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Flights from San Juan to Ontario

Cheap flight deals from San Juan to Ontario

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | San Juan to Ontario

Cheapest one-way flight price Rp 2,356,327
Cheapest round-trip ticket price Rp 8,399,240
Off-season for travel December
Peak season for travel November
Flight distance 5,374.08 km
Popular airline Jetblue Airways

When is the cheapest time to fly from San Juan to Ontario?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights
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  • 8 15
  • 15 22
  • 22 29

  • Jul

    29 6
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from San Juan (SJU) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from San Juan to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from San Juan (SJU) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around Rp 5,822,717.

How to find a cheap flight from San Juan to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Juan to Ontario. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest San Juan to Ontario ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from San Juan to Ontario for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 2356328 for a one-way ticket on Sat, Jun 14.
2
Compare cheap San Juan to Ontario flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from San Juan to Ontario. The most affordable airline currently operating on this route is Spirit Airlines.
3
Set up a Price Alert to track fare drops.
Set up a Price Alert for your San Juan to Ontario route to track ticket prices effortlessly—no need to check manually every day.
4
Don't miss out on cheap San Juan to Ontario flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
5
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
6
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from San Juan to Ontario to access exclusive deals just for you.

Find Cheap Flights & Deals on Trip.com

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