Need help booking?
Unpublished phone-only deals available
OSN to SIA: distance & flight time
Osan (Osan Air Base) → Xi\'AN (Xi'an Xiguan Airport)
1,020 mi
1,642 km · 887 nm
2h 41m
estimated nonstop flight time
-1h
time difference · heading west
See live OSN→SIA fares Phone-only fares on this route — call free
Flight time details
1,020 miles nonstop takes roughly 2h 41m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SIA — Xi'an Xiguan Airport · Xi\'AN, China
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 SIA
- XIY · Xi'an Xianyang International Airport22 mi away
- AKA · Ankang Wulipu Airport116 mi away
- YCU · Yuncheng Guangong Airport120 mi away
- IQN · Qingyang Airport130 mi away
Frequently asked questions
How far is OSN from SIA?
The flight distance from Osan (OSN) to Xi\'AN (SIA) is 1,020 miles (1,642 km, 887 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SIA?
A nonstop flight takes about 2h 41m 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 Osan and Xi\'AN?
Xi\'AN is 1 hour behind Osan.
What is the cheapest way to fly from OSN to SIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SIA that never appear on search engines, with no booking fees.