Need help booking?
Unpublished phone-only deals available
HMY to AST: distance & flight time
Seosan (Seosan Air Base) → Astoria (Astoria Regional Airport)
5,241 mi
8,434 km · 4,554 nm
10h 45m
estimated nonstop flight time
—
time difference · heading northeast
See live HMY→AST fares Phone-only fares on this route — call free
Flight time details
5,241 miles nonstop takes roughly 10h 45m gate to gate, flying northeast. 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
- HMY — Seosan Air Base · Seosan, South Korea
- AST — Astoria Regional Airport · Astoria, 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 HMY
- ICN · Incheon International Airport53 mi away
- OSN · Osan Air Base40 mi away
- SWU · Suwon Airport47 mi away
- KUV · Kunsan Air Base56 mi away
Near AST
- KLS · Southwest Washington Regional Airport47 mi away
- OTK · Tillamook Airport51 mi away
- HQM · Bowerman Airport56 mi away
- CLS · Chehalis Centralia Airport56 mi away
Frequently asked questions
How far is HMY from AST?
The flight distance from Seosan (HMY) to Astoria (AST) is 5,241 miles (8,434 km, 4,554 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HMY to AST?
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 HMY to AST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HMY–AST that never appear on search engines, with no booking fees.