Origin
Yaphank, NY
Night in Yaphank on Saturday
Local time
10:44 PM
EDT
Current temp
43°F
Unavailable
Live forecast
Trip from Yaphank, NY to Islip, NY
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
29m
Distance
19.2 mi
31 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 27m
★
6 AM
0h 29m
8 AM
0h 35m
10 AM
0h 31m
12 PM
0h 31m
3 PM
0h 31m
5 PM
0h 34m
8 PM
0h 28m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Yaphank, NY
Wikimedia Commons
Islip, NY
Wikimedia Commons
Trip Overview
This short 19.2-mile drive from Yaphank to Islip, NY, will take you approximately 29 minutes, making it an ideal day trip. You'll primarily navigate using Sunrise Highway, Patchogue-Yaphank Road, and Islip Avenue, with about 100% of the journey on local roads and highways. The estimated fuel cost is a budget-friendly $3. Given its brevity, this route doesn't require an overnight stay, offering flexibility for your schedule. It's a straightforward drive within the Northeast region, perfect for a quick local excursion.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Sunrise Highway | 13.1 mi | 17m |
| Patchogue-Yaphank Road | 2.6 mi | 4m |
| Islip Avenue | 0.9 mi | 1m |
| Sills Road | 0.7 mi | <1m |
| Yaphank Avenue | 0.3 mi | <1m |
| Long Island Expressway | 0.2 mi | <1m |
| Main Street | 0.2 mi | <1m |
| Sunrise Service Road North | 0.1 mi | <1m |
Longest stretch:
Sunrise Highway
— 13.1 mi, about 17m
Turn-by-Turn Driving Directions
Step-by-step road directions between Yaphank, NY and Islip, NY.
1
Start on CR 21
100 ft
·
5 sec
·
Main Street
2
Turn right onto CR 21
0.3 mi
·
35 sec
·
Yaphank Avenue
3
Take the ramp
0.4 mi
·
49 sec
Toward I 495: New York
Use the straight / right lanes.
4
Merge onto I 495
0.2 mi
·
18 sec
·
Long Island Expressway
5
Take the exit
0.5 mi
·
53 sec
Exit 66
Toward CR 101: Sills Road, Yaphank, East Patchogue
Use the slight right lane.
6
Turn left onto CR 101
2.6 mi
·
4 min
·
Patchogue-Yaphank Road
Toward I 495 East, NY 27, CR 16: East Patchogue, Riverhead
Use the left / straight lanes.
7
Continue on CR 101
0.7 mi
·
57 sec
·
Sills Road
Use the right lane.
8
Turn right onto Sunrise Service Road North
0.1 mi
·
18 sec
·
Sunrise Service Road North
Use the right lane.
9
Take the ramp
0.1 mi
·
13 sec
Toward NY 27 West
10
Merge onto NY 27
12 mi
·
17 min
·
Sunrise Highway
Use the straight / slight right lanes.
11
Take the exit
0.1 mi
·
14 sec
Exit 45
Toward NY 111: Islip, Smithtown
Use the straight / slight right lanes.
12
Turn straight onto Sunrise Highway
0.6 mi
·
58 sec
·
Sunrise Highway
13
Turn slight right
0.1 mi
·
34 sec
Toward NY 111 South: Islip
14
Turn straight onto NY 111
0.9 mi
·
1 min
·
Islip Avenue
15
At end of road, turn right onto NY 27A
0.2 mi
·
14 sec
·
Main Street
Use the right lane.
16
Arrive at destination
NY 27A
Heads-up: tricky spots
5 of 105 decision points cluster between mile 0.3 and 19 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.3 mi into trip
|
~0m in
Take the ramp toward I 495: New York
Lane positioning matters here
Use the straight / right lanes.
Toward I 495: New York
8
1 mi into trip
|
~1m in
Take the exit toward CR 101: Sills Road, Yaphank, East Patchogue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 66
Toward CR 101: Sills Road, Yaphank, East Patcho...
6
1.4 mi into trip
|
~2m in
|
CR 101 / Patchogue-Yaphank Road
Turn left onto CR 101 / Patchogue-Yaphank Road toward I 495 East, NY 27, CR 16: East Patchogue, Riverhead
Lane positioning matters here. Multiple destination signs - pick the right one
Use the left / straight lanes.
Toward I 495 East, NY 27, CR 16: East Patchogue...
8
17.3 mi into trip
|
~25m in
Take the exit toward NY 111: Islip, Smithtown
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.
Exit 45
Toward NY 111: Islip, Smithtown
6
19 mi into trip
|
~29m in
|
NY 27A / Main Street
At end of road, turn right onto NY 27A / Main Street
Lane positioning matters here
Use the right lane.
Fuel & Cost
Regular Gas
$3.16 one way
$6.32 round trip
$4.18/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $3.42 | $6.83 |
| premium | $4.92 | $3.72 | $7.44 |
| diesel | $5.61 | $4.24 | $8.48 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.8 | 0 | $2.02 | $0.92 |
| Efficient EV | 4.8 | 0 | $1.68 | $0.77 |
| EV Truck/SUV | 7.7 | 0 | $2.69 | $1.23 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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.
Travel Intel
Current conditions at both ends of the drive.
Destination
Islip, NY
Night in Islip on Saturday
Local time
10:44 PM
EDT
Current temp
50°F
Scattered Rain Showers then Partly Cloudy
NE 6 mph
33% chance
Live forecast
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
7 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
29m on the road
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.
What kind of drive is this?
Expect a turn-heavy local drive for this trip. While the longest uninterrupted stretch is 13.1 miles on Sunrise Highway, much of the journey involves navigating through local streets and connecting roads. The 100% highway share indicates a focus on paved surfaces and potentially some faster sections, but the 'turn-heavy' profile suggests frequent intersections and changes in direction. You'll likely experience a mix of suburban driving as you traverse your way from Yaphank to Islip.
Only 1% highway — the rest is turn-by-turn surface driving.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 13.1 mi on Sunrise Highway.
How Hard Is This Drive?
7/10
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 0.3 miles in.
Driving Effort
7/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 10 decision points packed into just 19.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 29m.
Where does it get tricky?
The main spots that need attention: at 0.3 miles: Lane positioning matters here; at 1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 1.4 miles (CR 101 / Patchogue-Yaphank Road): Lane positioning matters here. Multiple destination signs - pick the right one.
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 Yaphank, NY and Islip, NY, road signs point toward Cr 16: East Patchogue, Riverhead and Smithtown.
Cr 16: East Patchogue
1.4 mi in
|
~2m
|
via CR 101
Riverhead
1.4 mi in
|
~2m
|
via CR 101
Smithtown
17.3 mi in
|
~25m
About the Cities
Starting in Yaphank, NY
Full guide →Arriving 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 29m. Total distance: 19.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
29m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 13.1 miles on Sunrise Highway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Islip, NY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 0.3 miles: Lane positioning matters here; at 1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 1.4 miles (CR 101 / Patchogue-Yaphank Road): Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Fire Island National Seashore. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Islip, NY before heading back.
How this page is built
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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