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RIL to DUC: distance & flight time
Rifle (Garfield County Regional Airport) → Duncan (Halliburton Field)
642 mi
1,033 km · 558 nm
1h 52m
estimated nonstop flight time
+1h
time difference · heading southeast
See live RIL→DUC fares Phone-only fares on this route — call free
Flight time details
642 miles nonstop takes roughly 1h 52m 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
- RIL — Garfield County Regional Airport · Rifle, 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 RIL
- EGE · Eagle County Regional Airport44 mi away
- ASE · Aspen-Pitkin Co/Sardy Field50 mi away
- GJT · Grand Junction Regional Airport51 mi away
- HDN · Yampa Valley Airport71 mi away
Near DUC
Frequently asked questions
How far is RIL from DUC?
The flight distance from Rifle (RIL) to Duncan (DUC) is 642 miles (1,033 km, 558 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIL to DUC?
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 Rifle and Duncan?
Duncan is 1 hour ahead of Rifle.
What is the cheapest way to fly from RIL to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIL–DUC that never appear on search engines, with no booking fees.