Skip to main content

Trip from Fort Montgomery, NY to Brookhaven, NY

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

Drive Time

2h 18m

Distance

102.3 mi

165 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$17

one way

EV Charging

Unknown

Best Time to Leave

Save up to 28 min
4 AM
2h 9m ★
6 AM
2h 18m
8 AM
2h 37m
10 AM
2h 25m
12 PM
2h 23m
3 PM
2h 26m
5 PM
2h 36m
8 PM
2h 12m

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

Downtown Fort Montgomery, NY, NY

Fort Montgomery, NY

Brendon Spring

Trip Overview

Fort Montgomery to Brookhaven is 102.3 miles and takes about 2 hours 18 minutes via the Long Island Expressway and Palisades Interstate Parkway, with a fuel budget near $17 and enough daylight to finish in a day. This route stays within New York, connecting the Northeast region. It's a predominantly highway-focused drive, making it a straightforward trip if you're looking to get from point A to point B efficiently. Given its relatively short duration and highway nature, this is a solid option for a same-day journey.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Midpoint

51.1 miles from Fort Montgomery, NY

A natural place for your longest stop of the day , about 1h 7m into the drive .

Main Roads

Road Distance Duration
Long Island Expressway 43.5 mi 59m
Palisades Interstate Parkway 37.4 mi 47m
Cross Bronx Expressway 6.6 mi 8m
Horseblock Road 4.1 mi 6m
Clearview Expressway 3.2 mi 3m
Throgs Neck Bridge 2 mi 3m
Montauk Highway 0.9 mi 1m
Trans-Manhattan Expressway 0.7 mi 1m
Longest stretch: Long Island Expressway — 43.5 mi, about 59m

Turn-by-Turn Driving Directions

Step-by-step road directions between Fort Montgomery, NY and Brookhaven, NY.

1

Start on US 9W

0.7 mi · 59 sec · United States Route 9W
2

Take the exit

0.2 mi · 18 sec
3

Merge onto US 6

2.3 mi · 3 min · Palisades Interstate Parkway
4

Keep slight left at fork onto Palisades Interstate Parkway

35 mi · 44 min · Palisades Interstate Parkway
Use the straight / slight right lanes.
5

Merge onto I 95 EXPR; US 1 EXPR; US 9 EXPR

0.5 mi · 52 sec · I 95 EXPR; US 1 EXPR; US 9 EXPR
6

Continue on I 95; US 1; US 9

0.6 mi · 1 min · George Washington Bridge (upper level)
Use the straight / slight right lanes.
7

Continue on I 95; US 1

0.7 mi · 1 min · Trans-Manhattan Expressway
8

Continue on I 95; US 1

4.7 mi · 6 min · Cross Bronx Expressway
Use the straight / slight right lanes.
9

Keep slight right at fork onto I 295

2.0 mi · 2 min · Cross Bronx Expressway
Exit 6B Toward I 295 South: Throgs Neck Bridge Use the straight / slight left lanes.
10

Merge onto I 295

0.6 mi · 58 sec · Throgs Neck Expressway
11

Continue on I 295

2.0 mi · 3 min · Throgs Neck Bridge
Use the straight / slight right lanes.
12

Continue on I 295

3.2 mi · 3 min · Clearview Expressway
Use the straight / slight right lanes.
13

Take the exit

0.2 mi · 27 sec
Exit 4E-W Toward I 495: Manhattan, Eastern Long Island Use the straight / slight right lanes.
14

Keep slight left at fork

0.3 mi · 38 sec
Exit 4E Toward I 495 East: Long Island Expressway, Eastern Long Island
15

Merge onto I 495

43 mi · 59 min · Long Island Expressway
Use the straight / slight right lanes.
16

Take the exit

0.2 mi · 27 sec
Exit 65 Toward CR 16: Horse Block Road, Centereach, Shirley Use the straight / slight right lanes.
17

Turn straight onto Express Drive South

0.2 mi · 21 sec · Express Drive South
Toward I 495, CR 101: Yaphank, Riverhead
18

Turn slight right onto CR 16

4.1 mi · 6 min · Horseblock Road
Use the right lane.
19

At end of road, turn right onto CR 80

0.9 mi · 1 min · Montauk Highway
Use the right lane.
20

Turn left onto CR 36

0.4 mi · 50 sec · South Country Road
Use the left lane.
21

Arrive at destination

CR 36

Trip Plan

Since this 2-hour-and-18-minute drive is easily manageable within a single day, you have flexibility with your departure time. Leaving mid-morning can help you avoid the worst of rush hour traffic on the Cross Bronx Expressway. Keep an eye on your fuel, as the $17 estimated cost suggests it's a moderate expense for this trip. The longest stretch without a major road change is 43.5 miles on the Long Island Expressway, so plan your fuel and rest stops accordingly before you get too far into that segment. Consider a brief stop after exiting the Palisades Interstate Parkway to stretch before the final push on Long Island.

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 51.1 miles from Fort Montgomery, NY, or about 1h 7m into the drive.
The longest continuous stretch on this route runs about 43.5 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 23 miles or 29m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 51.1 miles or 1h 7m 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 51m

Traffic, exits, and arrival timing usually matter more near Brookhaven, NY than in the middle of the route.

Before You Leave

+

Open the route before leaving Fort Montgomery, 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 Fort Montgomery, NY

This is one driving day of about 102.3 miles and 2h 18m.

Your first comfortable stop window is around 23 miles from Fort Montgomery, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Long Island Expressway for about 43.5 miles.

Where to Stop

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

city in Westchester County, New York, United States

Mid-route town

Meal stop

Yonkers, NY

51 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

Ossining, NY

Fuel and coffee

A short stop after about 23 miles helps settle the day before fatigue starts building.

Hillside, NY

Meal break

The midpoint is around 51.1 miles from Fort Montgomery, 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 14

5 decision points cluster between mile 3.2 and 96.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
3.2 mi into trip | ~4m in | Palisades Interstate Parkway

Keep slight left at fork onto Palisades Interstate Parkway

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes.
8
44.9 mi into trip | ~58m in | I 295 / Cross Bronx Expressway

Keep slight right at fork onto I 295 / Cross Bronx Expressway toward I 295 South: Throgs Neck Bridge

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight left lanes. Exit 6B Toward I 295 South: Throgs Neck Bridge
8
52.6 mi into trip | ~1h 8m in

Take the exit toward I 495: Manhattan, Eastern Long Island

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 4E-W Toward I 495: Manhattan, Eastern Long Island
8
52.8 mi into trip | ~1h 9m in

Keep slight left at fork toward I 495 East: Long Island Expressway, Eastern Long Island

Highway fork - watch signs carefully. Multiple destination signs - pick the right one

Exit 4E Toward I 495 East: Long Island Expressway, East...
8
96.5 mi into trip | ~2h 8m in

Take the exit toward CR 16: Horse Block Road, Centereach, Shirley

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 65 Toward CR 16: Horse Block Road, Centereach, Shi...

Fuel & Cost

Regular Gas

$16.84 one way

$33.68 round trip

$4.18/gal 25.4 MPG avg 36 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.52 $18.21 $36.42
premium $4.92 $19.83 $39.66
diesel $5.61 $22.59 $45.17

Estimated Tolls: $22.55

George Washington Bridge $16.00
Throgs Neck Bridge $6.55

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

$17

Tolls

$23

Meals

$25–$50

Total

$64–$89

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 35.8 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $11 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 30.7 0 $10.74 $4.91
Efficient EV 25.6 0 $8.95 $4.09
EV Truck/SUV 40.9 0 $14.32 $6.55

Gas CO2

36 kg

EV CO2

12 kg (67% 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 18, 2026

Origin

Fort Montgomery, NY

Morning in Fort Montgomery on Sunday

Local time

10:18 AM

EDT

Current temp

48°F

Unavailable

Live forecast

Destination

Brookhaven, NY

Morning in Brookhaven on Sunday

Local time

10:18 AM

EDT

Current temp

48°F

Scattered Rain Showers then Partly Cloudy

NE 2 to 6 mph 35% chance Live 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

Very similar conditions

Both ends of the route are sitting at about the same temperature right now.

Road read

2h 18m 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.

Hamilton Grange National Memorial

Hamilton Grange National Memorial

National Memorial

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...

2 mi from route ~6 min detour Free near mile 38.8
View on nps.gov
General Grant National Memorial

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...

3 mi from route ~7 min detour Free near mile 38.8
View on nps.gov
Fire Island National Seashore

Fire Island National Seashore

National Seashore

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...

7 mi from route ~18 min detour Free near mile 102.3
View on nps.gov
Stonewall National Monument

Stonewall National Monument

National Monument

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...

9 mi from route ~21 min detour Free near mile 38.8
View on nps.gov
African Burial Ground National Monument

African Burial Ground National Monument

National Monument

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...

10 mi from route ~25 min detour Free near mile 38.8
View on nps.gov
Federal Hall National Memorial

Federal Hall National Memorial

National Memorial

Here at Federal Hall, George Washington took the oath of office as the first President of the United States, marking the beginning of the American constitutional republic. This historic site served as...

10 mi from route ~26 min detour Free near mile 38.8
View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

What kind of drive is this?

Expect a highway-focused drive for 91% of this 102.3-mile trip. You'll experience long stretches of consistent speed, including a 43.5-mile segment on the Long Island Expressway. The Palisades Interstate Parkway and Cross Bronx Expressway also contribute to the high-speed character of this route. While primarily interstate, be prepared for the typical urban and suburban traffic flow as you navigate through these busy corridors. The road's personality is geared towards covering distance with minimal interruption.

91% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 43.5 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 Palisades Interstate Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.2 miles in near Palisades Interstate Parkway.

Driving Effort 10/10

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 14 significant decision points across 102.3 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 3.2 miles (Palisades Interstate Parkway): Highway fork - watch signs carefully. Lane positioning matters here; at 44.9 miles (I 295 / Cross Bronx Expressway): Highway fork - watch signs carefully. Lane positioning matters here; at 52.6 miles: Exit ramp - move to the correct lane early. 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 Fort Montgomery, NY and Brookhaven, NY, road signs point toward Eastern Long Island, Centereach, Shirley, Cr 101: Yaphank and Riverhead.

Eastern Long Island

52.6 mi in | ~1h 8m

Centereach

96.5 mi in | ~2h 8m

Shirley

96.5 mi in | ~2h 8m

Cr 101: Yaphank

96.8 mi in | ~2h 9m | via Express Drive South

Riverhead

96.8 mi in | ~2h 9m | via Express Drive South

About the Cities

Starting in Fort Montgomery, NY

Full guide →

Arriving in Brookhaven, NY

Full guide →

Founded 1655

Brookhaven is the largest town in Suffolk County, part of Long Island, New York. With 485,000 residents (2020). It includes a patchwork of villages and other communities, and is the only town on the island to touch both the Long Island Sound and Atlantic Ocean. The villages of Belle Terre, Bellport, Lake Grove, Mastic Beach, Old Field, Patchogue, Poquott, Port Jefferson, and Shoreham are semi-autonomous, and provide their own services in addition to those provided by the town. Other prominent communities include Mount Sinai, Stony Brook, and Fire Island, a long and car-free resort island off the south coast of the town.

Top landmarks

  • Wardenclyffe Tower — early experimental wireless transmission station designed and built by Nikola Te...
  • West Meadow Beach Historic District — historic district in the United States
  • Stony Brook Grist Mill — watermill

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 2h 18m. Total distance: 102.3 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

2h 18m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (91%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 43.5 miles on Long Island Expressway. The full list of main roads is in the Roads section above.

Expect about $22.55 in tolls one way, starting with George Washington 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 Brookhaven, 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.

The main spots that need attention: at 3.2 miles (Palisades Interstate Parkway): Highway fork - watch signs carefully. Lane positioning matters here; at 44.9 miles (I 295 / Cross Bronx Expressway): Highway fork - watch signs carefully. Lane positioning matters here; at 52.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Yes — Hamilton Grange National Memorial, General Grant 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 Brookhaven, 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.

Was this helpful?

Thanks for your feedback!

Your tip has been submitted. Thanks!

/500

Explore More

Return Trip

Brookhaven, NY to Fort Montgomery, NY

Plan the drive back the other way.

100.7 mi 2h 16m

Explore more options from Fort Montgomery, NY or browse trips ending in Brookhaven, NY.

Looking for more statewide routes? Browse NY road trips.