2026 Guide on Driving from Salt Lake City, UT to Denver CO: Fuel, EV Charging, and Toll Road Costs

Cost of Driving from Salt Lake City UT to Denver CO in 2026

For this one, the numbers work in your favor. Salt Lake City to Denver runs about 520-525 miles via I-70, roughly 8 hours of driving with no significant tolls the entire way — Colorado’s E-470 loop near Denver is optional and easy to avoid if you’re coming in from the west on I-70. Gas is the only real line item, and Rocky Mountain states have been running cheaper than the national average all year: Colorado’s been sitting around $3.75-3.90/gallon while the national number sits closer to $4.15.

For a sedan getting 30 mpg, that’s roughly 17-18 gallons for $65-70; a midsize SUV at 24 mpg runs closer to $80-85; a truck or larger SUV at 18 mpg lands around $105-110.

One thing the mpg math doesn’t fully capture: this route climbs to 11,158 feet at the Eisenhower Tunnel, and sustained mountain climbing burns noticeably more fuel than flat highway driving — expect your real mileage to run 10-15% worse than your car’s rated highway number, especially in either direction of that pass.

Add lodging only if you’re stopping overnight (most drivers do this in a single day), food for one day on the road at $30-50, and maybe $20 for altitude-adjustment stops if you’re not used to elevation — people genuinely do get short of breath or lightheaded crossing the pass. All-in for a one-day drive: roughly $90-150 for a sedan, $130-190 for an SUV, tolls included because there simply aren’t any worth worrying about on this route.

Tolls Guide From Salt Lake City UT to Denver CO in 2026

For a 2026 drive from Salt Lake City, Utah, to Denver, Colorado, you can generally complete the trip without paying any mandatory tolls if you follow the standard interstate route and stay in the regular general-purpose lanes. The route through Utah and Wyoming, typically using major highways such as I-80 and I-76, does not require regular toll payments. However, after reaching the Denver metropolitan area, you may encounter optional Colorado Express Lanes or alternative toll facilities. These are not necessary for completing the trip, as free general-purpose lanes remain available.

If you voluntarily use an Express Lane, the toll can vary depending on the location, time of day and traffic conditions; drivers without an ExpressToll account may also pay a higher License Plate Toll rate. Therefore, for most travelers driving the normal route from Salt Lake City to Denver, the expected toll cost in 2026 can be $0.

EV Charging Cost Vs Fuel Cost/Gas Cost from Salt Lake City UT to Denver CO in 2026

For the roughly 520-mile trip between Salt Lake City and Denver (via I-80 E or I-70 E), public EV fast charging and gasoline fuel costs are relatively close, but an EV running partly on a cheap home charge still holds a modest price advantage.

The “Home Start” Advantage: If you start with a 100% charge from home in Salt Lake City (roughly $9–$11 for a 75–80 kWh pack), you only need 2–3 public fast-charging stops along I-80 (e.g., Evanston, Rock Springs, Rawlins) or I-70 (Grand Junction, Glenwood Springs, Silverthorne), cutting down the total one-way spend significantly.

Mountain Elevations & Cold: Climbing passes like Vail Pass (10,662 ft), the Eisenhower Tunnel (11,158 ft) on I-70, or fighting fierce Wyoming crosswinds on I-80 will drop EV highway efficiency from 3.5–3.8 mi/kWh down to ~2.8–3.0 mi/kWh.

Network Pricing: Commercial DC fast-charging along rural mountain corridors (Electrify America, EVgo, Tesla Superchargers) typically commands peak on-peak rates of $0.42 to $0.48/kWh. If you rely exclusively on commercial chargers without starting full, energy costs essentially reach parity with a fuel-efficient gas car.

Cost Breakdown by Fuel Grade

Regular: ~$81 – $87
Mid-Grade: ~$88 – $94
Premium: ~$94 – $100
Diesel: ~$102 – $109

How do I save money during road trip from Salt Lake City UT to Denver CO in 2026

The good news is that you do not need to spend a fortune along the way. One of the easiest ways to save money is to plan your fuel stops before starting the trip.

Fuel prices can vary considerably between towns, so avoid filling up simply because you see the first gas station. Keeping your tires properly inflated, avoiding unnecessary luggage and maintaining a steady highway speed can also help your vehicle use less fuel during the journey.

Food is another area where road-trip expenses can quickly add up. Instead of stopping for every meal at highway restaurants or convenience stores, consider packing snacks, water and a few simple meals before leaving Salt Lake City. Not only can this save money, but it also gives you more flexibility to stop and enjoy scenic locations along the route. If your schedule allows, planning your trip efficiently enough to reach Denver without an overnight hotel stay can further reduce your total travel costs.

Keep an eye on optional driving expenses as you approach the Denver area. You can usually avoid paying extra by staying in the regular highway lanes instead of using optional Express Lanes. A little planning before departure—checking fuel prices, packing food and choosing your route carefully—can make the Salt Lake City to Denver drive both an enjoyable adventure and a budget-friendly road trip.

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Driving Time/Driving Duration

Do you have a question; How long is the drive from Salt Lake City to Denver, CO? The drive from Salt Lake City, Utah, to Denver, Colorado typically takes around 8 to 9 hours of driving time, depending on your exact route, traffic, weather and stops along the way. The distance is approximately 520 miles (837 km).

For a road trip, it is wise to allow 9 to 10 hours overall once you include fuel, food and rest stops. Winter weather in Wyoming and Colorado can also significantly increase travel time.