Arlington, TX to Castle Hills, TX is 273.7 miles and takes about 4h 57m via Purple Heart Trail, South Freeway, and I 35, with a fuel budget near $44 and enough daylight to finish in a day. This trip stays within Texas, moving from the Great Plains region to another part of the same region. Expect a mix of highway cruising and surface streets, so plan for varying speeds and traffic conditions. With only one recommended stop and a drive time under five hours, this route is very manageable for a single day.
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
136.9 miles from Arlington, TX
A natural place for your longest stop of the day
, about 2h 28m into the drive
.
Hour-of-day weekday pattern from 100 FHWA count stations on your route.
Peak
4 PM
~3,421 veh/hr typical
· worst 4,049
Quietest
2 AM
~584 veh/hr
Peak-to-quiet ratio
5.9×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Arlington, TX and Castle Hills, TX.
1
Start on West Abram Street
93 ft·8 sec·West Abram Street
2
Continue on West Abram Street
417 ft·21 sec·West Abram Street
3
Turn right onto South Center Street
2.0 mi·4 min·South Center Street
Use the right lane.
4
Turn right onto Spur 303
0.5 mi·48 sec·West Pioneer Parkway
Use the left lane.
5
Turn left onto FM 157
1.5 mi·2 min·South Cooper Street
Use the left lane.
6
Keep slight right at fork onto FM 157
1.0 mi·1 min·South Cooper Street
Use the left lane.
7
Take the ramp
0.6 mi·1 min
Toward I 20 West: Fort Worth
8
Merge onto I 20
10 mi·11 min·Ronald Reagan Memorial Highway
Use the straight / slight right lanes.
9
Take the exit
0.2 mi·28 sec
Exit 437Toward I 35W South, I 35W North: Waco, DentonUse the straight / slight right lanes.
10
Keep slight left at fork
0.9 mi·1 min
Toward I 35W South: WacoUse the straight / slight right lanes.
11
Merge onto I 35W
78 mi·1 hr 20 min·South Freeway
Use the straight / slight right lanes.
12
Continue on I 35; US 77
6.6 mi·7 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
13
Continue on I 35
38 mi·39 min·Purple Heart Trail
Use the straight / slight right lanes.
14
Keep slight left at fork onto I 35
56 mi·58 min·I 35
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 35; US 290
50 mi·54 min·Purple Heart Trail
Toward 32nd Street, Dean Keeton StreetUse the slight left lane.
16
Continue on I 35
1.7 mi·1 min·Interstate Highway 35
Use the straight / slight right lanes.
17
Continue on I 35
12 mi·12 min·Purple Heart Trail
Use the straight / slight right lanes.
18
Continue on I 35
6.9 mi·7 min·North Pan Am Expressway
Use the straight / slight right lanes.
19
Take the exit
0.4 mi·55 sec
Exit 166Toward I 410 West, Loop 368 SouthUse the straight / slight right lanes.
20
Keep slight left at fork
0.3 mi·33 sec
Toward I 410 WestUse the straight / slight right lanes.
21
Merge onto I 410
6.9 mi·7 min·Connally Loop
Use the straight / slight right lanes.
22
Take the exit
0.2 mi·21 sec
Exit 19AToward Honeysuckle Lane, Frontage RoadUse the slight right lane.
23
Turn right onto Roleto Drive
0.1 mi·28 sec·Roleto Drive
24
Turn right onto South Gardenview Drive
0.1 mi·30 sec·South Gardenview Drive
25
Arrive at destination
South Gardenview Drive
Trip Plan
Given the 4h 57m estimated drive time and 273.7 miles, departing in the morning is ideal to avoid potential afternoon traffic. You're looking at a fuel cost of around $44, so ensure your tank is full before you leave Arlington. The route includes one recommended stop, and the longest stretch without a major change is 99.6 miles, so plan your break accordingly. Since this trip is easily completed in one day, you have flexibility; however, be mindful of the shift from highway to surface roads as you get closer to Castle Hills, as this can impact your arrival time.
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 136.9 miles from Arlington, TX, or about 2h 28m into the drive.
The longest continuous stretch on this route runs about 99.6 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 60 miles or 1h 8m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 136.9 miles or 2h 28m 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 1m
Traffic, exits, and arrival timing usually matter more near Castle Hills, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Arlington, 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 Arlington, TX
This is one driving day of about 273.7 miles and 4h 57m.
Your first comfortable stop window is around 60 miles from Arlington, 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 Purple Heart Trail for about 99.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 18
5 decision points cluster between mile 15.9 and 273.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
15.9 mi into trip|~21m in
Take the exit toward I 35W South, I 35W North: Waco, Denton
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 437
Toward I 35W South, I 35W North: Waco, Denton
7
16.1 mi into trip|~22m in
Keep slight left at fork toward I 35W South: Waco
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 35W South: Waco
8
195.3 mi into trip|~3h 30m in|I 35; US 290 / Purple Heart Trail
Keep slight left at fork onto I 35; US 290 / Purple Heart Trail toward 32nd Street, Dean Keeton Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward 32nd Street, Dean Keeton Street
8
265.7 mi into trip|~4h 47m in
Take the exit toward I 410 West, Loop 368 South
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 166
Toward I 410 West, Loop 368 South
8
273.3 mi into trip|~4h 56m in
Take the exit toward Honeysuckle Lane, Frontage Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 19A
Toward Honeysuckle Lane, Frontage Road
Fuel & Cost
Regular Gas
$37.49 one way
$74.98 round trip
$3.48/gal25.4 MPG avg96 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.89
$41.87
$83.75
premium
$4.23
$45.53
$91.05
diesel
$4.80
$51.68
$103.36
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$37
Meals
$25–$50
Total
$62–$87
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 95.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $29 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
82.1
1
$28.74
$13.14
Efficient EV
68.4
0
$23.95
$10.95
EV Truck/SUV
109.5
1
$38.32
$17.52
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.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 18, 2026
Origin
Arlington, TX
Late night
in Arlington on Monday
Local time
1:40 AM
CDT
Current temp
76°F
Partly Cloudy
S 5 to 10 mph2% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 10:45PM CDT by NWS Brownsville TX
Flood Warning
Flood Warning issued July 17 at 9:59PM CDT until July 19 at 6:17PM CDT by NWS Austin/San Antonio TX
Destination
Castle Hills, TX
Late night
in Castle Hills on Monday
Local time
1:40 AM
CDT
Current temp
75°F
Mostly Cloudy
SE 10 mph2% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 10:45PM CDT by NWS Brownsville TX
Flood Warning
Flood Warning issued July 17 at 9:59PM CDT until July 19 at 6:17PM CDT by NWS Austin/San Antonio TX
96°F
Troy, TX
137 mi in
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
1 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
4h 57m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
4 mi from route
~10 min detour
Free
near mile 94.4
Welcome to San Antonio Missions, a National Park Service site and the only UNESCO World Heritage Site in Texas. Each mission in the park is a center of community and has been since the early 1700s. Th...
15 mi from route
~39 min detour
Free
near mile 273.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive features a 55% highway share, meaning you'll spend a good portion of the 273.7 miles on faster roads like I 35. The longest continuous stretch on a single highway is 99.6 miles on Purple Heart Trail. You'll transition between high-speed freeway travel and slower, surface-level roads, so be prepared for frequent changes in the speed limit and exit density. Expect to encounter urban merging and more stop-and-go traffic as you approach your destination.
55% highway, the rest on surface roads — varied driving throughout.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 99.6 mi on Purple Heart Trail.
How Hard Is This Drive?
9/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 15.9 miles in.
Driving Effort9/10
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 18 significant decision points across 273.7 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 15.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 16.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 195.3 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
903 ft414 ft
Total Climb
1,075 ft
Total Descent
840 ft
Highest Point
903 ft
~156.4 mi in
Elevation Range
489 ft
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 Arlington, TX to Castle Hills, TX, road signs begin pointing toward Denton along the way.
Arlington is a city in the Dallas-Fort Worth Metroplex metropolitan area, in the Prairies and Lakes region of Texas. With a population of almost 400,000 (2019), it is Texas' seventh largest, and the third largest in the Metroplex. Arlington is south of the sprawling DFW International Airport.
Top landmarks
•Six Flags Over Texas — amusement park
•Mini Mine Train — Steel roller coaster
•Arlington Museum of Art — art museum in Texas, United States
Doable as a same-day drive at 4h 57m. Total distance: 273.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 57m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 99.6 miles on Purple Heart Trail. The full list of main roads is in the Roads section above.
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 Castle Hills, 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 15.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 16.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 195.3 miles (I 35; US 290 / Purple Heart Trail): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Waco Mammoth National Monument and San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 5.0 hours each way, an in-and-out day trip would put you behind the wheel for 9.9 hours — manageable with a long break at Castle Hills, TX, but most travelers stay overnight.
