Origin
Islip, NY
Afternoon in Islip on Saturday
Local time
1:38 PM
EDT
Current temp
44°F
Unavailable
Live forecast
Trip from Islip, NY to De Witt, NY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
6h 11m
Distance
300.4 mi
483 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$49
one way
EV Charging
Unknown
Best Time to Leave
4 AM
5h 58m
★
6 AM
6h 11m
8 AM
6h 37m
10 AM
6h 20m
12 PM
6h 17m
3 PM
6h 21m
5 PM
6h 35m
8 PM
6h 3m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Islip, NY
Wikimedia Commons
De Witt, NY
Renan Tagliaferro
Trip Overview
Islip, NY to De Witt, NY is 300.4 miles and takes about 6h 11m via I 81 and I 380, with a fuel budget near $49 and enough daylight to finish in a day. This drive primarily stays within New York, moving from the Northeast region to the Northeast region. It's a straightforward, highway-focused trip that's well-suited for a single-day journey. You’ll be on major roadways for most of the distance, making it a practical option for getting from point A to point B efficiently.
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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
150.2 miles from Islip, NY
A natural place for your longest stop of the day , about 3h 12m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 81 | 126.4 mi | 2h 28m |
| Christopher Columbus Highway | 68.2 mi | 1h 20m |
| I 380 | 27.7 mi | 30m |
| Southern State Parkway | 24.7 mi | 31m |
| Keystone Shortway | 17.3 mi | 24m |
| Cross Bronx Expressway | 6.6 mi | 8m |
| Clearview Expressway | 5 mi | 5m |
| I 481 | 4.7 mi | 5m |
Longest stretch:
I 81
— 126.4 mi, about 2h 28m
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and De Witt, 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 Park
Use 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 Bridge
Use 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 26B
Toward NY 24: UBS Arena-Belmont Park
Use the slight right lane.
16
Keep slight left at fork
437 ft
·
12 sec
Toward NY 24 West: Hempstead Avenue
Use 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 West
Use 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 Bridge
Use 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: Hackensack
Use the straight / slight right lanes.
34
Keep slight left at fork
0.4 mi
·
29 sec
Toward I 95 South, NJTP South: Hackensack
Use the slight left / slight right lanes.
35
Merge onto I 95; NJTP
2.0 mi
·
2 min
·
New Jersey Turnpike
Use the straight / slight right lanes.
36
Take the exit
0.8 mi
·
1 min
Exit 69
Toward I 80 West: Paterson, Hackensack
Use the straight / slight right lanes.
37
Continue on I 80
68 mi
·
1 hr 20 min
·
Christopher Columbus Highway
Use the straight / slight right lanes.
38
Keep slight left at fork onto I 80
5.5 mi
·
8 min
·
Keystone Shortway
Use the straight / slight right lanes.
39
Keep slight left at fork onto I 80
12 mi
·
15 min
·
Keystone Shortway
40
Take the exit
0.7 mi
·
46 sec
Exit 293
Toward I 380 North: Scranton
41
Continue on I 380
28 mi
·
30 min
·
I 380
Use the straight lane.
42
Merge onto I 81
58 mi
·
1 hr 9 min
·
I 81
Use the straight lane.
43
Keep slight right at fork onto I 81
1.8 mi
·
2 min
·
I 81
Toward I 81 North: Syracuse, Albany
44
Keep slight left at fork onto I 81
66 mi
·
1 hr 17 min
·
I 81
Toward I 81 North: Syracuse
Use the straight / slight right lanes.
45
Keep slight right at fork onto I-481
0.7 mi
·
49 sec
·
I-481
Exit 16A
Use the slight right lane.
46
Continue on I 481
4.7 mi
·
5 min
·
I 481
Use the straight lane.
47
Take the exit
0.3 mi
·
49 sec
Exit 3W
Toward NY 5 West, NY 92 West: DeWitt
48
Merge onto NY 5; NY 92
0.8 mi
·
1 min
·
East Genesee Street
Use the straight / slight right lanes.
49
Turn right onto Terrace Drive
363 ft
·
17 sec
·
Terrace Drive
50
Turn right onto Lansdowne Road
163 ft
·
11 sec
·
Lansdowne Road
51
Turn left onto Downing Road
0.1 mi
·
32 sec
·
Downing Road
52
Turn left onto Hampshire Drive
272 ft
·
11 sec
·
Hampshire Drive
53
Arrive at destination
Hampshire Drive
Trip Plan
Given the 6h 11m duration, starting your drive in the morning from Islip will allow you to comfortably reach De Witt before evening. While there's only one recommended stop, the longest stretch without a break is over 126 miles, so plan for a fuel and rest stop around that mark. Keep an eye on your fuel gauge, especially as you approach the mid-point of the drive on I 81, as services can sometimes be spaced out on longer interstate segments. This trip is easily manageable in a single day, so you have flexibility with your departure time.
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 1 meaningful break for fuel, food, and rest.
The halfway point lands around 150.2 miles from Islip, NY, or about 3h 12m into the drive.
The longest continuous stretch on this route runs about 126.4 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 66 miles or 1h 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 150.2 miles or 3h 12m 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 5m
Traffic, exits, and arrival timing usually matter more near De Witt, 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.
Day 1
Settle into the route from Islip, NY
This is one driving day of about 300.4 miles and 6h 11m.
Your first comfortable stop window is around 66 miles from Islip, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 81 for about 126.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
150 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 66 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 150.2 miles from Islip, NY, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 365 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.
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
8
50.3 mi into trip
|
~1h 11m in
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
Use the slight left / slight right lanes.
Toward I 95 South, NJTP South: Hackensack
Fuel & Cost
Regular Gas
$49.45 one way
$98.90 round trip
$4.18/gal
25.4 MPG avg
105 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $53.47 | $106.94 |
| premium | $4.92 | $58.22 | $116.45 |
| diesel | $5.61 | $66.32 | $132.65 |
Estimated Tolls: $22.83
George Washington Bridge
$16.00
Throgs Neck Bridge
$6.55
New Jersey Turnpike
(2 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
$49
Tolls
$23
Meals
$25–$50
Total
$97–$122
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 105.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $32 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 90.1 | 1 | $31.54 | $14.42 |
| Efficient EV | 75.1 | 0 | $26.28 | $12.02 |
| EV Truck/SUV | 120.2 | 1 | $42.06 | $19.23 |
Gas CO2
105 kg
EV CO2
35 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.
Destination
De Witt, NY
Afternoon in De Witt on Saturday
Local time
1:38 PM
EDT
Current temp
47°F
Unavailable
Live forecast
49°F
Ramapo, NY
150 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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 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
6h 11m 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.
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...
5 mi from route
~11 min detour
Free
near mile 51.8
View on nps.gov
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...
5 mi from route
~11 min detour
Free
near mile 51.8
View on nps.gov
Stonewall National Monument
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...
10 mi from route
~25 min detour
Free
near mile 51.8
View on nps.gov
African Burial Ground National Monument
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...
11 mi from route
~28 min detour
Free
near mile 51.8
View on nps.gov
Fire Island National Seashore
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...
11 mi from route
~28 min detour
Free
View on nps.gov
Castle Clinton National Monument
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...
12 mi from route
~30 min detour
Free
near mile 51.8
View on nps.gov
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
This is a highway-focused drive, with 67% of the route on major interstates. You'll spend a significant portion of your time on I 81, including the longest uninterrupted stretch of 126.4 miles. The journey begins on roads like Christopher Columbus Highway and I 380 before merging onto the more expansive I 81. Expect a consistent driving experience primarily on these larger roadways, which means generally smooth sailing and higher speed limits for most of the 6h 11m trip.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 53 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 81 is the longest continuous segment at about 126.4 miles.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on I 81 and Christopher Columbus Highway. 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 Effort
10/10
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 300.4 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.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
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 De Witt, 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
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
Hackensack
52.6 mi in
|
~1h 14m
Albany
225.4 mi in
|
~4h 41m
|
via I 81
About the Cities
Starting in Islip, NY
Full guide →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
- • 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
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 11m. Total distance: 300.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 11m drive, plan rest stops for pacing.
Frequently Asked Questions
The drive from Islip, NY to De Witt, NY covers 300.4 miles and takes about 6h 11m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 81, Christopher Columbus Highway, I 380. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 150.2 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 $49.45 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 1 meaningful break 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 300.4 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 De Witt, NY, road signs point toward Cross Island Parkway North, Hempstead Avenue West, Grandstand, Upper Level, Njtp South: Hackensack and Hackensack - among others.
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.
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