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STS to HLH: distance & flight time
Santa Rosa (Charles M. Schulz Sonoma County Airport) → Ulanhot (Ulanhot Airport)
5,345 mi
8,601 km · 4,644 nm
10h 57m
estimated nonstop flight time
+15h
time difference · heading northwest
See live STS→HLH fares Phone-only fares on this route — call free
Flight time details
5,345 miles nonstop takes roughly 10h 57m 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
- STS — Charles M. Schulz Sonoma County Airport · Santa Rosa, United States
- HLH — Ulanhot Airport · Ulanhot, 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 STS
- SFO · San Francisco International Airport66 mi away
- NOT · Marin County Airport - Gnoss Field29 mi away
- APC · Napa County Airport35 mi away
- UKI · Ukiah Municipal Airport47 mi away
Near HLH
- DBC · Baicheng Chang'an Airport68 mi away
- NDG · Qiqihar Sanjiazi Airport116 mi away
- NZL · Chengjisihan Airport121 mi away
- YIE · Arxan Yi'ershi Airport126 mi away
Frequently asked questions
How far is STS from HLH?
The flight distance from Santa Rosa (STS) to Ulanhot (HLH) is 5,345 miles (8,601 km, 4,644 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STS to HLH?
A nonstop flight takes about 10h 57m 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 Santa Rosa and Ulanhot?
Ulanhot is 15 hours ahead of Santa Rosa.
What is the cheapest way to fly from STS to HLH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STS–HLH that never appear on search engines, with no booking fees.