How far is Smithtown, NY from Ithaca, NY?
The driving distance from Smithtown, NY to Ithaca, NY is about 271.8 miles (437.5 km), with a travel time of about 05h 41m by car.
- The straight-line flight distance is about 202.3 miles (325.6 km).
- For a round trip, plan for roughly 11h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 41m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Human settlement in Sullivan County, New York, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Partly Sunny
Driving Route Map
The map below follows the saved road route between Smithtown and Ithaca.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown and Ithaca.
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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)
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22
Continue straight
2659 ft · 48 sec
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23
Keep slight left
3214 ft · 39 sec
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24
Keep slight left
559 ft · 9 sec
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25
Take the exit slight right toward I 95 South, NJTP South: Hackensack
1270 ft · 23 sec
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26
Keep slight left to continue on I 95 South, NJTP South: Hackensack
1884 ft · 29 sec
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27
Merge slight left onto New Jersey Turnpike
2 mi · 3 min · New Jersey Turnpike
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28
Take the exit slight right toward I 80 West: Paterson, Hackensack
1.3 km · 1 min
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29
Continue on Christopher Columbus Highway
68.2 mi · 1 hr 21 min · Christopher Columbus Highway
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30
Keep slight left to continue on Keystone Shortway
5.5 mi · 8 min · Keystone Shortway
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31
Keep slight left to continue on Keystone Shortway
11.9 mi · 16 min · Keystone Shortway
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32
Take the exit slight right toward I 380 North: Scranton
1.1 km · 46 sec
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33
Continue straight
27.7 mi · 31 min
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34
Merge slight right
58.1 mi · 1 hr 9 min
-
35
Keep slight right to continue on I 81 North: Syracuse, Albany
1.8 mi · 2 min
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36
Keep slight left to continue on I 81 North: Syracuse
13.9 mi · 17 min
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37
Take the exit slight right toward NY 26 North: Whitney Point, Lisle
1480 ft · 33 sec
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38
Turn right
2902 ft · 43 sec
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39
At the end of the road, turn left
580 ft · 10 sec
-
40
Continue straight
30.5 mi · 40 min
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41
Keep slight right to continue on Seneca Way
991 ft · 30 sec · Seneca Way
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42
Arrive at your destination
0 m · 1 sec · East Seneca Street
Car Route Details
A richer read on the saved driving route between Smithtown and Ithaca.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Christopher Columbus Highway
Continue on Christopher Columbus Highway
68.2 mi · 01h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Cloudy leaving Smithtown and Partly Sunny near Ithaca.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithtown to Ithaca?
The road trip is about 271.8 miles (437.5 km) and usually takes 05h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Tusten is a useful midpoint, sitting about 135.4 miles from Smithtown and 136.5 miles from Ithaca.
How much longer is the road route than the straight-line distance?
The direct path is about 202.3 miles (325.6 km), while the road route adds roughly 69.5 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 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 5:38 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.66 one way or $85.31 round trip. Estimated CO2 is about 85.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Smithtown and Partly Sunny near Ithaca.
Stop Ideas Near Tusten
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 Tusten.
Scranton, PA
White Haven, PA
Wilkes-Barre, PA
Poughkeepsie station
Flight Path Map
This map shows the direct air route between Smithtown and Ithaca. Straight-line distance: 202.32 mi (325.61 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 Ithaca
City in New York, USA
| Population | 30,981 |
| Coordinates | 42.4406300, -76.4966100 |
| Altitude | 125 |
| Country | United States |
End: Ithaca (-76.49661, 42.44063)
Estimated Travel Time
Distance: 437 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 03m |
| 40 mph (64.37 km/h) | 06h 47m |
| 50 mph (80.47 km/h) | 05h 26m |
| 60 mph (96.56 km/h) | 04h 31m |
| 70 mph (112.65 km/h) | 03h 53m |
| 80 mph (129 km/h) | 03h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $42.66 | $85.31 |
| Mid-grade | $4.98 | $47.78 | $95.55 |
| Premium | $5.38 | $51.61 | $103.23 |
| Diesel | $6.51 | $62.42 | $124.84 |
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