Cheap Flights from St Louis to Ontario
Popular Flights from St Louis to Ontario
- Airfare from St Louis to Ottawa from $349 round trip
- Airfare from St Louis to Toronto from $387 round trip
- Airfare from St Louis to London from $596 round trip
- Airfare from St Louis to Thunder Bay from $603 round trip
Did You Know?
- There are 39 connecting cities from St Louis, MO to Ontario.
- The earliest flight from St Louis, MO leaves at 5:29 am.
- Toronto, ON has the most direct flights to Ontario.
- There are 15 direct flights from St Louis to Ontario.
- The shortest flight from St Louis, MO to Ontario is 653 miles.
- Toronto, ON is the most popular connecting city from St Louis, MO to Ontario.
- There are 48 carriers flying into Ontario.
- The longest flight from St Louis, MO to Ontario is 653 miles.
