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Cheap Flights from San Diego to Ontario

Did You Know?

  • There are 48 carriers flying into Ontario.
  • The earliest flight from San Diego, CA leaves at 6:15 am.
  • Toronto, ON has the most direct flights to Ontario.
  • The most popular destination from San Diego, CA is Los Angeles International.
  • There are 28 connecting cities from San Diego, CA to Ontario.
  • Calgary, AB is the most popular connecting city from San Diego, CA to Ontario.

Cheap International Flights from San Diego - SAN

Cheap Flights from San Diego to Ontario - Airfare Search for tickets from SAN to ON