The drive from Islip, NY to Port Byron, NY covers 308.3 miles and takes about 6h 39m 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, I 380 for much of the mileage,
and the overall profile is turn-heavy local drive.
The longest uninterrupted segment is about 97.3 miles on I 81.
At current regular gas prices, budget about $50.75 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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
154.2 miles from Islip, NY
A natural place for your longest stop of the day
, about 3h 17m 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
Doable as a same-day drive at 6h 39m. Total distance: 308.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 39m drive, plan rest stops for pacing.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
Expect a 6h 39m drive with frequent turns across 308.3 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 61 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 97.3 miles.
How Hard Is This Drive?
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.
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 37 significant decision points across 308.3 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 37 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
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
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 Port Byron, 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
Main Roads
Road
Distance
Duration
I 81
97.3 mi
1h 55m
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
Clinton Street
10.5 mi
15m
East Lake Road
9.9 mi
14m
East Genesee Street
7.3 mi
13m
Longest stretch:
I 81
— 97.3 mi, about 1h 55m
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and Port Byron, 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 left at fork
0.4 mi·29 sec
Toward I 95 South, NJTP South: HackensackUse 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 69Toward I 80 West: Paterson, HackensackUse 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 293Toward 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
37 mi·43 min·I 81
Toward I 81 North: Syracuse
45
Take the exit
0.1 mi·21 sec
Exit 52Toward NY 13: Cortland
46
Turn right onto NY 13
39 ft·5 sec·Clinton Avenue
47
Turn left onto Locust Avenue
1.2 mi·2 min·Locust Avenue
48
Continue on Albany Street
0.6 mi·1 min·Albany Street
49
At end of road, turn right onto US 11; NY 41
0.4 mi·1 min·South Main Street
50
Turn left onto NY 41
10 mi·15 min·Clinton Street
51
Continue on NY 41
0.5 mi·49 sec·East Lake Road
52
Continue on NY 41
4.8 mi·7 min·State Route 41
53
Continue on NY 41
9.4 mi·13 min·East Lake Road
54
Continue on NY 41
0.5 mi·48 sec·East Lake Street
55
Turn left onto US 20
7.3 mi·13 min·East Genesee Street
56
Turn right onto US 20
0.2 mi·12 sec·North Fulton Street
57
Turn left onto US 20; NY 5
0.4 mi·1 min·Arterial West
58
Continue on US 20; NY 5; NY 38
0.2 mi·16 sec·Chase Street
59
Turn right onto NY 38
7.2 mi·12 min·State Street
60
Continue on NY 38
0.4 mi·44 sec·Main Street
61
Arrive at destination
NY 38
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 1 meaningful break for fuel, food, and rest.
The halfway point lands around 154.2 miles from Islip, NY, or about 3h 17m into the drive.
The longest continuous stretch on this route runs about 97.3 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 68 miles or 1h 32m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 154.2 miles or 3h 17m 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 13m
Traffic, exits, and arrival timing usually matter more near Port Byron, 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 308.3 miles and 6h 39m.
Your first comfortable stop window is around 68 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 97.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 154.2 mi from Islip, NY
· 3h 17m into the drive
The midpoint is around 154.2 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 I 81 if your tank is already low. That segment runs about 97.3 miles.
Arriving in Port Byron, NY
The final approach into Port Byron, 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 Port Byron, NY.
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.
Harriet Tubman National Historical Park
National Historical Park
Harriet Tubman was guided by a deep faith and devotion to family, freedom, and community. After emancipating herself and members of her family, she moved them from Ontario, Canada to Fleming and Aubur...
3 mi from route
~8 min detour
Free
near mile 297.7
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...
4 mi from route
~11 min detour
Free
near mile 53.2
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
~12 min detour
Free
near mile 53.2
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
~23 min detour
Free
near mile 53.2
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
~26 min detour
Free
near mile 53.2
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...
11 mi from route
~28 min detour
Free
near mile 53.2
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$50.75 one way
$101.50 round trip
$4.18/gal25.4 MPG avg108 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$54.87
$109.75
premium
$4.92
$59.75
$119.51
diesel
$5.61
$68.07
$136.14
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
$51
Tolls
$23
Meals
$25–$50
Total
$99–$124
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 107.9 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
92.5
1
$32.37
$14.80
Efficient EV
77.1
0
$26.98
$12.33
EV Truck/SUV
123.3
1
$43.16
$19.73
Gas CO2
108 kg
EV CO2
36 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.
Forecast as of Apr 15, 2026
Origin
Islip, NY
Evening
in Islip on Friday
Local time
5:56 PM
EDT
Current temp
44°F
Unavailable
Live forecast
Destination
Port Byron, NY
Evening
in Port Byron on Friday
Local time
5:56 PM
EDT
Current temp
42°F
Unavailable
Live forecast
57°F
Ramapo, NY
154 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
2 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
6h 39m 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 Islip, NY to Port Byron, NY covers 308.3 miles and takes about 6h 39m 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. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 154.2 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 $50.75 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 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 37 significant decision points across 308.3 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 Port Byron, NY, road signs point toward Cross Island Parkway North, Hempstead Avenue West, Grandstand, Upper Level, Njtp South: Hackensack and Hackensack - among others.
Yes. Nearby national parks include Harriet Tubman National Historical Park, General Grant National Memorial and Hamilton Grange National Memorial. 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.
