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TNN to GRF: distance & flight time
Tainan (Tainan Airport) → Fort Lewis (Gray Army Air Field)
6,223 mi
10,015 km · 5,408 nm
12h 40m
estimated nonstop flight time
-15h
time difference · heading northeast
See live TNN→GRF fares Phone-only fares on this route — call free
Flight time details
6,223 miles nonstop takes roughly 12h 40m 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
- TNN — Tainan Airport · Tainan, Taiwan
- GRF — Gray Army Air Field · Fort Lewis, 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 TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 mi away
Near GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 mi away
Frequently asked questions
How far is TNN from GRF?
The flight distance from Tainan (TNN) to Fort Lewis (GRF) is 6,223 miles (10,015 km, 5,408 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TNN to GRF?
A nonstop flight takes about 12h 40m 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 Tainan and Fort Lewis?
Fort Lewis is 15 hours behind Tainan.
What is the cheapest way to fly from TNN to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TNN–GRF that never appear on search engines, with no booking fees.