How far is New Castle, DE from Seaford, DE?
The driving distance from New Castle, DE to Seaford, DE is about 80.8 miles (130 km), with a travel time of about 01h 32m by car.
- The straight-line flight distance is about 70.6 miles (113.6 km).
- For a round trip, plan for roughly 03h 04m 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 32m.
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.
Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between New Castle and Seaford.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Castle and Seaford.
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1
Start on Cherry Street
90 m · 15 sec · Cherry Street
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2
Turn right onto East 5th Street
56 m · 12 sec · East 5th Street
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3
Turn right onto Delaware Street
953 ft · 32 sec · Delaware Street
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4
Continue on Delaware Street
3053 ft · 54 sec · Delaware Street
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5
Continue on Frenchtown Road
1.4 mi · 2 min · Frenchtown Road
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6
Turn left onto North Dupont Highway
1.4 km · 1 min · North Dupont Highway
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7
Keep slight left to continue on South Dupont Highway
9.3 mi · 12 min · South Dupont Highway
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8
Keep slight left to continue on Korean War Veterans Memorial Highway
1518 ft · 20 sec · Korean War Veterans Memorial Highway
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9
Keep slight left to continue on Korean War Veterans Memorial Highway
27.9 mi · 32 min · Korean War Veterans Memorial Highway
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10
Keep slight left to continue on Korean War Veterans Memorial Highway
3 mi · 3 min · Korean War Veterans Memorial Highway
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11
Keep slight right to continue on Puncheon Run Connector
2.1 mi · 3 min · Puncheon Run Connector
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12
Turn left onto South Dupont Highway
21.2 mi · 27 min · South Dupont Highway
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13
Continue on Sussex Highway
10.6 mi · 15 min · Sussex Highway
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14
Take the exit slight right
51 m · 5 sec
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15
Continue on Bridgeville Highway
2.6 mi · 4 min · Bridgeville Highway
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16
Continue on North Front Street
2242 ft · 49 sec · North Front Street
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17
Turn right onto High Street
675 ft · 40 sec · High Street
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18
Turn left onto South Pine Street
15 m · 2 sec · South Pine Street
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19
Arrive at your destination
0 m · 1 sec · South Pine Street
Car Route Details
A richer read on the saved driving route between New Castle and Seaford.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Korean War Veterans Memorial Highway
Keep slight left to continue on Korean War Veterans Memorial Highway
27.9 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.
Chance Rain Showers leaving New Castle and Chance Rain Showers near Seaford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Castle to Seaford?
The road trip is about 80.8 miles (130 km) and usually takes 01h 32m 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 40.3 miles from New Castle and 40.5 miles from Seaford.
How much longer is the road route than the straight-line distance?
The direct path is about 70.6 miles (113.6 km), while the road route adds roughly 10.2 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 3:26 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.65 one way or $23.29 round trip. Estimated CO2 is about 25.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around New Castle and Chance Rain Showers near Seaford.
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 New Castle and Seaford. Straight-line distance: 70.58 mi (113.58 km).
#1 New Castle
City in Delaware
| Population | 5,394 |
| Coordinates | 39.6620600, -75.5663100 |
| Altitude | 3 |
| Country | United States |
#2 Seaford
City in Delaware, United States
| Population | 8,246 |
| Coordinates | 38.6412300, -75.6110400 |
| Altitude | 7 |
| Country | United States |
End: South Pine Street (-75.610981, 38.641272)
Estimated Travel Time
Distance: 130 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 41m |
| 40 mph (64.37 km/h) | 02h 01m |
| 50 mph (80.47 km/h) | 01h 36m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 09m |
| 80 mph (129 km/h) | 01h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $11.65 | $23.29 |
| Mid-grade | $4.60 | $13.11 | $26.21 |
| Premium | $4.95 | $14.12 | $28.24 |
| Diesel | $5.98 | $17.04 | $34.09 |
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 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.