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ISN to SIA: distance & flight time
Williston (Sloulin Field International Airport) → Xi\'AN (Xi'an Xiguan Airport)
6,385 mi
10,275 km · 5,548 nm
12h 59m
estimated nonstop flight time
+13h
time difference · heading northwest
See live ISN→SIA fares Phone-only fares on this route — call free
Flight time details
6,385 miles nonstop takes roughly 12h 59m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 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 ISN from SIA?
The flight distance from Williston (ISN) to Xi\'AN (SIA) is 6,385 miles (10,275 km, 5,548 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to SIA?
A nonstop flight takes about 12h 59m 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 Williston and Xi\'AN?
Xi\'AN is 13 hours ahead of Williston.
What is the cheapest way to fly from ISN to SIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–SIA that never appear on search engines, with no booking fees.