Need help booking?
Unpublished phone-only deals available
SEP to ASE: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Aspen (Aspen-Pitkin Co/Sardy Field)
686 mi
1,105 km · 597 nm
1h 58m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SEP→ASE fares Phone-only fares on this route — call free
Flight time details
686 miles nonstop takes roughly 1h 58m gate to gate, flying northwest. 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
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Near ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 mi away
Frequently asked questions
How far is SEP from ASE?
The flight distance from Stephenville (SEP) to Aspen (ASE) is 686 miles (1,105 km, 597 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to ASE?
A nonstop flight takes about 1h 58m 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 Stephenville and Aspen?
Aspen is 1 hour behind Stephenville.
What is the cheapest way to fly from SEP to ASE?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–ASE that never appear on search engines, with no booking fees.