This 335.3-mile drive from Fort Worth, TX to Port O'Connor, TX is designed for a single, focused day of travel, taking approximately 6 hours and 37 minutes. You'll primarily be on US 77, making for a direct and efficient journey. With an estimated fuel cost of $51, this route is budget-friendly for a day trip. The predominantly highway-focused profile means you'll spend a good amount of time covering ground efficiently. As both your origin and destination are within the Great Plains region, expect a consistent landscape throughout your travels. This trip is well-suited for those who want to reach their destination without overnight stops.
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
167.7 miles from Fort Worth, TX
A natural place for your longest stop of the day
, about 3h 4m into the drive
.
Main Roads
Road
Distance
Duration
US 77
120.2 mi
2h 20m
South Freeway
82.3 mi
1h 25m
United States Highway 77
44.5 mi
53m
Robinson Drive
29.5 mi
33m
Port Lavaca Drive
21.3 mi
25m
FM 1289
11.2 mi
19m
State Highway 185 East
6.9 mi
12m
North Jack Kultgen Expressway
4.3 mi
4m
Longest stretch:
US 77
— 120.2 mi, about 2h 20m
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Worth, TX and Port O'Connor, TX.
1
Start on South Freeway
174 ft·3 sec·South Freeway
2
Take the ramp
0.3 mi·33 sec
Toward I 35W SouthUse the straight / slight left lanes.
3
Merge onto I 35W
82 mi·1 hr 25 min·South Freeway
Use the straight / slight right lanes.
4
Continue on I 35; US 77
4.3 mi·4 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
5
Take the exit
0.2 mi·30 sec
Exit 333AToward Loop 396
6
Turn straight onto South Jack Kultgen Expressway
0.1 mi·24 sec·South Jack Kultgen Expressway
7
Turn left onto Loop 396
0.1 mi·19 sec·South Valley Mills Drive
8
Enter roundabout onto Robinson Drive
125 ft·5 sec·Robinson Drive
9
Continue on Robinson Drive
29 mi·33 min·Robinson Drive
Use the straight / left lanes.
10
Continue on US 77
19 mi·21 min·US 77
11
Turn left onto US 77; US 190; TX 36
0.3 mi·19 sec·East 4th Street
12
Continue on US 77; US 190; TX 36
0.2 mi·16 sec·Kemp Street
13
Continue on US 77; US 190; TX 36
2.9 mi·3 min·East 1st Street
14
Take the exit onto US 77
101 mi·1 hr 58 min·US 77
15
Turn right onto US 77; US 90 Alt
0.3 mi·20 sec·West 4th Street
16
Continue on US 77; US 90 Alt
0.4 mi·29 sec·Fairwinds Street
17
Turn left onto US 77
45 mi·53 min·United States Highway 77
Use the straight / left lanes.
18
Turn left onto US 87
0.3 mi·30 sec·East Goodwin Avenue
Use the left lane.
19
Continue on US 87
21 mi·25 min·Port Lavaca Drive
20
Keep slight left at fork onto US 87
4.1 mi·4 min·US 87
21
Turn right onto FM 1090
0.8 mi·1 min·Alcoa Drive
22
Turn right onto TX 238
3.1 mi·5 min·West Austin Street
23
Continue on TX 238
1.0 mi·1 min·TX 238
24
Turn left onto FM 1289
11 mi·19 min·FM 1289
25
At end of road, turn left onto TX 185
6.9 mi·12 min·State Highway 185 East
26
Continue on TX 185
1.0 mi·1 min·Adams Avenue
27
Turn right onto TX 185
91 ft·2 sec·2nd Street
28
Arrive at destination
TX 185
Trip Plan
To make the most of this 6-hour and 37-minute drive, consider an early morning departure from Fort Worth to maximize daylight and minimize traffic. With the longest stretch being over 120 miles, plan for your single recommended stop strategically, perhaps around the halfway point or where you anticipate needing a break. Keep an eye on your fuel levels, especially before embarking on the longer segments of US 77. Given the highway-focused nature, you'll likely find ample services, but it's always wise to top off when you have the opportunity. This route is manageable in one day, so flexibility with your stop is key.
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 167.7 miles from Fort Worth, TX, or about 3h 4m into the drive.
The longest continuous stretch on this route runs about 120.2 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 74 miles or 1h 17m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 167.7 miles or 3h 4m 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 11m
Traffic, exits, and arrival timing usually matter more near Port O'Connor, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Fort Worth, 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 Fort Worth, TX
This is one driving day of about 335.3 miles and 6h 37m.
Your first comfortable stop window is around 74 miles from Fort Worth, 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 77 for about 120.2 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 17
5 decision points cluster between mile 0 and 285.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in
Take the ramp toward I 35W South
Lane positioning matters here
Use the straight / slight left lanes.
Toward I 35W South
5
0.3 mi into trip|~0m in|I 35W / South Freeway
Merge onto I 35W / South Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
86.8 mi into trip|~1h 30m in
Take the exit toward Loop 396
Exit ramp - move to the correct lane early
Exit 333A
Toward Loop 396
5
87.2 mi into trip|~1h 31m in|Loop 396 / South Valley Mills Drive
Turn left onto Loop 396 / South Valley Mills Drive
Navigation decision point
6
285.6 mi into trip|~5h 24m in|US 87 / East Goodwin Avenue
Turn left onto US 87 / East Goodwin Avenue
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$50.66 one way
$101.33 round trip
$3.84/gal25.4 MPG avg117 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$55.46
$110.91
premium
$4.54
$59.87
$119.73
diesel
$5.61
$74.03
$148.06
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$51
Meals
$25–$50
Total
$76–$101
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 117.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $35 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
100.6
1
$35.21
$16.09
Efficient EV
83.8
0
$29.34
$13.41
EV Truck/SUV
134.1
1
$46.94
$21.46
Gas CO2
117 kg
EV CO2
39 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 as of Apr 18, 2026
Origin
Fort Worth, TX
Late night
in Fort Worth on Tuesday
Local time
3:54 AM
CDT
Current temp
55°F
Mostly Cloudy then Chance Showers And Thunderstorms
SSW 15 mph63% chanceLive forecast
Special Weather Statement
Special Weather Statement issued April 17 at 11:07PM CDT by NWS Norman OK
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued April 17 at 10:45PM CDT until April 17 at 11:30PM CDT by NWS Norman OK
Destination
Port O'Connor, TX
Late night
in Port O'Connor on Tuesday
Local time
3:54 AM
CDT
Current temp
78°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
23 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 37m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
4 mi from route
~11 min detour
Free
near mile 80.9
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 drive for 82% of this 335.3-mile route. The character of the road is largely dictated by US 77, which will carry you for the majority of the journey. You'll encounter a significant uninterrupted stretch of 120.2 miles on US 77, indicating long, consistent periods of driving. This means you'll be covering significant distances with relative ease, characteristic of a dedicated highway route designed for efficient travel rather than winding scenic byways. The drive will likely feel direct and purpose-driven.
82% 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: 120.2 mi on US 77.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on US 77 and South Freeway. You will hit about 17 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 335.3 miles you will encounter 17 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start: Lane positioning matters here; at 0.3 miles (I 35W / South Freeway): Merge point - match speed before joining. Lane positioning matters here; at 86.8 miles: Exit ramp - move to the correct lane early.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Fort Worth, TX to Port O'Connor, TX, road signs begin pointing toward Loop 396 along the way.
Fort Worth is a city in the Prairies and Lakes region of Texas. With a population of approximately 1,020,000, it is Texas' 5th largest city. It is part of the Dallas-Fort Worth Metroplex, which has a population exceeding 6 million. Sometimes referred to as Cowtown, it is by far closer to its cowboy roots than neighboring Dallas. This article also covers North Richland Hills, a neighboring community.
Top landmarks
•Amon Carter Museum of American Art — art museum in Fort Worth, Texas
•Modern Art Museum of Fort Worth — art museum
•St. Patrick Cathedral in Fort Worth — church located in Fort Worth, Texas
Doable as a same-day drive at 6h 37m. Total distance: 335.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 37m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (82%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 120.2 miles on US 77. The full list of main roads is in the Roads section above.
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 is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Port O'Connor, 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 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start: Lane positioning matters here; at 0.3 miles (I 35W / South Freeway): Merge point - match speed before joining. Lane positioning matters here; at 86.8 miles: Exit ramp - move to the correct lane early.
Yes — Waco Mammoth National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.6 hours each way, a round trip means 13.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Port O'Connor, TX before the return drive.
