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RKS to DUC: distance & flight time
Rock Springs (Southwest Wyoming Regional Airport) → Duncan (Halliburton Field)
778 mi
1,253 km · 676 nm
2h 10m
estimated nonstop flight time
+1h
time difference · heading southeast
See live RKS→DUC fares Phone-only fares on this route — call free
Flight time details
778 miles nonstop takes roughly 2h 10m gate to gate, flying southeast. 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
- RKS — Southwest Wyoming Regional Airport · Rock Springs, United States
- DUC — Halliburton Field · Duncan, 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 RKS
- FBR · Fort Bridger Airport71 mi away
- VEL · Vernal Regional Airport83 mi away
- LND · Hunt Field86 mi away
- BPI · Miley Memorial Field87 mi away
Near DUC
Frequently asked questions
How far is RKS from DUC?
The flight distance from Rock Springs (RKS) to Duncan (DUC) is 778 miles (1,253 km, 676 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RKS to DUC?
A nonstop flight takes about 2h 10m 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 Rock Springs and Duncan?
Duncan is 1 hour ahead of Rock Springs.
What is the cheapest way to fly from RKS to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RKS–DUC that never appear on search engines, with no booking fees.