Trip from Forest Hill, TX to San Antonio, TX

Drive Time

6h 45m

Distance

369.7 mi

595 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$56

one way

EV Charging

station data

Best Time to Leave

Save up to 35 min

4 AM

6h 34m ★

6 AM

6h 46m

8 AM

7h 9m

10 AM

6h 54m

12 PM

6h 52m

3 PM

6h 55m

5 PM

7h 8m

8 PM

6h 39m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly

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Forest Hill, TX

Jeff Stapleton

San Antonio, TX

Wikimedia Commons

Trip Overview

Traveling from Forest Hill to San Antonio covers 390.6 miles of Texas landscape, a journey that typically takes about 6 hours and 10 minutes behind the wheel. Because this route stays entirely within the Great Plains, you can expect consistent terrain as you head south. A single-day trip is certainly achievable if you are comfortable with a full day of driving, making an overnight stay optional rather than strictly necessary. Budgeting approximately $58 for fuel will keep you moving throughout the excursion. Since this drive consists of turn-heavy local roads rather than major interstates, plan for a slower, more engaged pace than a standard highway cruise.

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

184.8 miles from Forest Hill, TX

A natural place for your longest stop of the day , about 3h 24m into the drive .

Drive Character

Expect a turn-heavy experience on this drive, as the route avoids high-speed interstates in favor of local roads. With a 0% highway share, you will be navigating constant changes in direction rather than settling into a monotonous interstate grind. This profile requires your full attention, as the lack of long, straight stretches keeps the steering wheel active for the duration of the 6-hour and 10-minute trip. You won't find any singular, exceptionally long uninterrupted stretches here, meaning the road keeps you engaged with its winding local path from start to finish.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.

There are about 44 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

Purple Heart Trail is the longest continuous segment at about 99.6 miles.

Elevation Profile

Gently rolling terrain

857 ft 499 ft

Total Climb

1,320 ft

Total Descent

1,249 ft

Highest Point

857 ft

~354.3 mi in

Elevation Range

358 ft

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on Purple Heart Trail and South R L Thornton Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 59.6 miles in.

Route Complexity 8/10

Demanding - plan breaks and stay ahead of the key maneuvers

This is a demanding drive. With 30 significant decision points across 369.7 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 59.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 95.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 97.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 30 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

59.6 mi into trip | ~1h 11m in

Keep slight left at fork toward US 75 South, TX 121 South

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Toward US 75 South, TX 121 South

95.4 mi into trip | ~1h 50m in

Take the exit toward Downtown, Good-Latimer Expressway

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left lane. Exit 284C Toward Downtown, Good-Latimer Expressway

97.5 mi into trip | ~1h 54m in

Keep slight left at fork toward I 35E North, I 35E South: Denton, Waco

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Toward I 35E North, I 35E South: Denton, Waco

288.1 mi into trip | ~5h 13m 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

368 mi into trip | ~6h 42m in | I 35 / North Pan Am Expressway

Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South: Lower Level, Laredo

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left lane. Toward I 35 South: Lower Level, Laredo

Towns Along This Route

Between Forest Hill, TX and San Antonio, TX, road signs point toward Trenton, Downtown, Denton, Waco and Dallas Zoo.

Trenton

24.6 mi in | ~31m

Downtown

95.4 mi in | ~1h 50m

Denton

97.4 mi in | ~1h 54m

Waco

97.5 mi in | ~1h 54m

Dallas Zoo

98.4 mi in | ~1h 56m | via I 35E

Main Roads

Road	Distance	Duration
Purple Heart Trail	99.6 mi	1h 46m
South R L Thornton Freeway	89.9 mi	1h 32m
I 35	55.8 mi	58m
Central Expressway	35 mi	37m
US Highway 82 West	21.1 mi	23m
North Pan Am Expressway	17 mi	20m
South State Highway 121	16.9 mi	18m
Sam Rayburn Highway	15.2 mi	17m

Longest stretch: Purple Heart Trail — 99.6 mi, about 1h 46m

Turn-by-Turn Driving Directions

Step-by-step road directions between Forest Hill, TX and San Antonio, TX.

Start on County Road 35050

231 ft · 15 sec · County Road 35050

Turn left onto FM 38

3.5 mi · 8 min · FM 38

Turn right onto US 82

21 mi · 23 min · US Highway 82 West

Take the exit

0.1 mi · 19 sec

Exit 670 Toward TX 121: Randolph, Trenton

Turn straight onto West US Highway 82

0.2 mi · 29 sec · West US Highway 82

Turn left onto TX 121

2.0 mi · 2 min · North State Highway 121

Turn right onto TX 56; TX 121

0.5 mi · 37 sec · West Sam Rayburn Drive

Turn slight left onto TX 121

17 mi · 18 min · South State Highway 121

Continue on TX 121

15 mi · 17 min · Sam Rayburn Highway

Keep slight left at fork

0.8 mi · 1 min

Toward US 75 South, TX 121 South Use the straight / slight right lanes.

Merge onto US 75; TX 121

35 mi · 37 min · Central Expressway

Use the straight / slight right lanes.

Take the exit

501 ft · 12 sec

Exit 284C Toward Downtown, Good-Latimer Expressway Use the slight left lane.

Continue on North Central Expressway

0.7 mi · 1 min · North Central Expressway

Use the left / straight lanes.

Turn right onto Elm Street

304 ft · 10 sec · Elm Street

Turn left onto North Pearl Expressway

0.2 mi · 28 sec · North Pearl Expressway

Use the straight lane.

Turn right onto Young Street

0.1 mi · 19 sec · Young Street

Turn left onto South Harwood Street

315 ft · 8 sec · South Harwood Street

Use the left lane.

Turn right onto Canton Street

0.4 mi · 47 sec · Canton Street

Take the ramp

0.3 mi · 38 sec

Toward I 30 West

Keep slight left at fork

0.1 mi · 14 sec

Toward I 35E South, I 35E North: Waco, Denton

Keep slight left at fork

221 ft · 5 sec

Toward I 35E North, I 35E South: Denton, Waco Use the straight / slight right lanes.

Keep slight left at fork

0.4 mi · 30 sec

Toward I 35E South: Waco Use the left / right lanes.

Continue on I 35E

0.5 mi · 44 sec · South R L Thornton Freeway

Continue on I 35E

89 mi · 1 hr 31 min · South R L Thornton Freeway

Exit 426 Toward Dallas Zoo Use the straight / slight right lanes.

Continue on I 35; US 77

6.6 mi · 7 min · North Jack Kultgen Expressway

Use the straight / slight right lanes.

Continue on I 35

38 mi · 39 min · Purple Heart Trail

Use the straight / slight right lanes.

Keep slight left at fork onto I 35

56 mi · 58 min · I 35

Use the straight / slight right lanes.

Keep slight left at fork onto I 35; US 290

50 mi · 54 min · Purple Heart Trail

Toward 32nd Street, Dean Keeton Street Use the slight left lane.

Continue on I 35

1.7 mi · 1 min · Interstate Highway 35

Use the straight / slight right lanes.

Continue on I 35

12 mi · 12 min · Purple Heart Trail

Use the straight / slight right lanes.

Continue on I 35

10.0 mi · 11 min · North Pan Am Expressway

Use the straight / slight right lanes.

Keep slight left at fork onto I 35

6.4 mi · 8 min · North Pan Am Expressway

Toward I 35 South Use the straight / slight right lanes.

Keep slight left at fork onto I 35

0.6 mi · 41 sec · North Pan Am Expressway

Toward I 35 South: Lower Level, Laredo Use the slight left lane.

Take the exit

0.1 mi · 16 sec

Exit 157A Toward Lexington Avenue, Main Avenue, San Pedro Avenue Use the slight right lane.

Turn straight onto East Elmira Street

526 ft · 17 sec · East Elmira Street

Use the left / straight lanes.

Turn left onto North Main Avenue

0.2 mi · 18 sec · North Main Avenue

Use the left / straight lanes.

Enter roundabout onto Navarro Street

159 ft · 3 sec · Navarro Street

Continue on Navarro Street

111 ft · 2 sec · Navarro Street

Keep slight right at fork onto North Main Avenue

0.4 mi · 51 sec · North Main Avenue

Use the slight left / slight right lanes.

Turn right onto West Travis Street

222 ft · 10 sec · West Travis Street

Turn left onto North Flores Street

0.2 mi · 20 sec · North Flores Street

Continue on Military Plaza

392 ft · 15 sec · Military Plaza

Turn left onto Dolorosa Street

327 ft · 8 sec · Dolorosa Street

Arrive at destination

Dolorosa Street

Trip Plan

Given the turn-heavy nature of this 390.6-mile route, departing early in the morning is your best strategy to avoid fatigue and ensure you reach San Antonio before dark. Since you are navigating local roads, keep a close eye on your fuel gauge; even though you have a $58 budget, local stops can be less frequent than on major highways. Flexibility is a major advantage on this trip, so don't hesitate to pull over for a quick stretch whenever the winding road feels repetitive. Pay close attention to your navigation system, as the absence of major highways means you will be making frequent turns throughout the entire journey.

Morning Departure

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Evening Departure

This is a long drive — plan for a morning departure or consider splitting it into two days.

You can normally do this drive in one day.

Plan roughly 1 meaningful break for fuel, food, and rest.

The halfway point lands around 184.8 miles from Forest Hill, TX, or about 3h 24m 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 81 miles or 1h 34m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 184.8 miles or 3h 24m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 5h 36m

Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.

Before You Leave

Open the route before leaving Forest Hill, 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 Forest Hill, TX

This is one driving day of about 369.7 miles and 6h 45m.

Your first comfortable stop window is around 81 miles from Forest Hill, 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.

Halfway Point

Midpoint

About 184.8 mi from Forest Hill, TX · 3h 24m into the drive

Mid-route town

Meal stop

Arlington, TX

185 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

Richardson, TX

Fuel and coffee

A short stop after about 81 miles helps settle the day before fatigue starts building.

Killeen, TX

Meal break

The midpoint is around 184.8 miles from Forest Hill, TX, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Purple Heart Trail if your tank is already low. That segment runs about 99.6 miles.

Arriving in San Antonio, TX

The final approach into San Antonio, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Antonio, TX.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$56.47 one way

$112.95 round trip

$3.88/gal 25.4 MPG avg 129 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.25	$61.89	$123.78
premium	$4.59	$66.82	$133.65
diesel	$5.64	$82.13	$164.27

Estimated Tolls: $2.86

Central Expressway (35.7 mi) $2.86

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

$56

Tolls

Meals

$25–$50

Total

$84–$109

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 129.4 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $39 in charging · 1 stop · 67% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	110.9	1	$38.82	$17.75
Efficient EV	92.4	1	$32.35	$14.79
EV Truck/SUV	147.9	1	$51.76	$23.66

Gas CO2

129 kg

EV CO2

43 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 data refreshed 2 days ago

Origin

Forest Hill, TX

Afternoon in Forest Hill on Sunday

Local time

3:37 PM

CDT

Current temp

63°F

Unavailable

Live forecast

Destination

San Antonio, TX

Afternoon in San Antonio on Sunday

Local time

3:37 PM

CDT

Current temp

81°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

18 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

6h 45m on the road

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Forest Hill, TX to San Antonio, TX covers 369.7 miles and takes about 6h 45m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are Purple Heart Trail, South R L Thornton Freeway, I 35. Most of the drive stays on highways, so watch for ramps and exits.

This is a comfortable same-day trip.

The midpoint is about 184.8 miles from Forest Hill, TX. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $56.47 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.

Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Between Forest Hill, TX and San Antonio, TX, road signs point toward Trenton, Downtown, Denton, Waco and Dallas Zoo.

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Trip from Forest Hill, TX to San Antonio, TX

Best Time to Leave

Trip Overview

Drive Character

Elevation Profile

How Hard Is This Drive?

Critical Maneuvers

Towns Along This Route

Main Roads

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Pacing Suggestions

Arriving in San Antonio, TX

Fuel & Cost

Travel Intel

Forest Hill, TX

San Antonio, TX

Same local time

18 degrees warmer at arrival

6h 45m on the road

Frequently Asked Questions

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