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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

Flights
Airline
Lowest Price
WestJet, US Airways, Delta, United, Alaska, Air Canada, American
$421
Air Canada, WestJet, United
$576
Alaska, United, Delta, US Airways, American, WestJet, Air Canada
$469
Delta, WestJet, United, Air Canada
$496
WestJet, Air Canada
$1137
Air Canada, United
$1148
Air Canada
$1259
Cheap Flights from San Diego to Ontario - from $421 Round trip from SAN to ON