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FSD to RKS: distance & flight time
Sioux Falls (Joe Foss Field Airport) → Rock Springs (Southwest Wyoming Regional Airport)
641 mi
1,032 km · 557 nm
1h 52m
estimated nonstop flight time
-1h
time difference · heading west
See live FSD→RKS fares Phone-only fares on this route — call free
Flight time details
641 miles nonstop takes roughly 1h 52m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- FSD — Joe Foss Field Airport · Sioux Falls, United States
- RKS — Southwest Wyoming Regional Airport · Rock Springs, 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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Near RKS
- FBR · Fort Bridger Airport71 mi away
- VEL · Vernal Regional Airport83 mi away
- LND · Hunt Field86 mi away
- BPI · Miley Memorial Field87 mi away
Frequently asked questions
How far is FSD from RKS?
The flight distance from Sioux Falls (FSD) to Rock Springs (RKS) is 641 miles (1,032 km, 557 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSD to RKS?
A nonstop flight takes about 1h 52m 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 Sioux Falls and Rock Springs?
Rock Springs is 1 hour behind Sioux Falls.
What is the cheapest way to fly from FSD to RKS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSD–RKS that never appear on search engines, with no booking fees.