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OSN to HAF: distance & flight time
Osan (Osan Air Base) → Half Moon Bay (Half Moon Bay Airport)
5,638 mi
9,074 km · 4,900 nm
11h 31m
estimated nonstop flight time
—
time difference · heading northeast
See live OSN→HAF fares Phone-only fares on this route — call free
Flight time details
5,638 miles nonstop takes roughly 11h 31m 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
- OSN — Osan Air Base · Osan, South Korea
- HAF — Half Moon Bay Airport · Half Moon Bay, 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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Near HAF
- SFO · San Francisco International Airport10 mi away
- SQL · San Carlos Airport14 mi away
- OAK · Metropolitan Oakland International Airport21 mi away
- PAO · Palo Alto Airport of Santa Clara County21 mi away
Frequently asked questions
How far is OSN from HAF?
The flight distance from Osan (OSN) to Half Moon Bay (HAF) is 5,638 miles (9,074 km, 4,900 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to HAF?
A nonstop flight takes about 11h 31m 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 OSN to HAF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–HAF that never appear on search engines, with no booking fees.