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HIO to GRK: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Killeen (Robert Gray Army Air Field Airport)
1,678 mi
2,700 km · 1,458 nm
3h 45m
estimated nonstop flight time
+2h
time difference · heading southeast
See live HIO→GRK fares Phone-only fares on this route — call free
Flight time details
1,678 miles nonstop takes roughly 3h 45m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- HIO — Portland Hillsboro Airport · Hillsboro, United States
- 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 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
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 HIO from GRK?
The flight distance from Hillsboro (HIO) to Killeen (GRK) 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 HIO to GRK?
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 Hillsboro and Killeen?
Killeen is 2 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to GRK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–GRK that never appear on search engines, with no booking fees.