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STS to HMY: distance & flight time
Santa Rosa (Charles M. Schulz Sonoma County Airport) → Seosan (Seosan Air Base)
5,621 mi
9,046 km · 4,884 nm
11h 29m
estimated nonstop flight time
—
time difference · heading northwest
See live STS→HMY fares Phone-only fares on this route — call free
Flight time details
5,621 miles nonstop takes roughly 11h 29m gate to gate, flying northwest. 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
- STS — Charles M. Schulz Sonoma County Airport · Santa Rosa, United States
- 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 STS
- SFO · San Francisco International Airport66 mi away
- NOT · Marin County Airport - Gnoss Field29 mi away
- APC · Napa County Airport35 mi away
- UKI · Ukiah Municipal Airport47 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 STS from HMY?
The flight distance from Santa Rosa (STS) to Seosan (HMY) is 5,621 miles (9,046 km, 4,884 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STS to HMY?
A nonstop flight takes about 11h 29m 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 cheapest way to fly from STS to HMY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STS–HMY that never appear on search engines, with no booking fees.