Ontario to St Louis (ONT–SUS) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
ONT–SUS has no scheduled airline service; it is flown by charter / private operators.
On-Time Performance
Other ways to reach St Louis from Ontario
| Metric | ONT→SUS | SNA→SUS | BUR→SUS |
|---|---|---|---|
| Distance from ONT | – | 30 mi | 44 mi |
| Nonstop airlines | – | 5 | 1 |
| Weekly flights | – | 1 | – |
| Flight time | 3h 13m | 3h 19m | 2h 44m |
| Departure OTP | 100% | – | – |
Travel Essentials
ONT: PDT · SUS: CDT
When it's 6:00 PM in Ontario, it's 8:00 PM in St Louis.
ONT–SUS Quick Facts
Frequently Asked Questions
Flights from ONT to SUS
Ontario International Airport (ONT) and Spirit of St Louis Airport (SUS) are connected through multiple connecting hub airports.
ONT to SUS Flight Duration and Schedule
Nonstop flight time from ONT to SUS is about 3 hours 13 minutes gate to gate. The route covers a distance of 1,527 miles (2,458 km).
Connecting Options and Alternatives
Nearby alternative airports include Santa Ana (SNA), Burbank (BUR) and Los Angeles (LAX).