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Trip from Smithtown, NY to Mount Vernon, NY

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

1h 10m

Distance

47.7 mi

77 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$8

one way

EV Charging

Good

8 stations

Best Time to Leave

Save up to 17 min
4 AM
1h 5m ★
6 AM
1h 11m
8 AM
1h 22m
10 AM
1h 15m
12 PM
1h 14m
3 PM
1h 15m
5 PM
1h 21m
8 PM
1h 7m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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town in Suffolk County, New York, United States

Smithtown, NY

Wikimedia Commons

city in Westchester County, New York, United States

Mount Vernon, NY

Wikimedia Commons

Trip Overview

Spanning 48.7 miles across the Northeast, this trip from Smithtown to Mount Vernon, New York, is an efficient journey that typically takes about 1 hour and 12 minutes. Because of the manageable duration, you can easily complete this drive in a single day without needing an overnight stay. Expect to spend approximately $8 on fuel for the trip, making it a budget-friendly option for your travel plans. You will navigate primarily via local roads like West Main Street, Jericho Turnpike, and SM South rather than relying on major interstates. It is a straightforward route that serves as a practical connection between these two New York locales.

Main Roads

Road Distance Duration
Long Island Expressway 24.8 mi 33m
Jericho Turnpike 4 mi 6m
Cross Island Parkway 3.1 mi 4m
Throgs Neck Expressway 2.5 mi 3m
Hutchinson River Parkway 1.9 mi 2m
Sunken Meadow State Parkway 1.9 mi 2m
Throgs Neck Bridge 1.8 mi 3m
South Fulton Avenue 1.3 mi 2m
Longest stretch: Long Island Expressway — 24.8 mi, about 33m

Turn-by-Turn Driving Directions

Step-by-step road directions between Smithtown, NY and Mount Vernon, NY.

1

Start on NY 25; NY 25A

0.6 mi · 51 sec · West Main Street
2

Keep slight left at fork onto NY 25; NY 25A

179 ft · 5 sec · West Main Street
3

Continue on NY 25

4.0 mi · 6 min · Jericho Turnpike
4

Take the ramp

0.2 mi · 27 sec
Toward SM South: Bay Shore
5

Merge onto SM

1.9 mi · 2 min · Sunken Meadow State Parkway
6

Continue on SA

0.8 mi · 49 sec · Sagtikos State Parkway
7

Take the exit

0.1 mi · 16 sec
Exit S1W Toward I 495 West: New York Use the slight right lane.
8

Keep slight left at fork

0.2 mi · 23 sec
Toward I 495 West: New York Use the straight / slight right lanes.
9

Turn straight onto LIE North Service Road

0.4 mi · 33 sec · LIE North Service Road
10

Turn straight onto North Service Road

0.1 mi · 14 sec · North Service Road
11

Take the ramp

0.2 mi · 21 sec
Toward I 495 West: New York
12

Merge onto I 495

25 mi · 33 min · Long Island Expressway
Use the straight / slight right lanes.
13

Take the exit

0.2 mi · 27 sec
Exit 31N-S Toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport Use the straight / slight right lanes.
14

Keep slight right at fork

0.3 mi · 38 sec
Exit 31N Toward Cross Island Parkway North, Whitestone Bridge Use the slight left / slight right lanes.
15

Merge onto CI

3.1 mi · 4 min · Cross Island Parkway
Use the straight / slight right lanes.
16

Take the exit

0.6 mi · 1 min
Exit 33 Toward I 295 North: Throgs Neck Bridge, Bronx, New England Use the straight / slight right lanes.
17

Merge onto I 295

1.8 mi · 3 min · Throgs Neck Bridge
18

Continue on I 295

0.7 mi · 1 min · Throgs Neck Expressway
Use the straight / slight right lanes.
19

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.
20

Merge onto I 95

1.0 mi · 1 min · Bruckner Expressway
21

Continue on I 95

0.2 mi · 18 sec · New England Thruway
22

Take the exit

430 ft · 14 sec
Exit 9 Toward Hutchinson Parkway North Use the slight right lane.
23

Keep slight left at fork

0.2 mi · 31 sec
Toward Hutchinson River Parkway North Use the straight / right lanes.
24

Merge onto HR

1.9 mi · 2 min · Hutchinson River Parkway
Use the straight / slight right lanes.
25

Take the exit

0.2 mi · 21 sec
Toward US 1: Pelham Manor
26

Keep slight left at fork

264 ft · 14 sec
Toward US 1 South: Shopping Center, Saint Paul's Church Use the left / right lanes.
27

Turn left onto US 1

0.2 mi · 29 sec · Boston Post Road
Use the left lane.
28

Turn right onto Pelham Parkway

0.3 mi · 35 sec · Pelham Parkway
29

Continue on South Fulton Avenue

1.3 mi · 2 min · South Fulton Avenue
30

Turn left onto East 1st Street

0.4 mi · 54 sec · East 1st Street
31

Turn right onto Gramatan Avenue

361 ft · 13 sec · Gramatan Avenue
32

Turn right onto East Prospect Avenue

56 ft · 1 sec · East Prospect Avenue
33

Arrive at destination

East Prospect Avenue

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Downtown Hillside, NY, NY

Mid-route town

Meal stop

Hillside, NY

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

Melville, NY

Fuel and coffee

A short stop after about 10 miles helps settle the day before fatigue starts building.

North Hills, NY

Meal break

The midpoint is around 23.8 miles from Smithtown, 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.

Heads-up: tricky spots

5 of 24

5 decision points cluster between mile 7.6 and 45.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

8
7.6 mi into trip | ~10m in

Keep slight left at fork toward I 495 West: New York

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Toward I 495 West: New York
8
33.3 mi into trip | ~46m in

Take the exit toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport

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 31N-S Toward Cross Island Parkway, Whitestone Bridge,...
10
33.5 mi into trip | ~46m in

Keep slight right at fork toward Cross Island Parkway North, Whitestone Bridge

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left / slight right lanes. Exit 31N Toward Cross Island Parkway North, Whitestone B...
8
36.9 mi into trip | ~51m in

Take the exit toward I 295 North: Throgs Neck Bridge, Bronx, New England

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 33 Toward I 295 North: Throgs Neck Bridge, Bronx,...
9
45.3 mi into trip | ~1h 5m 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'...

Fuel & Cost

Regular Gas

$7.85 one way

$15.70 round trip

$4.18/gal 25.4 MPG avg 17 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.52 $8.49 $16.98
premium $4.92 $9.25 $18.49
diesel $5.61 $10.53 $21.06

Estimated Tolls: $6.83

Throgs Neck Bridge $6.55
Jericho Turnpike (4 mi) $0.28

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: 16.7 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 14.3 0 $5.01 $2.29
Efficient EV 11.9 0 $4.17 $1.91
EV Truck/SUV 19.1 0 $6.68 $3.05

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.

Forecast as of Apr 14, 2026

Origin

Smithtown, NY

Late night in Smithtown on Sunday

Local time

12:20 AM

EDT

Current temp

80°F

Mostly Sunny

S 5 to 10 mph 9% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 14 at 12:38PM EDT by NWS Albany NY

Flood Warning

Flood Warning issued April 14 at 12:03PM EDT by NWS Binghamton NY

Destination

Mount Vernon, NY

Late night in Mount Vernon on Sunday

Local time

12:20 AM

EDT

Current temp

52°F

Unavailable

Live forecast

42°F

Hillside, NY

24 mi in

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

28 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 10m 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?

Prepare for a turn-heavy local drive that demands your full attention behind the wheel. Unlike a monotonous interstate cruise, this route features zero highway miles, meaning you will be navigating surface streets for the entire 48.7-mile duration. The road’s personality is defined by its constant transitions through local traffic rather than long, uninterrupted stretches of open pavement. Because you are staying off the highways, the drive offers a more grounded, hands-on experience that requires frequent navigation adjustments. Expect a steady, active pace that keeps you engaged throughout the 1 hour and 12 minutes of travel time.

84% highway — fuel and pacing are the main things to plan.
33 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 24.8 mi on Long Island Expressway.

How Hard Is This Drive?

10/10

This is a straightforward highway drive that stays mostly on Long Island Expressway and Jericho Turnpike. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 7.6 miles in.

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 47.7 miles you will encounter 24 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 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.5 miles: Highway fork - watch signs carefully. 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.

Between Smithtown, NY and Mount Vernon, NY, road signs point toward Sm South: Bay Shore, Kennedy Airport, Cross Island Parkway North, Bronx, New England and Hutchinson Parkway North - among others.

Sm South: Bay Shore

4.6 mi in | ~7m

Kennedy Airport

33.3 mi in | ~46m

Cross Island Parkway North

33.5 mi in | ~46m

Bronx

36.9 mi in | ~51m

New England

36.9 mi in | ~51m

Hutchinson Parkway North

42.9 mi in | ~1h 1m

Hutchinson River Parkway North

43 mi in | ~1h 1m

About the Cities

Starting in Smithtown, NY

Full guide →

Smithtown is a town of 117,000 people (2016) in Suffolk County, on Long Island, in New York. Smithtown is comprised of the villages and hamlets of Commack (in part, with the Town of Huntington), Fort Salonga (in part, with the Town of Huntington), Hauppauge (in part, with the Town of Islip), Head of the Harbor, Kings Park, Lake Ronkonkoma (in part with the Town of Brookhaven and Town of Islip), Nesconset, Nissequogue, Smithtown, St. James, & Village of the Branch.

Arriving in Mount Vernon, NY

Full guide →

Founded 1892

Mount Vernon is a city in Westchester County in New York.

Top landmarks

  • • Saint Paul's Church National Historic Site — national Historic Site of the United States
  • • Trinity Episcopal Church Complex — church building in Mount Vernon, New York, United States

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 1h 10m. Total distance: 47.7 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 10m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (84%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 24.8 miles on Long Island Expressway. The full list of main roads is in the Roads section above.

Expect about $6.83 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.

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 Mount Vernon, 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 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 33.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Yes — Hamilton Grange National Memorial, General Grant National Memorial and African Burial Ground National Monument (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 Mount Vernon, 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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Return Trip

Mount Vernon, NY to Smithtown, NY

Plan the drive back the other way.

48.3 mi 1h 11m

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