How far is Amherst, NY from Union, NY?
The driving distance from Amherst, NY to Union, NY is about 160.1 miles (257.7 km), with a travel time of about 03h 23m by car.
- The straight-line flight distance is about 147.6 miles (237.5 km).
- For a round trip, plan for roughly 06h 47m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
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.
This drive is better planned with a longer stop or an overnight stay.
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 03h 23m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Amherst and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Amherst and Union.
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1
Start on Millersport Highway
1848 ft · 51 sec · Millersport Highway
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2
Take the ramp slight right toward I 290 E
1756 ft · 43 sec
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3
Merge slight left onto Youngmann Expressway
2.4 mi · 3 min · Youngmann Expressway
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4
Keep slight left to continue on I 90 East: Albany
1 km · 57 sec
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5
Merge slight left onto New York State Thruway
99.4 mi · 1 hr 55 min · New York State Thruway
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6
Take the exit slight right toward NY 414: Waterloo, Clyde
2420 ft · 59 sec
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7
Keep slight right
100 m · 8 sec
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8
Continue on State Route 414
1557 ft · 35 sec · State Route 414
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9
Turn left
4.1 mi · 7 min
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10
At the end of the road, turn left onto Auburn Road
1.9 mi · 2 min · Auburn Road
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11
Continue on Clark Street Road
9.6 mi · 11 min · Clark Street Road
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12
Turn right onto State Street
69 m · 12 sec · State Street
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13
Turn left onto Dill Street
720 ft · 22 sec · Dill Street
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14
Continue on Loop Road
140 m · 17 sec · Loop Road
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15
Turn left onto Genesee Street
5.5 mi · 10 min · Genesee Street
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16
Continue on West Genesee Street Road
2.3 mi · 5 min · West Genesee Street Road
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17
Continue on Cherry Valley Turnpike
21.8 mi · 28 min · Cherry Valley Turnpike
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18
Continue on Route 20
6.6 mi · 10 min · Route 20
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19
Turn right onto Oran Delphi Road
2.5 mi · 4 min · Oran Delphi Road
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20
Turn left onto Delphi Falls Road
1.2 km · 2 min · Delphi Falls Road
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21
Continue on Delphi Road
1.3 km · 2 min · Delphi Road
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22
Turn right onto Kiley Road
22 m · 3 sec · Kiley Road
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23
Arrive at your destination
0 m · 1 sec · Kiley Road
Car Route Details
A richer read on the saved driving route between Amherst and Union.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
New York State Thruway
Merge slight left onto New York State Thruway
99.4 mi · 01h 55m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Mostly Sunny leaving Amherst and Mostly Sunny near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Amherst to Union?
The road trip is about 160.1 miles (257.7 km) and usually takes 03h 23m 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?
Farmington is a useful midpoint, sitting about 79.9 miles from Amherst and 80.3 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 147.6 miles (237.5 km), while the road route adds roughly 12.5 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 10:12 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.65 one way or $45.30 round trip. Estimated CO2 is about 50.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Amherst and Mostly Sunny near Union.
Stop Ideas Near Farmington
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 Farmington.
Louise M. Slaughter Rochester Station
Empire Expo Center
William F. Walsh Regional Transportation Center
Buffalo–Depew station
Flight Path Map
This map shows the direct air route between Amherst and Union. Straight-line distance: 147.56 mi (237.47 km).
#1 Amherst
Town in New York, United States
| Population | 120,809 |
| Coordinates | 42.9783900, -78.7997600 |
| Altitude | 182 |
| Country | United States |
#2 Union
Town in Broome County, New York, United States
| Population | 52,262 |
| Coordinates | 42.8678400, -75.8871400 |
| Altitude | 383 |
| Country | United States |
End: Union (-75.88714, 42.86784)
Estimated Travel Time
Distance: 258 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 20m |
| 40 mph (64.37 km/h) | 04h 00m |
| 50 mph (80.47 km/h) | 03h 12m |
| 60 mph (96.56 km/h) | 02h 40m |
| 70 mph (112.65 km/h) | 02h 17m |
| 80 mph (129 km/h) | 01h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $22.65 | $45.30 |
| Mid-grade | $4.48 | $25.32 | $50.64 |
| Premium | $4.86 | $27.46 | $54.93 |
| Diesel | $4.69 | $26.52 | $53.04 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.