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FSI to SIA: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Xi\'AN (Xi'an Xiguan Airport)
7,346 mi
11,823 km · 6,384 nm
14h 52m
estimated nonstop flight time
+14h
time difference · heading northwest
See live FSI→SIA fares Phone-only fares on this route — call free
Flight time details
7,346 miles nonstop takes roughly 14h 52m 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
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- 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 FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 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 FSI from SIA?
The flight distance from Fort Sill (FSI) to Xi\'AN (SIA) is 7,346 miles (11,823 km, 6,384 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to SIA?
A nonstop flight takes about 14h 52m 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 FSI to SIA?
Nonstop service on FSI–SIA 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 14h 52m nonstop estimate.
What is the time difference between Fort Sill and Xi\'AN?
Xi\'AN is 14 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to SIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–SIA that never appear on search engines, with no booking fees.
Why are some FSI to SIA fares phone-only?
Consolidator contracts let us sell certain FSI–SIA 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.