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ONT to OSP: distance & flight time
Ontario (Ontario International Airport) → Slupsk (Redzikowo Air Base)
5,754 mi
9,259 km · 5,000 nm
11h 45m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→OSP fares Phone-only fares on this route — call free
Flight time details
5,754 miles nonstop takes roughly 11h 45m 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
- OSP — Redzikowo Air Base · Slupsk, 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 OSP
- GDN · Gdańsk Lech Wałęsa Airport55 mi away
- QYD · Oksywie Military Air Base57 mi away
- RNN · Bornholm Airport102 mi away
- BZG · Bydgoszcz Ignacy Jan Paderewski Airport102 mi away
Frequently asked questions
How far is ONT from OSP?
The flight distance from Ontario (ONT) to Slupsk (OSP) is 5,754 miles (9,259 km, 5,000 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to OSP?
A nonstop flight takes about 11h 45m 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 Slupsk?
Slupsk is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to OSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–OSP that never appear on search engines, with no booking fees.