The drive from Islip, NY to Hermon, NY covers 390 miles and takes about 8h 13m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on NY 17, New York State Thruway, Southern State Parkway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 117.5 miles on NY 17.
At current regular gas prices, budget about $64.20 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
195 miles from Islip, NY
A natural place for your longest stop of the day
, about 4h 1m into the drive
.
Islip (pronounced "ICE-lip") is a town on Long Island in the state of New York. Located within Suffolk County, the Town of Islip includes the villages of Brightwaters, Islandia, Ocean Beach and Saltaire. It also includes numerous hamlets including Bay Shore and Sayville which are ferry terminals for Fire Island. Other prominent communities are Bayport, Brentwood, Central Islip, Hauppauge, Islip village (the town seat), and Ronkonkoma.
Top landmarks
•Bayport Aerodrome — airport in Suffolk County, New York, United States
•Connetquot River State Park Preserve — state park in New York
•Modesty — oyster-dredging sloop built in Long Island
This is a 8h 13m highway drive covering 390 miles, with most of the trip on NY 17 and New York State Thruway. The longest continuous stretch is about 117.5 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 80 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 117.5 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on NY 17 and New York State Thruway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.6 miles in near CR 57 / Howells Road.
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 40 significant decision points across 390 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 3.6 miles (CR 57 / Howells Road): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 31.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 31.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 40 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
9
3.6 mi into trip|~6m in|CR 57 / Howells Road
Keep slight right at fork onto CR 57 / Howells Road toward Howells Road, Deer Park
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Toward Howells Road, Deer Park
8
31.1 mi into trip|~43m in
Keep slight left at fork toward NY 24 West: Hempstead Avenue
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward NY 24 West: Hempstead Avenue
8
31.2 mi into trip|~43m in
Keep slight right at fork toward Hempstead Avenue West
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward Hempstead Avenue West
8
50 mi into trip|~1h 10m 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
9
50.3 mi into trip|~1h 11m 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 Islip, NY and Hermon, NY, road signs point toward Cross Island Parkway North, Hempstead Avenue West, Grandstand, Upper Level, Njtp South: Hackensack and Gsp South - among others.
Cross Island Parkway North
29.4 mi in|~40m
Hempstead Avenue West
31.1 mi in|~43m
Grandstand
31.3 mi in|~43m
Upper Level
47.5 mi in|~1h 6m|via I 95; US 1
Njtp South: Hackensack
50 mi in|~1h 10m
Gsp South
57.1 mi in|~1h 20m
Gsp North
57.1 mi in|~1h 20m
Newark
57.1 mi in|~1h 20m
Mahwah
57.1 mi in|~1h 20m
New York State Thruway North: Albany
72.4 mi in|~1h 40m|via NY 17
Dolgeville
252.8 mi in|~5h 8m
Main Roads
Road
Distance
Duration
NY 17
117.5 mi
2h 15m
New York State Thruway
63 mi
1h 12m
Southern State Parkway
24.7 mi
31m
Bea Luck Road
19.6 mi
23m
State Highway 812
16.7 mi
20m
Indian River Road
16.1 mi
19m
East Main Street
15.8 mi
18m
NJ 17
14.7 mi
18m
Longest stretch:
NY 17
— 117.5 mi, about 2h 15m
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and Hermon, NY.
1
Start on NY 27A
0.8 mi·1 min·Main Street
2
Continue on Montauk Highway
0.2 mi·19 sec·Montauk Highway
3
Continue on NY 27A
1.1 mi·1 min·Main Street
4
Turn right onto 3rd Avenue
0.6 mi·1 min·3rd Avenue
5
Continue on CR 57
0.3 mi·36 sec·Rossevelt Street
6
Continue on CR 57
0.7 mi·1 min·Howells Road
Use the left lane.
7
Turn straight onto Sunrise Highway
163 ft·3 sec·Sunrise Highway
8
Keep slight right at fork onto CR 57
0.3 mi·36 sec·Howells Road
Toward Howells Road, Deer ParkUse the right lane.
9
Continue on CR 57
0.6 mi·1 min·Bay Shore Road
10
Take the ramp
0.1 mi·19 sec
Toward SO West: New York
11
Continue on this road
363 ft·8 sec·this road
12
Merge onto SO
25 mi·31 min·Southern State Parkway
Use the straight / right lanes.
13
Take the exit
0.3 mi·43 sec
Toward Cross Island Parkway North, Whitestone BridgeUse the slight right lane.
14
Merge onto CI
1.3 mi·1 min·Cross Island Parkway
15
Take the exit
317 ft·9 sec
Exit 26BToward NY 24: UBS Arena-Belmont ParkUse the slight right lane.
16
Keep slight left at fork
437 ft·12 sec
Toward NY 24 West: Hempstead AvenueUse the slight left / slight right lanes.
17
Keep slight right at fork
0.1 mi·15 sec
Toward Cross Island Parkway North, Hempstead Avenue West
18
Keep slight right at fork
266 ft·8 sec
Toward Hempstead Avenue WestUse the slight left / slight right lanes.
19
Continue on this road
0.1 mi·13 sec·this road
Toward Grandstand, Hempstead Avenue West
20
Keep slight left at fork
100 ft·4 sec
Toward Hempstead Avenue
21
Turn right onto NY 24
1.0 mi·2 min·Hempstead Avenue
Use the right lane.
22
Turn left onto Jamaica Avenue
0.1 mi·17 sec·Jamaica Avenue
23
Turn right onto NY 24
0.7 mi·1 min·212th Street
24
Continue on I 295
5.0 mi·5 min·Clearview Expressway
Toward I 295 North: Clearview Expressway, Through Neck BridgeUse the straight / slight right lanes.
25
Continue on I 295
2.0 mi·3 min·Throgs Neck Bridge
26
Continue on I 295
0.7 mi·1 min·Throgs Neck Expressway
Use the straight / slight right lanes.
27
Keep slight left at fork onto I 295
6.6 mi·8 min·Cross Bronx Expressway
Use the straight / slight right lanes.
28
Keep slight left at fork onto I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
Toward Upper Level
29
Continue on I 95; US 1
0.6 mi·59 sec·George Washington Bridge (upper level)
30
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
31
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.
32
Keep slight left at fork onto I 95 EXPR; NJTP
0.1 mi·8 sec·I 95 EXPR; NJTP
33
Take the exit
0.2 mi·22 sec
Toward I 95 South, NJTP South: HackensackUse the straight / slight right lanes.
34
Keep slight right at fork
0.2 mi·23 sec
Exit 72AToward NJ 4 West: ParamusUse the slight left / slight right lanes.
35
Merge onto NJ 4
6.7 mi·9 min·NJ 4
Use the slight right lane.
36
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.
37
Keep slight right at fork
0.2 mi·36 sec
Toward NJ 17 North: MahwahUse the straight / slight right lanes.
38
Merge onto NJ 17
3.3 mi·4 min·NJ 17
Use the straight / slight right lanes.
39
Continue on NJ 17
7.3 mi·9 min·NJ 17
Use the straight / right lanes.
40
Continue on NJ 17
0.7 mi·50 sec·NJ 17
41
Continue on NJ 17
3.3 mi·4 min·NJ 17
42
Continue on I 287; NY 17
0.2 mi·10 sec·I 287; NY 17
43
Keep slight left at fork onto NY 17
118 mi·2 hr 15 min·NY 17
Toward I 87 North, NY 17 North, New York State Thruway North: AlbanyUse the straight / slight right lanes.
44
Keep slight left at fork onto I 90
63 mi·1 hr 12 min·New York State Thruway
Toward I 90 West: Buffalo
45
Take the exit
0.3 mi·36 sec
Exit 29AToward NY 169: Little Falls, DolgevilleUse the slight right lane.
46
Continue on this road
0.4 mi·54 sec·this road
47
Continue on NY 169
1.9 mi·2 min·NY 169
48
At end of road, turn left onto NY 5; NY 167; NY 169
0.7 mi·1 min·NY 5; NY 167; NY 169
49
Turn right onto NY 167
0.3 mi·36 sec·South Ann Street
50
At end of road, turn left onto NY 169
9.7 mi·15 min·West Monroe Street
51
Continue on NY 28
3.2 mi·4 min·State Highway 28
52
Continue on NY 28
1.2 mi·1 min·Main Street
53
Continue on NY 28
2.5 mi·3 min·State Highway 28
54
Continue on NY 28
1.4 mi·2 min·South Main Street
55
Continue on NY 8; NY 28
0.7 mi·1 min·State Highway 8
56
Turn right onto NY 28
6.0 mi·8 min·State Highway 28
57
Turn right onto NY 12
11 mi·15 min·State Highway 12
58
Continue on NY 12; NY 28
9.7 mi·11 min·Erwin Parkway
59
Continue on NY 12
0.8 mi·51 sec·State Highway 12
60
Continue on NY 12
20 mi·23 min·Bea Luck Road
61
Turn right onto Ross Road
0.5 mi·1 min·Ross Road
62
Continue on East State Street
1.5 mi·3 min·East State Street
63
At end of road, turn right onto NY 812
8.4 mi·10 min·State Highway 812
64
Continue on NY 812
0.8 mi·1 min·Main Street
65
Continue on NY 812
16 mi·19 min·Indian River Road
66
At end of road, turn right onto NY 3; NY 812
2.9 mi·4 min·State Route 3
67
Continue on NY 3; NY 812
0.8 mi·1 min·Main Street
68
Continue on NY 3; NY 812
0.4 mi·59 sec·State Street
69
Continue on NY 3; NY 812
0.3 mi·38 sec·State Highway 812
70
Continue on NY 812
7.9 mi·9 min·State Highway 812
71
Continue on NY 812
2.1 mi·2 min·Balmat-Fowler Road
72
Turn left onto NY 58; NY 812
5.5 mi·6 min·State Highway 58
73
Continue on NY 58; NY 812
0.5 mi·40 sec·William Street
74
Turn right onto US 11; NY 812
16 mi·18 min·East Main Street
75
Turn right onto CR 17
0.9 mi·2 min·Hermon Street
76
Continue on CR 17
0.4 mi·1 min·De Kalb Junction Road
77
Continue on CR 17
2.0 mi·4 min·De Kalb Junction-Russell Road
78
Continue on CR 17
0.4 mi·1 min·Water Street
79
Turn left onto CR 17
0.1 mi·19 sec·West Main Street
80
Arrive at destination
East Main Street
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 195 miles from Islip, NY, or about 4h 1m into the drive.
The longest continuous stretch on this route runs about 117.5 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 86 miles or 1h 56m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 195 miles or 4h 1m 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 195 miles or 4h 1m
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 6h 55m
Traffic, exits, and arrival timing usually matter more near Hermon, NY than in the middle of the route.
Before You Leave
+
Open the route before leaving Islip, 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 Islip, NY
Aim for roughly 195 miles and 4.1 hours of wheel time on this day.
Day 2
Finish the approach into Hermon, NY
Aim for roughly 195 miles and 4.1 hours of wheel time on this day.
Your first comfortable stop window is around 86 miles from Islip, 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 NY 17 for about 117.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 195 mi from Islip, NY
· 4h 1m into the drive
The midpoint is around 195 miles from Islip, 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 117.5 miles.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 195 miles or 4.1 hours on the road.
Arriving in Hermon, NY
The final approach into Hermon, 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 Hermon, NY.
On a multi-day trip, keep the last day a little lighter so you reach Hermon, 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.
General Grant National Memorial
National Memorial
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...
6 mi from route
~16 min detour
Free
near mile 53.8
Caution: Lower Crypt Access Subject to Safe Conditions
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...
6 mi from route
~16 min detour
Free
near mile 53.8
Immerse yourself in an enchanting collage of coastal life and history. Rhythmic waves, high dunes, ancient maritime forests, historic landmarks and glimpses of wildlife, Fire Island has been a special...
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...
11 mi from route
~28 min detour
Free
near mile 53.8
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...
12 mi from route
~31 min detour
Free
near mile 53.8
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...
13 mi from route
~33 min detour
Free
near mile 53.8
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$64.20 one way
$128.39 round trip
$4.18/gal25.4 MPG avg137 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$69.42
$138.83
premium
$4.92
$75.59
$151.18
diesel
$5.61
$86.11
$172.21
Estimated Tolls: $25.70
George Washington Bridge
$16.00
Throgs Neck Bridge
$6.55
New York State Thruway
(63 mi)$3.15
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
$64
Tolls
$26
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$220–$330
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 136.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $41 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
117
1
$40.95
$18.72
Efficient EV
97.5
1
$34.13
$15.60
EV Truck/SUV
156
1
$54.60
$24.96
Gas CO2
136 kg
EV CO2
46 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
Islip, NY
Morning
in Islip on Saturday
Local time
6:18 AM
EDT
Current temp
78°F
Mostly Sunny
SW 7 to 10 mph3% chanceLive forecast
Flood Warning
Flood Warning issued April 15 at 11:57PM EDT by NWS Binghamton NY
Destination
Hermon, NY
Morning
in Hermon on Saturday
Local time
6:18 AM
EDT
Current temp
37°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.
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
41 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
8h 13m 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 Islip, NY to Hermon, NY covers 390 miles and takes about 8h 13m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are NY 17, New York State Thruway, Southern State Parkway. 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 195 miles on day one.
The midpoint is about 195 miles from Islip, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $64.20 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 40 significant decision points across 390 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 3.6 miles (CR 57 / Howells Road): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 31.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 31.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Between Islip, NY and Hermon, NY, road signs point toward Cross Island Parkway North, Hempstead Avenue West, Grandstand, Upper Level, Njtp South: Hackensack and Gsp South - among others.
Yes. Nearby national parks include General Grant National Memorial, Hamilton Grange National Memorial and Fire Island National Seashore. 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.
