How far is Chatham, NY from Islip, NY?

The driving distance from Chatham, NY to Islip, NY is about 168.1 miles (270.5 km), with a travel time of about 03h 02m by car.

  • The straight-line flight distance is about 114.6 miles (184.5 km).
  • For a round trip, plan for roughly 06h 04m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
168.09 mi
03h 02m
Flight
114.66 mi
184.53 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Chatham.

Flight Distance

Direct air line
114.66 mi
Kilometers
184.53 km
Flight Time
00h 13m

Driving Distance

Road route
168.09 mi
Kilometers
270.52 km
Drive Time
03h 02m

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 03h 02m.

Arrival Snapshot
Arrive in Islip
Thu, Apr 16, 12:24 AM EDT
Return by in Chatham
Thu, Apr 16, 3:26 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Chatham
2026-04-15T21:22
Arrive Islip
Thu, Apr 16, 12:24 AM EDT
Route Timing
03h 02m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
9:02 AM to 11:02 AM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
10:56 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Chatham
9:00 PM EDT
Early departure recommended

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.

Mid-route stop
Brewster
NY

Village in New York

From Chatham
83.6 mi
01h 31m
To Islip
84.6 mi
01h 31m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
81°F
Wednesday

Chance Showers And Thunderstorms

Starts
Wed, Apr 15 6:00 AM EDT
Wind
1 to 6 mph S
Destination
76°F
Today

Mostly Sunny then Slight Chance Rain Showers

Starts
Wed, Apr 15 7:00 AM EDT
Wind
3 to 10 mph SW

Driving Route Map

The map below follows the saved road route between Chatham and Islip.

Turn-by-Turn Driving Directions

Step-by-step road directions between Chatham and Islip.

  1. 1

    Start on Austerlitz Street

    10 m · 2 sec · Austerlitz Street

  2. 2

    Enter the roundabout and take exit 3 toward Main Street

    34 m · 2 sec · Main Street

  3. 3

    Exit the roundabout onto Main Street

    674 ft · 19 sec · Main Street

  4. 4

    Continue on Hudson Avenue

    2378 ft · 1 min · Hudson Avenue

  5. 5

    Turn left onto Coleman Street

    1532 ft · 31 sec · Coleman Street

  6. 6

    Continue on State Highway 203

    1 mi · 2 min · State Highway 203

  7. 7

    Take the ramp slight right

    1829 ft · 1 min

  8. 8

    Merge slight left onto Taconic State Parkway

    62.3 mi · 1 hr 25 min · Taconic State Parkway

  9. 9

    Take the exit slight right toward I 84 East: Danbury

    1395 ft · 48 sec

  10. 10

    Merge slight left

    15.5 mi · 18 min

  11. 11

    Take the exit slight right toward I 684 South: White Plains

    3060 ft · 1 min

  12. 12

    Merge slight right

    26.8 mi · 31 min

  13. 13

    Keep slight left to continue on Hutchinson River Parkway, New York City

    1.5 mi · 2 min

  14. 14

    Merge slight right onto Hutchinson River Parkway

    7.7 mi · 11 min · Hutchinson River Parkway

  15. 15

    Keep slight right to continue on Hutchinson River Parkway

    5.9 mi · 9 min · Hutchinson River Parkway

  16. 16

    Take the exit slight right toward I 95 South: George Washington Bridge, Stillwell Avenue

    43 m · 5 sec

  17. 17

    Keep slight right to continue on I 95 South: George Washington Bridge

    1265 ft · 47 sec

  18. 18

    Merge slight left onto New England Thruway

    1861 ft · 32 sec · New England Thruway

  19. 19

    Continue on Bruckner Expressway

    1.3 mi · 2 min · Bruckner Expressway

  20. 20

    Keep slight left to continue on Throgs Neck Expressway

    2.2 mi · 3 min · Throgs Neck Expressway

  21. 21

    Continue on Throgs Neck Bridge

    2 mi · 3 min · Throgs Neck Bridge

  22. 22

    Continue on Clearview Expressway

    5 mi · 5 min · Clearview Expressway

  23. 23

    Continue on Hollis Court Boulevard

    1.2 km · 1 min · Hollis Court Boulevard

  24. 24

    At the end of the road, turn left onto Jamaica Avenue

    1117 ft · 35 sec · Jamaica Avenue

  25. 25

    Turn right onto Hempstead Avenue

    1.4 km · 2 min · Hempstead Avenue

  26. 26

    Turn right onto 225th Street

    69 m · 10 sec · 225th Street

  27. 27

    Take the ramp straight toward Cross Island Parkway South, Verrazano Bridge

    1171 ft · 29 sec

  28. 28

    Merge slight left onto Cross Island Parkway

    1.3 mi · 2 min · Cross Island Parkway

  29. 29

    Take the exit slight left toward Southern State Parkway East, Eastern Long Island

    2383 ft · 1 min

  30. 30

    Merge slight left onto Southern State Parkway

    24.5 mi · 31 min · Southern State Parkway

  31. 31

    Keep slight left to continue on Southern State Parkway

    1072 ft · 16 sec · Southern State Parkway

  32. 32

    Take the exit slight right toward Bay Shore Road South, Bay Shore

    1044 ft · 32 sec

  33. 33

    Turn straight onto Bay Shore Road

    2667 ft · 1 min · Bay Shore Road

  34. 34

    Continue on Howells Road

    1845 ft · 44 sec · Howells Road

  35. 35

    Turn straight onto Sunrise Highway

    104 m · 7 sec · Sunrise Highway

  36. 36

    Keep slight right to continue on Howells Road

    3115 ft · 2 min · Howells Road

  37. 37

    Continue on Roosevelt Street

    1248 ft · 25 sec · Roosevelt Street

  38. 38

    Continue on 3rd Avenue

    1 km · 1 min · 3rd Avenue

  39. 39

    At the end of the road, turn left onto East Main Street

    1.1 mi · 2 min · East Main Street

  40. 40

    Continue on Montauk Highway

    1014 ft · 17 sec · Montauk Highway

  41. 41

    Continue on Main Street

    1.2 km · 1 min · Main Street

  42. 42

    Arrive at your destination

    0 m · 1 sec · Main Street

Car Route Details

A richer read on the saved driving route between Chatham and Islip.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
42 steps
9 turns on the saved route
Ramps & Exits
16
7 merges, 9 ramps or exits
Navigation Density
25 / 100 mi
Decision points by distance
Main Roads
Taconic State Parkway
62.3 mi · 37%
I 684 South
27.4 mi · 16%
Southern State Parkway
24.7 mi · 15%
I 84 East
15.7 mi · 9%
Hutchinson River Parkway
15.1 mi · 9%
Clearview Expressway
5.02 mi · 3%
Longest Stretch

Taconic State Parkway

Merge slight left onto Taconic State Parkway

62.3 mi · 01h 25m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
03h 02m
Long day trip
Same-Day Return
06h 04m
Round-trip wheel time
Road vs Air
+53.5 mi
114.6 mi direct line
Halfway Stop
Brewster
01h 31m from Chatham
Leave By
10:56 AM EDT
Early departure recommended
Weather Watch

Chance Showers And Thunderstorms leaving Chatham and Mostly Sunny then Slight Chance Rain Showers near Islip.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Chatham to Islip?

The road trip is about 168.1 miles (270.5 km) and usually takes 03h 02m in normal driving conditions.

Is this a same-day trip or an overnight route?

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Brewster is a useful midpoint, sitting about 83.6 miles from Chatham and 84.6 miles from Islip.

How much longer is the road route than the straight-line distance?

The direct path is about 114.6 miles (184.5 km), while the road route adds roughly 53.5 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:56 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $23.77 one way or $47.55 round trip. Estimated CO2 is about 52.7 kg one way.

What should you check before leaving?

Before you leave, expect Chance Showers And Thunderstorms around Chatham and Mostly Sunny then Slight Chance Rain Showers near Islip.

Stop Ideas Near Brewster

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Brewster and the surrounding midpoint area.
Danbury Fair
Food stop 8.1 mi away

Danbury Fair

Danbury , CT
7 Backus Ave, Danbury, CT 06810, United States
Rating 4.4/5 6,454 reviews Shopping mall,Clothing store,Restaurant
Danbury City Hall
Meeting point 9.7 mi away

Danbury City Hall

Danbury , CT
155 Deer Hill Ave, Danbury, CT 06810
Rating 3.0/5 29 reviews City Hall

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Brewster.

RAIL

Croton–Harmon station

32 mi away
1 Croton Point Avenue
RAIL

Stamford Transportation Center

40 mi away
Washington Blvd and South State St.
RAIL

Bridgeport

43 mi away
525 Water St.
RAIL

Poughkeepsie station

44 mi away
41 Main St.

Flight Path Map

This map shows the direct air route between Chatham and Islip. Straight-line distance: 114.66 mi (184.53 km).

Chatham

#1 Chatham

Town in Columbia County, New York, United States

Population3,819
Coordinates42.3642500, -73.5948400
Altitude141
CountryUnited States
Islip

#2 Islip

This Long Island community is situated on the south shore of Suffolk County, New York, at an elevation of 13 feet.

Population322,328
Coordinates40.7298200, -73.2103900
Altitude4
CountryUnited States
Start: NY 66 (-73.59492, 42.364024)
End: Main Street (-73.210382, 40.729789)

Estimated Travel Time

Distance: 271 km by road

SpeedTime
30 mph (48.3 km/h)05h 36m
40 mph (64.37 km/h)04h 12m
50 mph (80.47 km/h)03h 21m
60 mph (96.56 km/h)02h 48m
70 mph (112.65 km/h)02h 24m
80 mph (129 km/h)02h 05m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
5.93 gal
22.45 L · about $23.77
Round trip
$47.55
11.86 gal · 44.9 L
Estimated CO2
52.7 kg one way
Round trip: 105.4 kg / 232 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.01 $23.77 $47.55
Mid-grade $4.48 $26.57 $53.14
Premium $4.86 $28.83 $57.65
Diesel $4.69 $27.84 $55.67

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 16, 2026

There is no time difference between Chatham and Islip. The current time is 21:22:03.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.