Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 2, 2026 · Editorial standards
Drive Time
8h 46m
Distance
427.1 mi
687 km
Drive Score
8/10
Great drive
Same Day?
2-day trip
Fuel Cost
$72
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Islip, NY
Wikimedia Commons
Napoli, NY
Renan Tagliaferro
Islip, NY to Napoli, NY is 427.1 miles and takes about 8h 46m via Keystone Shortway and US 219, with a fuel budget near $71 and an overnight recommendation. This trip stays within the Northeast region, beginning and ending in New York. With a recommended two days for travel, you'll have ample time to experience the predominantly surface road profile. It's a solid option if you're looking for a straightforward drive across the state.
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
213.5 miles from Islip, NY
A natural place for your longest stop of the day , about 4h 20m into the drive .
| Road | Distance | Duration |
|---|---|---|
| Keystone Shortway | 200 mi | 3h 44m |
| Christopher Columbus Highway | 68.2 mi | 1h 20m |
| US 219 | 46.5 mi | 53m |
| Southern State Parkway | 24.7 mi | 31m |
| Bennetts Valley Highway | 10.5 mi | 16m |
| Southern Tier Expressway | 8.6 mi | 9m |
| Million Dollar Highway | 8.3 mi | 12m |
| State Park Road | 7.5 mi | 13m |
Hour-of-day weekday pattern from 388 FHWA count stations on your route.
Peak
3 PM
~3,054 veh/hr typical · worst 3,724
Quietest
1 AM
~358 veh/hr
Peak-to-quiet ratio
8.5×
busier at peak than in the quiet hours
Averaged across 104 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between Islip, NY and Napoli, NY.
Start on NY 27A
Continue on Montauk Highway
Continue on NY 27A
Turn right onto 3rd Avenue
Continue on CR 57
Continue on CR 57
Turn straight onto Sunrise Highway
Keep slight right at fork onto CR 57
Continue on CR 57
Take the ramp
Continue on this road
Merge onto SO
Take the exit
Merge onto CI
Take the exit
Keep slight left at fork
Keep slight right at fork
Keep slight right at fork
Continue on this road
Keep slight left at fork
Turn right onto NY 24
Turn left onto Jamaica Avenue
Turn right onto NY 24
Continue on I 295
Continue on I 295
Continue on I 295
Keep slight left at fork onto I 295
Keep slight left at fork onto I 95; US 1
Continue on I 95; US 1
Continue on I 95 EXPR; US 1 EXPR; US 9 EXPR
Keep slight left at fork onto I 95 EXPR; US 1 EXPR; US 9 EXPR
Keep slight left at fork onto I 95 EXPR; NJTP
Take the exit
Keep slight left at fork
Merge onto I 95; NJTP
Take the exit
Continue on I 80
Keep slight left at fork onto I 80
Keep slight left at fork onto I 80
Take the exit
Keep slight right at fork
Turn straight onto PA 153
Turn right onto PA 255
Continue on PA 255
Continue on PA 255
Turn straight onto PA 255
Continue on PA 120; PA 255
Turn right onto PA 120; PA 255
Turn left onto PA 120; PA 255
Continue on PA 255
Turn left onto PA 255
Continue on PA 255
Continue on PA 255
Continue on PA 255
Keep slight right at fork
Merge onto US 219
Keep slight right at fork onto US 219
Take the exit onto US 219
Merge onto I 86; US 219; NY 17
Take the exit
Turn right onto NY 417
Continue on NY 417
Turn left onto NY 353
Continue on NY 353
Continue on NY 353; NY 242
Continue on NY 353; NY 242
Turn left onto NY 242
Continue on NY 242
Arrive at destination
Given the 8 hour 46 minute duration and 427.1 mile distance, planning for two days is wise. You'll want to depart early to make the most of your first day, aiming to cover roughly half the distance. With two recommended stops, plan them strategically to break up the drive and refuel. The fuel cost is estimated at $71, so keep an eye on your gauge, especially before heading into longer stretches like the 200 miles on the Keystone Shortway. Consider where you'll end your first day to ensure easy access to amenities.
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.
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 94 miles or 2h 3m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 213.5 miles or 4h 20m 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 213.5 miles or 4h 20m
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 28m
Traffic, exits, and arrival timing usually matter more near Napoli, NY than in the middle of the route.
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 214 miles and 4.4 hours of wheel time on this day.
Day 2
Finish the approach into Napoli, NY
Aim for roughly 214 miles and 4.4 hours of wheel time on this day.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Overnight candidate
214 mi into the route
Best for: Hotel check-in, dinner, and a fresh start
This lines up well with a realistic day-end stop if you are breaking the drive into stages.
Find hotels in Barton, NYNight 1
214 mi · about 4.4h in
A practical overnight split lands near Barton, NY after about 214 miles or 4.4 hours of driving.
Find hotelsA short stop after about 94 miles helps settle the day before fatigue starts building.
The midpoint is around 213.5 miles from Islip, NY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Keystone Shortway if your tank is already low. That segment runs about 200 miles.
Overnight split
Hotel stopFor a steadier pace, wrap day one after about 214 miles or 4.4 hours on the road.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 3.6 and 50.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
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
Keep slight left at fork toward NY 24 West: Hempstead Avenue
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight right at fork toward Hempstead Avenue West
Highway fork - watch signs carefully. Lane positioning matters here
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
Keep slight left at fork toward I 95 South, NJTP South: Hackensack
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Regular Gas
$71.63 one way
$143.26 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.63 | $77.79 | $155.57 |
| premium | $5.05 | $84.97 | $169.93 |
| diesel | $5.60 | $94.15 | $188.29 |
Estimated Tolls: $22.83
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
$72
Tolls
$23
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$224–$334
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 149.4 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $45 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 128.1 | 1 | $44.85 | $20.50 |
| Efficient EV | 106.8 | 1 | $37.37 | $17.08 |
| EV Truck/SUV | 170.8 | 2 | $59.79 | $27.33 |
Gas CO2
149 kg
EV CO2
50 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.
Current conditions at both ends of the drive.
Origin
Late night in Islip on Wednesday
Local time
2:36 AM
EDT
Current temp
63°F
Mostly Clear
Destination
Late night in Napoli on Wednesday
Local time
2:36 AM
EDT
Current temp
58°F
Mostly Cloudy
75°F
Barton, NY
214 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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
Worth a detour if your schedule allows.
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...
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...
National Monument
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...
National Monument
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...
National Seashore
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...
National Monument
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...
Park data from the National Park Service API. Alerts update every 2 hours.
About 25% of this drive is on highways, with the longest contiguous stretch on the Keystone Shortway measuring 200 miles. You'll transition from the Christopher Columbus Highway and US 219 onto mostly surface roads for the remainder of your trip. Expect to notice a change from more developed highway corridors to more rural cruising as you progress. The profile indicates a significant portion of the route will be on non-interstate roads.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. 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.
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 427.1 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.
Hilly terrain with moderate elevation changes
Total Climb
4,824 ft
Total Descent
3,108 ft
Highest Point
1,845 ft
~152.5 mi in
Elevation Range
1,832 ft
Notable High Points
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Islip, NY and Napoli, NY, road signs point toward Cross Island Parkway North, Hempstead Avenue West, Grandstand, Upper Level, Njtp South: Hackensack and Hackensack - among others.
Cross Island Parkway North
Hempstead Avenue West
Grandstand
Upper Level
Njtp South: Hackensack
Hackensack
Penfield
Founded 1683
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
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Solo Traveler
8h 46m drive, plan rest stops for pacing.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore more options from Islip, NY or browse trips ending in Napoli, NY.
Looking for more statewide routes? Browse NY road trips.
