How far is Garland, TX from Monahans, TX?
The driving distance from Garland, TX to Monahans, TX is about 538.1 miles (866 km), with a travel time of about 09h 29m by car.
- The straight-line flight distance is about 496.8 miles (799.5 km).
- For a round trip, plan for roughly 18h 58m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
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 09h 29m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Mostly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Garland and Monahans.
Turn-by-Turn Driving Directions
Step-by-step road directions between Garland and Monahans.
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1
Start on the route
2.1 mi · 5 min
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2
At the end of the road, turn right onto US Highway 259 South
16.3 mi · 24 min · US Highway 259 South
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3
Take the ramp right
2301 ft · 56 sec
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4
Merge slight left
178.9 mi · 3 hr 12 min
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5
Merge slight right
337 mi · 5 hr 41 min
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6
Take the exit slight right toward I 20 Business West: Monahans
665 ft · 11 sec
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7
Continue on East Sealy Avenue
707 ft · 12 sec · East Sealy Avenue
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8
Continue on East Interstate 20
3 mi · 5 min · East Interstate 20
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9
Turn left onto South Main Avenue
54 m · 9 sec · South Main Avenue
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10
Turn left
32 m · 8 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 Garland and Monahans.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US Highway 259 South
Merge slight right
337 mi · 05h 41m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Showers And Thunderstorms Likely leaving Garland and Mostly Sunny then Slight Chance Rain Showers near Monahans.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Garland to Monahans?
The road trip is about 538.1 miles (866 km) and usually takes 09h 29m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Ranger is a useful midpoint, sitting about 268.7 miles from Garland and 269.4 miles from Monahans.
How much longer is the road route than the straight-line distance?
The direct path is about 496.8 miles (799.5 km), while the road route adds roughly 41.3 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $71.76 one way or $143.53 round trip. Estimated CO2 is about 168.8 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Garland and Mostly Sunny then Slight Chance Rain Showers near Monahans.
Flight Path Map
This map shows the direct air route between Garland and Monahans. Straight-line distance: 496.81 mi (799.54 km).
#1 Garland
The fourth most populous city in Texas.
| Population | 238,139 |
| Coordinates | 33.5165000, -94.6693800 |
| Altitude | 117 |
| Country | United States |
#2 Monahans
City in Texas, USA
| Population | 7,857 |
| Coordinates | 31.5943000, -102.8926500 |
| Altitude | 799 |
| Country | United States |
End: Monahans (-102.89265, 31.5943)
Estimated Travel Time
Distance: 866 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 17h 55m |
| 40 mph (64.37 km/h) | 13h 27m |
| 50 mph (80.47 km/h) | 10h 45m |
| 60 mph (96.56 km/h) | 08h 58m |
| 70 mph (112.65 km/h) | 07h 41m |
| 80 mph (129 km/h) | 06h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $71.76 | $143.53 |
| Mid-grade | $4.25 | $80.75 | $161.49 |
| Premium | $4.59 | $87.18 | $174.37 |
| Diesel | $3.99 | $75.83 | $151.65 |
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 Texas · Apr 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.