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GRK to ATH: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Athens (Eleftherios Venizelos International Airport)
6,371 mi
10,253 km · 5,536 nm
12h 57m
estimated nonstop flight time
+8h
time difference · heading northeast
See live GRK→ATH fares Phone-only fares on this route — call free
Flight time details
6,371 miles nonstop takes roughly 12h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- ATH — Eleftherios Venizelos International Airport · Athens, Greece
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 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
Near ATH
- HEW · Athen Helenikon Airport12 mi away
- PKH · Porto Cheli Airport62 mi away
- JSY · Syros Airport65 mi away
- SKU · Skiros Airport77 mi away
Frequently asked questions
How far is GRK from ATH?
The flight distance from Killeen (GRK) to Athens (ATH) is 6,371 miles (10,253 km, 5,536 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to ATH?
A nonstop flight takes about 12h 57m 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 Killeen and Athens?
Athens is 8 hours ahead of Killeen.
What is the cheapest way to fly from GRK to ATH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–ATH that never appear on search engines, with no booking fees.