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ONT to KTW: distance & flight time
Ontario (Ontario International Airport) → Katowice (Katowice International Airport)
6,027 mi
9,699 km · 5,237 nm
12h 17m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→KTW fares Phone-only fares on this route — call free
Flight time details
6,027 miles nonstop takes roughly 12h 17m 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
- KTW — Katowice International Airport · Katowice, Poland
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 KTW
- KRK · Kraków John Paul II International Airport41 mi away
- OSR · Ostrava Leos Janáček Airport69 mi away
- LCJ · Łódź Władysław Reymont Airport87 mi away
- ILZ · Žilina Airport88 mi away
Frequently asked questions
How far is ONT from KTW?
The flight distance from Ontario (ONT) to Katowice (KTW) is 6,027 miles (9,699 km, 5,237 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to KTW?
A nonstop flight takes about 12h 17m 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 Katowice?
Katowice is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to KTW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–KTW that never appear on search engines, with no booking fees.