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Flights from San Diego to Ontario

San Diego to Ontario | Find Cheap Flight Deals

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.

Frequently Asked Questions

  • When are flight tickets from San Diego (SAN) to Ontario (ONO) the cheapest?

    Airlines adjust prices for flights from San Diego 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 Diego (SAN) to Ontario (ONO) cost?

    According to Trip.com's data, the lowest price is around PHP 644,869.

How to find a cheap flight from San Diego 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 Diego to Ontario. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | San Diego to Ontario

Off-season for travel December
Peak season for travel October
Flight distance 1,254.73 km

More Travel Options

  • Popular Routes to Ontario
  • Popular Airlines to Ontario
  • Popular Flights From San Diego