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STL to ONO: distance & flight time
St. Louis (St Louis Lambert International Airport) → Ontario (Ontario Municipal Airport)
1,422 mi
2,288 km · 1,235 nm
3h 33m
estimated nonstop flight time
-1h
time difference · heading northwest
See live STL→ONO fares Phone-only fares on this route — call free
Flight time details
1,422 miles nonstop takes roughly 3h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- ONO — Ontario Municipal Airport · Ontario, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 mi away
Frequently asked questions
How far is STL from ONO?
The flight distance from St. Louis (STL) to Ontario (ONO) is 1,422 miles (2,288 km, 1,235 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to ONO?
A nonstop flight takes about 3h 33m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between St. Louis and Ontario?
Ontario is 1 hour behind St. Louis.
What is the cheapest way to fly from STL to ONO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–ONO that never appear on search engines, with no booking fees.