How far is Mont Belvieu, TX from Dallas, TX?
The driving distance from Mont Belvieu, TX to Dallas, TX is about 268.6 miles (432.3 km), with a travel time of about 04h 09m by car.
- The straight-line flight distance is about 232.2 miles (373.7 km).
- For a round trip, plan for roughly 08h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 04h 09m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Leon County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Mont Belvieu and Dallas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mont Belvieu and Dallas.
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1
Start on Farm-to-Market Road 565
1481 ft · 36 sec · Farm-to-Market Road 565
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2
At the end of the road, turn right
1.5 mi · 2 min
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3
Take the ramp left
1690 ft · 46 sec
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4
Merge slight left onto East Grand Parkway North
46.9 mi · 50 min · East Grand Parkway North
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5
Take the exit slight right toward Houston, Dallas
1706 ft · 45 sec
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6
Turn right onto Interstate 45 North Frontage Road
2 mi · 4 min · Interstate 45 North Frontage Road
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7
Take the ramp slight left toward I 45 North
624 ft · 8 sec
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8
Merge slight left
211.5 mi · 3 hr 38 min
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9
Take the exit slight right toward Main Street West, Elm Street
1302 ft · 32 sec
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10
Keep slight right to continue on Elm Street
577 ft · 14 sec
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11
Turn straight onto Elm Street
1.4 km · 2 min · Elm Street
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12
Turn right onto North Lamar Street
1233 ft · 31 sec · North Lamar Street
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13
Arrive at your destination
0 m · 1 sec · North Lamar Street
Car Route Details
A richer read on the saved driving route between Mont Belvieu and Dallas.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 45 North
Merge slight left
212 mi · 03h 38m
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.
Showers And Thunderstorms leaving Mont Belvieu and Chance Showers And Thunderstorms near Dallas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mont Belvieu to Dallas?
The road trip is about 268.6 miles (432.3 km) and usually takes 04h 09m 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?
Leona is a useful midpoint, sitting about 132.4 miles from Mont Belvieu and 136.2 miles from Dallas.
How much longer is the road route than the straight-line distance?
The direct path is about 232.2 miles (373.7 km), while the road route adds roughly 36.4 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 CDT. If you want a more comfortable same-day return, try to leave by 8:42 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.82 one way or $71.65 round trip. Estimated CO2 is about 84.2 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Mont Belvieu and Chance Showers And Thunderstorms near Dallas.
Stop Ideas Near Leona
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Leona.
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Flight Path Map
This map shows the direct air route between Mont Belvieu and Dallas. Straight-line distance: 232.2 mi (373.69 km).
#1 Mont Belvieu
City in Texas
| Population | 7,137 |
| Coordinates | 29.8477200, -94.8907600 |
| Altitude | 21 |
| Country | United States |
#2 Dallas
The ninth most populous city in the United States and the center of the Dallas-Fort Worth metropolitan area.
| Population | 1,343,266 |
| Coordinates | 32.7830600, -96.8066700 |
| Altitude | 128 |
| Country | United States |
End: North Lamar Street (-96.806574, 32.783135)
Estimated Travel Time
Distance: 432 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 56m |
| 40 mph (64.37 km/h) | 06h 42m |
| 50 mph (80.47 km/h) | 05h 22m |
| 60 mph (96.56 km/h) | 04h 28m |
| 70 mph (112.65 km/h) | 03h 50m |
| 80 mph (129 km/h) | 03h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $35.82 | $71.65 |
| Mid-grade | $4.25 | $40.31 | $80.62 |
| Premium | $4.59 | $43.52 | $87.05 |
| Diesel | $3.99 | $37.85 | $75.71 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.