Are you excited for an amazing trip from Belfast to Ontario, CA? You are in the right place! If you need a little getaway to see a loved one or a comfortable flight for your business trip, the best deal prices and airline carriers are a click away from you. You either are looking for a cheap flight or are in a hurry to find a last-minute ticket, no worries! eDreams will take care of everything you need for a perfect vacation in Ontario, CA. You will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. Don´t forget to book a hotel and choose a car for your perfect trip as a package. Choose the best-suited flight and fasten your seatbelt, we are flying!