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GRK to YSP: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Marathon (Marathon Airport)
1,362 mi
2,192 km · 1,183 nm
3h 26m
estimated nonstop flight time
+1h
time difference · heading northeast
See live GRK→YSP fares Phone-only fares on this route — call free
Flight time details
1,362 miles nonstop takes roughly 3h 26m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- YSP — Marathon Airport · Marathon, Canada
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 YSP
- YMG · Manitouwadge Airport32 mi away
- YGQ · Geraldton Greenstone Regional Airport76 mi away
- YHN · Hornepayne Municipal Airport78 mi away
- YXZ · Wawa Airport90 mi away
Frequently asked questions
How far is GRK from YSP?
The flight distance from Killeen (GRK) to Marathon (YSP) is 1,362 miles (2,192 km, 1,183 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to YSP?
A nonstop flight takes about 3h 26m 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 Marathon?
Marathon is 1 hour ahead of Killeen.
What is the cheapest way to fly from GRK to YSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–YSP that never appear on search engines, with no booking fees.