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SDY to WYS: distance & flight time
Sidney (Sidney - Richland Regional Airport) → West Yellowstone (Yellowstone Airport)
391 mi
630 km · 340 nm
1h 30m
estimated nonstop flight time
Same time
time difference · heading southwest
See live SDY→WYS fares Phone-only fares on this route — call free
Flight time details
391 miles nonstop takes roughly 1h 30m gate to gate, flying southwest. 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
- WYS — Yellowstone Airport · West Yellowstone, 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 WYS
- BZN · Gallatin Field75 mi away
- JAC · Jackson Hole Airport77 mi away
- LVM · Mission Field77 mi away
- IDA · Idaho Falls Regional Airport94 mi away
Frequently asked questions
How far is SDY from WYS?
The flight distance from Sidney (SDY) to West Yellowstone (WYS) is 391 miles (630 km, 340 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDY to WYS?
A nonstop flight takes about 1h 30m 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 WYS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDY–WYS that never appear on search engines, with no booking fees.