Islip to Annsville is 81.4 miles and takes about 2 hours via Southern State Parkway and NY 9A, with a fuel budget near $13 and enough daylight to finish in a day. This trip stays within New York, moving from the Northeast region to the Northeast. It's a straightforward drive focused mainly on parkways and highways, making it a convenient option for a single-day journey. You can expect a relatively quick transit between these two points, with most of your time spent on well-maintained roads.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
40.7 miles from Islip, NY
A natural place for your longest stop of the day
, about 57m into the drive
.
Main Roads
Road
Distance
Duration
Southern State Parkway
24.7 mi
31m
NY 9A
14.7 mi
22m
Sprain Brook Parkway
12.6 mi
17m
Clearview Expressway
5 mi
5m
Throgs Neck Expressway
2.5 mi
3m
South Columbus Avenue
2.3 mi
3m
New England Thruway
2 mi
3m
Throgs Neck Bridge
2 mi
3m
Longest stretch:
Southern State Parkway
— 24.7 mi, about 31m
Traffic on I-295
Hour-of-day weekday pattern from 11 FHWA count stations on your route.
Peak
4 PM
~1,766 veh/hr typical
· worst 2,167
Quietest
2 AM
~199 veh/hr
Peak-to-quiet ratio
8.9×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 48 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and Annsville, 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 right at fork onto I 695
1.8 mi·2 min·Throgs Neck Expressway
Exit 10Toward I 695 North: New HavenUse the straight / slight right lanes.
28
Merge onto I 95
1.0 mi·1 min·Bruckner Expressway
29
Continue on I 95
2.0 mi·3 min·New England Thruway
Use the straight / slight left lanes.
30
Take the exit
351 ft·16 sec
Exit 13Toward Conner StreetUse the slight right lane.
31
Turn left onto Tillotson Avenue
0.1 mi·22 sec·Tillotson Avenue
32
Turn left onto Conner Street
0.3 mi·30 sec·Conner Street
33
Continue on NY 22
0.3 mi·59 sec·Provost Avenue
34
Continue on NY 22
0.2 mi·17 sec·South 3rd Avenue
35
Turn slight right onto NY 22
2.3 mi·3 min·South Columbus Avenue
Use the left / straight lanes.
36
Take the ramp
0.3 mi·37 sec
Toward Cross County Parkway WestUse the left lane.
37
Merge onto Cross County Parkway
0.6 mi·54 sec·Cross County Parkway
38
Take the exit
0.1 mi·18 sec
Exit 6Toward Bronx Parkway, Sprain ParkwayUse the straight / slight right lanes.
39
Keep slight right at fork
0.4 mi·1 min
Toward Bronx Parkway North, Sprain ParkwayUse the slight left / slight right lanes.
40
Merge onto Bronx River Parkway
0.3 mi·32 sec·Bronx River Parkway
41
Keep slight left at fork onto Sprain Brook Parkway
13 mi·17 min·Sprain Brook Parkway
Use the straight / slight right lanes.
42
Continue on Taconic State Parkway
1.8 mi·2 min·Taconic State Parkway
Use the straight / slight right lanes.
43
Take the exit
0.5 mi·1 min
Exit 5Toward NY 9A, NY 100 NorthUse the slight right lane.
44
Continue on NY 9A; NY 100
15 mi·22 min·NY 9A; NY 100
45
Turn left onto US 6; US 9; US 202
0.2 mi·12 sec·US 6; US 9; US 202
46
Enter roundabout onto US 9
21 ft·0 sec·Albany Post Road
Toward Fishkill
47
Continue on US 9
0.6 mi·44 sec·Albany Post Road
Toward Fishkill
48
Turn right onto Roa Hook Road
0.2 mi·31 sec·Roa Hook Road
49
Turn slight right onto Old Albany Post Road
151 ft·4 sec·Old Albany Post Road
50
Arrive at destination
Old Albany Post Road
Trip Plan
Given the relatively short 2-hour duration and 81.4-mile distance, this trip is easily completed in a single day. Consider departing in the morning to take advantage of daylight and avoid potential rush hour traffic, especially as you approach more populated areas. With a fuel cost estimated at $13, you won't need to worry extensively about frequent refueling stops, though it's always wise to keep an eye on your gauge. The longest stretch without a significant change in road type is 24.7 miles on the Southern State Parkway, so plan any brief breaks before or after this segment.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 40.7 miles from Islip, NY, or about 57m into the drive.
The longest continuous stretch on this route runs about 24.7 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 18 miles or 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 40.7 miles or 57m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 41m
Traffic, exits, and arrival timing usually matter more near Annsville, 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 81.4 miles and 2h.
Your first comfortable stop window is around 18 miles from Islip, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Southern State Parkway for about 24.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 31
5 decision points cluster between mile 3.6 and 49.9 — 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
40.9 mi into trip|~58m in|I 695 / Throgs Neck Expressway
Keep slight right at fork onto I 695 / Throgs Neck Expressway toward I 695 North: New Haven
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 10
Toward I 695 North: New Haven
8
49.9 mi into trip|~1h 13m in
Take the exit toward Bronx Parkway, Sprain Parkway
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 6
Toward Bronx Parkway, Sprain Parkway
Fuel & Cost
Regular Gas
$14.45 one way
$28.89 round trip
$4.51/gal25.4 MPG avg29 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.85
$15.53
$31.06
premium
$5.24
$16.79
$33.58
diesel
$5.35
$17.15
$34.29
Estimated Tolls: $6.69
Throgs Neck Bridge
$6.55
New England Thruway
(2 mi)$0.14
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
$14
Tolls
$7
Meals
$25–$50
Total
$46–$71
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 28.5 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $9 in charging
· 0 stops
· 64% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
24.4
0
$8.55
$3.91
Efficient EV
20.4
0
$7.12
$3.26
EV Truck/SUV
32.6
0
$11.40
$5.21
Gas CO2
28 kg
EV CO2
10 kg (64% 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.
Forecast as of Jun 2, 2026
Origin
Islip, NY
Afternoon
in Islip on Wednesday
Local time
4:07 PM
EDT
Current temp
74°F
Mostly Sunny
NW 8 mph0% chanceLive forecast
Destination
Annsville, NY
Afternoon
in Annsville on Wednesday
Local time
4:07 PM
EDT
Current temp
78°F
Mostly Sunny
N 7 mph1% chanceLive forecast
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
4 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
2h 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.
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...
7 mi from route
~19 min detour
Free
near mile 42.1
Caution: Lower Crypt Access Subject to Safe Conditions
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...
7 mi from route
~17 min detour
Free
near mile 42.1
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...
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...
12 mi from route
~31 min detour
Free
near mile 36.5
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...
12 mi from route
~29 min detour
Free
near mile 42.1
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...
13 mi from route
~33 min detour
Free
near mile 36.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is a highway-focused drive, with 61% of the route utilizing major roadways. You'll encounter the Southern State Parkway for a significant portion, including a continuous stretch of 24.7 miles, before transitioning to NY 9A and the Sprain Brook Parkway. The character of the drive is largely defined by these parkways and parkways, offering a consistent pace for most of the 81.4 miles. Expect a smooth, albeit primarily highway-oriented, experience for the duration of the approximately 2-hour trip.
61% highway — fuel and pacing are the main things to plan.
50 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 24.7 mi on Southern State Parkway.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on Southern State Parkway and NY 9A. 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 31 significant decision points across 81.4 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.
Elevation Profile
Mostly flat terrain
338 ft5 ft
Total Climb
426 ft
Total Descent
434 ft
Highest Point
338 ft
~69.8 mi in
Elevation Range
334 ft
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 Annsville, NY, road signs point toward So West: New York, Cross Island Parkway North, Hempstead Avenue West, Grandstand, Cross County Parkway West and Bronx Parkway North.
So West: New York
4.5 mi in|~8m
Cross Island Parkway North
29.4 mi in|~40m
Hempstead Avenue West
31.1 mi in|~43m
Grandstand
31.3 mi in|~43m
Cross County Parkway West
49 mi in|~1h 11m
Bronx Parkway North
50 mi in|~1h 13m
Detours Along the Way
Tagged by where each one fits in your drive — first break, midpoint, final stretch.
Hooters
Restaurant
Around the midpoint, short detour
Halfway reset
1.5 mi from route
~4 min detour
Fresh Meadows, NY
Cuisine: burger
Edenwald Playground
Park
Around the midpoint, right off the route
Halfway reset
0.7 mi from route
~2 min detour
Firemens Memorial Field
Park
Early in the drive, right off the route
Early stretch
0.8 mi from route
~2 min detour
Allerton Playground
Park
Around the midpoint, short detour
Halfway reset
1.2 mi from route
~3 min detour
Gunther Field
Park
Early in the drive, short detour
Early stretch
1.3 mi from route
~3 min detour
Halls Pond Park
Park
Early in the drive, short detour
Early stretch
1.3 mi from route
~3 min detour
Brush Park
Park
Around the midpoint, short detour
Halfway reset
1.4 mi from route
~4 min detour
Pelham Bay Park World War Memorial
Memorial
Around the midpoint, short detour
Halfway reset
1.7 mi from route
~4 min detour
Points of interest from OpenStreetMap contributors. Listings may not reflect current hours or availability.
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 2h. Total distance: 81.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (61%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 24.7 miles on Southern State Parkway. The full list of main roads is in the Roads section above.
Expect about $6.69 in tolls one way, starting with Throgs Neck Bridge. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 1 rest area or service plaza within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Annsville, NY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. There are 1 rest area along the route for bathroom stops.
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.
Yes — General Grant National Memorial, Hamilton Grange National Memorial and Fire Island National Seashore (6 total within detour distance). 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 Annsville, NY before heading back.
