Origin
Post, TX
Afternoon in Post on Sunday
Local time
2:16 PM
CDT
Current temp
56°F
Unavailable
Live forecast
Trip from Post, TX to San Antonio, TX
Drive Time
6h 1m
Distance
344 mi
554 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$53
one way
Post, TX
Thomas balabaud
San Antonio, TX
Wikimedia Commons
Trip Overview
Traveling from Post to San Antonio covers 347.2 miles and takes approximately 5 hours and 29 minutes of drive time. Because this journey stays within the Great Plains region of Texas, you will experience a consistent landscape as you move toward the state's interior. While the trip is feasible as a one-day drive, the turn-heavy local nature of the roads makes it feel more substantial than a simple highway sprint. Budgeting around $52 for fuel should cover your needs for the trip. Given the intensity of the navigation required, it is best to approach this as a full-day commitment rather than a quick afternoon jaunt.
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
172 miles from Post, TX
A natural place for your longest stop of the day , about 3h 3m into the drive .
Drive Character
Expect a hands-on driving experience as this route relies on local roads rather than major interstates. You will navigate through town centers using West Main Street and South Broadway Street before transitioning onto Highway 84. With a highway share of 0%, this is a turn-heavy local drive that demands your full attention behind the wheel. Because there are no long, uninterrupted stretches—even the longest segment on West Main Street is negligible—you should prepare for frequent adjustments to your speed and direction. This is a route for drivers who prefer a dynamic, engaging path over the monotony of high-speed transit.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 25 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US Highway 84 is the longest continuous segment at about 74.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US Highway 84 and I 10. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 75.2 miles in near US 84.
Route Complexity
8/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 16 significant decision points across 344 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 75.2 miles (US 84): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 81.7 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 141.3 miles (US 83 / South 7th Street): Lane positioning matters here.
Critical Maneuvers
5 of 16 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
6
75.2 mi into trip
|
~1h 16m in
|
US 84
Keep slight left at fork onto US 84 toward I 20 East, US 84 East: Abilene
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 20 East, US 84 East: Abilene
6
81.7 mi into trip
|
~1h 23m in
Take the exit toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 244
Toward SH 70 South, SH 70 Business: Sweetwater,...
6
141.3 mi into trip
|
~2h 29m in
|
US 83 / South 7th Street
Turn left onto US 83 / South 7th Street
Lane positioning matters here
Use the left lane.
8
229 mi into trip
|
~4h 3m in
|
US 83
Take the exit onto US 83 toward I 10 East: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the left lane.
Toward I 10 East: San Antonio
8
342.4 mi into trip
|
~5h 58m in
Take the exit toward Santa Rosa Street, Downtown
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 569C
Toward Santa Rosa Street, Downtown
Towns Along This Route
Between Post, TX and San Antonio, TX, road signs point toward Sh 70 South, Sh 70 Business: Sweetwater and San Angelo.
Sh 70 South
81.7 mi in
|
~1h 23m
Sh 70 Business: Sweetwater
81.7 mi in
|
~1h 23m
San Angelo
81.7 mi in
|
~1h 23m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| US Highway 84 | 74.6 mi | 1h 15m |
| I 10 | 71.7 mi | 1h 14m |
| Grassmeyer Street | 41.9 mi | 44m |
| US 83 | 40 mi | 38m |
| State Highway 153 | 29.5 mi | 33m |
| Ellis Street | 29.4 mi | 31m |
| South 7th Street | 16.5 mi | 18m |
| FM 2111 | 12.3 mi | 13m |
Longest stretch:
US Highway 84
— 74.6 mi, about 1h 15m
Turn-by-Turn Driving Directions
Step-by-step road directions between Post, TX and San Antonio, TX.
1
Start on West Main Street
171 ft
·
10 sec
·
West Main Street
2
Continue on West Main Street
467 ft
·
23 sec
·
West Main Street
3
Turn right onto US 84; US 380
0.5 mi
·
1 min
·
South Broadway Street
4
Continue on US 84
75 mi
·
1 hr 15 min
·
US Highway 84
5
Keep slight left at fork onto US 84
6.5 mi
·
6 min
·
US 84
Toward I 20 East, US 84 East: Abilene
6
Take the exit
0.1 mi
·
18 sec
Exit 244
Toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
7
Turn slight left onto Southwest Georgia Avenue
0.1 mi
·
16 sec
·
Southwest Georgia Avenue
8
Turn right onto TX 70
0.7 mi
·
1 min
·
Lamar Street
9
Continue on TX 70
10 mi
·
10 min
·
State Highway 70
10
Turn left onto TX 153
29 mi
·
33 min
·
State Highway 153
11
Turn right onto FM 2111
12 mi
·
13 min
·
FM 2111
12
Turn left onto TX 158
6.3 mi
·
7 min
·
TX 158
13
At end of road, turn right onto US 67; US 83
387 ft
·
18 sec
·
Hutchings Avenue
14
Turn left onto US 83
17 mi
·
18 min
·
South 7th Street
Use the left lane.
15
Continue on US 83
42 mi
·
44 min
·
Grassmeyer Street
16
Continue on US 83
29 mi
·
31 min
·
Ellis Street
17
Take the exit onto US 83
40 mi
·
38 min
·
US 83
Toward I 10 East: San Antonio
Use the left lane.
18
Continue on I 10
54 mi
·
54 min
·
I 10
Use the straight / slight right lanes.
19
Keep slight right at fork onto I 10; US 87
17 mi
·
19 min
·
I 10; US 87
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 10; US 87
1.7 mi
·
2 min
·
McDermott Freeway
21
Take the exit
0.5 mi
·
1 min
Exit 569C
Toward Santa Rosa Street, Downtown
Use the slight right lane.
22
Turn straight onto North Pecos-La Trinidad
0.2 mi
·
16 sec
·
North Pecos-La Trinidad
23
Keep slight right at fork onto North Pecos-La Trinidad
0.6 mi
·
1 min
·
North Pecos-La Trinidad
Use the straight lane.
24
Turn left onto Dolorosa Street
0.5 mi
·
55 sec
·
Dolorosa Street
Use the straight / left lanes.
25
Arrive at destination
Dolorosa Street
Trip Plan
To manage the 347.2-mile journey effectively, aim to depart early in the morning to avoid the fatigue that can come with constant turns. Since you have only one planned stop, use that break strategically to stretch your legs and refresh your focus, as the local road profile requires more mental effort than a standard interstate cruise. Keep your $52 fuel budget in mind when selecting your refueling spot, as local routes may offer fewer options than major corridors. Because the route is categorized as a single-day trip, your primary advantage is flexibility; you can easily adjust your pace to suit your comfort level without the pressure of a rigid multi-day schedule.
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 172 miles from Post, TX, or about 3h 3m into the drive.
The longest continuous stretch on this route runs about 74.6 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 80 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 172 miles or 3h 3m 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 56m
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 Post, 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 Post, TX
This is one driving day of about 344 miles and 6h 1m.
Your first comfortable stop window is around 80 miles from Post, 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 US Highway 84 for about 74.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 172 mi from Post, TX · 3h 3m into the drive
Mid-route town
Meal stop
172 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 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 172 miles from Post, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before US Highway 84 if your tank is already low. That segment runs about 74.6 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
$52.55 one way
$105.10 round trip
$3.88/gal
25.4 MPG avg
120 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $57.59 | $115.17 |
| premium | $4.59 | $62.18 | $124.35 |
| diesel | $5.64 | $76.42 | $152.85 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$53
Meals
$25–$50
Total
$78–$103
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 120.4 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $36 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 103.2 | 1 | $36.12 | $16.51 |
| Efficient EV | 86 | 0 | $30.10 | $13.76 |
| EV Truck/SUV | 137.6 | 1 | $48.16 | $22.02 |
Gas CO2
120 kg
EV CO2
40 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.
Destination
San Antonio, TX
Afternoon in San Antonio on Sunday
Local time
2:16 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
25 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 1m 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 Post, TX to San Antonio, TX covers 344 miles and takes about 6h 1m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US Highway 84, I 10, Grassmeyer Street. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 172 miles from Post, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $52.55 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.
This is a demanding drive. With 16 significant decision points across 344 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.
The main spots that need attention: at 75.2 miles (US 84): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 81.7 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 141.3 miles (US 83 / South 7th Street): Lane positioning matters here.
Between Post, TX and San Antonio, TX, road signs point toward Sh 70 South, Sh 70 Business: Sweetwater and San Angelo.
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