Need help booking?
Unpublished phone-only deals available
ROI to GRK: distance & flight time
Roi Et (Roi Et Airport) → Killeen (Robert Gray Army Air Field Airport)
8,875 mi
14,283 km · 7,712 nm
17h 52m
estimated nonstop flight time
-12h
time difference · heading northeast
See live ROI→GRK fares Phone-only fares on this route — call free
Flight time details
8,875 miles nonstop takes roughly 17h 52m gate to gate, flying northeast. 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
- ROI — Roi Et Airport · Roi Et, 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 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 ROI from GRK?
The flight distance from Roi Et (ROI) to Killeen (GRK) is 8,875 miles (14,283 km, 7,712 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to GRK?
A nonstop flight takes about 17h 52m 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 Roi Et and Killeen?
Killeen is 12 hours behind Roi Et.
What is the cheapest way to fly from ROI to GRK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–GRK that never appear on search engines, with no booking fees.