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NUQ to SIA: distance & flight time
Mountain View (Moffett Federal Airfield) → Xi\'AN (Xi'an Xiguan Airport)
6,488 mi
10,441 km · 5,638 nm
13h 11m
estimated nonstop flight time
+15h
time difference · heading northwest
See live NUQ→SIA fares Phone-only fares on this route — call free
Flight time details
6,488 miles nonstop takes roughly 13h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- NUQ — Moffett Federal Airfield · Mountain View, 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 NUQ
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 NUQ from SIA?
The flight distance from Mountain View (NUQ) to Xi\'AN (SIA) is 6,488 miles (10,441 km, 5,638 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NUQ to SIA?
A nonstop flight takes about 13h 11m 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 Mountain View and Xi\'AN?
Xi\'AN is 15 hours ahead of Mountain View.
What is the cheapest way to fly from NUQ to SIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NUQ–SIA that never appear on search engines, with no booking fees.