How far is Millsboro, DE from New Castle, DE?
The driving distance from Millsboro, DE to New Castle, DE is about 87.1 miles (140.1 km), with a travel time of about 01h 36m by car.
- The straight-line flight distance is about 75.4 miles (121.4 km).
- For a round trip, plan for roughly 03h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 36m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 and county seat of Kent County, Delaware, United States, and capital city of Delaware
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Millsboro and New Castle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Millsboro and New Castle.
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1
Start on Main Street
879 ft · 28 sec · Main Street
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2
Continue on John J Williams Highway
914 ft · 25 sec · John J Williams Highway
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3
Turn left onto Gravel Hill Road
13.8 mi · 21 min · Gravel Hill Road
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4
Continue on Isaacs Road
2.8 mi · 4 min · Isaacs Road
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5
At the end of the road, turn left onto Cedar Creek Road
5.2 mi · 8 min · Cedar Creek Road
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6
Turn right onto Wilkins Road
846 ft · 17 sec · Wilkins Road
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7
Continue on Cedar Neck Road
567 ft · 13 sec · Cedar Neck Road
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8
Take the ramp right
1492 ft · 41 sec
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9
Merge slight left onto Coastal Highway
2.2 mi · 3 min · Coastal Highway
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10
Continue on Milford Bypass
2.1 mi · 3 min · Milford Bypass
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11
Continue on Bay Road
14.5 mi · 19 min · Bay Road
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12
Continue on Korean War Veterans Memorial Highway
4.4 mi · 5 min · Korean War Veterans Memorial Highway
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13
Keep slight right to continue on Korean War Veterans Memorial Highway
27.6 mi · 32 min · Korean War Veterans Memorial Highway
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14
Keep slight left to continue on Korean War Veterans Memorial Highway
6.5 mi · 7 min · Korean War Veterans Memorial Highway
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15
Keep slight left to continue on US 13 North: New Castle, New Jersey, New York
4.6 mi · 7 min
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16
Turn right onto Frenchtown Road
1.3 mi · 2 min · Frenchtown Road
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17
Continue on Delaware Street
2938 ft · 52 sec · Delaware Street
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18
Turn slight right
68 m · 12 sec
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19
Continue on Delaware Street
136 m · 18 sec · Delaware Street
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20
Turn left onto East 6th Street
57 m · 6 sec · East 6th Street
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21
Turn right onto Cherry Street
32 m · 5 sec · Cherry Street
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22
Arrive at your destination
0 m · 1 sec · Cherry Street
Car Route Details
A richer read on the saved driving route between Millsboro and New Castle.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Korean War Veterans Memorial Highway
Keep slight right to continue on Korean War Veterans Memorial Highway
27.6 mi · 00h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny then Slight Chance Rain Showers leaving Millsboro and Chance Rain Showers near New Castle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Millsboro to New Castle?
The road trip is about 87.1 miles (140.1 km) and usually takes 01h 36m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Dover is a useful midpoint, sitting about 43.3 miles from Millsboro and 43.7 miles from New Castle.
How much longer is the road route than the straight-line distance?
The direct path is about 75.4 miles (121.4 km), while the road route adds roughly 11.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.54 one way or $25.09 round trip. Estimated CO2 is about 27.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Millsboro and Chance Rain Showers near New Castle.
Stop Ideas Near Dover
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 Dover.
Dover, Delaware
Newark
Easton Airport, Maryland
Wilmington station
Flight Path Map
This map shows the direct air route between Millsboro and New Castle. Straight-line distance: 75.42 mi (121.38 km).
#1 Millsboro
Town of the United States
| Population | 4,665 |
| Coordinates | 38.5915000, -75.2913000 |
| Altitude | 7 |
| Country | United States |
#2 New Castle
City in Delaware
| Population | 5,394 |
| Coordinates | 39.6620600, -75.5663100 |
| Altitude | 3 |
| Country | United States |
End: Cherry Street (-75.566097, 39.662211)
Estimated Travel Time
Distance: 140 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 54m |
| 40 mph (64.37 km/h) | 02h 10m |
| 50 mph (80.47 km/h) | 01h 44m |
| 60 mph (96.56 km/h) | 01h 27m |
| 70 mph (112.65 km/h) | 01h 14m |
| 80 mph (129 km/h) | 01h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $12.54 | $25.09 |
| Mid-grade | $4.60 | $14.12 | $28.24 |
| Premium | $4.95 | $15.21 | $30.42 |
| Diesel | $5.98 | $18.36 | $36.72 |
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 Delaware · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.