How far is Valley Stream, NY from Smithtown, NY?
The driving distance from Valley Stream, NY to Smithtown, NY is about 38.1 miles (61.3 km), with a travel time of about 00h 49m by car.
- The straight-line flight distance is about 29.7 miles (47.8 km).
- For a round trip, plan for roughly 01h 39m 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 00h 49m.
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.
Census-designated place in Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Valley Stream and Smithtown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Valley Stream and Smithtown.
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1
Start on South Central Avenue
789 ft · 18 sec · South Central Avenue
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2
Turn left onto West Sunrise Highway
11.7 mi · 15 min · West Sunrise Highway
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3
Take the exit slight right toward NY 135 North: Syosset
909 ft · 22 sec
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4
Merge slight left onto Seaford-Oyster Bay Expressway
1.7 mi · 2 min · Seaford-Oyster Bay Expressway
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5
Take the exit slight right toward SO East: East Islip
1657 ft · 47 sec
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6
Merge slight left onto Southern State Parkway
11 mi · 14 min · Southern State Parkway
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7
Keep slight left to continue on Southern State Parkway
1.3 km · 1 min · Southern State Parkway
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8
Keep slight left to continue on Sagtikos State Parkway
5.4 mi · 7 min · Sagtikos State Parkway
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9
Continue on Sunken Meadow State Parkway
1.7 mi · 2 min · Sunken Meadow State Parkway
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10
Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown
1170 ft · 31 sec
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11
Turn slight right onto Jericho Turnpike
3.9 mi · 6 min · Jericho Turnpike
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12
Continue on West Main Street
3144 ft · 55 sec · West Main Street
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13
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Valley Stream and Smithtown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
West Sunrise Highway
Turn left onto West Sunrise Highway
11.7 mi · 00h 15m
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 leaving Valley Stream and Sunny near Smithtown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Valley Stream to Smithtown?
The road trip is about 38.1 miles (61.3 km) and usually takes 00h 49m 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?
East Farmingdale is a useful midpoint, sitting about 18.8 miles from Valley Stream and 19.3 miles from Smithtown.
How much longer is the road route than the straight-line distance?
The direct path is about 29.7 miles (47.8 km), while the road route adds roughly 8.4 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 4:50 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.96 one way or $11.92 round trip. Estimated CO2 is about 11.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Valley Stream and Sunny near Smithtown.
Stop Ideas Near East Farmingdale
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 East Farmingdale.
Stamford Transportation Center
New Rochelle station
Yonkers station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Valley Stream and Smithtown. Straight-line distance: 29.69 mi (47.78 km).
#1 Valley Stream
Village in Nassau County, New York, United States of America
| Population | 37,196 |
| Coordinates | 40.6642700, -73.7084600 |
| Altitude | 5 |
| 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: 61 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 16m |
| 40 mph (64.37 km/h) | 00h 57m |
| 50 mph (80.47 km/h) | 00h 45m |
| 60 mph (96.56 km/h) | 00h 38m |
| 70 mph (112.65 km/h) | 00h 32m |
| 80 mph (129 km/h) | 00h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $5.96 | $11.92 |
| Mid-grade | $4.98 | $6.68 | $13.35 |
| Premium | $5.38 | $7.21 | $14.42 |
| Diesel | $6.51 | $8.72 | $17.44 |
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