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STK to ATY: distance & flight time
Sterling (Sterling Municipal Airport) → Watertown (Watertown Regional Airport)
429 mi
690 km · 373 nm
1h 24m
estimated nonstop flight time
+1h
time difference · heading northeast
See live STK→ATY fares Phone-only fares on this route — call free
Flight time details
429 miles nonstop takes roughly 1h 24m 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
- STK — Sterling Municipal Airport · Sterling, United States
- ATY — Watertown Regional Airport · Watertown, 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 STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 mi away
Near ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 mi away
Frequently asked questions
How far is STK from ATY?
The flight distance from Sterling (STK) to Watertown (ATY) is 429 miles (690 km, 373 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to ATY?
A nonstop flight takes about 1h 24m 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 Sterling and Watertown?
Watertown is 1 hour ahead of Sterling.
What is the cheapest way to fly from STK to ATY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–ATY that never appear on search engines, with no booking fees.