How far is Altoona, PA from South Union, PA?
The driving distance from Altoona, PA to South Union, PA is about 134.7 miles (216.7 km), with a travel time of about 02h 49m by car.
- The straight-line flight distance is about 102.7 miles (165.3 km).
- For a round trip, plan for roughly 05h 39m 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 02h 49m.
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.
Clinton County, Pennsylvania, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Altoona and South Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Altoona and South Union.
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1
Start on 7th Street
1010 ft · 24 sec · 7th Street
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2
Turn left onto Lexington Avenue
78 m · 17 sec · Lexington Avenue
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3
Turn left onto 8th Street
2072 ft · 46 sec · 8th Street
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4
Turn left onto 6th Avenue
1.6 mi · 2 min · 6th Avenue
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5
Turn right onto Greenwood Road
3260 ft · 1 min · Greenwood Road
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6
Turn left onto East Walton Avenue
862 ft · 21 sec · East Walton Avenue
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7
Turn left onto East Pleasant Valley Boulevard
2.8 mi · 4 min · East Pleasant Valley Boulevard
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8
Turn right onto Sabbath Rest Road
3233 ft · 1 min · Sabbath Rest Road
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9
Take the ramp left toward I 99 North, US 220 North: Tyrone
1563 ft · 38 sec
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10
Merge slight left
30.6 mi · 33 min
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11
Keep slight left
4 mi · 5 min
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12
Keep slight left to continue on I 99 North, US 220 North: Bellefonte
12.3 mi · 15 min
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13
Turn left onto I 80 East, US 220 North: Williamsport
1283 ft · 31 sec
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14
Merge slight left onto Keystone Shortway
12.3 mi · 13 min · Keystone Shortway
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15
Take the exit slight right toward PA 64: Pleasant Gap, Mill Hall
2074 ft · 54 sec
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16
Turn left onto Nittany Valley Drive
4.5 mi · 8 min · Nittany Valley Drive
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17
Turn right onto Long Run Road
105 m · 7 sec · Long Run Road
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18
Take the ramp slight right
1182 ft · 40 sec
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19
Turn sharp left onto Frank D O'Reilly Jr Highway
5.7 mi · 7 min · Frank D O'Reilly Jr Highway
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20
Continue on Appalachian Thwy
1369 ft · 18 sec · Appalachian Thwy
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21
Continue on Appalachian Thruway
10.4 mi · 12 min · Appalachian Thruway
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22
Continue on Susquehanna Beltway
11.6 mi · 13 min · Susquehanna Beltway
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23
Take the exit slight right toward US 15 North: Mansfield
3059 ft · 1 min
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24
Merge slight left
26.8 mi · 31 min
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25
Take the exit slight right toward PA 414: Morris, Liberty
1510 ft · 32 sec
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26
Turn right onto Route 414
3052 ft · 1 min · Route 414
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27
Turn left onto Blockhouse Road
1901 ft · 38 sec · Blockhouse Road
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28
Turn right onto Water Street
4.3 mi · 8 min · Water Street
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29
Turn right onto Salt Spring Road
1.5 mi · 6 min · Salt Spring Road
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30
Turn left onto Beck Road
1.5 km · 4 min · Beck Road
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31
Turn left onto South Union Road
25 m · 4 sec · South Union Road
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32
Arrive at your destination
0 m · 1 sec · South Union Road
Car Route Details
A richer read on the saved driving route between Altoona and South Union.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 99 North
Merge slight left
30.6 mi · 00h 33m
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.
Sunny leaving Altoona and Sunny near South Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Altoona to South Union?
The road trip is about 134.7 miles (216.7 km) and usually takes 02h 49m 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?
Lamar is a useful midpoint, sitting about 67.3 miles from Altoona and 67.4 miles from South Union.
How much longer is the road route than the straight-line distance?
The direct path is about 102.7 miles (165.3 km), while the road route adds roughly 32 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 12:50 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.41 one way or $38.82 round trip. Estimated CO2 is about 42.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Altoona and Sunny near South Union.
Stop Ideas Near Lamar
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 Lamar.
Lewistown
Tyrone
Huntingdon
Altoona Transportation Center
Flight Path Map
This map shows the direct air route between Altoona and South Union. Straight-line distance: 102.71 mi (165.29 km).
#1 Altoona
A city in Blair County, Pennsylvania.
| Population | 42,989 |
| Coordinates | 40.5186800, -78.3947400 |
| Altitude | 355 |
| Country | United States |
#2 South Union
Township in Fayette County, Pennsylvania
| Population | 10,106 |
| Coordinates | 41.5681300, -76.9988600 |
| Altitude | 552 |
| Country | United States |
End: South Union (-76.99886, 41.56813)
Estimated Travel Time
Distance: 217 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 29m |
| 40 mph (64.37 km/h) | 03h 21m |
| 50 mph (80.47 km/h) | 02h 41m |
| 60 mph (96.56 km/h) | 02h 14m |
| 70 mph (112.65 km/h) | 01h 55m |
| 80 mph (129 km/h) | 01h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $19.41 | $38.82 |
| Mid-grade | $4.60 | $21.85 | $43.69 |
| Premium | $4.95 | $23.53 | $47.06 |
| Diesel | $5.98 | $28.41 | $56.81 |
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 Pennsylvania · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.