How far is Smithtown, NY from Plattsburgh, NY?
The driving distance from Smithtown, NY to Plattsburgh, NY is about 345.1 miles (555.4 km), with a travel time of about 07h 01m by car.
- The straight-line flight distance is about 265.9 miles (427.9 km).
- For a round trip, plan for roughly 14h 03m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
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 07h 01m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Town in New York, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Smithtown and Plattsburgh.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown and Plattsburgh.
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1
Start on West Main Street
2964 ft · 52 sec · West Main Street
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2
Keep slight left to continue on West Main Street
55 m · 5 sec · West Main Street
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3
Continue on Jericho Turnpike
4 mi · 6 min · Jericho Turnpike
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4
Take the ramp slight right toward SM South: Bay Shore
1110 ft · 27 sec
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5
Merge slight left onto Sunken Meadow State Parkway
1.9 mi · 2 min · Sunken Meadow State Parkway
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6
Continue on Sagtikos State Parkway
1.2 km · 50 sec · Sagtikos State Parkway
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7
Take the exit slight right toward I 495 West: New York
688 ft · 17 sec
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8
Keep slight left to continue on I 495 West: New York
955 ft · 23 sec
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9
Turn straight onto LIE North Service Road
1987 ft · 34 sec · LIE North Service Road
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10
Turn straight onto North Service Road
770 ft · 14 sec · North Service Road
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11
Take the ramp slight left toward I 495 West: New York
879 ft · 22 sec
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12
Merge slight left onto Long Island Expressway
24.8 mi · 34 min · Long Island Expressway
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13
Take the exit slight right toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport
1267 ft · 27 sec
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14
Keep slight right to continue on Cross Island Parkway North, Whitestone Bridge
1604 ft · 38 sec
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15
Merge slight left onto Cross Island Parkway
3.1 mi · 5 min · Cross Island Parkway
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16
Take the exit slight right toward I 295 North: Throgs Neck Bridge, Bronx, New England
2905 ft · 1 min
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17
Merge slight left onto Throgs Neck Bridge
1.8 mi · 3 min · Throgs Neck Bridge
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18
Continue on Throgs Neck Expressway
1.1 km · 1 min · Throgs Neck Expressway
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19
Keep slight left to continue on Cross Bronx Expressway
6.6 mi · 9 min · Cross Bronx Expressway
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20
Keep slight left to continue on Trans-Manhattan Expressway
1.1 km · 1 min · Trans-Manhattan Expressway
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21
Continue on George Washington Bridge (upper level)
3167 ft · 60 sec · George Washington Bridge (upper level)
-
22
Continue straight
2659 ft · 48 sec
-
23
Keep slight left
3214 ft · 39 sec
-
24
Keep slight left
559 ft · 9 sec
-
25
Take the exit slight right toward I 95 South, NJTP South: Hackensack
1270 ft · 23 sec
-
26
Keep slight right to continue on NJ 4 West: Paramus
970 ft · 24 sec
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27
Merge slight right
6.7 mi · 9 min
-
28
Take the exit straight toward GSP South, NJ 17 South, GSP North, NJ 17 North: Grand State Plaza, Newark, Mahwah
951 ft · 26 sec
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29
Keep slight right to continue on NJ 17 North: Mahwah
1302 ft · 37 sec
-
30
Merge slight left
3.3 mi · 4 min
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31
Continue straight
7.3 mi · 10 min
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32
Continue straight
1.2 km · 50 sec
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33
Continue straight
3.3 mi · 4 min
-
34
Continue straight
877 ft · 11 sec
-
35
Keep slight left to continue on I 87 North, NY 17 North, New York State Thruway North: Albany
111.7 mi · 2 hr 9 min
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36
Take the exit slight right toward I 787, US 9W: Albany, Troy
1351 ft · 50 sec
-
37
Continue straight
9 mi · 12 min
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38
Keep slight left
1863 ft · 29 sec
-
39
Take the exit slight right toward NY 7 West: Schenectady, Saratoga Springs
1472 ft · 50 sec
-
40
Merge slight left
3.1 mi · 4 min
-
41
Take the exit slight right toward I 87 North: Saratoga Springs, Glens Falls
1.3 km · 2 min
-
42
Merge slight left onto Adirondack Northway
143.5 mi · 2 hr 46 min · Adirondack Northway
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43
Take the exit slight right toward NY 22: Plattsburgh International Airport
1202 ft · 30 sec
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44
Turn right
2.4 mi · 4 min
-
45
At the end of the road, turn left onto South Peru Street
558 ft · 12 sec · South Peru Street
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46
Turn left onto South Catherine Street
1.4 mi · 2 min · South Catherine Street
-
47
Turn right onto Broad Street
736 ft · 18 sec · Broad Street
-
48
Turn left onto Oak Street
1522 ft · 30 sec · Oak Street
-
49
Turn right onto Cornelia Street
713 ft · 14 sec · Cornelia Street
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50
Arrive at your destination
0 m · 1 sec · Cornelia Street
Car Route Details
A richer read on the saved driving route between Smithtown and Plattsburgh.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Adirondack Northway
Merge slight left onto Adirondack Northway
143 mi · 02h 46m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Partly Cloudy leaving Smithtown and Mostly Sunny near Plattsburgh.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithtown to Plattsburgh?
The road trip is about 345.1 miles (555.4 km) and usually takes 07h 01m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Coeymans is a useful midpoint, sitting about 172.2 miles from Smithtown and 172.9 miles from Plattsburgh.
How much longer is the road route than the straight-line distance?
The direct path is about 265.9 miles (427.9 km), while the road route adds roughly 79.2 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 6:00 AM to 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $54.18 one way or $108.35 round trip. Estimated CO2 is about 108.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Smithtown and Mostly Sunny near Plattsburgh.
Stop Ideas Near Coeymans
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 Coeymans.
Albany–Rensselaer
Hudson
Schenectady
Joseph Scelsi Intermodal Transportation Center
Flight Path Map
This map shows the direct air route between Smithtown and Plattsburgh. Straight-line distance: 265.87 mi (427.88 km).
#1 Smithtown
Census-designated place in Suffolk County, New York
| Population | 110,876 |
| Coordinates | 40.8559300, -73.2006700 |
| Altitude | 18 |
| Country | United States |
#2 Plattsburgh
City in the state of New York, USA
| Population | 11,823 |
| Coordinates | 44.6994900, -73.4529100 |
| Altitude | 42 |
| Country | United States |
End: Plattsburgh (-73.45291, 44.69949)
Estimated Travel Time
Distance: 555 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 29m |
| 40 mph (64.37 km/h) | 08h 37m |
| 50 mph (80.47 km/h) | 06h 54m |
| 60 mph (96.56 km/h) | 05h 45m |
| 70 mph (112.65 km/h) | 04h 55m |
| 80 mph (129 km/h) | 04h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $54.18 | $108.35 |
| Mid-grade | $4.98 | $60.68 | $121.36 |
| Premium | $5.38 | $65.55 | $131.11 |
| Diesel | $6.51 | $79.28 | $158.56 |
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