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ONO to ICN: distance & flight time
Ontario (Ontario Municipal Airport) → Seoul (Incheon International Airport)
5,551 mi
8,934 km · 4,824 nm
11h 21m
estimated nonstop flight time
+15h
time difference · heading northwest
See live ONO→ICN fares Phone-only fares on this route — call free
Flight time details
5,551 miles nonstop takes roughly 11h 21m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- ONO — Ontario Municipal Airport · Ontario, United States
- ICN — Incheon International Airport · Seoul, South Korea
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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 mi away
Near ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Frequently asked questions
How far is ONO from ICN?
The flight distance from Ontario (ONO) to Seoul (ICN) is 5,551 miles (8,934 km, 4,824 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to ICN?
A nonstop flight takes about 11h 21m 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 Seoul?
Seoul is 15 hours ahead of Ontario.
What is the cheapest way to fly from ONO to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–ICN that never appear on search engines, with no booking fees.