Origin
Mercedes, TX
Afternoon in Mercedes on Sunday
Local time
2:20 PM
CDT
Current temp
72°F
Unavailable
Live forecast
Trip from Mercedes, TX to Houston, TX
Drive Time
6h 49m
Distance
341.1 mi
549 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$52
one way
Mercedes, TX
Pixabay
Houston, TX
Trace Hudson
Trip Overview
Driving from Mercedes to Houston covers 340.8 miles and typically takes about 5 hours and 28 minutes. Because this falls well within a single day of travel, you can easily complete the journey in one sitting without needing an overnight stop. Budgeting approximately $51 for fuel should cover your needs for the trip. You will stay within the Great Plains region for the duration of your travel as you head north. This route is best suited for those looking for a direct, manageable drive between these two Texas locations. It is a straightforward trip that relies on a mix of local roads and major highways to get you to your destination efficiently.
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
170.6 miles from Mercedes, TX
A natural place for your longest stop of the day , about 3h 29m into the drive .
Drive Character
Expect a turn-heavy local drive rather than a monotonous interstate cruise on this 340.8-mile journey. Your path involves navigating a combination of Expressway 83, I-69E North, and Highway 77 to reach Houston. Because the route relies on a variety of road types, you will experience frequent transitions rather than one long, uninterrupted stretch of pavement. This shifting road environment requires you to stay alert behind the wheel as you move through different local road segments. The lack of a high highway percentage means you should anticipate varying speed limits and more frequent interactions with local traffic patterns along the way.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 36 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
U.S. Highway 77 is the longest continuous segment at about 112.4 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on U.S. Highway 77 and US Highway 59 South. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.5 miles in near I 2; US 83.
Route Complexity
10/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 23 significant decision points across 341.1 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 1.5 miles (I 2; US 83): Merge point - match speed before joining. Lane positioning matters here; at 12.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 139.1 miles (US 77): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 23 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
1.5 mi into trip
|
~2m in
|
I 2; US 83
Merge onto I 2; US 83
Merge point - match speed before joining. Lane positioning matters here
Use the none lane.
9
12.5 mi into trip
|
~14m in
Keep slight left at fork toward I 69E North, US 77: Raymondville, Corpus Christi
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Exit 176
Toward I 69E North, US 77: Raymondville, Corpus...
7
139.1 mi into trip
|
~2h 52m in
|
US 77
Take the exit onto US 77 toward Sinton, Victoria
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the none lane.
Toward Sinton, Victoria
8
338.3 mi into trip
|
~6h 43m in
Keep slight left at fork toward Richmond Avenue, Downtown via Louisiana Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward Richmond Avenue, Downtown via Louisiana...
7
339.2 mi into trip
|
~6h 45m in
Take the exit toward Downtown, Louisiana Street
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.
Toward Downtown, Louisiana Street
Towns Along This Route
Between Mercedes, TX and Houston, TX, road signs point toward Sinton and Victoria.
Sinton
139.1 mi in
|
~2h 52m
|
via US 77
Victoria
139.1 mi in
|
~2h 52m
|
via US 77
Main Roads
| Road | Distance | Duration |
|---|---|---|
| U.S. Highway 77 | 112.4 mi | 2h 3m |
| US Highway 59 South | 88.6 mi | 1h 38m |
| US 77 | 37.6 mi | 44m |
| United States Highway 77 | 33 mi | 37m |
| Southwest Freeway | 32.6 mi | 37m |
| I 2 | 11 mi | 11m |
| County Road 79 | 4 mi | 15m |
| Driscoll Bypass | 2.3 mi | 2m |
Longest stretch:
U.S. Highway 77
— 112.4 mi, about 2h 3m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mercedes, TX and Houston, TX.
1
Start on South Texas Avenue
0.4 mi
·
49 sec
·
South Texas Avenue
2
Turn right onto Expressway 83
0.8 mi
·
1 min
·
Expressway 83
3
Take the ramp
0.3 mi
·
37 sec
4
Merge onto I 2; US 83
11 mi
·
11 min
·
I 2; US 83
Use the none lane.
5
Keep slight left at fork
1.2 mi
·
2 min
Exit 176
Toward I 69E North, US 77: Raymondville, Corpus Christi
Use the slight left lane.
6
Merge onto I 69E; US 77
88 mi
·
1 hr 37 min
·
U.S. Highway 77
Use the none lane.
7
Keep slight left at fork
0.2 mi
·
14 sec
8
Merge onto I 69E; US 77
1.2 mi
·
1 min
·
I 69E; US 77
9
Continue on U.S. Highway 77
12 mi
·
12 min
·
U.S. Highway 77
10
Take the exit
0.3 mi
·
34 sec
11
Turn straight onto US Highway 77 Frontage Road
485 ft
·
17 sec
·
US Highway 77 Frontage Road
12
Turn right onto County Road 10
1.0 mi
·
4 min
·
County Road 10
13
Turn left onto County Road 79
4.0 mi
·
15 min
·
County Road 79
14
Turn left onto County Road 18
0.2 mi
·
43 sec
·
County Road 18
15
Turn sharp right
1.1 mi
·
2 min
16
Take the ramp
0.4 mi
·
57 sec
17
Merge onto US 77
2.3 mi
·
2 min
·
Driscoll Bypass
18
Continue on US 77
13 mi
·
14 min
·
U.S. Highway 77
19
Merge onto I 37; US 77; I 69E
1.4 mi
·
1 min
·
I 37; US 77; I 69E
20
Keep slight left at fork
0.8 mi
·
50 sec
21
Continue on I 37; US 77; I 69E
463 ft
·
5 sec
·
I 37; US 77; I 69E
22
Take the exit onto US 77
38 mi
·
44 min
·
US 77
Toward Sinton, Victoria
Use the none lane.
23
Turn slight right onto US 77
33 mi
·
37 min
·
United States Highway 77
Use the none lane.
24
Keep slight left at fork onto Spur 91
1.5 mi
·
1 min
·
Spur 91
25
Merge onto US 59
89 mi
·
1 hr 38 min
·
US Highway 59 South
Use the none lane.
26
Take the exit
0.3 mi
·
37 sec
27
Continue on 59 Northbound Frontage Road
1.6 mi
·
2 min
·
59 Northbound Frontage Road
28
Continue on this road
0.4 mi
·
58 sec
·
this road
29
Continue on US 59 Northbound Frontage Road
2.0 mi
·
4 min
·
US 59 Northbound Frontage Road
30
Continue on Southwest Freeway Frontage Road
1.3 mi
·
2 min
·
Southwest Freeway Frontage Road
31
Take the ramp
0.2 mi
·
31 sec
Toward I 69 North, US 59 North
32
Merge onto I 69; US 59
33 mi
·
37 min
·
Southwest Freeway
Use the none / straight / slight right lanes.
33
Keep slight left at fork
0.9 mi
·
1 min
Toward Richmond Avenue, Downtown via Louisiana Street
Use the slight left lane.
34
Take the exit
155 ft
·
3 sec
Toward Downtown, Louisiana Street
Use the straight / slight right lanes.
35
Continue on Louisiana Street
1.9 mi
·
4 min
·
Louisiana Street
Use the straight / left / none lanes.
36
Arrive at destination
Louisiana Street
Trip Plan
To keep your 5-hour and 28-minute drive as smooth as possible, plan for at least one dedicated stop to stretch and refuel. Since you are looking at a $51 fuel cost, filling up before you leave Mercedes can help you avoid higher prices in more remote sections of the trip. Leaving early in the morning is your best bet to avoid potential congestion as you approach the Houston area. Keep a close eye on your navigation, as the transition between Expressway 83, I-69E, and Highway 77 requires careful attention to signage. Flexibility is your biggest advantage here, so feel free to adjust your pace if you encounter unexpected traffic on the non-highway portions of the route.
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 170.6 miles from Mercedes, TX, or about 3h 29m into the drive.
The longest continuous stretch on this route runs about 112.4 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 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 170.6 miles or 3h 29m 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 33m
Traffic, exits, and arrival timing usually matter more near Houston, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Mercedes, 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 Mercedes, TX
This is one driving day of about 341.1 miles and 6h 49m.
Your first comfortable stop window is around 80 miles from Mercedes, 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 U.S. Highway 77 for about 112.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 170.6 mi from Mercedes, TX · 3h 29m into the drive
Mid-route town
Meal stop
171 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 170.6 miles from Mercedes, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before U.S. Highway 77 if your tank is already low. That segment runs about 112.4 miles.
Arriving in Houston, TX
The final approach into Houston, 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 Houston, 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
$52.11 one way
$104.21 round trip
$3.88/gal
25.4 MPG avg
119 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $57.10 | $114.20 |
| premium | $4.59 | $61.65 | $123.31 |
| diesel | $5.64 | $75.78 | $151.56 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$52
Meals
$25–$50
Total
$77–$102
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 119.3 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $36 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 102.3 | 1 | $35.82 | $16.37 |
| Efficient EV | 85.3 | 0 | $29.85 | $13.64 |
| EV Truck/SUV | 136.4 | 1 | $47.75 | $21.83 |
Gas CO2
119 kg
EV CO2
40 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
Houston, TX
Afternoon in Houston on Sunday
Local time
2:20 PM
CDT
Current temp
70°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
2 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
6h 49m 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 Mercedes, TX to Houston, TX covers 341.1 miles and takes about 6h 49m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are U.S. Highway 77, US Highway 59 South, US 77. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 170.6 miles from Mercedes, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $52.11 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 23 significant decision points across 341.1 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 1.5 miles (I 2; US 83): Merge point - match speed before joining. Lane positioning matters here; at 12.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 139.1 miles (US 77): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Mercedes, TX and Houston, TX, road signs point toward Sinton and Victoria.
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