How far is Ontario, NY from Mount Vernon, NY?

The driving distance from Ontario, NY to Mount Vernon, NY is about 316.3 miles (509.1 km), with a travel time of about 05h 22m by car.

  • The straight-line flight distance is about 238 miles (383.1 km).
  • For a round trip, plan for roughly 10h 44m 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
316.36 mi
05h 22m
Flight
238.03 mi
383.07 km direct

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

Learn Distance

Choose another destination from Ontario.

Flight Distance

Direct air line
238.03 mi
Kilometers
383.07 km
Flight Time
00h 28m

Driving Distance

Road route
316.36 mi
Kilometers
509.13 km
Drive Time
05h 22m

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 05h 22m.

Arrival Snapshot
Arrive in Mount Vernon
Thu, Oct 15, 10:51 PM EDT
Return by in Ontario
Fri, Oct 16, 4:13 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Ontario
2026-10-15T17:28
Arrive Mount Vernon
Thu, Oct 15, 10:51 PM EDT
Route Timing
05h 22m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
11:22 AM to 1:22 PM EDT

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

Leave by
6:16 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Ontario
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
Windsor
NY

Town in Broome County, New York, United States

From Ontario
157.5 mi
02h 41m
To Mount Vernon
158.9 mi
02h 41m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
56°F
This Afternoon

Partly Sunny

Starts
Thu, Oct 15 1:00 PM EDT
Wind
8 mph NE
Destination
63°F
This Afternoon

Sunny

Starts
Thu, Oct 15 1:00 PM EDT
Wind
7 mph E

Driving Route Map

The map below follows the saved road route between Ontario and Mount Vernon.

Turn-by-Turn Driving Directions

Step-by-step road directions between Ontario and Mount Vernon.

  1. 1

    Start on Ridge Road

    28 m · 6 sec · Ridge Road

  2. 2

    Turn right onto Furnace Road

    2357 ft · 1 min · Furnace Road

  3. 3

    Turn right

    26.8 mi · 37 min

  4. 4

    Turn right onto Ridge Road

    2.2 mi · 3 min · Ridge Road

  5. 5

    Turn slight right onto State Route 370

    2.1 mi · 3 min · State Route 370

  6. 6

    Continue on State Highway 370

    7.9 mi · 11 min · State Highway 370

  7. 7

    Continue on West Main Street

    3.6 mi · 8 min · West Main Street

  8. 8

    Continue on State Route 370

    1.7 mi · 2 min · State Route 370

  9. 9

    Continue on Main Street

    1.1 km · 54 sec · Main Street

  10. 10

    Continue on West Genesee Road

    5.7 mi · 8 min · West Genesee Road

  11. 11

    Take the exit left

    5.9 mi · 7 min

  12. 12

    Continue straight

    8.7 mi · 11 min

  13. 13

    Take the exit slight right toward I 81 South: Binghamton

    1243 ft · 30 sec

  14. 14

    Merge slight left

    2.8 mi · 4 min

  15. 15

    Continue straight

    1.2 km · 49 sec

  16. 16

    Continue straight

    72.6 mi · 1 hr 25 min

  17. 17

    Keep slight left to continue on New York

    129.9 mi · 2 hr 40 min

  18. 18

    Take the exit slight right toward US 6: Bear Mountain

    7.1 mi · 9 min

  19. 19

    Enter the roundabout and take exit 2 toward Long Mountain Circle

    105 m · 5 sec

  20. 20

    Exit the rotary onto Palisades Interstate Parkway South

    2854 ft · 1 min

  21. 21

    Merge slight right onto Palisades Interstate Parkway

    15.1 mi · 17 min · Palisades Interstate Parkway

  22. 22

    Take the exit slight right toward I 87 South, I 287 East: New York City, White Plains, New York State Thruway South

    2292 ft · 1 min

  23. 23

    Merge slight left onto New York State Thruway

    9.2 mi · 13 min · New York State Thruway

  24. 24

    Keep slight right to continue on New York State Thruway

    8.8 mi · 12 min · New York State Thruway

  25. 25

    Take the exit slight right toward Cross County Parkway, Mile Square Road

    1552 ft · 39 sec

  26. 26

    Turn straight onto Central Park Avenue

    1986 ft · 57 sec · Central Park Avenue

  27. 27

    Take the ramp slight right toward Cross County Parkway East

    1167 ft · 29 sec

  28. 28

    Merge slight left onto Cross County Parkway (local lanes)

    1 mi · 2 min · Cross County Parkway (local lanes)

  29. 29

    Take the exit slight right toward West Broad Street, Gramatan Avenue

    102 m · 21 sec

  30. 30

    Turn slight right onto Fleetwood Avenue

    1511 ft · 47 sec · Fleetwood Avenue

  31. 31

    Turn right onto Gramatan Avenue

    1768 ft · 45 sec · Gramatan Avenue

  32. 32

    Enter the roundabout and take exit 2 toward Gramatan Avenue

    33 m · 2 sec · Gramatan Avenue

  33. 33

    Exit the roundabout onto Gramatan Avenue

    1696 ft · 47 sec · Gramatan Avenue

  34. 34

    Turn left onto East Prospect Avenue

    17 m · 2 sec · East Prospect Avenue

  35. 35

    Arrive at your destination

    0 m · 1 sec · East Prospect Avenue

Car Route Details

A richer read on the saved driving route between Ontario and Mount Vernon.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
35 steps
12 turns on the saved route
Ramps & Exits
15
4 merges, 11 ramps or exits
Navigation Density
11.1 / 100 mi
Decision points by distance
Main Roads
New York
130 mi · 41%
I 81 South
76.3 mi · 24%
West Genesee Road
20.3 mi · 6%
New York State Thruway
18.1 mi · 6%
Palisades Interstate Parkway
15.1 mi · 5%
State Highway 370
7.87 mi · 2%
Longest Stretch

New York

Keep slight left to continue on New York

130 mi · 02h 40m

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
05h 22m
Long day trip
Same-Day Return
10h 44m
Round-trip wheel time
Road vs Air
+78.3 mi
238 mi direct line
Halfway Stop
Windsor
02h 41m from Ontario
Leave By
6:16 AM EDT
Early departure recommended
Weather Watch

Partly Sunny leaving Ontario and Sunny near Mount Vernon.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Ontario to Mount Vernon?

The road trip is about 316.3 miles (509.1 km) and usually takes 05h 22m 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?

Windsor is a useful midpoint, sitting about 157.5 miles from Ontario and 158.9 miles from Mount Vernon.

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

The direct path is about 238 miles (383.1 km), while the road route adds roughly 78.3 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 6:16 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $49.64 one way or $99.28 round trip. Estimated CO2 is about 99.2 kg one way.

What should you check before leaving?

Before you leave, expect Partly Sunny around Ontario and Sunny near Mount Vernon.

Stop Ideas Near Windsor

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

Mid-route Guidance
Local place coverage is thin around Windsor, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

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

BUS

Scranton, PA

74 mi away
23 Lackawanna Avenue
BUS

Wilkes-Barre, PA

95 mi away
47 South Washington Street
BUS

White Haven, PA

112 mi away
I-476, Exit 95/I-80, Exit 277, at Hwy 940
RAIL

Union Station

119 mi away
321 Main St.

Flight Path Map

This map shows the direct air route between Ontario and Mount Vernon. Straight-line distance: 238.03 mi (383.07 km).

Ontario

#1 Ontario

Human settlement in United States of America

Population10,173
Coordinates43.2209000, -77.2830400
Altitude134
CountryUnited States
Mount Vernon

#2 Mount Vernon

The most populous city in Westchester County, New York.

Population68,628
Coordinates40.9126000, -73.8370800
Altitude33
CountryUnited States
Start: Ridge Road (-77.283052, 43.22087)
End: East Prospect Avenue (-73.83708, 40.912722)

Estimated Travel Time

Distance: 509 km by road

SpeedTime
30 mph (48.3 km/h)10h 32m
40 mph (64.37 km/h)07h 54m
50 mph (80.47 km/h)06h 19m
60 mph (96.56 km/h)05h 16m
70 mph (112.65 km/h)04h 31m
80 mph (129 km/h)03h 56m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
11.16 gal
42.26 L · about $49.64
Round trip
$99.28
22.32 gal · 84.52 L
Estimated CO2
99.2 kg one way
Round trip: 198.4 kg / 437 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.45 $49.64 $99.28
Mid-grade $4.98 $55.60 $111.20
Premium $5.38 $60.06 $120.13
Diesel $6.51 $72.64 $145.28

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 · Oct 15, 2026

There is no time difference between Ontario and Mount Vernon. The current time is 17:28:54.

Distance to Other Cities

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