Road trip cost

How Much Does It Cost to Drive From Flagstaff to Aspen?

At 452 miles and roughly 7 hr 18 min of driving, the route from Flagstaff, AZ to Aspen, CO is a long-haul trip. Budget for multiple fuel stops, food, and possibly an overnight stay — gas alone can run well over a hundred dollars depending on your vehicle.

Medium
  • Updated for 2026
  • US avg fuel prices
  • EPA-style MPG
  • EV rates vary by state
  • US units
Distance

452 mi

Driving time

7 hr 18 min

Fuel stops

1

EV charges

1

Route overview452 mi

1 suggested fuel stop

Key takeaway

Plan on about $56 in gas one-way in a 28 MPG sedan, with 1 fuel stop and roughly 7 hr 18 min behind the wheel.

Drive intensity

Medium

Doable in a single day.

Estimate your trip cost

Pre-filled with the FlagstaffAspen distance.

miles
mpg
$/gal

Estimated Trip Cost

$0.00

Per Person

$0.00

Gallons

0.00gal

Total miles: 452 (one way).

How we estimate this trip

Distance
Great-circle distance between city centers × 1.18 road factor, rounded to whole miles.
Fuel cost formula
(miles ÷ MPG) × price per gallon, computed one-way unless noted.
Gas price assumption
Recent US average retail regular gas (AAA-style baseline).
EV charging assumption
Combined MPGe with average US residential electricity rate.
Tolls & weather
Not included — add manually for I-95, I-90 and mountain routes.
Driving time
Estimated at typical highway average speeds; excludes long breaks.

Sources & assumptions

  • EPA fuel economy dataCity / highway / combined MPG and MPGe baselines.
  • U.S. Department of Energy (fueleconomy.gov)Vehicle efficiency and EV range references.
  • AAA gas price trendsRecent national and regional retail fuel averages.
  • EIA electricity ratesAverage residential per-kWh prices used for EV charging.
  • Tax Foundation state gas tax ratesState excise gas-tax rates used to compare fill-up costs on either side of a state line.
  • IIHS state speed limit lawsMaximum posted rural-interstate speed limits by state.

We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.

Fuel cost by vehicle type

Estimated one-way fuel cost at $3.45/gal (US average). Adjust for your local price.

Compact car· 35 MPG · 12.9 gal$44.55
Sedan· 28 MPG · 16.1 gal$55.69
SUV· 22 MPG · 20.5 gal$70.88
Pickup truck· 18 MPG · 25.1 gal$86.63

Cost at different gas prices

Assuming a 28 MPG sedan over the 452-mile route.

Gas at $3.15/gal

$50.85

one way · ~16.1 gal

Gas at $3.45/gal

$55.69

one way · ~16.1 gal

Gas at $3.85/gal

$62.15

one way · ~16.1 gal

Fuel & charging stops

1 fuel stop one-way

A typical 28 MPG sedan with a 12.5-gallon tank covers about 350 miles per fill-up. Plan 1 stop along the way and fuel up before any remote stretches.

1 DC fast-charge for most EVs

Assuming a realistic 230-mile highway range, plan 1 DC fast-charging stop. Tesla Superchargers and Electrify America have strong coverage on most US corridors.

Route personality

Long-distance interstate driveEV-friendly corridorScenic mountain drive

Mountain West driving context

  • Mountain passes can require chains or AWD from November through April — check CDOT/UDOT before departure.
  • Elevation gain reduces gas MPG and EV range by 10–20% on climbs; you recover some on descents.
  • Cell coverage drops in canyons — download offline maps before you go.

City insights

Flagstaff, AZ

  • Flagstaff's elevation can shorten EV range and lower gas MPG on the way in.

Aspen, CO

  • Aspen draws year-round visitors — book parking and lodging ahead in peak weeks.
  • Aspen's elevation can shorten EV range and lower gas MPG on the way in.
  • Winter ski-season weekends bring heavy outbound traffic from Aspen.

Best stops along the way

  • Pick a sit-down meal stop around the 2.5-hour mark to reset focus and avoid drive-thru fatigue.
  • Scenic pull-offs and coastal overlooks add 15–30 min but break up the monotony on tourism corridors.
  • Tesla Superchargers and Electrify America hubs cluster around major interchanges — easy 20-min top-ups.
  • Mountain pass viewpoints make great photo stops — but check brakes before long descents.

Seasonal notes

Winter

Snow, ice and chain-control zones from late November through March — carry an emergency kit.

Summer

Desert highs over 110°F stress engines, tires and EV batteries — drive early or late, never midday.

Recommendations for this route

  • EV-suitable: a 250+ mile EV makes this drive on 1–2 fast charges.
  • AWD or all-terrain tires help in winter; check brake pads before long descents.
  • Split the drive across a meal stop or overnight — fatigue starts hurting reaction time after 5 hours.
  • Run tires at the door-jamb PSI and pre-cool the cabin with AC on low — both add 1–3 MPG.

Is it cheaper to fly or drive?

For one or two people, driving usually wins on cost. Solo travelers with no luggage may find a budget flight cheaper once you add parking and meals.

A one-way drive uses about $56 in gas (28 MPG, $3.45/gal). A typical short domestic flight costs $80–$220 per person plus $30–$60/day for airport parking and any baggage fees.

Weather & best time

Late spring through early fall — winter snow can close passes and add hours to the drive.

  • Mountain passes can see snow or ice from November through April — check road conditions before you leave.

Tolls

Mostly toll-free — you can drive this without a transponder.

Best vehicle

An SUV or all-wheel-drive crossover is ideal — better handling on mountain passes and storage for gear.

Starting your trip in Flagstaff

You'll start in Arizona and end in Colorado. Arizona's state gas tax (about 19.0¢/gal) is lower than Colorado's (about 29.2¢/gal) — top off before you cross into Colorado if your tank allows it. The rural interstate limit is 75 mph on both sides of the state line.

Driving difficulty

Medium · 7 hr 18 min

High — swap drivers every 2–3 hours and consider splitting the drive over a meal stop.

Doable in a single day

Most drivers complete this route in a single day. Leave early to avoid arriving tired in evening traffic.

About the drive from Flagstaff to Aspen

This 452-mile route between Flagstaff, AZ and Aspen, CO is a popular drive in the region. Expect roughly 7 hr 18 min behind the wheel under normal traffic conditions.

Fuel-saving tips

  • Keep your speed near 65 mph — fuel economy drops sharply above 70.
  • Fill up before mountain or desert stretches; remote stations charge a premium.
  • Use GasBuddy or AAA to spot cheap stations along your route before you leave.
  • Use cruise control on flat sections only — long climbs benefit from light, steady throttle.

Frequently asked questions

How long does it take to drive from Flagstaff to Aspen?

The drive is about 452 miles and takes roughly 7 hr 18 min under normal traffic. Add buffer for stops, construction, and rush hour around either city.

How much gas does the trip use?

In a 28 MPG sedan, expect about 16.1 gallons one way. A 22 MPG SUV would use roughly 20.5 gallons.

What's the typical fuel cost?

At the US average of $3.45/gal, a 28 MPG vehicle costs about $55.69 one way. Round trip roughly doubles that. Use the calculator above for your exact MPG and local gas price.

How many fuel or charging stops will I need?

A typical gas sedan needs about 1 fuel stop one way. A modern EV with ~230 miles of highway range needs about 1 DC fast-charge.

Is it cheaper to drive or fly from Flagstaff to Aspen?

For one or two people, driving usually wins on cost. Solo travelers with no luggage may find a budget flight cheaper once you add parking and meals.

What's the best time of year to drive this route?

Late spring through early fall — winter snow can close passes and add hours to the drive.

Does the gas tax change between Flagstaff and Aspen?

You'll start in Arizona and end in Colorado. Arizona's state gas tax (about 19.0¢/gal) is lower than Colorado's (about 29.2¢/gal) — top off before you cross into Colorado if your tank allows it. The rural interstate limit is 75 mph on both sides of the state line.

Best vehicles for this route

Estimated 452-mile fuel cost for each pick at average US prices. Tap any vehicle for a full cost breakdown.

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Reverse drive

Aspen to Flagstaff driving cost

452 mi · 7.3 h

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