Origin
Plano, TX
Late night in Plano on Tuesday
Local time
5:40 AM
CDT
Current temp
83°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
4h 50m
Distance
274.3 mi
441 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$41
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Plano, TX
Wikimedia Commons
Katy, TX
Wikimedia Commons
Plano to Katy is 274.3 miles and takes about 4h 50m via US-75 N and I-45 S, with a fuel budget near $41 and enough daylight to finish in a day. This is a straightforward drive entirely within Texas, connecting two points in the Great Plains region. Given its predominantly highway nature and manageable duration, it's well-suited for a single-day trip. You'll find it to be a practical route for getting between these two Texas cities without significant detours.
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
137.1 miles from Plano, TX
A natural place for your longest stop of the day , about 2h 23m into the drive .
| Road | Distance | Duration |
|---|---|---|
| Julius Schepps Freeway | 214.1 mi | 3h 41m |
| North Grand Parkway West | 37.8 mi | 41m |
| Central Expressway | 16.8 mi | 18m |
| Highway Boulevard | 1 mi | 1m |
| Katy Freeway | 0.7 mi | <1m |
| East 15th Street | 0.6 mi | 1m |
| US 90 | 0.5 mi | 1m |
Step-by-step road directions between Plano, TX and Katy, TX.
Start on East 15th Street
Turn left onto Central Expressway
Take the ramp
Merge onto US 75
Continue on I 45
Keep slight left at fork onto I 45
Take the exit
Keep slight left at fork
Merge onto TX 99 Toll
Take the exit
Keep slight right at fork
Merge onto I 10; US 90
Take the exit onto US 90
Turn right onto US 90
Arrive at destination
To make the most of this 4h 50m drive, consider leaving Plano early in the morning to avoid potential midday traffic, especially as you near the Houston area. With only one recommended stop and a manageable distance, you have flexibility. Keep an eye on fuel levels, as the longest stretch without a major change in road type is over 200 miles. The $41 fuel cost is an estimate, so checking prices along your route is always a good idea. This route is efficient enough that you won't need to worry about splitting it over two days.
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.
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 60 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 137.1 miles or 2h 23m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 54m
Traffic, exits, and arrival timing usually matter more near Katy, TX than in the middle of the route.
Open the route before leaving Plano, 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 Plano, TX
This is one driving day of about 274.3 miles and 4h 50m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
137 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.
A short stop after about 60 miles helps settle the day before fatigue starts building.
The midpoint is around 137.1 miles from Plano, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Julius Schepps Freeway if your tank is already low. That segment runs about 214.1 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0.6 and 272.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto Central Expressway
Lane positioning matters here
Take the exit toward 99 Toll West: Grand Parkway
Exit ramp - move to the correct lane early. Lane positioning matters here
Take the exit toward I 10 East, I 10 West: Houston, San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight right at fork toward I 10 West: San Antonio
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit onto US 90 toward US 90 West: Katy Mills Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Regular Gas
$41.45 one way
$82.89 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $45.37 | $90.73 |
| premium | $4.54 | $48.97 | $97.95 |
| diesel | $5.61 | $60.56 | $121.12 |
Estimated Tolls: $1.34
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
$41
Tolls
$1
Meals
$25–$50
Total
$68–$93
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 96 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 82.3 | 1 | $28.80 | $13.17 |
| Efficient EV | 68.6 | 0 | $24.00 | $10.97 |
| EV Truck/SUV | 109.7 | 1 | $38.40 | $17.56 |
Gas CO2
96 kg
EV CO2
32 kg (67% 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.
Current conditions at both ends of the drive.
Origin
Late night in Plano on Tuesday
Local time
5:40 AM
CDT
Current temp
83°F
Unavailable
Destination
Late night in Katy on Tuesday
Local time
5:40 AM
CDT
Current temp
86°F
Unavailable
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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
This trip is almost entirely highway, with 98% of the 274.3 miles on main roads like US-75 N and I-45 S. You'll encounter a very long stretch of highway, 214.1 miles on US-75 N, before transitioning to other roads. Expect frequent exits and potential for urban merging as you approach your destination. The vast majority of this drive will be on high-speed, limited-access roadways.
This is a straightforward highway drive that stays mostly on Julius Schepps Freeway and North Grand Parkway West. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.6 miles in near Central Expressway.
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 13 significant decision points across 274.3 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 0.6 miles (Central Expressway): Lane positioning matters here; at 231.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 270.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Mostly flat terrain
Total Climb
193 ft
Total Descent
723 ft
Highest Point
668 ft
Elevation Range
530 ft
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.
Founded 1945
Katy is a town in Southeastern Texas, just west of Houston, with rich history and a little bit of small town charm. It used to be a railroad town along the Missouri–Kansas–Texas railroad. In the 1960s, Houston started growing, eventually making Katy part of its surrounding area. Katy is a place to see for its heritage and historical sights, as well as other attractions to visit, with many being more popular than historical locations.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 4h 50m. Total distance: 274.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 50m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (98%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and USGS 3DEP for elevation. See our methodology for refresh cadence and limitations.
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