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ONT to SJY: distance & flight time
Ontario (Ontario International Airport) → Seinäjoki / Ilmajoki (Seinäjoki Airport)
5,403 mi
8,695 km · 4,695 nm
11h 4m
estimated nonstop flight time
+10h
time difference · heading north
See live ONT→SJY fares Phone-only fares on this route — call free
Flight time details
5,403 miles nonstop takes roughly 11h 4m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- SJY — Seinäjoki Airport · Seinäjoki / Ilmajoki, Finland
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 SJY
- KHJ · Kauhajoki Airport21 mi away
- KAU · Kauhava Airport31 mi away
- VAA · Vaasa Airport42 mi away
- KOK · Kokkola-Pietarsaari Airport72 mi away
Frequently asked questions
How far is ONT from SJY?
The flight distance from Ontario (ONT) to Seinäjoki / Ilmajoki (SJY) is 5,403 miles (8,695 km, 4,695 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to SJY?
A nonstop flight takes about 11h 4m 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 Seinäjoki / Ilmajoki?
Seinäjoki / Ilmajoki is 10 hours ahead of Ontario.
What is the cheapest way to fly from ONT to SJY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–SJY that never appear on search engines, with no booking fees.