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SEA to HMY: distance & flight time
Seattle (Seattle Tacoma International Airport) → Seosan (Seosan Air Base)
5,242 mi
8,436 km · 4,555 nm
10h 45m
estimated nonstop flight time
—
time difference · heading northwest
See live SEA→HMY fares Phone-only fares on this route — call free
Flight time details
5,242 miles nonstop takes roughly 10h 45m 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
- SEA — Seattle Tacoma International Airport · Seattle, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 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 SEA from HMY?
The flight distance from Seattle (SEA) to Seosan (HMY) is 5,242 miles (8,436 km, 4,555 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to HMY?
A nonstop flight takes about 10h 45m 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 SEA to HMY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–HMY that never appear on search engines, with no booking fees.