For those looking for a vacation to Ontario, CA, look no further. Count on eDreams to provide great offers on air tickets among a selection of cheap flights. Our quick search engines combined with a vast selection of standard and low cost airlines will surely make booking a holiday simple. All you need to do is indicate your desired travel dates into our search, decide which departure time is most convenient, choose from direct or connecting flights, and select other options including hotel and car rental to complete your holiday booking. In just a few simple steps, you are on your way to Ontario, CA!