How far is Sweetwater, TX from Plano, TX?
The driving distance from Sweetwater, TX to Plano, TX is about 243.3 miles (391.5 km), with a travel time of about 03h 33m by car.
- The straight-line flight distance is about 218.7 miles (352 km).
- For a round trip, plan for roughly 07h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 33m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Palo Pinto County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sweetwater and Plano.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sweetwater and Plano.
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1
Start on Lamar Street
32 m · 6 sec · Lamar Street
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2
Turn right onto East Broadway Street
2.6 mi · 5 min · East Broadway Street
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3
Keep slight left to continue on I 20 East: Abilene
1588 ft · 25 sec
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4
Merge slight right
173.1 mi · 2 hr 55 min
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5
Keep slight left to continue on West Freeway
5.6 mi · 6 min · West Freeway
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6
Take the exit slight right toward I 820 North
1.4 km · 2 min
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7
Merge slight left onto Jim Wright Freeway
12.6 mi · 14 min · Jim Wright Freeway
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8
Continue on Northeast Loop
1398 ft · 18 sec · Northeast Loop
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9
Keep slight left to continue on I 820 TEXpress
6.9 mi · 7 min · I 820 TEXpress
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10
Continue on SH 121/183 TEXpress
4.4 mi · 4 min · SH 121/183 TEXpress
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11
Continue on SH 183 TEXpress
11.7 mi · 12 min · SH 183 TEXpress
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12
Keep slight left to continue on Loop 12 TEXpress
2.6 mi · 3 min · Loop 12 TEXpress
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13
Merge slight left onto North Walton Walker Boulevard
1.3 km · 54 sec · North Walton Walker Boulevard
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14
Merge slight right onto North Stemmons Freeway
2.1 mi · 3 min · North Stemmons Freeway
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15
Take the exit slight right toward I 635 East
2673 ft · 50 sec
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16
Merge slight left onto Lyndon B Johnson Freeway
4.4 mi · 5 min · Lyndon B Johnson Freeway
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17
Continue on Lyndon B. Johnson Freeway
2.6 mi · 3 min · Lyndon B. Johnson Freeway
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18
Take the exit slight right toward US 75 North, US 75 South: McKinney, Dallas
1825 ft · 22 sec
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19
Keep slight left to continue on US 75 North: McKinney
1.4 km · 1 min
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20
Merge slight left onto North Central Expressway
5.3 mi · 6 min · North Central Expressway
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21
Take the exit slight right toward Plano Parkway, 15th Street
2162 ft · 53 sec
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22
Turn straight onto North Central Expressway
1.4 mi · 2 min · North Central Expressway
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23
Turn right onto East 15th Street
3101 ft · 1 min · East 15th Street
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24
Arrive at your destination
0 m · 1 sec · East 15th Street
Car Route Details
A richer read on the saved driving route between Sweetwater and Plano.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 20 East
Merge slight right
173 mi · 02h 55m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Sweetwater and Slight Chance Showers And Thunderstorms near Plano.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sweetwater to Plano?
The road trip is about 243.3 miles (391.5 km) and usually takes 03h 33m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Mingus is a useful midpoint, sitting about 120 miles from Sweetwater and 123.3 miles from Plano.
How much longer is the road route than the straight-line distance?
The direct path is about 218.7 miles (352 km), while the road route adds roughly 24.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:52 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.42 one way or $64.85 round trip. Estimated CO2 is about 76.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Sweetwater and Slight Chance Showers And Thunderstorms near Plano.
Stop Ideas Near Mingus
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mingus.
Cleburne
Fort Worth Central Station
Flight Path Map
This map shows the direct air route between Sweetwater and Plano. Straight-line distance: 218.73 mi (352.01 km).
#1 Sweetwater
City in Texas, United States
| Population | 10,535 |
| Coordinates | 32.4709500, -100.4059400 |
| Altitude | 661 |
| Country | United States |
#2 Plano
The second most populous city in Texas and the center of the Dallas-Fort Worth metropolitan area.
| Population | 291,296 |
| Coordinates | 33.0198400, -96.6988900 |
| Altitude | 203 |
| Country | United States |
End: East 15th Street (-96.698873, 33.019694)
Estimated Travel Time
Distance: 391 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 06m |
| 40 mph (64.37 km/h) | 06h 04m |
| 50 mph (80.47 km/h) | 04h 51m |
| 60 mph (96.56 km/h) | 04h 03m |
| 70 mph (112.65 km/h) | 03h 28m |
| 80 mph (129 km/h) | 03h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $32.42 | $64.85 |
| Mid-grade | $4.25 | $36.48 | $72.96 |
| Premium | $4.59 | $39.39 | $78.78 |
| Diesel | $3.99 | $34.26 | $68.52 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.