Origin
Islip, NY
Morning in Islip on Friday
Local time
8:43 AM
EDT
Current temp
44°F
Unavailable
Live forecast
Trip from Islip, NY to Mount Vernon, NY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards
Drive Time
1h 11m
Distance
48.6 mi
78 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$8
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 6m
★
6 AM
1h 12m
8 AM
1h 23m
10 AM
1h 16m
12 PM
1h 15m
3 PM
1h 16m
5 PM
1h 23m
8 PM
1h 8m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Islip, NY
Wikimedia Commons
Mount Vernon, NY
Wikimedia Commons
Trip Overview
This straightforward 48.6-mile drive from Islip, NY, to Mount Vernon, NY, is easily manageable in about 1 hour and 11 minutes, making it a perfect single-day trip. You'll primarily navigate well-established parkways and expressways, with a projected fuel cost of around $8. The route is focused on efficient highway travel, so don't expect many detours or leisurely stops. Given its relatively short distance and direct nature, this trip is ideal for getting from point A to point B without significant time commitment. It's a practical option for anyone needing to traverse this section of New York.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 11m. Total distance: 48.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 11m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (75%). Some complex stretches to watch for.
Drive Character
Expect a highway-focused experience for about 75% of this 48.6-mile journey. The drive begins on the Southern State Parkway, which accounts for the longest uninterrupted stretch at 24.7 miles, offering a consistent pace. You'll then transition to the Clearview Expressway and subsequently the Throgs Neck Expressway, maintaining a predominantly high-speed environment. This route is designed for efficiency, meaning the character of the road remains largely consistent, favoring smooth, albeit potentially busy, highway driving throughout its duration.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 41 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Southern State Parkway is the longest continuous segment at about 24.7 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Southern State Parkway and Clearview Expressway. 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 Effort
10/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 48.6 miles you will encounter 27 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 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 27 key pointsThese 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
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
9
46.3 mi into trip
|
~1h 6m in
Keep slight left at fork toward US 1 South: Shopping Center, Saint Paul's Church
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the left / right lanes.
Toward US 1 South: Shopping Center, Saint Paul'...
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 Mount Vernon, NY, road signs point toward Deer Park, So West: New York, Cross Island Parkway North, Hempstead Avenue West, Grandstand and Hutchinson Parkway North - among others.
Deer Park
3.6 mi in
|
~6m
|
via CR 57
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
Hutchinson Parkway North
43.9 mi in
|
~1h 2m
Hutchinson River Parkway North
44 mi in
|
~1h 2m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Southern State Parkway | 24.7 mi | 31m |
| Clearview Expressway | 5 mi | 5m |
| Throgs Neck Expressway | 2.5 mi | 3m |
| Throgs Neck Bridge | 2 mi | 3m |
| Hutchinson River Parkway | 1.9 mi | 2m |
| Main Street | 1.8 mi | 3m |
| South Fulton Avenue | 1.3 mi | 2m |
| Cross Island Parkway | 1.3 mi | 1m |
Longest stretch:
Southern State Parkway
— 24.7 mi, about 31m
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and Mount Vernon, 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 Park
Use 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 Bridge
Use 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 26B
Toward NY 24: UBS Arena-Belmont Park
Use the slight right lane.
16
Keep slight left at fork
437 ft
·
12 sec
Toward NY 24 West: Hempstead Avenue
Use 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 West
Use 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 Bridge
Use 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 10
Toward I 695 North: New Haven
Use the straight / slight right lanes.
28
Merge onto I 95
1.0 mi
·
1 min
·
Bruckner Expressway
29
Continue on I 95
0.2 mi
·
18 sec
·
New England Thruway
30
Take the exit
430 ft
·
14 sec
Exit 9
Toward Hutchinson Parkway North
Use the slight right lane.
31
Keep slight left at fork
0.2 mi
·
31 sec
Toward Hutchinson River Parkway North
Use the straight / right lanes.
32
Merge onto HR
1.9 mi
·
2 min
·
Hutchinson River Parkway
Use the straight / slight right lanes.
33
Take the exit
0.2 mi
·
21 sec
Toward US 1: Pelham Manor
34
Keep slight left at fork
264 ft
·
14 sec
Toward US 1 South: Shopping Center, Saint Paul's Church
Use the left / right lanes.
35
Turn left onto US 1
0.2 mi
·
29 sec
·
Boston Post Road
Use the left lane.
36
Turn right onto Pelham Parkway
0.3 mi
·
35 sec
·
Pelham Parkway
37
Continue on South Fulton Avenue
1.3 mi
·
2 min
·
South Fulton Avenue
38
Turn left onto East 1st Street
0.4 mi
·
54 sec
·
East 1st Street
39
Turn right onto Gramatan Avenue
361 ft
·
13 sec
·
Gramatan Avenue
40
Turn right onto East Prospect Avenue
56 ft
·
1 sec
·
East Prospect Avenue
41
Arrive at destination
East Prospect Avenue
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 24.3 mi from Islip, NY · 34m into the drive
Mid-route town
Meal stop
24 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 11 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 24.3 miles from Islip, NY, which is a good place for a longer meal and fuel stop.
Arriving in Mount Vernon, NY
The final approach into Mount Vernon, NY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$8.00 one way
$16.00 round trip
$4.18/gal
25.4 MPG avg
17 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $8.65 | $17.30 |
| premium | $4.92 | $9.42 | $18.84 |
| diesel | $5.61 | $10.73 | $21.46 |
Estimated Tolls: $6.55
Throgs Neck Bridge
$6.55
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Drive Cost (one way)
Fuel
$8
Tolls
$7
Total
$15
Estimated CO2 emission: 17 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $5 in charging · 0 stops · 65% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 14.6 | 0 | $5.10 | $2.33 |
| Efficient EV | 12.2 | 0 | $4.25 | $1.94 |
| EV Truck/SUV | 19.4 | 0 | $6.80 | $3.11 |
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.
Travel Intel
Current conditions at both ends of the drive.
Destination
Mount Vernon, NY
Morning in Mount Vernon on Friday
Local time
8:43 AM
EDT
Current temp
46°F
Unavailable
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
2 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
1h 11m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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 Mount Vernon, NY covers 48.6 miles and takes about 1h 11m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Southern State Parkway, Clearview Expressway, Throgs Neck Expressway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 24.3 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 $8.00 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 48.6 miles you will encounter 27 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
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 Mount Vernon, NY, road signs point toward Deer Park, So West: New York, Cross Island Parkway North, Hempstead Avenue West, Grandstand and Hutchinson Parkway North - among others.
Yes. Nearby national parks include Hamilton Grange National Memorial, General Grant National Memorial and Fire Island National Seashore. There are 6 parks within detour distance of this route.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from OSRM over OpenStreetMap. Fuel cost uses EIA weekly regional averages. National park proximity is from the NPS API. Pages are published only after passing our data-quality checks; our methodology page documents refresh cadence, editorial standards, and known limitations.
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