Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 8, 2026 · Editorial standards
Drive Time
1h 13m
Distance
49.6 mi
80 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$8
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
Deerfield, NY
Brent Singleton
Islip, NY to Deerfield, NY is 49.6 miles and takes about 1h 13m via Sunrise Highway and County Road 39, with a fuel budget near $8 and enough daylight to finish in a day. This trip stays within New York, connecting two points in the Northeast region. Since it's entirely on surface roads, expect a more local driving experience rather than highway speeds. It's a short enough drive that you won't feel rushed, making it ideal for a quick transit between locations.
| Road | Distance | Duration |
|---|---|---|
| Sunrise Highway | 40.3 mi | 52m |
| County Road 39 | 4.8 mi | 10m |
| Deerfield Road | 1 mi | 2m |
| Head of Pond Road | 0.8 mi | 2m |
| Islip Avenue | 0.8 mi | 1m |
| Seven Ponds Road | 0.7 mi | 1m |
| Lower Seven Ponds Road | 0.5 mi | 1m |
| David Whites Lane | 0.2 mi | <1m |
Step-by-step road directions between Islip, NY and Deerfield, NY.
Start on NY 27A
Turn left onto NY 111
Turn right
Turn straight onto Bittermint Street
Turn left onto Ferndale Boulevard
Turn right onto Sunrise Highway
Take the ramp
Merge onto NY 27
Continue on NY 27; CR 39
Turn left onto David Whites Lane
Continue on Seven Ponds Road
Continue on Lower Seven Ponds Road
Continue on Head of Pond Road
Keep slight right at fork onto Head of Pond Road
At end of road, turn left onto Deerfield Road
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
25 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 11 miles helps settle the day before fatigue starts building.
The midpoint is around 24.8 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.
5 decision points cluster between mile 0.2 and 46.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto NY 111 / Islip Avenue
Lane positioning matters here
Turn right toward NY 27 East
Navigation decision point
Turn left onto Ferndale Boulevard
Navigation decision point
Merge onto NY 27 / Sunrise Highway
Merge point - match speed before joining. Lane positioning matters here
Turn left onto David Whites Lane
Lane positioning matters here
Regular Gas
$8.32 one way
$16.64 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.63 | $9.03 | $18.07 |
| premium | $5.05 | $9.87 | $19.73 |
| diesel | $5.60 | $10.93 | $21.87 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$8
Estimated CO2 emission: 17.4 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $5 in charging · 0 stops · 65% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 14.9 | 0 | $5.21 | $2.38 |
| Efficient EV | 12.4 | 0 | $4.34 | $1.98 |
| EV Truck/SUV | 19.8 | 0 | $6.94 | $3.17 |
Gas CO2
17 kg
EV CO2
6 kg (65% 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
Late night in Islip on Tuesday
Local time
12:39 AM
EDT
Current temp
65°F
Cloudy
Destination
Late night in Deerfield on Tuesday
Local time
12:39 AM
EDT
Current temp
62°F
Cloudy
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.
This route is entirely on surface roads, with 0% highway travel. You'll spend the entire 1 hour and 13 minutes navigating local streets and county roads. The longest continuous stretch on a single road is 40.3 miles on Sunrise Highway. Be prepared for frequent intersections and changes in speed limits as you pass through various communities.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 9 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 49.6 miles you will encounter 9 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 0.9 miles: Navigation decision point; at 1.1 miles (Ferndale Boulevard): Navigation decision point.
Mostly flat terrain
Total Climb
218 ft
Total Descent
161 ft
Highest Point
140 ft
~35.5 mi in
Elevation Range
127 ft
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).
Weekend Trip
Doable as a same-day drive at 1h 13m. Total distance: 49.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 13m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (0%). Some complex stretches to watch for.
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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