Need help booking?
Unpublished phone-only deals available
GMP to ONO: distance & flight time
Seoul (Gimpo International Airport) → Ontario (Ontario Municipal Airport)
5,534 mi
8,907 km · 4,809 nm
11h 19m
estimated nonstop flight time
-15h
time difference · heading northeast
See live GMP→ONO fares Phone-only fares on this route — call free
Flight time details
5,534 miles nonstop takes roughly 11h 19m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- GMP — Gimpo International Airport · Seoul, South Korea
- ONO — Ontario Municipal Airport · Ontario, United States
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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 mi away
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
Frequently asked questions
How far is GMP from ONO?
The flight distance from Seoul (GMP) to Ontario (ONO) is 5,534 miles (8,907 km, 4,809 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to ONO?
A nonstop flight takes about 11h 19m 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 Seoul and Ontario?
Ontario is 15 hours behind Seoul.
What is the cheapest way to fly from GMP to ONO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–ONO that never appear on search engines, with no booking fees.