Flights from St. Louis to Ontario

Our cheapest offers for flights from St. Louis to Ontario

Here you can compare cheap flights from St. Louis (STL) to Ontario (ONT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Ontario. Prices and availability may change at any time.

Please use our search to find current cheap offers for the following route: from St. Louis (STL) to Ontario (ONT)
You can also change your filters (Departure airport: St. Louis (STL), Destination airport: Ontario (ONT)) or look for alternative cheap flights.

Important flight information

Flight information: St. Louis - Ontario

Flight duration min. 05:45 / max. 05:50
Return flight duration min. 04:55/ max. 09:10
Distance 2485 km
Flights per week 2
Departure airport Airport St. Louis - Lambert International Airport (STL)
Arrival airport Airport Ontario-CA (ONT)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Ontario
Flight destinations with a similar price