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GRK to PRM: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Portimao (Portimão Airport)
4,926 mi
7,928 km · 4,281 nm
10h 8m
estimated nonstop flight time
+6h
time difference · heading northeast
See live GRK→PRM fares Phone-only fares on this route — call free
Flight time details
4,926 miles nonstop takes roughly 10h 8m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- PRM — Portimão Airport · Portimao, Portugal
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 PRM
- FAO · Faro Airport35 mi away
- BYJ · Beja Airport / Airbase73 mi away
- CAT · Cascais Airport117 mi away
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)117 mi away
Frequently asked questions
How far is GRK from PRM?
The flight distance from Killeen (GRK) to Portimao (PRM) is 4,926 miles (7,928 km, 4,281 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to PRM?
A nonstop flight takes about 10h 8m 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 Portimao?
Portimao is 6 hours ahead of Killeen.
What is the cheapest way to fly from GRK to PRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–PRM that never appear on search engines, with no booking fees.