How far is Roy, UT from Saint George, UT?
The driving distance from Roy, UT to Saint George, UT is about 334.5 miles (538.4 km), with a travel time of about 04h 54m by car.
- The straight-line flight distance is about 292.5 miles (470.7 km).
- For a round trip, plan for roughly 09h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 04h 54m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Millard County, Utah, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Roy and Saint George.
Turn-by-Turn Driving Directions
Step-by-step road directions between Roy and Saint George.
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1
Start on 5600 South
118 m · 8 sec · 5600 South
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2
Take the ramp slight right
1934 ft · 35 sec
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3
Merge slight left onto Veterans Memorial Highway
24.7 mi · 26 min · Veterans Memorial Highway
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4
Keep slight left to continue on Veterans Memorial Highway
8.2 mi · 9 min · Veterans Memorial Highway
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5
Keep slight left to continue on Veterans Memorial Highway
296.5 mi · 4 hr 52 min · Veterans Memorial Highway
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6
Take the exit slight right toward SR 34: Saint George Boulevard
1.3 km · 2 min
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7
Turn left onto University Avenue
2490 ft · 1 min · University Avenue
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8
Turn right onto Trailblazer Boulevard
1.5 km · 2 min · Trailblazer Boulevard
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9
Turn right onto 100 West
70 m · 12 sec · 100 West
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10
Turn right
156 m · 37 sec
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11
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Roy and Saint George.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Veterans Memorial Highway
Keep slight left to continue on Veterans Memorial Highway
296 mi · 04h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Roy and Sunny near Saint George.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Roy to Saint George?
The road trip is about 334.5 miles (538.4 km) and usually takes 04h 54m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Holden is a useful midpoint, sitting about 166.2 miles from Roy and 168.4 miles from Saint George.
How much longer is the road route than the straight-line distance?
The direct path is about 292.5 miles (470.7 km), while the road route adds roughly 42 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 7:12 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $45.98 one way or $91.95 round trip. Estimated CO2 is about 105 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Roy and Sunny near Saint George.
Flight Path Map
This map shows the direct air route between Roy and Saint George. Straight-line distance: 292.5 mi (470.73 km).
#1 Roy
City in Weber County, Utah, United States
| Population | 39,559 |
| Coordinates | 41.1616100, -112.0263300 |
| Altitude | 1384 |
| Country | United States |
#2 Saint George
The most populous city in Washington County, Utah.
| Population | 92,378 |
| Coordinates | 37.1041500, -113.5841200 |
| Altitude | 823 |
| Country | United States |
End: (-113.584121, 37.104063)
Estimated Travel Time
Distance: 538 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 08m |
| 40 mph (64.37 km/h) | 08h 21m |
| 50 mph (80.47 km/h) | 06h 41m |
| 60 mph (96.56 km/h) | 05h 34m |
| 70 mph (112.65 km/h) | 04h 46m |
| 80 mph (129 km/h) | 04h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $45.98 | $91.95 |
| Mid-grade | $4.23 | $49.97 | $99.94 |
| Premium | $4.55 | $53.72 | $107.45 |
| Diesel | $5.41 | $63.92 | $127.83 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Utah · May 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.