How far is Buffalo, NY from Smithtown, NY?
The driving distance from Buffalo, NY to Smithtown, NY is about 428.9 miles (690.3 km), with a travel time of about 07h 15m by car.
- The straight-line flight distance is about 324 miles (521.4 km).
- For a round trip, plan for roughly 14h 31m 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 15m.
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.
City in Steuben County, New York, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Buffalo and Smithtown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Buffalo and Smithtown.
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1
Start on Niagara Square
31 m · 3 sec · Niagara Square
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2
Exit the rotary onto Perkins Drive
98 m · 16 sec · Perkins Drive
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3
At the end of the road, turn left onto South Elmwood Avenue
607 ft · 19 sec · South Elmwood Avenue
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4
Keep slight right
63 m · 8 sec
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5
At the end of the road, turn right onto Church Street
153 m · 16 sec · Church Street
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6
Take the exit straight toward I 190, NY 5 West: Skyway, Peace Bridge, Canada
53 m · 4 sec
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7
Keep slight left to continue on I 190 South, NY 5 West: Skyway
1189 ft · 37 sec
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8
Merge slight left onto Niagara Thruway
4.9 mi · 7 min · Niagara Thruway
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9
Keep slight right to continue on I 90 West: Erie
1853 ft · 28 sec
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10
Merge slight left onto New York State Thruway
1.3 mi · 2 min · New York State Thruway
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11
Take the exit slight right toward NY 400, NY 16: West Seneca, East Aurora
2915 ft · 57 sec
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12
Continue on Aurora Expressway
12.4 mi · 15 min · Aurora Expressway
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13
Take the exit slight right toward US 20A, NY 78: East Aurora
1311 ft · 28 sec
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14
Turn left onto Main Street
561 ft · 12 sec · Main Street
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15
Continue on Big Tree Road
10.5 mi · 16 min · Big Tree Road
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16
Continue on Varysburg Road
10.9 mi · 16 min · Varysburg Road
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17
Continue on West Buffalo Road
1.7 mi · 2 min · West Buffalo Road
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18
Continue on West Buffalo Street
4.6 mi · 9 min · West Buffalo Street
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19
Continue on Perry Center Road
7.4 mi · 11 min · Perry Center Road
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20
Continue on Perry Road
2.3 mi · 3 min · Perry Road
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21
Turn right onto Mount Morris Road
1.3 mi · 2 min · Mount Morris Road
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22
Continue on North Main Street
1.8 mi · 5 min · North Main Street
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23
Continue on Sonyea Road
4.1 mi · 7 min · Sonyea Road
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24
Take the ramp slight right
1375 ft · 34 sec
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25
Merge slight left onto Genesee Expressway
32.6 mi · 38 min · Genesee Expressway
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26
Merge slight right onto Southern Tier Expressway
104.5 mi · 2 hr 2 min · Southern Tier Expressway
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27
Keep slight right to continue on I 81 South: Scranton
53.4 mi · 1 hr 3 min
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28
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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29
Continue on I 84 East, I 380 South: Mount Pocono, Milford
3.7 mi · 5 min
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30
Keep slight right to continue on I 380 South: Mount Pocono
23.6 mi · 26 min
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31
Keep slight left to continue on I 80 East: Stroudsburg
1 mi · 1 min
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32
Merge slight right onto Keystone Shortway
80 mi · 1 hr 37 min · Keystone Shortway
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33
Keep slight right to continue on Christopher Columbus Highway
5.5 mi · 6 min · Christopher Columbus Highway
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34
Keep slight left to continue on I 95 North: George Washington Bridge, New York City
1503 ft · 23 sec
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35
Keep slight right to continue on Leonia, Teaneck
2128 ft · 38 sec
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36
Turn right onto Leonia
1032 ft · 35 sec
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37
Turn straight onto Degraw Avenue
138 m · 9 sec · Degraw Avenue
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38
Continue on Fort Lee Road
1.1 mi · 2 min · Fort Lee Road
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39
Continue on Main Street
143 m · 13 sec · Main Street
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40
Take the ramp left toward George Washington Bridge
144 m · 13 sec
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41
Merge slight left onto Bergen Boulevard
1552 ft · 29 sec · Bergen Boulevard
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42
Take the exit slight left toward George Washington Bridge Upper Level
95 m · 5 sec
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43
Merge slight left
1649 ft · 20 sec
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44
Keep slight left
1.3 km · 1 min
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45
Continue on George Washington Bridge (upper level)
3174 ft · 1 min · George Washington Bridge (upper level)
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46
Continue on Trans-Manhattan Expressway
1.2 km · 1 min · Trans-Manhattan Expressway
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47
Continue on Cross Bronx Expressway
4.7 mi · 6 min · Cross Bronx Expressway
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48
Keep slight right to continue on Cross Bronx Expressway
2 mi · 3 min · Cross Bronx Expressway
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49
Merge slight left onto Throgs Neck Expressway
3271 ft · 58 sec · Throgs Neck Expressway
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50
Continue on Throgs Neck Bridge
2 mi · 3 min · Throgs Neck Bridge
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51
Continue on Clearview Expressway
3.2 mi · 3 min · Clearview Expressway
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52
Take the exit slight right toward I 495: Manhattan, Eastern Long Island
810 ft · 28 sec
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53
Keep slight left to continue on I 495 East: Long Island Expressway, Eastern Long Island
1448 ft · 39 sec
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54
Merge slight left onto Long Island Expressway
14.2 mi · 20 min · Long Island Expressway
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55
Take the exit slight right toward N East: Hauppauge
2144 ft · 53 sec
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56
Merge slight left onto Northern State Parkway
13.7 mi · 19 min · Northern State Parkway
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57
Take the exit slight right toward SM North: Kings Park
1052 ft · 26 sec
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58
Merge slight left onto Sagtikos State Parkway
152 m · 6 sec · Sagtikos State Parkway
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59
Continue on Sunken Meadow State Parkway
1.7 mi · 2 min · Sunken Meadow State Parkway
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60
Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown
1170 ft · 31 sec
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61
Turn slight right onto Jericho Turnpike
3.9 mi · 6 min · Jericho Turnpike
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62
Continue on West Main Street
3144 ft · 55 sec · West Main Street
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63
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Buffalo and Smithtown.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Southern Tier Expressway
Merge slight right onto Southern Tier Expressway
105 mi · 02h 02m
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.
Chance Rain Showers then Partly Sunny leaving Buffalo and Chance Rain Showers near Smithtown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Buffalo to Smithtown?
The road trip is about 428.9 miles (690.3 km) and usually takes 07h 15m 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?
Riverside is a useful midpoint, sitting about 211.4 miles from Buffalo and 217.6 miles from Smithtown.
How much longer is the road route than the straight-line distance?
The direct path is about 324 miles (521.4 km), while the road route adds roughly 104.9 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 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 $60.70 one way or $121.39 round trip. Estimated CO2 is about 134.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Partly Sunny around Buffalo and Chance Rain Showers near Smithtown.
Stop Ideas Near Riverside
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 Riverside.
Scranton, PA
Wilkes-Barre, PA
White Haven, PA
Flight Path Map
This map shows the direct air route between Buffalo and Smithtown. Straight-line distance: 323.96 mi (521.37 km).
#1 Buffalo
The second most populous city in New York.
| Population | 254,479 |
| Coordinates | 42.8864500, -78.8783700 |
| Altitude | 183 |
| 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: 690 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 17m |
| 40 mph (64.37 km/h) | 10h 43m |
| 50 mph (80.47 km/h) | 08h 34m |
| 60 mph (96.56 km/h) | 07h 08m |
| 70 mph (112.65 km/h) | 06h 07m |
| 80 mph (129 km/h) | 05h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $60.70 | $121.39 |
| Mid-grade | $4.48 | $67.84 | $135.68 |
| Premium | $4.86 | $73.60 | $147.19 |
| Diesel | $4.69 | $71.07 | $142.13 |
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 · Apr 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.