Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards
Drive Time
7h 20m
Distance
336.9 mi
542 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$55
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
Ontario County, NY
Abhishek Navlakha
The drive from Islip, NY to Ontario County, NY covers 336.9 miles and takes about 7h 20m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 81, Christopher Columbus Highway, US 11 for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 73.8 miles on I 81. At current regular gas prices, budget about $55.46 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
168.5 miles from Islip, NY
A natural place for your longest stop of the day , about 3h 33m into the drive .
Weekend Trip
Doable as a same-day drive at 7h 20m. Total distance: 336.9 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 20m drive, plan rest stops for pacing.
Expect a 7h 20m drive with frequent turns across 336.9 miles of local and secondary 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 43 significant decision points across 336.9 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.
These are the spots where you need to pay the most attention. Preview them before you drive.
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
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Islip, NY and Ontario County, 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
Albany
Lisle
| Road | Distance | Duration |
|---|---|---|
| I 81 | 73.8 mi | 1h 28m |
| Christopher Columbus Highway | 68.2 mi | 1h 20m |
| US 11 | 30.6 mi | 40m |
| I 380 | 27.7 mi | 30m |
| Southern State Parkway | 24.7 mi | 31m |
| Keystone Shortway | 17.3 mi | 24m |
| State Highway 96A | 17.1 mi | 23m |
| Routes 5 and 20 | 11.2 mi | 17m |
Step-by-step road directions between Islip, NY and Ontario County, 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
Continue on I 380
Merge onto I 81
Keep slight right at fork onto I 81
Keep slight left at fork onto I 81
Take the exit
Turn right onto NY 26
At end of road, turn left onto US 11; NY 26
Continue on US 11; NY 79
Keep slight right at fork onto NY 79
Continue on NY 79
Turn right onto Taughannock Boulevard
Turn left onto NY 96
Continue on NY 96
Continue on NY 96
Continue on NY 96
Continue on NY 96
Continue on NY 96
Turn right onto CR 141A
Continue on CR 141
Turn left onto NY 89
Turn left onto Center Road
Turn right onto NY 96
Continue on NY 96
Continue on NY 96A
Continue on NY 96A
Turn left onto US 20; NY 5
Continue on US 20; NY 5
Continue on US 20; NY 5
Continue on US 20; NY 5
Continue on US 20; NY 5
Continue on US 20; NY 5
Keep slight left at fork onto US 20; NY 5
Turn left onto Middle Cheshire Road
Turn right
Arrive at destination
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 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 74 miles or 1h 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 168.5 miles or 3h 33m 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 50m
Traffic, exits, and arrival timing usually matter more near Ontario County, 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.
Day 1
Settle into the route from Islip, NY
This is one driving day of about 336.9 miles and 7h 20m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 168.5 mi from Islip, NY · 3h 33m into the drive
Mid-route town
Meal stop
168 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 74 miles helps settle the day before fatigue starts building.
The midpoint is around 168.5 miles from Islip, NY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 81 if your tank is already low. That segment runs about 73.8 miles.
The final approach into Ontario County, 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 Ontario County, NY.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$55.46 one way
$110.91 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $59.97 | $119.93 |
| premium | $4.92 | $65.30 | $130.60 |
| diesel | $5.61 | $74.38 | $148.77 |
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
$55
Tolls
$23
Meals
$25–$50
Total
$103–$128
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 117.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $35 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 101.1 | 1 | $35.37 | $16.17 |
| Efficient EV | 84.2 | 0 | $29.48 | $13.48 |
| EV Truck/SUV | 134.8 | 1 | $47.17 | $21.56 |
Gas CO2
118 kg
EV CO2
39 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.
Current conditions at both ends of the drive.
Origin
Morning in Islip on Friday
Local time
6:56 AM
EDT
Current temp
78°F
Mostly Sunny
Destination
Morning in Ontario County on Friday
Local time
6:56 AM
EDT
Current temp
37°F
Unavailable
57°F
Ramapo, NY
168 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.
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
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.
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. Pages are published only after passing our data-quality checks; our methodology page documents refresh cadence, editorial standards, and known limitations.
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