Drive or Fly: Grand Junction, CO to Longmont, 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 GJT–BJC. At 276 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

4h 23m

Distance

276.4 mi

Total Cost

$96

CO2

112 kg

Cost Breakdown

Diesel$61

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 1m

24m in the air

Air Distance

199 mi

Total Cost

$183

CO2

51 kg

Door-to-Door Timeline

Grand Junction, CO → GJT 10m

Check-in & Security 90m

Flight 24m

Arrival & Baggage 30m

BJC → Longmont, CO 27m

Cost Breakdown

Ticket (1 pax @ $128) $128

Rental car (1 day)$55

Airports

Grand Junction, CO GJT — Grand Junction Regional Airport 5 mi, ~10m drive

Longmont, CO BJC — Rocky Mountain Metropolitan Airport 18 mi, ~27m drive

No scheduled flights found

No commercial flights between GJT and BJC. 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

10h 14m

8h 34m on rail

Total Cost

$39

CO2

16 kg

Route

California Zephyr

Door-to-Door Timeline

Grand Junction, CO → Grand Junction Amtrak Station 30m

Boarding 30m

Train ride 514m

Arrival 10m

Denver → Longmont, CO 30m

Cost Breakdown

Ticket (1 pax @ $39) $39

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

Stations

From Grand Junction Amtrak Station 0 mi, ~30m drive

To Denver 0 mi, ~30m 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	4h 23m	3h 1m	10h 14m
Total cost (1 person)	$96	$183	$39
Carbon footprint	112 kg CO₂	51 kg CO₂	16 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 Grand Junction, CO to Longmont, CO with stops, fuel costs, and turn-by-turn directions.