Airport page with IATA code, city context, route ideas and a direct path into Aviokarte24 flight search.
Ontario International Airport uses the IATA code ONT · Ontario, United States. Use Aviokarte24 search above to choose this airport as your departure point, or switch it to the destination field for an inbound trip.
See recently observed low fares using ONT as the exact airport. Switch to inbound fares whenever you want to compare the other direction.
Fare ideas are recently observed and may change. Search results confirm current availability and final price.
Aviokarte24 gets you to the destination. Continue with city information, experiences, airport transfers, connectivity and stays when you need them.
Make the most of your trip with tours, attractions and activities in Ontario. Browse current options below, then complete the booking with Viator.
