The drive from Smithtown, NY to Buffalo, NY covers 422.7 miles and takes about 8h 52m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on I 86, Christopher Columbus Highway, I 81 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 100 miles on I 86.
At current regular gas prices, budget about $69.58 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
211.4 miles from Smithtown, NY
A natural place for your longest stop of the day
, about 4h 24m into the drive
.
Drive Character
This is a 8h 52m highway drive covering 422.7 miles, with most of the trip on I 86 and Christopher Columbus Highway. The longest continuous stretch is about 100 miles on I 86.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 57 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 86 is the longest continuous segment at about 100 miles.
Elevation Profile
Hilly terrain with moderate elevation changes
1,831 ft54 ft
Total Climb
3,788 ft
Total Descent
3,243 ft
Highest Point
1,831 ft
~151 mi in
Elevation Range
1,777 ft
Notable High Points
1,831 ft at ~151 miles+610 ft prominence
1,521 ft at ~392.5 miles+912 ft prominence
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 86 and Christopher Columbus Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 7.6 miles in.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 36 significant decision points across 422.7 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 36 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
7.6 mi into trip|~10m in
Keep slight left at fork toward I 495 West: New York
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 495 West: New York
8
33.3 mi into trip|~46m in
Take the exit toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 31N-S
Toward Cross Island Parkway, Whitestone Bridge,...
10
33.5 mi into trip|~46m in
Keep slight right at fork toward Cross Island Parkway North, Whitestone Bridge
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Exit 31N
Toward Cross Island Parkway North, Whitestone B...
8
36.9 mi into trip|~51m in
Take the exit toward I 295 North: Throgs Neck Bridge, Bronx, New England
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 33
Toward I 295 North: Throgs Neck Bridge, Bronx,...
8
49.1 mi into trip|~1h 9m in
Take the exit toward I 95 South, NJTP South: Hackensack
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 95 South, NJTP South: Hackensack
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Smithtown, NY and Buffalo, NY, road signs point toward Kennedy Airport, Cross Island Parkway North, Bronx, New England, Upper Level and Njtp South: Hackensack - among others.
Kennedy Airport
33.3 mi in|~46m
Cross Island Parkway North
33.5 mi in|~46m
Bronx
36.9 mi in|~51m
New England
36.9 mi in|~51m
Upper Level
46.6 mi in|~1h 5m|via I 95; US 1
Njtp South: Hackensack
49.1 mi in|~1h 9m
Hackensack
51.7 mi in|~1h 13m
Letchworth Park
357.3 mi in|~7h 14m
Main Roads
Road
Distance
Duration
I 86
100 mi
1h 56m
Christopher Columbus Highway
68.2 mi
1h 20m
I 81
58.1 mi
1h 9m
Genesee Expressway
32.9 mi
37m
I 380
27.7 mi
30m
Long Island Expressway
24.8 mi
33m
Keystone Shortway
17.3 mi
24m
Aurora Expressway
12.5 mi
14m
Longest stretch:
I 86
— 100 mi, about 1h 56m
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown, NY and Buffalo, NY.
1
Start on NY 25; NY 25A
0.6 mi·51 sec·West Main Street
2
Keep slight left at fork onto NY 25; NY 25A
179 ft·5 sec·West Main Street
3
Continue on NY 25
4.0 mi·6 min·Jericho Turnpike
4
Take the ramp
0.2 mi·27 sec
Toward SM South: Bay Shore
5
Merge onto SM
1.9 mi·2 min·Sunken Meadow State Parkway
6
Continue on SA
0.8 mi·49 sec·Sagtikos State Parkway
7
Take the exit
0.1 mi·16 sec
Exit S1WToward I 495 West: New YorkUse the slight right lane.
8
Keep slight left at fork
0.2 mi·23 sec
Toward I 495 West: New YorkUse the straight / slight right lanes.
9
Turn straight onto LIE North Service Road
0.4 mi·33 sec·LIE North Service Road
10
Turn straight onto North Service Road
0.1 mi·14 sec·North Service Road
11
Take the ramp
0.2 mi·21 sec
Toward I 495 West: New York
12
Merge onto I 495
25 mi·33 min·Long Island Expressway
Use the straight / slight right lanes.
13
Take the exit
0.2 mi·27 sec
Exit 31N-SToward Cross Island Parkway, Whitestone Bridge, Kennedy AirportUse the straight / slight right lanes.
14
Keep slight right at fork
0.3 mi·38 sec
Exit 31NToward Cross Island Parkway North, Whitestone BridgeUse the slight left / slight right lanes.
15
Merge onto CI
3.1 mi·4 min·Cross Island Parkway
Use the straight / slight right lanes.
16
Take the exit
0.6 mi·1 min
Exit 33Toward I 295 North: Throgs Neck Bridge, Bronx, New EnglandUse the straight / slight right lanes.
17
Merge onto I 295
1.8 mi·3 min·Throgs Neck Bridge
18
Continue on I 295
0.7 mi·1 min·Throgs Neck Expressway
Use the straight / slight right lanes.
19
Keep slight left at fork onto I 295
6.6 mi·8 min·Cross Bronx Expressway
Use the straight / slight right lanes.
20
Keep slight left at fork onto I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
Toward Upper Level
21
Continue on I 95; US 1
0.6 mi·59 sec·George Washington Bridge (upper level)
22
Continue on I 95 EXPR; US 1 EXPR; US 9 EXPR
0.5 mi·48 sec·I 95 EXPR; US 1 EXPR; US 9 EXPR
23
Keep slight left at fork onto I 95 EXPR; US 1 EXPR; US 9 EXPR
0.6 mi·39 sec·I 95 EXPR; US 1 EXPR; US 9 EXPR
Use the straight / slight right lanes.
24
Keep slight left at fork onto I 95 EXPR; NJTP
0.1 mi·8 sec·I 95 EXPR; NJTP
25
Take the exit
0.2 mi·22 sec
Toward I 95 South, NJTP South: HackensackUse the straight / slight right lanes.
26
Keep slight left at fork
0.4 mi·29 sec
Toward I 95 South, NJTP South: HackensackUse the slight left / slight right lanes.
27
Merge onto I 95; NJTP
2.0 mi·2 min·New Jersey Turnpike
Use the straight / slight right lanes.
28
Take the exit
0.8 mi·1 min
Exit 69Toward I 80 West: Paterson, HackensackUse the straight / slight right lanes.
29
Continue on I 80
68 mi·1 hr 20 min·Christopher Columbus Highway
Use the straight / slight right lanes.
30
Keep slight left at fork onto I 80
5.5 mi·8 min·Keystone Shortway
Use the straight / slight right lanes.
31
Keep slight left at fork onto I 80
12 mi·15 min·Keystone Shortway
32
Take the exit
0.7 mi·46 sec
Exit 293Toward I 380 North: Scranton
33
Continue on I 380
28 mi·30 min·I 380
Use the straight lane.
34
Merge onto I 81
58 mi·1 hr 9 min·I 81
Use the straight lane.
35
Keep slight left at fork onto I 86; NY 17
100 mi·1 hr 56 min·I 86; NY 17
Toward I 86: Corning
36
Keep slight left at fork onto I 390
33 mi·37 min·Genesee Expressway
Toward I 390: Rochester
37
Take the exit
0.2 mi·23 sec
Exit 6Toward NY 36: Mount Morris, Letchworth Park
38
Turn left onto NY 36
4.3 mi·7 min·Sonyea Road
39
Continue on NY 36
1.8 mi·4 min·Main Street
40
Continue on NY 36
1.3 mi·1 min·Mount Morris Road
41
Turn left onto CR 64
2.3 mi·3 min·Perry Road
42
Continue on US 20A
7.4 mi·10 min·Leicester Road
43
Continue on US 20A
4.6 mi·8 min·East Buffalo Street
44
Continue on US 20A
1.7 mi·2 min·West Buffalo Road
45
Continue on US 20A
11 mi·15 min·Varysburg Road
46
Continue on US 20A
11 mi·15 min·Big Tree Road
47
Take the ramp
0.2 mi·30 sec
48
Merge onto NY 400
13 mi·14 min·Aurora Expressway
49
Keep slight right at fork
0.2 mi·27 sec
Toward I 90 East: Buffalo
50
Merge onto I 90
1.3 mi·1 min·New York State Thruway
51
Take the exit
0.6 mi·1 min
Exit 53Toward I 190 North: Downtown Buffalo, Niagara FallsUse the straight / slight right lanes.
52
Continue on I 190
4.9 mi·6 min·Niagara Thruway
53
Take the exit
0.2 mi·33 sec
Exit 7Toward Buffalo, Outer Harbor, Church StreetUse the slight right lane.
54
Continue on NY 5
521 ft·21 sec·Church Street
55
Turn left onto NY 384
0.2 mi·29 sec·Delaware Avenue
Use the left lane.
56
Enter roundabout onto NY 384
0.2 mi·30 sec·Niagara Square
57
Arrive at destination
NY 384
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 211.4 miles from Smithtown, NY, or about 4h 24m into the drive.
The longest continuous stretch on this route runs about 100 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 93 miles or 2h 2m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 211.4 miles or 4h 24m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 211.4 miles or 4h 24m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 24m
Traffic, exits, and arrival timing usually matter more near Buffalo, NY than in the middle of the route.
Before You Leave
+
Open the route before leaving Smithtown, NY so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Smithtown, NY
Aim for roughly 211 miles and 4.4 hours of wheel time on this day.
Day 2
Finish the approach into Buffalo, NY
Aim for roughly 211 miles and 4.4 hours of wheel time on this day.
Your first comfortable stop window is around 93 miles from Smithtown, NY.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 86 for about 100 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 211.4 mi from Smithtown, NY
· 4h 24m into the drive
The midpoint is around 211.4 miles from Smithtown, NY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before I 86 if your tank is already low. That segment runs about 100 miles.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 211 miles or 4.4 hours on the road.
Arriving in Buffalo, NY
The final approach into Buffalo, NY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Buffalo, NY.
On a multi-day trip, keep the last day a little lighter so you reach Buffalo, NY with some flexibility left in the schedule.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
National Parks Near This Route
Worth a detour if your schedule allows.
Hamilton Grange National Memorial
National Memorial
Merchant’s clerk, Revolutionary War soldier, first Secretary Treasury of the United States: Alexander Hamilton’s life is memorialized at The Grange, the home he built on a country estate in uptown Man...
4 mi from route
~10 min detour
Free
near mile 43.7
The final resting place of President Ulysses S. Grant and his wife, Julia, is the largest mausoleum in North America. It testifies to a people’s gratitude for the man who ended the bloodiest conflict...
5 mi from route
~12 min detour
Free
near mile 43.7
Before the 1960s, almost everything about living authentically as a lesbian, a bisexual person or a gay man was illegal. The Stonewall Uprising on June 28, 1969 is a milestone in the quest for civil r...
10 mi from route
~24 min detour
Free
near mile 43.7
The African Burial Ground stands as the oldest and largest known excavated burial site in North America for both free and enslaved Africans. It offers a profound testament to the enduring legacy of Af...
11 mi from route
~27 min detour
Free
near mile 43.7
Here at Federal Hall, George Washington took the oath of office as the first President of the United States, marking the beginning of the American constitutional republic. This historic site served as...
11 mi from route
~28 min detour
Free
near mile 43.7
Located at the southern tip of Manhattan, Castle Clinton marks the place where New York City began and reflects the growth of both the city and the nation. Built to defend the harbor during the War of...
12 mi from route
~29 min detour
Free
near mile 43.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$69.58 one way
$139.16 round trip
$4.18/gal25.4 MPG avg148 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$75.24
$150.47
premium
$4.92
$81.93
$163.85
diesel
$5.61
$93.33
$186.65
Estimated Tolls: $23.42
George Washington Bridge
$16.00
Throgs Neck Bridge
$6.55
Jericho Turnpike
(4 mi)$0.28
New Jersey Turnpike
(2 mi)$0.28
Niagara Thruway
(4.9 mi)$0.24
New York State Thruway
(1.3 mi)$0.07
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$70
Tolls
$23
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$223–$333
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 147.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $44 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
126.8
1
$44.38
$20.29
Efficient EV
105.7
1
$36.99
$16.91
EV Truck/SUV
169.1
2
$59.18
$27.05
Gas CO2
148 kg
EV CO2
49 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 13, 2026
Origin
Smithtown, NY
Late night
in Smithtown on Friday
Local time
4:54 AM
EDT
Current temp
64°F
Unavailable
Live forecast
Destination
Buffalo, NY
Late night
in Buffalo on Friday
Local time
4:54 AM
EDT
Current temp
66°F
Rain Showers then Mostly Cloudy
SW 17 to 28 mph82% chanceLive forecast
Wind Advisory
Wind Advisory issued April 13 at 12:55AM EDT until April 13 at 2:00PM EDT by NWS Burlington VT
Flood Warning
Flood Warning issued April 13 at 12:22AM EDT by NWS Binghamton NY
57°F
Ramapo, NY
211 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
8h 52m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Smithtown, NY to Buffalo, NY covers 422.7 miles and takes about 8h 52m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 86, Christopher Columbus Highway, I 81. Most of the drive stays on highways, so watch for ramps and exits.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 211 miles on day one.
The midpoint is about 211.4 miles from Smithtown, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $69.58 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 36 significant decision points across 422.7 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Smithtown, NY and Buffalo, NY, road signs point toward Kennedy Airport, Cross Island Parkway North, Bronx, New England, Upper Level and Njtp South: Hackensack - among others.
Hilly terrain with moderate elevation changes. The route ranges from 54 ft to 1,831 ft elevation with about 3,788 ft of total climbing. There are 2 notable high points along the way.
Yes. Nearby national parks include Hamilton Grange National Memorial, General Grant National Memorial and Stonewall National Monument. There are 6 parks within detour distance of this route.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
Elevation is sampled from
USGS 3DEP.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
