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GRK to HIO: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Hillsboro (Portland Hillsboro Airport)
1,678 mi
2,700 km · 1,458 nm
3h 45m
estimated nonstop flight time
-2h
time difference · heading northwest
See live GRK→HIO fares Phone-only fares on this route — call free
Flight time details
1,678 miles nonstop takes roughly 3h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- HIO — Portland Hillsboro Airport · Hillsboro, 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 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Frequently asked questions
How far is GRK from HIO?
The flight distance from Killeen (GRK) to Hillsboro (HIO) is 1,678 miles (2,700 km, 1,458 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to HIO?
A nonstop flight takes about 3h 45m 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 Hillsboro?
Hillsboro is 2 hours behind Killeen.
What is the cheapest way to fly from GRK to HIO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–HIO that never appear on search engines, with no booking fees.