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ONT to TSF: distance & flight time
Ontario (Ontario International Airport) → Treviso (Treviso-Sant'Angelo Airport)
6,101 mi
9,818 km · 5,301 nm
12h 26m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→TSF fares Phone-only fares on this route — call free
Flight time details
6,101 miles nonstop takes roughly 12h 26m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- TSF — Treviso-Sant'Angelo Airport · Treviso, Italy
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 TSF
- VCE · Venice Marco Polo Airport12 mi away
- QPA · Padova Airport24 mi away
- AVB · Aviano Air Base33 mi away
- VIC · Vicenza Airport33 mi away
Frequently asked questions
How far is ONT from TSF?
The flight distance from Ontario (ONT) to Treviso (TSF) is 6,101 miles (9,818 km, 5,301 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to TSF?
A nonstop flight takes about 12h 26m 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 Treviso?
Treviso is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to TSF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–TSF that never appear on search engines, with no booking fees.