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OSN to SPI: distance & flight time
Osan (Osan Air Base) → Springfield (Abraham Lincoln Capital Airport)
6,633 mi
10,675 km · 5,764 nm
13h 28m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→SPI fares Phone-only fares on this route — call free
Flight time details
6,633 miles nonstop takes roughly 13h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SPI — Abraham Lincoln Capital Airport · Springfield, 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 SPI
Frequently asked questions
How far is OSN from SPI?
The flight distance from Osan (OSN) to Springfield (SPI) is 6,633 miles (10,675 km, 5,764 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SPI?
A nonstop flight takes about 13h 28m 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 SPI?
Nonstop service on OSN–SPI 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 28m nonstop estimate.
What is the time difference between Osan and Springfield?
Springfield is 14 hours behind Osan.
What is the cheapest way to fly from OSN to SPI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SPI that never appear on search engines, with no booking fees.
Why are some OSN to SPI fares phone-only?
Consolidator contracts let us sell certain OSN–SPI 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.