Embarking from Roy, Utah, to Saint George, Utah, this 332.1-mile journey takes approximately 5 hours and 34 minutes. It's a manageable one-day trip, perfect for a single push without needing an overnight stop. You'll primarily navigate Veterans Memorial Highway and Trailblazer Boulevard, with a short segment on I 15 BUS. Expect a fuel cost around $53 for this drive. The route offers a turn-heavy local driving experience, making it feel more connected to the communities you pass through as you travel across the Mountain West region of Utah.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
166.1 miles from Roy, UT
A natural place for your longest stop of the day
, about 2h 46m into the drive
.
Main Roads
Road
Distance
Duration
Veterans Memorial Highway
329.4 mi
5h 27m
Trailblazer Boulevard
0.9 mi
2m
I 15 BUS
0.8 mi
2m
University Avenue
0.5 mi
1m
5600 South
<0.1 mi
<1m
100 West
<0.1 mi
<1m
Longest stretch:
Veterans Memorial Highway
— 329.4 mi, about 5h 27m
Traffic on I-15
Hour-of-day weekday pattern from 266 FHWA count stations on your route.
Peak
4 PM
~5,305 veh/hr typical
Quietest
2 AM
~252 veh/hr
Peak-to-quiet ratio
21.1×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Roy, UT and Saint George, UT.
1
Start on SR 97
385 ft·8 sec·5600 South
2
Take the ramp
0.4 mi·34 sec
3
Merge onto I 15
25 mi·26 min·Veterans Memorial Highway
Use the straight / slight right lanes.
4
Keep slight left at fork onto I 15
8.2 mi·8 min·Veterans Memorial Highway
Use the straight / slight right lanes.
5
Keep slight left at fork onto I 15
296 mi·4 hr 52 min·Veterans Memorial Highway
Use the straight / slight right lanes.
6
Take the exit onto I 15 BUS
0.8 mi·2 min·I 15 BUS
Exit 8Toward SR 34: Saint George BoulevardUse the slight right lane.
7
Turn left onto University Avenue
0.5 mi·1 min·University Avenue
Use the left lane.
8
Turn right onto Trailblazer Boulevard
0.9 mi·2 min·Trailblazer Boulevard
9
Turn right onto 100 West
230 ft·12 sec·100 West
10
Turn right
510 ft·37 sec
11
Arrive at destination
Trip Plan
Given this is a one-day trip of about 5.5 hours, leaving early in the morning from Roy, UT, will give you ample daylight for the drive. With only one recommended stop, you can plan your break strategically along the 329.4-mile stretch of Veterans Memorial Highway. Keep an eye on your fuel levels, as the estimated cost is $53. The turn-heavy nature of this local drive means staying alert and mindful of speed limits through different communities. Enjoy the flexibility of a single-day adventure across Utah's Mountain West region.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 166.1 miles from Roy, UT, or about 2h 46m into the drive.
The longest continuous stretch on this route runs about 329.4 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 73 miles or 1h 15m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 166.1 miles or 2h 46m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 31m
Traffic, exits, and arrival timing usually matter more near Saint George, UT than in the middle of the route.
Before You Leave
+
Open the route before leaving Roy, UT so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Roy, UT
This is one driving day of about 332.1 miles and 5h 34m.
Your first comfortable stop window is around 73 miles from Roy, UT.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Veterans Memorial Highway for about 329.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 0.4 and 330.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.4 mi into trip|~0m in|I 15 / Veterans Memorial Highway
Merge onto I 15 / Veterans Memorial Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
25.1 mi into trip|~27m in|I 15 / Veterans Memorial Highway
Keep slight left at fork onto I 15 / Veterans Memorial Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
33.3 mi into trip|~35m in|I 15 / Veterans Memorial Highway
Keep slight left at fork onto I 15 / Veterans Memorial Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
329.8 mi into trip|~5h 28m in|I 15 BUS
Take the exit onto I 15 BUS toward SR 34: Saint George Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 8
Toward SR 34: Saint George Boulevard
5
330.6 mi into trip|~5h 30m in|University Avenue
Turn left onto University Avenue
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$51.76 one way
$103.53 round trip
$3.96/gal25.4 MPG avg116 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$54.56
$109.12
premium
$4.47
$58.50
$116.99
diesel
$4.80
$62.71
$125.41
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$52
Meals
$25–$50
Total
$77–$102
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 116.2 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $35 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
99.6
1
$34.87
$15.94
Efficient EV
83
0
$29.06
$13.28
EV Truck/SUV
132.8
1
$46.49
$21.25
Gas CO2
116 kg
EV CO2
39 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 17, 2026
Origin
Roy, UT
Evening
in Roy on Saturday
Local time
7:27 PM
MDT
Current temp
95°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
SW 6 mph21% chanceLive forecast
Flood Watch
Flood Watch issued July 16 at 10:33PM MDT until July 18 at 12:00AM MDT by NWS Salt Lake City UT
Destination
Saint George, UT
Evening
in Saint George on Saturday
Local time
7:27 PM
MDT
Current temp
95°F
Mostly Sunny then Chance Showers And Thunderstorms
WNW 2 to 6 mph25% chanceLive forecast
Flood Watch
Flood Watch issued July 16 at 10:33PM MDT until July 18 at 12:00AM MDT by NWS Salt Lake City UT
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
5h 34m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Timpanogos Cave National Monument
National Monument
The visitor center, caves, and cave tours have not yet opened for the 2026 season. Hike your way past stunning vistas to explore a hidden underground world. Taste the thrill of caving as you twist and...
8 mi from route
~20 min detour
$12
near mile 57.3
Caution: Tickets are required to enter Timpanogos Cave
Crowning the Grand Staircase, Cedar Breaks sits at over 10,000 feet and looks down into a half-mile deep geologic amphitheater. Come wander among timeless bristlecone pines, stand in lush meadows of w...
13 mi from route
~32 min detour
$10
near mile 274.9
Follow the paths where people have walked for thousands of years. Gaze up at massive sandstone cliffs of cream, pink, and red that soar into a brilliant blue sky. Experience the tall, stretching walls...
15 mi from route
~37 min detour
$35
near mile 309.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is characterized as a "turn-heavy local drive," suggesting it's not a high-speed interstate cruise. With 0% highway share, you'll be spending your entire 5 hours and 34 minutes on local roads. The longest uninterrupted stretch you'll encounter is 329.4 miles on Veterans Memorial Highway, indicating a long, continuous segment on this primary road before any significant changes. Be prepared for frequent turns and a more engaging driving experience as you navigate through various towns and landscapes.
Only 0% highway — the rest is turn-by-turn surface driving.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 329.4 mi on Veterans Memorial Highway.
How Hard Is This Drive?
5/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.4 miles in near I 15 / Veterans Memorial Highway.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 332.1 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.4 miles (I 15 / Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 25.1 miles (I 15 / Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles (I 15 / Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
St. George is a city in southwestern Utah, on the Utah-Arizona border, known regionally as "Utah's Dixie" (a nickname given to the area for its warm southern Utah climate which was used to grow cotton by early settlers). The city is nestled in a scenic valley of desert vistas in the northeastern Mojave Desert, adjacent to the majestic Pine Valley Mountains.
Top landmarks
•St. George Utah Temple — temple of The Church of Jesus Christ of Latter-day Saints in St. George, Utah, U...
•St. George Opera House — opera house
•Brigham Young Winter Home and Office — historic house in Utah, United States
Doable as a same-day drive at 5h 34m. Total distance: 332.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 34m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (0%). Some complex stretches to watch for.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 329.4 miles on Veterans Memorial Highway. The full list of main roads is in the Roads section above.
Yes — we found about 25 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 25 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.4 miles (I 15 / Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 25.1 miles (I 15 / Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles (I 15 / Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Timpanogos Cave National Monument, Cedar Breaks National Monument and Zion National Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.6 hours each way, a round trip means 11.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Saint George, UT before the return drive.
