flights from Ontario (ONT) to San Juan (SJU) - Expedia.ca ![Condado Beach which includes general coastal views and a coastal town](https://images.trvl-media.com/place/6082351/ae98bc8e-4169-4654-a33a-bab2e7b17b7e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6082351/ae98bc8e-4169-4654-a33a-bab2e7b17b7e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Ontario (ONT) to San Juan (SJU) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Luis Munoz Marin Intl. Airport (SJU) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![JetBlue Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ont,to:sju,departure:12/11/2025TANYT&leg2=from:sju,to:ont,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Ontario (ONT) to San Juan (SJU) ### September is typically the cheapest month to fly From CA $388 - CA $771 per traveller. Flight from Ontario to San Juan (ONT - SJU) route information | Origin airport | Los Angeles - Ontario Intl. | | --- | --- | | Destination airport | Luis Munoz Marin Intl. | | Distance | 5337 km | ## Los Angeles to San Juan Flights **The easy way to book your flights from Ontario to San Juan**  With Expedia, it’s simple to find and book flights to San Juan from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Luis Munoz Marin Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to San Juan today, tomorrow, or this week.   **Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Luis Munoz Marin Intl., SJU**  Sort your search results by price to find great deals on your flight from Ontario to San Juan—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Juan from Ontario currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to San Juan   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to San Juan from Ontario**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Juan with Expedia today. ## Frequently asked questions ### How much is a flight from ONT to SJU? > Pack your bags, because round-trip flights between ONT and SJU start from . That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Ontario Airport to Luis Munoz Marin Intl. Airport (SJU)? > We understand that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Ontario Airport to SJU that have flexible change policies? > Use our "No change fees" filter to find flexible travel options for your flight from Ontario Airport to Luis Munoz Marin Intl. Airport (SJU). This allows you to snag a low rate ahead of time and still have the freedom to reschedule without any additional fees. You'll just need to pay the difference in fare. ### How many hours is the flight from ONT to SJU? > Lasting around 7 hours and 37 minutes, the flight between Los Angeles - Ontario Intl. Airport (ONT) and Luis Munoz Marin Intl. Airport (SJU) is a great opportunity to do some last-minute planning. Why not use the time to read up on what to do in Carolina? ### How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Isla Verde Intl. Airport? > The distance is around 5,400 kilometres. Sleep mask? Check. Spare socks? Double check. You'd be wise to pack all the travel comforts for this long-haul Ontario to Carolina flight. ### Which airlines fly direct from ONT to Luis Munoz Marin Intl. Airport (SJU)? > Unfortunately, there are no airlines that fly direct between Ontario Airport and Isla Verde Intl. Airport. You'll need to book a flight with at least one stop. ### Are Los Angeles - Ontario Intl. Airport (ONT) to Isla Verde Intl. Airport flight tickets cheaper when they're purchased at the last minute? > It is possible to nab a fantastic last-minute deal from Los Angeles - Ontario Intl. Airport (ONT) to SJU, but it's also possible to miss out altogether! As many airlines advertise prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest assured you're always getting the latest offers. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars ### Lodging - [5 Star Hotels in Isla Verde](https://www.expedia.ca/5Star-Isla-Verde-San-Juan-Hotels.s50-n6139938-0.Travel-Guide-Filter-Hotels) - [Hotels near Balneario de Carolina](https://www.expedia.ca/Balneario-De-Carolina-Hotels.0-l553248635930543146-0.Travel-Guide-Filter-Hotels) - [Cangrejo Arriba Hotels](https://www.expedia.ca/Cangrejo-Arriba-San-Juan-Hotels.0-n553248635976173777-0.Travel-Guide-Filter-Hotels) - [All Inclusive Resorts and in Isla Verde](https://www.expedia.ca/Isla-Verde-San-Juan-Hotels-All-Inclusive-Hotel.0-n6139938-0-tAllInclusiveHotel.Travel-Guide-Filter-Hotels) - [Beach Hotel Hotels in Isla Verde](https://www.expedia.ca/Isla-Verde-San-Juan-Hotels-Beach-Hotel.0-n6139938-0-tBeachHotel.Travel-Guide-Filter-Hotels) - [Cheap Hotels in Isla Verde](https://www.expedia.ca/Isla-Verde-San-Juan-Hotels-Cheap-Hotels.0-n6139938-0-tCheapHotels.Travel-Guide-Filter-Hotels) - 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