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NST to GRK: distance & flight time
Nakhon Si Thammarat (Nakhon Si Thammarat Airport) → Killeen (Robert Gray Army Air Field Airport)
9,458 mi
15,221 km · 8,219 nm
19h 1m
estimated nonstop flight time
-12h
time difference · heading north
See live NST→GRK fares Phone-only fares on this route — call free
Flight time details
9,458 miles nonstop takes roughly 19h 1m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- NST — Nakhon Si Thammarat Airport · Nakhon Si Thammarat, Thailand
- GRK — Robert Gray Army Air Field Airport · Killeen, 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 NST
- URT · Surat Thani Airport69 mi away
- USM · Samui Airport70 mi away
- KBV · Krabi Airport72 mi away
- TST · Trang Airport75 mi away
Near GRK
- HLR · Hood Army Air Field8 mi away
- AUS · Austin Bergstrom International Airport61 mi away
- TPL · Draughon Miller Central Texas Regional Airport26 mi away
- ACT · Waco Regional Airport52 mi away
Frequently asked questions
How far is NST from GRK?
The flight distance from Nakhon Si Thammarat (NST) to Killeen (GRK) is 9,458 miles (15,221 km, 8,219 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NST to GRK?
A nonstop flight takes about 19h 1m 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 Nakhon Si Thammarat and Killeen?
Killeen is 12 hours behind Nakhon Si Thammarat.
What is the cheapest way to fly from NST to GRK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NST–GRK that never appear on search engines, with no booking fees.