How far is Sea Cliff, NY from Smithtown, NY?
The driving distance from Sea Cliff, NY to Smithtown, NY is about 30.1 miles (48.4 km), with a travel time of about 00h 44m by car.
- The straight-line flight distance is about 23.2 miles (37.4 km).
- For a round trip, plan for roughly 01h 28m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 44m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Hamlet on Long Island, New York, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Sea Cliff and Smithtown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sea Cliff and Smithtown.
-
1
Start on Roslyn Avenue
16 m · 6 sec · Roslyn Avenue
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2
Turn right onto Sea Cliff Avenue
1.4 mi · 3 min · Sea Cliff Avenue
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3
Turn right onto Cedar Swamp Road
1.4 km · 1 min · Cedar Swamp Road
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4
Continue on Cedar Swamp Road
5.4 mi · 8 min · Cedar Swamp Road
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5
Continue on North Broadway
1.2 km · 1 min · North Broadway
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6
Take the ramp slight right toward N East: Hauppauge
621 ft · 15 sec
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7
Merge slight left onto Northern State Parkway
14.7 mi · 20 min · Northern State Parkway
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8
Take the exit slight right toward SM North: Kings Park
1052 ft · 26 sec
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9
Merge slight left onto Sagtikos State Parkway
152 m · 6 sec · Sagtikos State Parkway
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10
Continue on Sunken Meadow State Parkway
1.7 mi · 2 min · Sunken Meadow State Parkway
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11
Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown
1170 ft · 31 sec
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12
Turn slight right onto Jericho Turnpike
3.9 mi · 6 min · Jericho Turnpike
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13
Continue on West Main Street
3144 ft · 55 sec · West Main Street
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14
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Sea Cliff and Smithtown.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Northern State Parkway
Merge slight left onto Northern State Parkway
14.7 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Sea Cliff and Partly Cloudy near Smithtown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sea Cliff to Smithtown?
The road trip is about 30.1 miles (48.4 km) and usually takes 00h 44m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Melville is a useful midpoint, sitting about 14.9 miles from Sea Cliff and 15.2 miles from Smithtown.
How much longer is the road route than the straight-line distance?
The direct path is about 23.2 miles (37.4 km), while the road route adds roughly 6.9 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.71 one way or $9.43 round trip. Estimated CO2 is about 9.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Sea Cliff and Partly Cloudy near Smithtown.
Stop Ideas Near Melville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Babylon Town Hall Annex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Melville.
Stamford Transportation Center
New Rochelle station
Yonkers station
Bridgeport
Flight Path Map
This map shows the direct air route between Sea Cliff and Smithtown. Straight-line distance: 23.22 mi (37.37 km).
#1 Sea Cliff
Village in New York
| Population | 5,056 |
| Coordinates | 40.8489900, -73.6448500 |
| Altitude | 57 |
| Country | United States |
#2 Smithtown
Census-designated place in Suffolk County, New York
| Population | 110,876 |
| Coordinates | 40.8559300, -73.2006700 |
| Altitude | 18 |
| Country | United States |
End: West Main Street (-73.200729, 40.855811)
Estimated Travel Time
Distance: 48 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 00m |
| 40 mph (64.37 km/h) | 00h 45m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 25m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $4.71 | $9.43 |
| Mid-grade | $4.98 | $5.28 | $10.56 |
| Premium | $5.38 | $5.70 | $11.41 |
| Diesel | $6.51 | $6.90 | $13.80 |
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 New York · Oct 15, 2026