Origin
Montopolis, TX
Afternoon in Montopolis on Saturday
Local time
1:20 PM
CDT
Current temp
62°F
Unavailable
Live forecast
Trip from Montopolis, TX to San Leon, TX
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
3h 43m
Distance
197.8 mi
318 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$30
one way
EV Charging
Unknown
Best Time to Leave
4 AM
3h 31m
★
6 AM
3h 44m
8 AM
4h 9m
10 AM
3h 53m
12 PM
3h 50m
3 PM
3h 54m
5 PM
4h 8m
8 PM
3h 36m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
San Leon, TX
Mark Direen
Trip Overview
The drive from Montopolis, TX to San Leon, TX covers 197.8 miles and takes about 3h 43m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Texas State Highway 71, Gulf Freeway, Katy Freeway for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 137 miles on Texas State Highway 71. At current regular gas prices, budget about $29.89 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
98.9 miles from Montopolis, TX
A natural place for your longest stop of the day , about 1h 45m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Texas State Highway 71 | 137 mi | 2h 25m |
| Gulf Freeway | 28.4 mi | 33m |
| Katy Freeway | 10.3 mi | 12m |
| 41st Street East | 4.2 mi | 6m |
| Katy Tollway | 3.2 mi | 4m |
| FM 517 | 2.8 mi | 5m |
| East State Highway 71 | 2.7 mi | 3m |
| Bastrop Freeway | 1.9 mi | 2m |
Longest stretch:
Texas State Highway 71
— 137 mi, about 2h 25m
Turn-by-Turn Driving Directions
Step-by-step road directions between Montopolis, TX and San Leon, TX.
1
Start on this road
219 ft
·
5 sec
·
this road
Toward 183 Toll South: Lockhart
2
Merge onto 183 Toll
0.8 mi
·
47 sec
·
Bergstrom Expressway
3
Continue on US 183
0.4 mi
·
26 sec
·
Bastrop Highway
Use the straight / slight left lanes.
4
Take the exit
0.5 mi
·
1 min
Toward TX 71 East: Austin-Bergstrom International Airport
Use the slight left / straight lanes.
5
Continue on TX 71
2.2 mi
·
2 min
·
East State Highway 71
Use the straight / slight right lanes.
6
Turn straight onto 71 Toll
1.9 mi
·
2 min
·
Bastrop Freeway
Toward 71 Toll East, TX 45 Toll North, TX 130 Toll North
Use the straight / slight right lanes.
7
Continue on TX 71
0.5 mi
·
29 sec
·
East State Highway 71
8
Continue on TX 71
137 mi
·
2 hr 25 min
·
Texas State Highway 71
Use the straight / slight right lanes.
9
Take the exit
0.3 mi
·
22 sec
Toward I 10 Toll: Katy Tollway
Use the slight left lane.
10
Merge onto I 10 Toll
3.2 mi
·
4 min
·
Katy Tollway
11
Take the exit
0.2 mi
·
15 sec
Use the straight / slight right lanes.
12
Merge onto I 10; US 90
10 mi
·
12 min
·
Katy Freeway
Use the slight left lane.
13
Take the exit
0.2 mi
·
20 sec
Exit 768B
Toward I 45 South: Galveston
Use the slight left lane.
14
Merge onto I 45
28 mi
·
33 min
·
Gulf Freeway
Use the straight / left lanes.
15
Take the exit
0.2 mi
·
29 sec
Exit 19
Toward FM 517: Dickinson
16
Turn straight onto South Gulf Freeway Frontage Road
0.9 mi
·
1 min
·
South Gulf Freeway Frontage Road
17
Turn left onto FM 517
1.5 mi
·
2 min
·
Pine Drive
18
Continue on FM 517
0.3 mi
·
31 sec
·
Pine Street
19
Continue on FM 517
0.4 mi
·
40 sec
·
Main Street
20
Turn slight right onto FM 517
4.2 mi
·
6 min
·
41st Street East
21
Continue on FM 517
1.6 mi
·
2 min
·
Avenue S
22
Turn slight right onto FM 517
2.8 mi
·
5 min
·
FM 517
23
Arrive at destination
Avenue I
Trip Plan
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 98.9 miles from Montopolis, TX, or about 1h 45m into the drive.
The longest continuous stretch on this route runs about 137 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 44 miles or 47m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 98.9 miles or 1h 45m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 56m
Traffic, exits, and arrival timing usually matter more near San Leon, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Montopolis, TX 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 Montopolis, TX
This is one driving day of about 197.8 miles and 3h 43m.
Your first comfortable stop window is around 44 miles from Montopolis, TX.
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 Texas State Highway 71 for about 137 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
99 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 44 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 98.9 miles from Montopolis, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Texas State Highway 71 if your tank is already low. That segment runs about 137 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 125 decision points cluster between mile 1.2 and 157.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
1.2 mi into trip
|
~1m in
Take the exit toward TX 71 East: Austin-Bergstrom International Airport
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left / straight lanes.
Toward TX 71 East: Austin-Bergstrom Internation...
5
3.9 mi into trip
|
~4m in
|
71 Toll / Bastrop Freeway
Turn straight onto 71 Toll / Bastrop Freeway toward 71 Toll East, TX 45 Toll North, TX 130 Toll North
Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward 71 Toll East, TX 45 Toll North, TX 130 T...
6
143.3 mi into trip
|
~2h 32m in
Take the exit toward I 10 Toll: Katy Tollway
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Toward I 10 Toll: Katy Tollway
5
146.8 mi into trip
|
~2h 37m in
Take the exit
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
7
157.3 mi into trip
|
~2h 50m in
Take the exit toward I 45 South: Galveston
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Exit 768B
Toward I 45 South: Galveston
Fuel & Cost
Regular Gas
$29.89 one way
$59.78 round trip
$3.84/gal
25.4 MPG avg
69 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $32.71 | $65.43 |
| premium | $4.54 | $35.32 | $70.63 |
| diesel | $5.61 | $43.67 | $87.34 |
Estimated Tolls: $0.23
Katy Tollway
(3.2 mi)
$0.23
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$30
Tolls
$0
Meals
$25–$50
Total
$55–$80
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 69.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $21 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 59.3 | 0 | $20.77 | $9.49 |
| Efficient EV | 49.5 | 0 | $17.31 | $7.91 |
| EV Truck/SUV | 79.1 | 0 | $27.69 | $12.66 |
Gas CO2
69 kg
EV CO2
23 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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.
Destination
San Leon, TX
Afternoon in San Leon on Saturday
Local time
1:20 PM
CDT
Current temp
68°F
Unavailable
Live forecast
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
6 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 43m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
197.8 mi in 3h 43m, mostly highway — 137 mi of that is on Texas State Highway 71.
93% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 137 mi on Texas State Highway 71.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on Texas State Highway 71 and Gulf Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.2 miles in.
Driving Effort
7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 197.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 3.9 miles (71 Toll / Bastrop Freeway): Lane positioning matters here. Multiple destination signs - pick the right one; at 143.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Montopolis, TX to San Leon, TX, road signs begin pointing toward Fm 517: Dickinson along the way.
Fm 517: Dickinson
185.8 mi in
|
~3h 23m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 43m. Total distance: 197.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 43m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (93%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 137 miles on Texas State Highway 71. The full list of main roads is in the Roads section above.
Expect about $0.23 in tolls one way, starting with Katy Tollway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at San Leon, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 3.9 miles (71 Toll / Bastrop Freeway): Lane positioning matters here. Multiple destination signs - pick the right one; at 143.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Possible but tiring. At 3.7 hours each way, an in-and-out day trip would put you behind the wheel for 7.5 hours — manageable with a long break at San Leon, TX, but most travelers stay overnight.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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