Origin
Brentwood, NY
Morning in Brentwood on Tuesday
Local time
7:09 AM
EDT
Current temp
44°F
Unavailable
Live forecast
Trip from Brentwood, NY to Brookhaven, NY
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
31m
Distance
21.1 mi
34 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 29m
★
6 AM
0h 31m
8 AM
0h 37m
10 AM
0h 33m
12 PM
0h 33m
3 PM
0h 33m
5 PM
0h 36m
8 PM
0h 30m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Brentwood, NY
Wikimedia Commons
Trip Overview
If you are planning a quick trip from Brentwood to Brookhaven, you are looking at a manageable 21.1-mile drive across Long Island. Expect to spend about 31 minutes behind the wheel, making this a perfect candidate for a single-day excursion. You will primarily navigate via Joshuas Path, Express Drive South, and I-495 East to reach your destination. With a modest fuel budget of approximately $3, this is an incredibly economical route to traverse within the Northeast region. Since the entire trip takes less than an hour, there is no need to worry about overnight accommodations or heavy logistical planning. It is a straightforward, practical commute that gets you from point A to point B without any unnecessary complexity.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Long Island Expressway | 12.1 mi | 16m |
| Horseblock Road | 4.1 mi | 6m |
| Joshuas Path | 1.5 mi | 2m |
| Suffolk Avenue | 1.4 mi | 2m |
| Montauk Highway | 0.9 mi | 1m |
| South Country Road | 0.4 mi | <1m |
| Express Drive South | 0.3 mi | <1m |
Longest stretch:
Long Island Expressway
— 12.1 mi, about 16m
Turn-by-Turn Driving Directions
Step-by-step road directions between Brentwood, NY and Brookhaven, NY.
1
Start on CR 100
1.4 mi
·
2 min
·
Suffolk Avenue
2
Turn left onto NY 111
1.5 mi
·
2 min
·
Joshuas Path
3
Turn right onto Express Drive South
459 ft
·
9 sec
·
Express Drive South
4
Take the ramp
0.1 mi
·
18 sec
Toward I 495 East: Riverhead
5
Merge onto I 495
12 mi
·
16 min
·
Long Island Expressway
Use the straight / slight right lanes.
6
Take the exit
0.2 mi
·
27 sec
Exit 65
Toward CR 16: Horse Block Road, Centereach, Shirley
Use the straight / slight right lanes.
7
Turn straight onto Express Drive South
0.2 mi
·
21 sec
·
Express Drive South
Toward I 495, CR 101: Yaphank, Riverhead
8
Turn slight right onto CR 16
4.1 mi
·
6 min
·
Horseblock Road
Use the right lane.
9
At end of road, turn right onto CR 80
0.9 mi
·
1 min
·
Montauk Highway
Use the right lane.
10
Turn left onto CR 36
0.4 mi
·
50 sec
·
South Country Road
Use the left lane.
11
Arrive at destination
CR 36
Heads-up: tricky spots
5 of 95 decision points cluster between mile 2.9 and 20.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
2.9 mi into trip
|
~4m in
|
Express Drive South
Turn right onto Express Drive South
Navigation decision point
5
3.1 mi into trip
|
~5m in
|
I 495 / Long Island Expressway
Merge onto I 495 / Long Island Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
15.3 mi into trip
|
~21m 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...
6
19.8 mi into trip
|
~28m in
|
CR 80 / Montauk Highway
At end of road, turn right onto CR 80 / Montauk Highway
Lane positioning matters here
Use the right lane.
5
20.7 mi into trip
|
~30m in
|
CR 36 / South Country Road
Turn left onto CR 36 / South Country Road
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$3.47 one way
$6.95 round trip
$4.18/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $3.76 | $7.51 |
| premium | $4.92 | $4.09 | $8.18 |
| diesel | $5.61 | $4.66 | $9.32 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.4 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 | 6.3 | 0 | $2.22 | $1.01 |
| Efficient EV | 5.3 | 0 | $1.85 | $0.84 |
| EV Truck/SUV | 8.4 | 0 | $2.95 | $1.35 |
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
Brookhaven, NY
Morning in Brookhaven on Tuesday
Local time
7:09 AM
EDT
Current temp
43°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
1 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
31m 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.
What kind of drive is this?
Expect a turn-heavy local drive rather than a high-speed interstate cruise. While you will utilize I-495 East, the route maintains a 0% highway share, meaning you should be prepared for frequent maneuvering through local road networks. The path requires your full attention as you transition between Joshuas Path and Express Drive South. Because this is a shorter trip, you won't encounter long, monotonous highway stretches, but you will experience a more tactical driving environment. Staying alert for turns is essential to keeping your travel time close to the 31-minute estimate.
58% highway, the rest on surface roads — varied driving throughout.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 12.1 mi on Long Island Expressway.
How Hard Is This Drive?
5/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 2.9 miles in near Express Drive South.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 21.1 miles you will encounter 9 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 2.9 miles (Express Drive South): Navigation decision point; at 3.1 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here; at 15.3 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.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Brentwood, NY and Brookhaven, NY, road signs point toward Centereach, Shirley, Cr 101: Yaphank and Riverhead.
Centereach
15.3 mi in
|
~21m
Shirley
15.3 mi in
|
~21m
Cr 101: Yaphank
15.5 mi in
|
~22m
|
via Express Drive South
Riverhead
15.5 mi in
|
~22m
|
via Express Drive South
About the Cities
Starting in Brentwood, 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 31m. Total distance: 21.1 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
31m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (58%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 12.1 miles on Long Island Expressway. The full list of main roads is in the Roads section above.
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 2.9 miles (Express Drive South): Navigation decision point; at 3.1 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here; at 15.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
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, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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