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OSN to GRR: distance & flight time
Osan (Osan Air Base) → Grand Rapids (Gerald R. Ford International Airport)
6,545 mi
10,533 km · 5,687 nm
13h 18m
estimated nonstop flight time
-13h
time difference · heading northeast
See live OSN→GRR fares Phone-only fares on this route — call free
Flight time details
6,545 miles nonstop takes roughly 13h 18m gate to gate, flying northeast. 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
- GRR — Gerald R. Ford International Airport · Grand Rapids, 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 GRR
- MKG · Muskegon County Airport41 mi away
- BTL · W K Kellogg Airport42 mi away
- AZO · Kalamazoo Battle Creek International Airport45 mi away
- LAN · Capital City Airport48 mi away
Frequently asked questions
How far is OSN from GRR?
The flight distance from Osan (OSN) to Grand Rapids (GRR) is 6,545 miles (10,533 km, 5,687 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to GRR?
A nonstop flight takes about 13h 18m 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 GRR?
Nonstop service on OSN–GRR 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 18m nonstop estimate.
What is the time difference between Osan and Grand Rapids?
Grand Rapids is 13 hours behind Osan.
What is the cheapest way to fly from OSN to GRR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–GRR that never appear on search engines, with no booking fees.
Why are some OSN to GRR fares phone-only?
Consolidator contracts let us sell certain OSN–GRR 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.