Origin
San Leon, TX
Afternoon in San Leon on Saturday
Local time
3:29 PM
CDT
Current temp
68°F
Unavailable
Live forecast
Trip from San Leon, TX to Plano, TX
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
5h 23m
Distance
295.5 mi
476 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$45
one way
EV Charging
Unknown
Best Time to Leave
4 AM
5h 10m
★
6 AM
5h 23m
8 AM
5h 50m
10 AM
5h 33m
12 PM
5h 30m
3 PM
5h 34m
5 PM
5h 49m
8 PM
5h 15m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
San Leon, TX
Mark Direen
Plano, TX
Wikimedia Commons
Trip Overview
The drive from San Leon, TX to Plano, TX covers 295.5 miles and takes about 5h 23m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on North Freeway, South Gulf Freeway, North Central Expressway for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 237.4 miles on North Freeway. At current regular gas prices, budget about $44.65 one way before food or hotel costs.
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
147.8 miles from San Leon, TX
A natural place for your longest stop of the day , about 2h 45m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| North Freeway | 237.4 mi | 4h 9m |
| South Gulf Freeway | 28.6 mi | 33m |
| North Central Expressway | 16.6 mi | 18m |
| FM 517 | 8.7 mi | 14m |
| Pine Drive | 1.4 mi | 2m |
| Gulf Freeway Frontage Road | 1 mi | 1m |
| East 15th Street | 0.6 mi | 1m |
| Pine Street | 0.3 mi | <1m |
Longest stretch:
North Freeway
— 237.4 mi, about 4h 9m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Leon, TX and Plano, TX.
1
Start on Avenue I
165 ft
·
9 sec
·
Avenue I
2
Continue on FM 517
8.7 mi
·
14 min
·
FM 517
3
Turn left onto FM 517
0.3 mi
·
28 sec
·
Parke Street
4
Turn straight onto FM 517
446 ft
·
9 sec
·
Main Street
5
Continue on FM 517
0.3 mi
·
31 sec
·
Pine Street
6
Continue on FM 517
1.4 mi
·
2 min
·
Pine Drive
7
Turn right onto Gulf Freeway Frontage Road
1.0 mi
·
1 min
·
Gulf Freeway Frontage Road
8
Take the ramp
0.2 mi
·
25 sec
Toward I 45 North
Use the slight left lane.
9
Merge onto I 45
29 mi
·
33 min
·
South Gulf Freeway
Use the straight / slight right lanes.
10
Continue on I 45
237 mi
·
4 hr 9 min
·
North Freeway
Use the straight / slight right lanes.
11
Continue on US 75
15 mi
·
16 min
·
North Central Expressway
Use the straight / right lanes.
12
Take the exit
0.4 mi
·
52 sec
Exit 28A
Toward Plano Parkway, 15th Street
Use the straight / slight right lanes.
13
Turn straight onto North Central Expressway
1.4 mi
·
2 min
·
North Central Expressway
Use the straight / left / right lanes.
14
Turn right onto East 15th Street
0.6 mi
·
1 min
·
East 15th Street
Use the straight / right lanes.
15
Arrive at destination
East 15th Street
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 147.8 miles from San Leon, TX, or about 2h 45m into the drive.
The longest continuous stretch on this route runs about 237.4 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 65 miles or 1h 18m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 147.8 miles or 2h 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 4h 25m
Traffic, exits, and arrival timing usually matter more near Plano, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving San Leon, 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 San Leon, TX
This is one driving day of about 295.5 miles and 5h 23m.
Your first comfortable stop window is around 65 miles from San Leon, 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 North Freeway for about 237.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
148 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 65 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 147.8 miles from San Leon, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before North Freeway if your tank is already low. That segment runs about 237.4 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 55 decision points cluster between mile 11.8 and 294.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
11.8 mi into trip
|
~19m in
Take the ramp toward I 45 North
Lane positioning matters here
Use the slight left lane.
Toward I 45 North
5
12 mi into trip
|
~19m in
|
I 45 / South Gulf Freeway
Merge onto I 45 / South Gulf Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
293.1 mi into trip
|
~5h 18m in
Take the exit toward Plano Parkway, 15th Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 28A
Toward Plano Parkway, 15th Street
3
293.5 mi into trip
|
~5h 19m in
|
North Central Expressway
Turn straight onto North Central Expressway
Lane positioning matters here
Use the straight / left / right lanes.
6
294.9 mi into trip
|
~5h 22m in
|
East 15th Street
Turn right onto East 15th Street
Lane positioning matters here
Use the straight / right lanes.
Fuel & Cost
Regular Gas
$44.65 one way
$89.30 round trip
$3.84/gal
25.4 MPG avg
103 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $48.87 | $97.75 |
| premium | $4.54 | $52.76 | $105.52 |
| diesel | $5.61 | $65.24 | $130.49 |
Estimated Tolls: $1.32
Central Expressway
(16.6 mi)
$1.32
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
$45
Tolls
$1
Meals
$25–$50
Total
$71–$96
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 103.4 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $31 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 88.6 | 1 | $31.03 | $14.18 |
| Efficient EV | 73.9 | 0 | $25.86 | $11.82 |
| EV Truck/SUV | 118.2 | 1 | $41.37 | $18.91 |
Gas CO2
103 kg
EV CO2
35 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.
Destination
Plano, TX
Afternoon in Plano on Saturday
Local time
3:29 PM
CDT
Current temp
61°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
7 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 23m 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.
What kind of drive is this?
295.5 mi in 5h 23m, mostly highway — 237.4 mi of that is on North Freeway.
99% highway — fuel and pacing are the main things to plan.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 237.4 mi on North Freeway.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on North Freeway and South Gulf Freeway. There are only a few real navigation decisions along the way. The trickiest moment comes around 11.8 miles in.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 23m drive. You will face about 5 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 11.8 miles: Lane positioning matters here; at 12 miles (I 45 / South Gulf Freeway): Merge point - match speed before joining. Lane positioning matters here; at 293.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
About the Cities
Arriving in Plano, TX
Full guide →Plano is a city of 285,000 people (2020) in the Dallas-Fort Worth Metroplex region of Texas and is north of Dallas. It is home to the headquarters of several large corporations.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 23m. Total distance: 295.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 23m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (99%). Straightforward navigation.
Frequently Asked Questions
The longest stretch is about 237.4 miles on North Freeway. The full list of main roads is in the Roads section above.
Expect about $1.32 in tolls one way, starting with Central Expressway. 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.
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 11.8 miles: Lane positioning matters here; at 12 miles (I 45 / South Gulf Freeway): Merge point - match speed before joining. Lane positioning matters here; at 293.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Not recommended in a single day. At 5.4 hours each way, a round trip means 10.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Plano, TX before the return drive.
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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