This 486.7-mile drive from Corpus Christi, TX to Post, TX will take approximately 8 hours and 27 minutes of pure driving time. Given the duration, it's best split over two days to allow for comfortable travel and rest. The route is primarily highway-focused, utilizing I-37, I-10, and US-84, with 80% of the journey on these main roads. You can expect to spend around $74 on fuel for this trip. Traveling across the Great Plains region in Texas, this drive offers a straightforward path through the state, ideal for those prioritizing efficiency.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
243.3 miles from Corpus Christi, TX
A natural place for your longest stop of the day
, about 4h 9m into the drive
.
Main Roads
Road
Distance
Duration
I 37
140.1 mi
2h 22m
I 10
98.7 mi
1h 37m
US 84
75.7 mi
1h 16m
Frisco Avenue
41.9 mi
44m
State Highway 153
29.5 mi
33m
North Main Street
29.3 mi
30m
Roberts Avenue
16.5 mi
18m
McDermott Freeway
15.5 mi
18m
Longest stretch:
I 37
— 140.1 mi, about 2h 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between Corpus Christi, TX and Post, TX.
1
Start on I 37
17 mi·17 min·I 37
Use the straight / slight right lanes.
2
Keep slight left at fork
1.3 mi·1 min
3
Continue on I 37
123 mi·2 hr 4 min·I 37
Use the straight / slight right lanes.
4
Take the exit
0.2 mi·27 sec
Exit 140BToward Cesar Estrada Chavez Boulevard, AlamodomeUse the slight right lane.
5
Turn left onto East César E. Chávez Boulevard
1.4 mi·3 min·East César E. Chávez Boulevard
Use the left / straight lanes.
6
Take the ramp
0.2 mi·31 sec
Toward I 10 West, I 35 North
7
Merge onto I 10; I 35; US 87
93 ft·1 sec·South Pan Am Expressway
8
Take the exit onto I 10; US 87
0.9 mi·1 min·McDermott Freeway
Exit 156Toward I 10 West, US 87 North: El PasoUse the straight / slight right lanes.
9
Keep slight left at fork onto I 10; US 87
15 mi·17 min·McDermott Freeway
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 10; US 87
99 mi·1 hr 37 min·I 10; US 87
Use the straight / slight left lanes.
11
Take the exit onto US 83
0.3 mi·44 sec·US 83
Exit 456Toward US 83 North, US 377: Junction, Menard
12
Turn right onto US 83; US 377
29 mi·30 min·North Main Street
Use the right lane.
13
Continue on US 83
42 mi·44 min·Frisco Avenue
14
Continue on US 83
17 mi·18 min·Roberts Avenue
15
Turn right onto US 67; US 83
387 ft·18 sec·Hutchings Avenue
Use the right lane.
16
Turn left onto TX 158
6.3 mi·7 min·North Broadway Street
Use the left lane.
17
Turn right onto FM 2111
12 mi·13 min·FM 2111
18
Turn left onto TX 153
29 mi·33 min·State Highway 153
19
Keep slight right at fork onto TX 153
19 ft·0 sec·State Highway 153
20
Turn right onto TX 70
10 mi·10 min·State Highway 70
21
Continue on TX 70
0.8 mi·1 min·Lamar Street
22
Turn left onto Northwest Georgia Avenue
0.1 mi·16 sec·Northwest Georgia Avenue
23
Take the ramp
340 ft·8 sec
Toward I 20 West: Midland
24
Merge onto I 20; US 84
6.0 mi·5 min·I 20; US 84
25
Take the exit onto US 84
0.3 mi·19 sec·US 84
Exit 238AToward US 84 West: Snyder, Lubbock
26
Keep slight left at fork onto US 84
75 mi·1 hr 16 min·US 84
27
Turn left onto West Main Street
298 ft·15 sec·West Main Street
28
Arrive at destination
West Main Street
Trip Plan
To make the most of this 8-hour and 27-minute drive, plan to break it into two days. Leaving early in the morning on your first day will allow you to cover a good portion of the 486.7 miles and reach a convenient stopping point. With only two recommended stops, be sure to plan your fuel and rest breaks strategically, especially considering the longest stretch of 140.1 miles. The estimated fuel cost is $74, so factoring that into your budget is wise. Keep an eye on the weather as you travel across the Great Plains.
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 243.3 miles from Corpus Christi, TX, or about 4h 9m into the drive.
The longest continuous stretch on this route runs about 140.1 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 107 miles or 1h 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 243.3 miles or 4h 9m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 243.3 miles or 4h 9m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 25m
Traffic, exits, and arrival timing usually matter more near Post, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Corpus Christi, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Corpus Christi, TX
Aim for roughly 243 miles and 4.2 hours of wheel time on this day.
Day 2
Finish the approach into Post, TX
Aim for roughly 243 miles and 4.2 hours of wheel time on this day.
Your first comfortable stop window is around 107 miles from Corpus Christi, TX.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 37 for about 140.1 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 22
5 decision points cluster between mile 141.4 and 257.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
141.4 mi into trip|~2h 23m in
Take the exit toward Cesar Estrada Chavez Boulevard, Alamodome
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 140B
Toward Cesar Estrada Chavez Boulevard, Alamodom...
8
143.2 mi into trip|~2h 28m in|I 10; US 87 / McDermott Freeway
Take the exit onto I 10; US 87 / McDermott Freeway toward I 10 West, US 87 North: El Paso
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 156
Toward I 10 West, US 87 North: El Paso
6
144.1 mi into trip|~2h 29m in|I 10; US 87 / McDermott Freeway
Keep slight left at fork onto I 10; US 87 / McDermott Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
158.7 mi into trip|~2h 46m in|I 10; US 87
Keep slight right at fork onto I 10; US 87
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
6
257.4 mi into trip|~4h 23m in|US 83
Take the exit onto US 83 toward US 83 North, US 377: Junction, Menard
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 456
Toward US 83 North, US 377: Junction, Menard
Fuel & Cost
Regular Gas
$73.54 one way
$147.08 round trip
$3.84/gal25.4 MPG avg170 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$80.50
$160.99
premium
$4.54
$86.90
$173.79
diesel
$5.61
$107.46
$214.91
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$74
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$204–$314
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 170.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $51 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
146
1
$51.10
$23.36
Efficient EV
121.7
1
$42.59
$19.47
EV Truck/SUV
194.7
2
$68.14
$31.15
Gas CO2
170 kg
EV CO2
57 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.
Forecast as of Apr 15, 2026
Origin
Corpus Christi, TX
Night
in Corpus Christi on Saturday
Local time
11:21 PM
CDT
Current temp
72°F
Unavailable
Live forecast
Destination
Post, TX
Night
in Post on Saturday
Local time
11:21 PM
CDT
Current temp
83°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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
11 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
8h 27m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
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.
San Antonio Missions National Historical Park
National Historical Park
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...
1 mi from route
~4 min detour
Free
near mile 134.3
Lyndon B. Johnson National Historical Park tells the story of our 36th president beginning with his ancestors until his final resting place on his beloved LBJ Ranch. This entire "circle of life" gives...
27 mi from route
~67 min detour
Free
near mile 184.6
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-focused experience for 80% of this 486.7-mile route, as you'll be on major interstates and US highways for the bulk of the journey. The longest uninterrupted stretch is a significant 140.1 miles on I-37, meaning you'll have long periods of consistent driving. While the primary roads are efficient, the change from interstate to US-84 will likely offer a shift in scenery and pace as you approach Post. This route is designed for steady progress rather than winding, scenic byways.
80% highway — fuel and pacing are the main things to plan.
28 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 140.1 mi on I 37.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 37 and I 10. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 141.4 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 22 significant decision points across 486.7 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 141.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 143.2 miles (I 10; US 87 / McDermott Freeway): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 144.1 miles (I 10; US 87 / McDermott Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Corpus Christi, TX and Post, TX, road signs point toward Alamodome, Menard and Lubbock.
Corpus Christi (called Corpus by the locals) is Texas's largest coastal city and the gateway to Padre Island. While Corpus Christi isn't on the way to much of anything except itself (and the islands off its coast), it offers enough to fill a visit in its own right, or a multi-day trip from San Antonio, Austin, or Houston. The name is Latin for "Body of Christ".
The longest stretch is about 140.1 miles on I 37. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 243 miles on day one.
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 Post, 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 2 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 141.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 143.2 miles (I 10; US 87 / McDermott Freeway): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 144.1 miles (I 10; US 87 / McDermott Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — San Antonio Missions National Historical Park and Lyndon B Johnson National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 8.5 hours each way, a round trip means 16.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Post, TX before the return drive.
