The drive from Smithtown, NY to Harrietstown, NY covers 338.7 miles and takes about 7h 9m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on NY 17, Adirondack Northway, Long Island Expressway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 111.7 miles on NY 17.
At current regular gas prices, budget about $55.75 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
169.4 miles from Smithtown, NY
A natural place for your longest stop of the day
, about 3h 32m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 7h 9m. Total distance: 338.7 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 9m drive, plan rest stops for pacing.
Drive Character
This is a 7h 9m highway drive covering 338.7 miles, with most of the trip on NY 17 and Adirondack Northway. The longest continuous stretch is about 111.7 miles on NY 17.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 58 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
NY 17 is the longest continuous segment at about 111.7 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on NY 17 and Adirondack Northway. 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 38 significant decision points across 338.7 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 38 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,...
9
49.3 mi into trip|~1h 10m in
Keep slight right at fork toward NJ 4 West: Paramus
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Exit 72A
Toward NJ 4 West: Paramus
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 Harrietstown, 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
Gsp South
56.2 mi in|~1h 19m
Gsp North
56.2 mi in|~1h 19m
Newark
56.2 mi in|~1h 19m
Mahwah
56.2 mi in|~1h 19m
New York State Thruway North: Albany
71.4 mi in|~1h 39m|via NY 17
Troy
183.1 mi in|~3h 48m
Main Roads
Road
Distance
Duration
NY 17
111.7 mi
2h 8m
Adirondack Northway
97.7 mi
1h 53m
Long Island Expressway
24.8 mi
33m
State Highway 73
18.7 mi
27m
NJ 17
14.7 mi
18m
I 787
9 mi
12m
NJ 4
6.7 mi
9m
Cross Bronx Expressway
6.6 mi
8m
Longest stretch:
NY 17
— 111.7 mi, about 2h 8m
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown, NY and Harrietstown, 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 right at fork
0.2 mi·23 sec
Exit 72AToward NJ 4 West: ParamusUse the slight left / slight right lanes.
27
Merge onto NJ 4
6.7 mi·9 min·NJ 4
Use the slight right lane.
28
Take the exit
0.2 mi·26 sec
Toward GSP South, NJ 17 South, GSP North, NJ 17 North: Grand State Plaza, Newark, MahwahUse the straight lane.
29
Keep slight right at fork
0.2 mi·36 sec
Toward NJ 17 North: MahwahUse the straight / slight right lanes.
30
Merge onto NJ 17
3.3 mi·4 min·NJ 17
Use the straight / slight right lanes.
31
Continue on NJ 17
7.3 mi·9 min·NJ 17
Use the straight / right lanes.
32
Continue on NJ 17
0.7 mi·50 sec·NJ 17
33
Continue on NJ 17
3.3 mi·4 min·NJ 17
34
Continue on I 287; NY 17
0.2 mi·10 sec·I 287; NY 17
35
Keep slight left at fork onto NY 17
112 mi·2 hr 8 min·NY 17
Toward I 87 North, NY 17 North, New York State Thruway North: AlbanyUse the straight / slight right lanes.
36
Take the exit
0.3 mi·50 sec
Exit 23Toward I 787, US 9W: Albany, TroyUse the slight right lane.
37
Continue on I 787
9.0 mi·12 min·I 787
Use the straight / slight right lanes.
38
Keep slight left at fork onto NY 787
0.4 mi·29 sec·NY 787
39
Take the exit
0.3 mi·50 sec
Exit 9WToward NY 7 West: Schenectady, Saratoga SpringsUse the right lane.
40
Merge onto NY 7
3.1 mi·3 min·NY 7
41
Take the exit
0.8 mi·1 min
Toward I 87 North: Saratoga Springs, Glens Falls
42
Merge onto I 87
98 mi·1 hr 53 min·Adirondack Northway
43
Take the exit
0.3 mi·31 sec
Exit 30Toward US 9, NY 73: Keene, Keene Valley
44
Turn left onto US 9
2.2 mi·2 min·US Highway 9
45
Keep slight left at fork onto NY 73
11 mi·16 min·State Highway 73
46
Continue on NY 9N; NY 73
1.8 mi·3 min·State Highway 9N
47
Keep slight left at fork onto NY 73
7.2 mi·10 min·State Highway 73
48
Continue on NY 73
5.3 mi·7 min·Cascade Road
49
Turn slight left onto CR 35
3.6 mi·6 min·Old Military Road
50
At end of road, turn left onto NY 86
4.9 mi·7 min·Saranac-Placid Road
51
Continue on NY 86
1.2 mi·3 min·Lake Flower Avenue
52
At end of road, turn left onto NY 86
0.3 mi·42 sec·River Street
53
Turn right onto NY 3; NY 86
0.4 mi·51 sec·Church Street
54
At end of road, turn left onto NY 86
490 ft·12 sec·Bloomingdale Avenue
55
Turn right onto NY 86
0.5 mi·48 sec·Broadway Street
56
Continue on NY 86
3.0 mi·4 min·Lake Colby Drive
57
Continue on NY 86
1.7 mi·2 min·Harrietstown Road
58
Arrive at destination
NY 86
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.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 169.4 miles from Smithtown, NY, or about 3h 32m into the drive.
The longest continuous stretch on this route runs about 111.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 75 miles or 1h 43m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 169.4 miles or 3h 32m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 43m
Traffic, exits, and arrival timing usually matter more near Harrietstown, 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.
Day 1
Settle into the route from Smithtown, NY
This is one driving day of about 338.7 miles and 7h 9m.
Your first comfortable stop window is around 75 miles from Smithtown, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on NY 17 for about 111.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 169.4 mi from Smithtown, NY
· 3h 32m into the drive
The midpoint is around 169.4 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 NY 17 if your tank is already low. That segment runs about 111.7 miles.
Arriving in Harrietstown, NY
The final approach into Harrietstown, 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 Harrietstown, NY.
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...
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...
In 1777, a large British invasion force met an equally large American army here at Saratoga. After two intense battles, an eight-mile retreat, and a three-day siege, British General John Burgoyne surr...
9 mi from route
~22 min detour
Free
near mile 210.3
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...
9 mi from route
~21 min detour
Free
near mile 46.7
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...
10 mi from route
~25 min detour
Free
near mile 46.7
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...
10 mi from route
~26 min detour
Free
near mile 46.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$55.75 one way
$111.50 round trip
$4.18/gal25.4 MPG avg119 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$60.29
$120.57
premium
$4.92
$65.65
$131.29
diesel
$5.61
$74.78
$149.56
Estimated Tolls: $22.83
George Washington Bridge
$16.00
Throgs Neck Bridge
$6.55
Jericho Turnpike
(4 mi)$0.28
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
$56
Tolls
$23
Meals
$25–$50
Total
$104–$129
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 118.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $36 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
101.6
1
$35.56
$16.26
Efficient EV
84.7
0
$29.64
$13.55
EV Truck/SUV
135.5
1
$47.42
$21.68
Gas CO2
119 kg
EV CO2
40 kg (66% 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 16, 2026
Origin
Smithtown, NY
Morning
in Smithtown on Friday
Local time
11:40 AM
EDT
Current temp
64°F
Unavailable
Live forecast
Destination
Harrietstown, NY
Morning
in Harrietstown on Friday
Local time
11:40 AM
EDT
Current temp
31°F
Unavailable
Live forecast
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.
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
33 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 9m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
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 Harrietstown, NY covers 338.7 miles and takes about 7h 9m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are NY 17, Adirondack Northway, Long Island Expressway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 169.4 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 $55.75 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 38 significant decision points across 338.7 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 Harrietstown, NY, road signs point toward Kennedy Airport, Cross Island Parkway North, Bronx, New England, Upper Level and Njtp South: Hackensack - among others.
Yes. Nearby national parks include Hamilton Grange National Memorial, General Grant National Memorial and Saratoga National Historical Park. There are 6 parks within detour distance of this route.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
