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BUF to SIA: distance & flight time
Buffalo (Buffalo Niagara International Airport) → Xi\'AN (Xi'an Xiguan Airport)
7,072 mi
11,381 km · 6,145 nm
14h 20m
estimated nonstop flight time
+12h
time difference · heading north
See live BUF→SIA fares Phone-only fares on this route — call free
Flight time details
7,072 miles nonstop takes roughly 14h 20m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- BUF — Buffalo Niagara International Airport · Buffalo, 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 BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 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 BUF from SIA?
The flight distance from Buffalo (BUF) to Xi\'AN (SIA) is 7,072 miles (11,381 km, 6,145 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BUF to SIA?
A nonstop flight takes about 14h 20m 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 Buffalo and Xi\'AN?
Xi\'AN is 12 hours ahead of Buffalo.
What is the cheapest way to fly from BUF to SIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BUF–SIA that never appear on search engines, with no booking fees.