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LHW to SEA: distance & flight time
Lanzhou (Lanzhou Zhongchuan Airport) → Seattle (Seattle Tacoma International Airport)
5,979 mi
9,623 km · 5,196 nm
12h 11m
estimated nonstop flight time
-15h
time difference · heading northeast
See live LHW→SEA fares Phone-only fares on this route — call free
Flight time details
5,979 miles nonstop takes roughly 12h 11m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- LHW — Lanzhou Zhongchuan Airport · Lanzhou, China
- SEA — Seattle Tacoma International Airport · Seattle, United States
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 LHW
- XNN · Xining Caojiabu Airport88 mi away
- ZHY · Zhongwei Shapotou Airport112 mi away
- GXH · Gannan Xiahe Airport130 mi away
- GYU · Guyuan Liupanshan Airport148 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is LHW from SEA?
The flight distance from Lanzhou (LHW) to Seattle (SEA) is 5,979 miles (9,623 km, 5,196 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHW to SEA?
A nonstop flight takes about 12h 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 Lanzhou and Seattle?
Seattle is 15 hours behind Lanzhou.
What is the cheapest way to fly from LHW to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHW–SEA that never appear on search engines, with no booking fees.