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ONT to STJ: distance & flight time
Ontario (Ontario International Airport) → Rosecrans (Rosecrans Memorial Airport)
1,310 mi
2,108 km · 1,138 nm
3h 19m
estimated nonstop flight time
+2h
time difference · heading northeast
See live ONT→STJ fares Phone-only fares on this route — call free
Flight time details
1,310 miles nonstop takes roughly 3h 19m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- STJ — Rosecrans Memorial Airport · Rosecrans, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near STJ
- FLV · Sherman Army Air Field28 mi away
- MCI · Kansas City International Airport34 mi away
- MKC · Charles B. Wheeler Downtown Airport48 mi away
- LWC · Lawrence Municipal Airport55 mi away
Frequently asked questions
How far is ONT from STJ?
The flight distance from Ontario (ONT) to Rosecrans (STJ) is 1,310 miles (2,108 km, 1,138 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to STJ?
A nonstop flight takes about 3h 19m 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 Ontario and Rosecrans?
Rosecrans is 2 hours ahead of Ontario.
What is the cheapest way to fly from ONT to STJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–STJ that never appear on search engines, with no booking fees.