Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
52m
Distance
34.3 mi
55 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$6
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
Port Washington, NY
Wikimedia Commons
The drive from Islip, NY to Port Washington, NY covers 34.3 miles and takes about 52m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Long Island Expressway, Islip Avenue, Port Washington Boulevard for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 22.8 miles on Long Island Expressway. At current regular gas prices, budget about $5.65 one way before food or hotel costs.
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
Port Washington is a hamlet in Nassau County, on the North Shore of Long Island, in New York.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 52m. Total distance: 34.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
52m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (70%). Some complex stretches to watch for.
This is a 52m highway drive covering 34.3 miles, with most of the trip on Long Island Expressway and Islip Avenue. The longest continuous stretch is about 22.8 miles on Long Island Expressway.
This is a straightforward highway drive that stays mostly on Long Island Expressway and Islip Avenue. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.2 miles in near NY 111 / Islip Avenue.
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 34.3 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.2 miles (NY 111 / Islip Avenue): Lane positioning matters here; at 5.2 miles (CR 67 / Motor Parkway): Lane positioning matters here; at 6.6 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn left onto NY 111 / Islip Avenue
Lane positioning matters here
Turn left onto CR 67 / Motor Parkway
Lane positioning matters here
Merge onto I 495 / Long Island Expressway
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward Searingtown Road, Shelter Rock Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn right onto Searingtown Road
Lane positioning matters here
| Road | Distance | Duration |
|---|---|---|
| Long Island Expressway | 22.8 mi | 31m |
| Islip Avenue | 4 mi | 7m |
| Port Washington Boulevard | 2.3 mi | 4m |
| Searingtown Road | 1.2 mi | 2m |
| Joshuas Path | 1.1 mi | 1m |
| Motor Parkway | 1 mi | 1m |
| Murray Avenue | 0.4 mi | 1m |
| Willowdale Avenue | 0.4 mi | <1m |
Step-by-step road directions between Islip, NY and Port Washington, NY.
Start on NY 27A
Turn left onto NY 111
Continue on NY 111
Turn left onto CR 67
Turn left onto LIE North Service Road
Take the ramp
Merge onto I 495
Take the exit
Continue on North Service Road
Turn right onto Searingtown Road
Continue on NY 101
Turn left onto Willowdale Avenue
At end of road, turn right onto Mackey Avenue
Turn left onto Murray Avenue
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 17.2 mi from Islip, NY · 26m into the drive
Mid-route town
Meal stop
17 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 34 miles helps settle the day before fatigue starts building.
The midpoint is around 17.2 miles from Islip, NY, which is a good place for a longer meal and fuel stop.
Allow a few extra minutes for the final approach into Port Washington, NY if you are unfamiliar with the area.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$5.65 one way
$11.29 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $6.11 | $12.21 |
| premium | $4.92 | $6.65 | $13.30 |
| diesel | $5.61 | $7.57 | $15.15 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 12 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 10.3 | 0 | $3.60 | $1.65 |
| Efficient EV | 8.6 | 0 | $3.00 | $1.37 |
| EV Truck/SUV | 13.7 | 0 | $4.80 | $2.20 |
Gas CO2
12 kg
EV CO2
4 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Saturday
Local time
11:28 AM
EDT
Current temp
58°F
Partly Sunny
Wind Advisory
Wind Advisory issued April 18 at 2:37AM EDT until April 19 at 12:00AM EDT by NWS Burlington VT
Destination
Morning in Port Washington on Saturday
Local time
11:28 AM
EDT
Current temp
48°F
Unavailable
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
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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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