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BFI to THQ: distance & flight time
Seattle (Boeing Field King County International Airport) → Tianshui (Tianshui Maijishan Airport)
6,030 mi
9,705 km · 5,240 nm
12h 17m
estimated nonstop flight time
+15h
time difference · heading northwest
See live BFI→THQ fares Phone-only fares on this route — call free
Flight time details
6,030 miles nonstop takes roughly 12h 17m 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
- BFI — Boeing Field King County International Airport · Seattle, United States
- THQ — Tianshui Maijishan Airport · Tianshui, 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 BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Near THQ
- LNL · Longnan Chengzhou Airport53 mi away
- GYU · Guyuan Liupanshan Airport107 mi away
- HZG · Hanzhong Chenggu Airport125 mi away
- IQN · Qingyang Airport131 mi away
Frequently asked questions
How far is BFI from THQ?
The flight distance from Seattle (BFI) to Tianshui (THQ) is 6,030 miles (9,705 km, 5,240 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to THQ?
A nonstop flight takes about 12h 17m 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 Seattle and Tianshui?
Tianshui is 15 hours ahead of Seattle.
What is the cheapest way to fly from BFI to THQ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–THQ that never appear on search engines, with no booking fees.