Drive or Fly: Greeley, CO to Aspen, CO?

Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.

Driving wins

Medium

No scheduled commercial flights found for DEN–ASE. At 218 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

5h 13m

Distance

218 mi

Total Cost

$83

CO2

88 kg

Cost Breakdown

Diesel$48

Hotel (1 room, 0 nights) $0

Meals (1 pax, 1 day) $35

+ No luggage restrictions or TSA lines

+ Comfortable one-day drive

+ Stop anywhere along the route

+ Have your own car at the destination

+ Likely faster door-to-door than flying

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 26m

17m in the air

Air Distance

141 mi

Total Cost

$181

CO2

36 kg

Door-to-Door Timeline

Greeley, CO → DEN 59m

Check-in & Security 90m

Flight 17m

Arrival & Baggage 30m

ASE → Aspen, CO 10m

Cost Breakdown

Ticket (1 pax @ $126) $126

Rental car (1 day)$55

Airports

Greeley, CO DEN — Denver International Airport 39 mi, ~59m drive

Aspen, CO ASE — Aspen-Pitkin County Airport (Sardy Field) 4 mi, ~10m drive

No scheduled flights found

No commercial flights between DEN and ASE. Flight estimates above are theoretical.

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− No scheduled commercial flights found for this route

− May need a rental car at destination

− Luggage fees and restrictions

− Less flexibility for stops along the way

Train

Amtrak

Door to Door

8h 38m

5h 50m on rail

Total Cost

$25

CO2

7 kg

Route

California Zephyr

Door-to-Door Timeline

Greeley, CO → Denver 73m

Boarding 30m

Train ride 350m

Arrival 10m

Glenwood Springs → Aspen, CO 55m

Cost Breakdown

Ticket (1 pax @ $25) $25

Estimated based on distance. Check amtrak.com for current prices.

Stations

From Denver 49 mi, ~73m drive

To Glenwood Springs 37 mi, ~55m drive

Service

Direct

Frequency

~1/week

+ Spacious seating with legroom and power outlets

+ Walk around freely during the trip

+ No driving fatigue — relax or work en route

+ Much lower carbon footprint than driving or flying

− Limited schedule — about 1 trips per week

− Amtrak delays can be unpredictable

− Need transportation to/from station

− Less flexibility than driving

At a Glance

	Drive	Fly	Train
Door-to-door time	5h 13m	3h 26m	8h 38m
Total cost (1 person)	$83	$181	$25
Carbon footprint	88 kg CO₂	36 kg CO₂	7 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	Data unavailable

Drive data: OSRM routing, EIA fuel prices

Flight data: Statistical estimate

Airports: OurAirports

Transit: Amtrak GTFS — fares estimated

Confidence: Medium — airports identified, fares estimated

Costs are estimates. Actual flight prices vary by airline, date, and booking time. Drive costs based on OSRM routing, EIA fuel prices. Computed Apr 12, 2026.

Decided to drive? See the full trip plan from Greeley, CO to Aspen, CO with stops, fuel costs, and turn-by-turn directions.