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ALO to OSN: distance & flight time
Waterloo (Waterloo Regional Airport) → Osan (Osan Air Base)
6,400 mi
10,301 km · 5,562 nm
13h 1m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ALO→OSN fares Phone-only fares on this route — call free
Flight time details
6,400 miles nonstop takes roughly 13h 1m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- ALO — Waterloo Regional Airport · Waterloo, United States
- OSN — Osan Air Base · Osan, 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 ALO
- CCY · Northeast Iowa Regional Airport37 mi away
- CID · The Eastern Iowa Airport58 mi away
- MCW · Mason City Municipal Airport63 mi away
- PCD · Prairie Du Chien Municipal Airport72 mi away
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
Frequently asked questions
How far is ALO from OSN?
The flight distance from Waterloo (ALO) to Osan (OSN) is 6,400 miles (10,301 km, 5,562 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALO to OSN?
A nonstop flight takes about 13h 1m 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 time difference between Waterloo and Osan?
Osan is 14 hours ahead of Waterloo.
What is the cheapest way to fly from ALO to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALO–OSN that never appear on search engines, with no booking fees.