Need help booking?
Unpublished phone-only deals available
OSN to APN: distance & flight time
Osan (Osan Air Base) → Alpena (Alpena County Regional Airport)
6,448 mi
10,376 km · 5,603 nm
13h 7m
estimated nonstop flight time
-13h
time difference · heading north
See live OSN→APN fares Phone-only fares on this route — call free
Flight time details
6,448 miles nonstop takes roughly 13h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- APN — Alpena County Regional Airport · Alpena, 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 APN
- OSC · Oscoda Wurtsmith Airport44 mi away
- ECA · Iosco County Airport53 mi away
- GLR · Gaylord Regional Airport56 mi away
- DRE · Drummond Island Airport65 mi away
Frequently asked questions
How far is OSN from APN?
The flight distance from Osan (OSN) to Alpena (APN) is 6,448 miles (10,376 km, 5,603 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to APN?
A nonstop flight takes about 13h 7m 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 APN?
Nonstop service on OSN–APN 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 7m nonstop estimate.
What is the time difference between Osan and Alpena?
Alpena is 13 hours behind Osan.
What is the cheapest way to fly from OSN to APN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–APN that never appear on search engines, with no booking fees.
Why are some OSN to APN fares phone-only?
Consolidator contracts let us sell certain OSN–APN 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.