How far is Deerfield, NY from Brookhaven, NY?
The driving distance from Deerfield, NY to Brookhaven, NY is about 34.3 miles (55.2 km), with a travel time of about 00h 43m by car.
- The straight-line flight distance is about 30.8 miles (49.5 km).
- For a round trip, plan for roughly 01h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 43m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census-designated place in Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Partly Sunny
Driving Route Map
The map below follows the saved road route between Deerfield and Brookhaven.
Turn-by-Turn Driving Directions
Step-by-step road directions between Deerfield and Brookhaven.
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1
Start on Deerfield Road
1 mi · 2 min · Deerfield Road
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2
Turn right onto Head of Pond Road
1.3 km · 2 min · Head of Pond Road
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3
Turn right onto Lower Seven Ponds Road
2622 ft · 1 min · Lower Seven Ponds Road
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4
Continue on Seven Ponds Road
1.1 km · 2 min · Seven Ponds Road
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5
Continue on David Whites Lane
1069 ft · 34 sec · David Whites Lane
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6
Turn right onto County Road 39A
4.9 mi · 10 min · County Road 39A
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7
Continue on Sunrise Highway
24.2 mi · 31 min · Sunrise Highway
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8
Take the exit slight right toward CR 16 West: Yaphank, Horseblock Road
652 ft · 23 sec
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9
Turn left onto Victory Avenue
821 ft · 19 sec · Victory Avenue
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10
At the end of the road, turn left onto Horseblock Road
2089 ft · 42 sec · Horseblock Road
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11
At the end of the road, turn right onto Montauk Highway
1.4 km · 2 min · Montauk Highway
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12
Turn left onto South Country Road
2057 ft · 50 sec · South Country Road
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13
Arrive at your destination
0 m · 1 sec · South Country Road
Car Route Details
A richer read on the saved driving route between Deerfield and Brookhaven.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Sunrise Highway
Continue on Sunrise Highway
24.2 mi · 00h 31m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Cloudy leaving Deerfield and Partly Sunny near Brookhaven.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Deerfield to Brookhaven?
The road trip is about 34.3 miles (55.2 km) and usually takes 00h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Flanders is a useful midpoint, sitting about 17.1 miles from Deerfield and 17.2 miles from Brookhaven.
How much longer is the road route than the straight-line distance?
The direct path is about 30.8 miles (49.5 km), while the road route adds roughly 3.5 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.85 one way or $9.70 round trip. Estimated CO2 is about 10.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Deerfield and Partly Sunny near Brookhaven.
Stop Ideas Near Flanders
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Flanders.
Old Saybrook station
Union Station
Bridgeport
Wallingford station
Flight Path Map
This map shows the direct air route between Deerfield and Brookhaven. Straight-line distance: 30.75 mi (49.49 km).
#1 Deerfield
Town in New York, United States
| Population | 4,050 |
| Coordinates | 40.9359300, -72.3645300 |
| Altitude | 21 |
| Country | United States |
#2 Brookhaven
This town in Suffolk County, New York, is the most populous in the state.
| Population | 479,883 |
| Coordinates | 40.7792700, -72.9153800 |
| Altitude | 3 |
| Country | United States |
End: South Country Road (-72.915343, 40.779251)
Estimated Travel Time
Distance: 55 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 08m |
| 40 mph (64.37 km/h) | 00h 51m |
| 50 mph (80.47 km/h) | 00h 41m |
| 60 mph (96.56 km/h) | 00h 34m |
| 70 mph (112.65 km/h) | 00h 29m |
| 80 mph (129 km/h) | 00h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $4.85 | $9.70 |
| Mid-grade | $4.48 | $5.42 | $10.84 |
| Premium | $4.86 | $5.88 | $11.76 |
| Diesel | $4.69 | $5.68 | $11.36 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in New York · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.