Origin
Kermit, TX
Afternoon in Kermit on Sunday
Local time
3:24 PM
CDT
Current temp
54°F
Unavailable
Live forecast
Trip from Kermit, TX to San Antonio, TX
Drive Time
6h 48m
Distance
383.3 mi
617 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$59
one way
Best Time to Leave
4 AM
6h 37m
★
6 AM
6h 49m
8 AM
7h 12m
10 AM
6h 57m
12 PM
6h 55m
3 PM
6h 58m
5 PM
7h 11m
8 PM
6h 42m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Kermit, TX
Thomas balabaud
San Antonio, TX
Wikimedia Commons
Trip Overview
Traveling from Kermit to San Antonio covers 383.3 miles of Texas landscape, typically requiring about 6 hours and 48 minutes of road time. Because this journey stays within the Great Plains, you can expect a consistent regional feel as you transition across the state. While it is technically possible to complete this trip in a single day, be prepared for a long stint behind the wheel. You should budget approximately $59 for fuel to account for the highway-heavy nature of the route. If you prefer a more relaxed pace, consider breaking the trip up, though most drivers find the direct highway route manageable as a single-day excursion.
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
191.6 miles from Kermit, TX
A natural place for your longest stop of the day , about 3h 40m into the drive .
Drive Character
This route is heavily focused on highway travel, with 87% of your journey spent on high-speed roads. You will rely primarily on I-10, FM 1601, and South Gaston Street to navigate your way toward San Antonio. The most significant portion of the drive is a 260-mile stretch on I-10, which demands sustained concentration and offers little in the way of frequent turns or local road variation. Expect a steady, interstate-focused experience that prioritizes efficiency over technical driving. The transition from local roads to the main highway artery defines the personality of this drive, moving from smaller connectors onto the vast, open stretches of the interstate.
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.
I 10 is the longest continuous segment at about 260 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 10 and FM 1601. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 362.5 miles in near I 10; US 87.
Route Complexity
8/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 18 significant decision points across 383.3 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 362.5 miles (I 10; US 87): Highway fork - watch signs carefully. Lane positioning matters here; at 380 miles (I 10; US 87 / McDermott Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 381.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 18 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
6
362.5 mi into trip
|
~6h 23m 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 none lane.
6
380 mi into trip
|
~6h 43m in
|
I 10; US 87 / McDermott Freeway
Keep slight right at fork onto I 10; US 87 / McDermott Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the none lane.
8
381.6 mi into trip
|
~6h 45m 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
6
382.2 mi into trip
|
~6h 46m in
|
North Pecos-La Trinidad
Keep slight right at fork onto North Pecos-La Trinidad
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
6
382.8 mi into trip
|
~6h 47m in
|
Dolorosa Street
Turn left onto Dolorosa Street
Lane positioning matters here
Use the straight / left lanes.
Towns Along This Route
On the drive from Kermit, TX to San Antonio, TX, road signs begin pointing toward Fm 1601: Penwell along the way.
Fm 1601: Penwell
43.3 mi in
|
~57m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 10 | 260 mi | 4h 10m |
| FM 1601 | 25.3 mi | 25m |
| South Gaston Street | 22.4 mi | 25m |
| South State Highway 18 | 20.1 mi | 29m |
| Farm to Market Road 305 | 18.1 mi | 26m |
| I 20 | 16.8 mi | 16m |
| TX 329 | 5.8 mi | 8m |
| US 190 | 4.2 mi | 6m |
Longest stretch:
I 10
— 260 mi, about 4h 10m
Turn-by-Turn Driving Directions
Step-by-step road directions between Kermit, TX and San Antonio, TX.
1
Start on this road
111 ft
·
13 sec
·
this road
2
Turn left onto TX 115
167 ft
·
10 sec
·
East Austin Street
3
Turn left onto TX 18
1.3 mi
·
1 min
·
South Poplar Street
4
Continue on TX 18
20 mi
·
29 min
·
South State Highway 18
5
Continue on TX 18
1.7 mi
·
2 min
·
North Main Avenue
6
Turn left onto I 20 Bus
3.0 mi
·
5 min
·
East Sealy Avenue
7
Take the ramp
0.4 mi
·
52 sec
Toward I 20 East: Odessa
8
Merge onto I 20
17 mi
·
16 min
·
I 20
9
Take the exit
0.2 mi
·
25 sec
Exit 101
Toward FM 1601: Penwell
10
Turn straight onto East Interstate 20 State Route South
0.2 mi
·
32 sec
·
East Interstate 20 State Route South
11
Turn right onto FM 1601
25 mi
·
25 min
·
FM 1601
12
At end of road, turn left onto TX 329
5.8 mi
·
8 min
·
TX 329
13
Turn right onto US 385
22 mi
·
25 min
·
South Gaston Street
14
Continue on FM 305
18 mi
·
26 min
·
Farm to Market Road 305
15
At end of road, turn right onto US 190
4.2 mi
·
6 min
·
US 190
16
At end of road, turn left onto I 10 Service Road
412 ft
·
8 sec
·
I 10 Service Road
17
Take the ramp
0.3 mi
·
43 sec
Toward I 10 East: San Antonio
18
Merge onto I 10
243 mi
·
3 hr 51 min
·
I 10
Use the none / 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 none lane.
20
Keep slight right at fork onto I 10; US 87
1.7 mi
·
2 min
·
McDermott Freeway
Use the none lane.
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 keep your drive smooth, plan for at least one dedicated stop to stretch your legs during the nearly seven-hour journey. Since the majority of your time will be spent on the 260-mile I-10 stretch, check your fuel levels before merging onto the interstate to avoid unnecessary detours in more remote areas. Departing early in the morning is your best strategy to avoid fatigue and arrive in San Antonio with daylight to spare. Given that the route is straightforward and heavily highway-dependent, you have the flexibility to adjust your itinerary if traffic patterns shift. Keep a close eye on the distance remaining during that long interstate segment, as it represents the bulk of your travel time.
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 191.6 miles from Kermit, TX, or about 3h 40m into the drive.
The longest continuous stretch on this route runs about 260 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 84 miles or 1h 42m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 191.6 miles or 3h 40m 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 46m
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 Kermit, 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 Kermit, TX
This is one driving day of about 383.3 miles and 6h 48m.
Your first comfortable stop window is around 84 miles from Kermit, 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 I 10 for about 260 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 191.6 mi from Kermit, TX · 3h 40m into the drive
Mid-route town
Meal stop
192 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 84 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 191.6 miles from Kermit, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 10 if your tank is already low. That segment runs about 260 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.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$58.55 one way
$117.10 round trip
$3.88/gal
25.4 MPG avg
134 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $64.17 | $128.33 |
| premium | $4.59 | $69.28 | $138.56 |
| diesel | $5.64 | $85.16 | $170.31 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$59
Meals
$25–$50
Total
$84–$109
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 134.1 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $40 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 115 | 1 | $40.25 | $18.40 |
| Efficient EV | 95.8 | 1 | $33.54 | $15.33 |
| EV Truck/SUV | 153.3 | 1 | $53.66 | $24.53 |
Gas CO2
134 kg
EV CO2
45 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.
Destination
San Antonio, TX
Afternoon in San Antonio on Sunday
Local time
3:24 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
27 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 48m 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 Kermit, TX to San Antonio, TX covers 383.3 miles and takes about 6h 48m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 10, FM 1601, South Gaston 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 191.6 miles from Kermit, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $58.55 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 18 significant decision points across 383.3 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.
The main spots that need attention: at 362.5 miles (I 10; US 87): Highway fork - watch signs carefully. Lane positioning matters here; at 380 miles (I 10; US 87 / McDermott Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 381.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
On the drive from Kermit, TX to San Antonio, TX, road signs begin pointing toward Fm 1601: Penwell along the way.
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