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SDY to GTF: distance & flight time
Sidney (Sidney - Richland Regional Airport) → Great Falls (Great Falls International Airport)
335 mi
539 km · 291 nm
1h 21m
estimated nonstop flight time
Same time
time difference · heading west
See live SDY→GTF fares Phone-only fares on this route — call free
Flight time details
335 miles nonstop takes roughly 1h 21m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SDY — Sidney - Richland Regional Airport · Sidney, United States
- GTF — Great Falls International Airport · Great Falls, 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 SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 mi away
Near GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is SDY from GTF?
The flight distance from Sidney (SDY) to Great Falls (GTF) is 335 miles (539 km, 291 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDY to GTF?
A nonstop flight takes about 1h 21m 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 cheapest way to fly from SDY to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDY–GTF that never appear on search engines, with no booking fees.