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OSN to IAG: distance & flight time
Osan (Osan Air Base) → Niagara Falls (Niagara Falls International Airport)
6,660 mi
10,719 km · 5,788 nm
13h 32m
estimated nonstop flight time
-13h
time difference · heading north
See live OSN→IAG fares Phone-only fares on this route — call free
Flight time details
6,660 miles nonstop takes roughly 13h 32m 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
- IAG — Niagara Falls International Airport · Niagara Falls, 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 IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is OSN from IAG?
The flight distance from Osan (OSN) to Niagara Falls (IAG) is 6,660 miles (10,719 km, 5,788 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to IAG?
A nonstop flight takes about 13h 32m 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 IAG?
Nonstop service on OSN–IAG 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 32m nonstop estimate.
What is the time difference between Osan and Niagara Falls?
Niagara Falls is 13 hours behind Osan.
What is the cheapest way to fly from OSN to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–IAG that never appear on search engines, with no booking fees.
Why are some OSN to IAG fares phone-only?
Consolidator contracts let us sell certain OSN–IAG 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.