How far is Grand Island, NY from Smithtown, NY?
The driving distance from Grand Island, NY to Smithtown, NY is about 452 miles (727.5 km), with a travel time of about 07h 21m by car.
- The straight-line flight distance is about 332 miles (534.3 km).
- For a round trip, plan for roughly 14h 42m 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 21m.
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 Broome County, New York, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Sunny
Driving Route Map
The map below follows the saved road route between Grand Island and Smithtown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grand Island and Smithtown.
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1
Start on Colonial Drive
743 ft · 38 sec · Colonial Drive
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2
Turn left onto Homeland Drive
142 m · 26 sec · Homeland Drive
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3
Turn left onto Baseline Road
1.1 km · 2 min · Baseline Road
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4
Turn slight left onto Grand Island Boulevard
1.5 mi · 3 min · Grand Island Boulevard
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5
Enter the roundabout and take exit 2 toward Grand Island Boulevard
26 m · 2 sec · Grand Island Boulevard
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6
Exit the roundabout onto Grand Island Boulevard
58 m · 4 sec · Grand Island Boulevard
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7
Continue on South Parkway
917 ft · 18 sec · South Parkway
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8
Take the ramp slight left toward I 190 S
1722 ft · 42 sec
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9
Merge slight left onto Niagara Thruway
1.6 mi · 2 min · Niagara Thruway
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10
Take the exit slight right toward I 290 East: Tonawanda, Rochester
1993 ft · 49 sec
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11
Continue on Youngmann Expressway
9.5 mi · 13 min · Youngmann Expressway
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12
Keep slight left to continue on I 90 East: Albany
1 km · 57 sec
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13
Merge slight left onto New York State Thruway
99.4 mi · 1 hr 55 min · New York State Thruway
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14
Take the exit slight right toward NY 414: Waterloo, Clyde
2420 ft · 59 sec
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15
Keep slight right
100 m · 8 sec
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16
Continue on State Route 414
1557 ft · 35 sec · State Route 414
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17
Turn left
4.1 mi · 7 min
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18
At the end of the road, turn left onto Auburn Road
1.9 mi · 2 min · Auburn Road
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19
Continue on Clark Street Road
9.6 mi · 11 min · Clark Street Road
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20
Turn right onto State Street
69 m · 12 sec · State Street
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21
Turn left onto Dill Street
720 ft · 22 sec · Dill Street
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22
Continue on Loop Road
140 m · 17 sec · Loop Road
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23
Turn left onto Genesee Street
5.5 mi · 10 min · Genesee Street
-
24
Continue on West Genesee Street Road
2.2 mi · 5 min · West Genesee Street Road
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25
Turn right onto East Lake Street
2676 ft · 45 sec · East Lake Street
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26
Continue on East Lake Road
9.4 mi · 14 min · East Lake Road
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27
Continue on State Route 41
4.8 mi · 7 min · State Route 41
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28
Continue on East Lake Road
2904 ft · 49 sec · East Lake Road
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29
Continue on State Highway 41
9.8 mi · 14 min · State Highway 41
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30
Turn right onto North West Street
1.2 mi · 3 min · North West Street
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31
Take the ramp left
1.1 km · 1 min
-
32
Keep slight right to continue on I 81 South: Binghamton
1396 ft · 34 sec
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33
Merge slight left
45.4 mi · 54 min
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34
Keep slight right to continue on I 81 South: Scranton
53.4 mi · 1 hr 3 min
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35
Keep slight right to continue on I 84 East, I 380 South, US 6 East: Carbondale, Mt Pocono
1.2 km · 1 min
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36
Continue on I 84 East, I 380 South: Mount Pocono, Milford
3.7 mi · 5 min
-
37
Keep slight right to continue on I 380 South: Mount Pocono
23.6 mi · 26 min
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38
Keep slight left to continue on I 80 East: Stroudsburg
1 mi · 1 min
-
39
Merge slight right onto Keystone Shortway
80 mi · 1 hr 37 min · Keystone Shortway
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40
Keep slight right to continue on Christopher Columbus Highway
5.5 mi · 6 min · Christopher Columbus Highway
-
41
Keep slight left to continue on I 95 North: George Washington Bridge, New York City
1503 ft · 23 sec
-
42
Keep slight right to continue on Leonia, Teaneck
2128 ft · 38 sec
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43
Turn right onto Leonia
1032 ft · 35 sec
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44
Turn straight onto Degraw Avenue
138 m · 9 sec · Degraw Avenue
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45
Continue on Fort Lee Road
1.1 mi · 2 min · Fort Lee Road
-
46
Continue on Main Street
143 m · 13 sec · Main Street
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47
Take the ramp left toward George Washington Bridge
144 m · 13 sec
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48
Merge slight left onto Bergen Boulevard
1552 ft · 29 sec · Bergen Boulevard
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49
Take the exit slight left toward George Washington Bridge Upper Level
95 m · 5 sec
-
50
Merge slight left
1649 ft · 20 sec
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51
Keep slight left
1.3 km · 1 min
-
52
Continue on George Washington Bridge (upper level)
3174 ft · 1 min · George Washington Bridge (upper level)
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53
Continue on Trans-Manhattan Expressway
1.2 km · 1 min · Trans-Manhattan Expressway
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54
Continue on Cross Bronx Expressway
4.7 mi · 6 min · Cross Bronx Expressway
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55
Keep slight right to continue on Cross Bronx Expressway
2 mi · 3 min · Cross Bronx Expressway
-
56
Merge slight left onto Throgs Neck Expressway
3271 ft · 58 sec · Throgs Neck Expressway
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57
Continue on Throgs Neck Bridge
2 mi · 3 min · Throgs Neck Bridge
-
58
Continue on Clearview Expressway
3.2 mi · 3 min · Clearview Expressway
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59
Take the exit slight right toward I 495: Manhattan, Eastern Long Island
810 ft · 28 sec
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60
Keep slight left to continue on I 495 East: Long Island Expressway, Eastern Long Island
1448 ft · 39 sec
-
61
Merge slight left onto Long Island Expressway
14.2 mi · 20 min · Long Island Expressway
-
62
Take the exit slight right toward N East: Hauppauge
2144 ft · 53 sec
-
63
Merge slight left onto Northern State Parkway
13.7 mi · 19 min · Northern State Parkway
-
64
Take the exit slight right toward SM North: Kings Park
1052 ft · 26 sec
-
65
Merge slight left onto Sagtikos State Parkway
152 m · 6 sec · Sagtikos State Parkway
-
66
Continue on Sunken Meadow State Parkway
1.7 mi · 2 min · Sunken Meadow State Parkway
-
67
Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown
1170 ft · 31 sec
-
68
Turn slight right onto Jericho Turnpike
3.9 mi · 6 min · Jericho Turnpike
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69
Continue on West Main Street
3144 ft · 55 sec · West Main Street
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70
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Grand Island and Smithtown.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
New York State Thruway
Merge slight left onto New York State Thruway
99.4 mi · 01h 55m
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.
Mostly Cloudy leaving Grand Island and Sunny near Smithtown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grand Island to Smithtown?
The road trip is about 452 miles (727.5 km) and usually takes 07h 21m 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?
Kirkwood is a useful midpoint, sitting about 214.8 miles from Grand Island and 237.2 miles from Smithtown.
How much longer is the road route than the straight-line distance?
The direct path is about 332 miles (534.3 km), while the road route adds roughly 120 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 $70.95 one way or $141.89 round trip. Estimated CO2 is about 141.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Grand Island and Sunny near Smithtown.
Stop Ideas Near Kirkwood
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 Kirkwood.
Scranton, PA
Wilkes-Barre, PA
White Haven, PA
Flight Path Map
This map shows the direct air route between Grand Island and Smithtown. Straight-line distance: 332.02 mi (534.34 km).
#1 Grand Island
Town in New York
| Population | 21,767 |
| Coordinates | 43.0331100, -78.9625400 |
| Altitude | 178 |
| 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: 728 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 03m |
| 40 mph (64.37 km/h) | 11h 18m |
| 50 mph (80.47 km/h) | 09h 02m |
| 60 mph (96.56 km/h) | 07h 32m |
| 70 mph (112.65 km/h) | 06h 27m |
| 80 mph (129 km/h) | 05h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $70.95 | $141.89 |
| Mid-grade | $4.98 | $79.46 | $158.93 |
| Premium | $5.38 | $85.84 | $171.69 |
| Diesel | $6.51 | $103.82 | $207.64 |
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