How far is Hempstead, NY from Sag Harbor, NY?
The driving distance from Hempstead, NY to Sag Harbor, NY is about 78.7 miles (126.6 km), with a travel time of about 01h 55m by car.
- The straight-line flight distance is about 72.2 miles (116.2 km).
- For a round trip, plan for roughly 03h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 55m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
This town in Suffolk County, New York, is the most populous in the state.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Hempstead and Sag Harbor.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hempstead and Sag Harbor.
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1
Start on Peninsula Boulevard
566 ft · 12 sec · Peninsula Boulevard
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2
Turn slight right onto Front Street
860 ft · 15 sec · Front Street
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3
Turn slight right
34 m · 4 sec
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4
Turn straight onto William Street
2138 ft · 1 min · William Street
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5
At the end of the road, turn left onto Jerusalem Avenue
2 mi · 3 min · Jerusalem Avenue
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6
Keep slight right to continue on Jerusalem Avenue
1 km · 1 min · Jerusalem Avenue
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7
Turn slight right onto Merrick Avenue North
682 ft · 16 sec · Merrick Avenue North
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8
Take the ramp slight right toward SO East: East Islip
676 ft · 17 sec
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9
Merge slight left onto Southern State Parkway
15.2 mi · 18 min · Southern State Parkway
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10
Keep slight left to continue on Southern State Parkway
1072 ft · 16 sec · Southern State Parkway
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11
Take the exit slight right toward Bay Shore Road South, Bay Shore
1044 ft · 32 sec
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12
Turn straight onto Bay Shore Road
2667 ft · 1 min · Bay Shore Road
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13
Continue on Howells Road
1845 ft · 44 sec · Howells Road
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14
Turn straight onto Sunrise Highway
104 m · 7 sec · Sunrise Highway
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15
Keep slight left to continue on Sunrise Highway
1.2 km · 1 min · Sunrise Highway
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16
Take the ramp slight left toward NY 27 East: Montauk
694 ft · 17 sec
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17
Merge slight left onto Sunrise Highway
43.1 mi · 56 min · Sunrise Highway
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18
Continue on County Road 39
5.5 mi · 11 min · County Road 39
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19
Turn left onto Montauk Highway
2.2 mi · 4 min · Montauk Highway
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20
Turn left onto Scuttle Hole Road
2.3 mi · 4 min · Scuttle Hole Road
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21
Enter the roundabout and take exit 2 toward Scuttle Hole Road
28 m · 2 sec · Scuttle Hole Road
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22
Exit the roundabout onto Scuttle Hole Road
2 mi · 4 min · Scuttle Hole Road
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23
At the end of the road, turn left onto Bridgehampton–Sag Harbor Turnpike
1.5 mi · 3 min · Bridgehampton–Sag Harbor Turnpike
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24
Continue on Main Street
1.3 km · 3 min · Main Street
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25
Turn right onto Union Street
1141 ft · 55 sec · Union Street
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26
Turn right onto Division Street
5 m · 1 sec · Division Street
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27
Turn slight right
45 m · 5 sec
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28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Hempstead and Sag Harbor.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Sunrise Highway
Merge slight left onto Sunrise Highway
43.1 mi · 00h 56m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Rain Showers Likely leaving Hempstead and Rain Showers Likely near Sag Harbor.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hempstead to Sag Harbor?
The road trip is about 78.7 miles (126.6 km) and usually takes 01h 55m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Brookhaven is a useful midpoint, sitting about 39.3 miles from Hempstead and 39.4 miles from Sag Harbor.
How much longer is the road route than the straight-line distance?
The direct path is about 72.2 miles (116.2 km), while the road route adds roughly 6.5 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.10 one way or $22.21 round trip. Estimated CO2 is about 24.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Hempstead and Rain Showers Likely near Sag Harbor.
Stop Ideas Near Brookhaven
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 Brookhaven.
Bridgeport
Union Station
Stamford Transportation Center
Old Saybrook station
Flight Path Map
This map shows the direct air route between Hempstead and Sag Harbor. Straight-line distance: 72.18 mi (116.16 km).
#1 Hempstead
Located in Nassau County, New York, this hamlet and village is a major commercial and transportation hub.
| Population | 764,055 |
| Coordinates | 40.7062100, -73.6187400 |
| Altitude | 17 |
| Country | United States |
#2 Sag Harbor
City in Suffolk County, New York, United States of America
| Population | 2,292 |
| Coordinates | 40.9978800, -72.2925800 |
| Altitude | 8 |
| Country | United States |
End: Sag Harbor (-72.29258, 40.99788)
Estimated Travel Time
Distance: 127 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 37m |
| 40 mph (64.37 km/h) | 01h 57m |
| 50 mph (80.47 km/h) | 01h 34m |
| 60 mph (96.56 km/h) | 01h 18m |
| 70 mph (112.65 km/h) | 01h 07m |
| 80 mph (129 km/h) | 00h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $11.10 | $22.21 |
| Mid-grade | $4.48 | $12.41 | $24.82 |
| Premium | $4.86 | $13.46 | $26.93 |
| Diesel | $4.69 | $13.00 | $26.00 |
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.