Need help booking?
Unpublished phone-only deals available
OKJ to HMY: distance & flight time
Okayama (Okayama Airport) → Seosan (Seosan Air Base)
435 mi
699 km · 378 nm
1h 25m
estimated nonstop flight time
—
time difference · heading west
See live OKJ→HMY fares Phone-only fares on this route — call free
Flight time details
435 miles nonstop takes roughly 1h 25m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OKJ — Okayama Airport · Okayama, Japan
- HMY — Seosan Air Base · Seosan, 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 OKJ
- TAK · Takamatsu Airport39 mi away
- TTJ · Tottori Airport56 mi away
- HIJ · Hiroshima Airport58 mi away
- TKS · Tokushima Airport/JMSDF Air Base61 mi away
Near HMY
- ICN · Incheon International Airport53 mi away
- OSN · Osan Air Base40 mi away
- SWU · Suwon Airport47 mi away
- KUV · Kunsan Air Base56 mi away
Frequently asked questions
How far is OKJ from HMY?
The flight distance from Okayama (OKJ) to Seosan (HMY) is 435 miles (699 km, 378 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKJ to HMY?
A nonstop flight takes about 1h 25m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from OKJ to HMY?
Nonstop service on OKJ–HMY depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 25m nonstop estimate.
What is the cheapest way to fly from OKJ to HMY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKJ–HMY that never appear on search engines, with no booking fees.
Why are some OKJ to HMY fares phone-only?
Consolidator contracts let us sell certain OKJ–HMY tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.