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OSN to ALE: distance & flight time
Osan (Osan Air Base) → Alpine (Alpine Casparis Municipal Airport)
6,737 mi
10,843 km · 5,854 nm
13h 41m
estimated nonstop flight time
—
time difference · heading northeast
See live OSN→ALE fares Phone-only fares on this route — call free
Flight time details
6,737 miles nonstop takes roughly 13h 41m 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
- ALE — Alpine Casparis Municipal Airport · Alpine, 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 ALE
- MRF · Marfa Municipal Airport20 mi away
- FST · Fort Stockton Pecos County Airport59 mi away
- PEQ · Pecos Municipal Airport70 mi away
- INK · Winkler County Airport101 mi away
Frequently asked questions
How far is OSN from ALE?
The flight distance from Osan (OSN) to Alpine (ALE) is 6,737 miles (10,843 km, 5,854 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to ALE?
A nonstop flight takes about 13h 41m 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 OSN to ALE?
Nonstop service on OSN–ALE 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 13h 41m nonstop estimate.
What is the cheapest way to fly from OSN to ALE?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–ALE that never appear on search engines, with no booking fees.
Why are some OSN to ALE fares phone-only?
Consolidator contracts let us sell certain OSN–ALE 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.