How far is Sanford, ME from Union, ME?
The driving distance from Sanford, ME to Union, ME is about 111.3 miles (179.1 km), with a travel time of about 02h 24m by car.
- The straight-line flight distance is about 91.8 miles (147.8 km).
- For a round trip, plan for roughly 04h 49m 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 24m.
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.
Town in Maine, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Sanford and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sanford and Union.
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1
Start on the route
27 m · 8 sec
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2
Turn right onto Washington Street
763 ft · 23 sec · Washington Street
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3
Continue on River Street
872 ft · 26 sec · River Street
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4
Turn right onto Cottage Street
1.2 mi · 3 min · Cottage Street
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5
Continue on Sanford Road
2.4 mi · 4 min · Sanford Road
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6
Continue on Biddeford Road
1.8 mi · 2 min · Biddeford Road
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7
Continue on Alfred Road
8.2 mi · 9 min · Alfred Road
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8
Continue on Alfred Street
1.4 mi · 2 min · Alfred Street
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9
Take the ramp left
735 ft · 1 min
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10
Keep slight right to continue on I 95 North Toll: Portland, Augusta
1317 ft · 33 sec
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11
Merge slight left onto Maine Turnpike
12.2 mi · 13 min · Maine Turnpike
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12
Keep slight right to continue on Downtown Portland
51.3 mi · 59 min
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13
Take the exit slight right toward ME 9, ME 126: Litchfield, Gardiner
1774 ft · 50 sec
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14
Turn right onto Lewiston Road
1.1 mi · 2 min · Lewiston Road
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15
Continue on Cobbossee Avenue
1.1 km · 60 sec · Cobbossee Avenue
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16
Continue on Lewiston Road
642 ft · 11 sec · Lewiston Road
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17
Continue on Central Street
916 ft · 15 sec · Central Street
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18
Turn straight onto Water Street
1.4 km · 1 min · Water Street
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19
Turn left onto Bridge Street
2616 ft · 49 sec · Bridge Street
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20
At the end of the road, turn right onto Water Street
974 ft · 34 sec · Water Street
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21
Turn left onto Windsor Street
1.7 mi · 3 min · Windsor Street
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22
Continue on Togus Road
3.7 mi · 7 min · Togus Road
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23
At the end of the road, turn right onto Augusta Road
3098 ft · 53 sec · Augusta Road
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24
Continue on Eastern Avenue
1.1 mi · 2 min · Eastern Avenue
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25
Continue on Augusta Road
1.5 km · 1 min · Augusta Road
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26
Continue on Augusta-Rockland Road
4.1 mi · 6 min · Augusta-Rockland Road
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27
Continue on Rockland Road
1.3 mi · 2 min · Rockland Road
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28
Continue on Rockland Road
4.9 mi · 7 min · Rockland Road
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29
Continue on Augusta Road
3.5 mi · 5 min · Augusta Road
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30
Continue on Rockland Road
2.2 mi · 3 min · Rockland Road
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31
Continue on Heald Highway
3.3 mi · 5 min · Heald Highway
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32
Turn right onto Common Road
3192 ft · 1 min · Common Road
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33
Arrive at your destination
0 m · 1 sec · Common Road
Car Route Details
A richer read on the saved driving route between Sanford and Union.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Downtown Portland
Keep slight right to continue on Downtown Portland
51.3 mi · 00h 59m
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.
Partly Cloudy leaving Sanford and Areas Of Fog near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sanford to Union?
The road trip is about 111.3 miles (179.1 km) and usually takes 02h 24m 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?
Topsham is a useful midpoint, sitting about 55.6 miles from Sanford and 55.7 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 91.8 miles (147.8 km), while the road route adds roughly 19.5 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 1:40 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.50 one way or $31.01 round trip. Estimated CO2 is about 34.9 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Sanford and Areas Of Fog near Union.
Stop Ideas Near Topsham
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 Topsham.
Brunswick Maine Street Station
Freeport
Bath, Maine
Wiscasset, Maine
Flight Path Map
This map shows the direct air route between Sanford and Union. Straight-line distance: 91.85 mi (147.82 km).
#1 Sanford
City in York County, Maine, United States
| Population | 21,253 |
| Coordinates | 43.4392500, -70.7742200 |
| Altitude | 92 |
| Country | United States |
#2 Union
Town in Knox County, Maine, United States
| Population | 2,275 |
| Coordinates | 44.2114700, -69.2742100 |
| Altitude | 28 |
| Country | United States |
End: Union (-69.27421, 44.21147)
Estimated Travel Time
Distance: 179 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 42m |
| 40 mph (64.37 km/h) | 02h 46m |
| 50 mph (80.47 km/h) | 02h 13m |
| 60 mph (96.56 km/h) | 01h 51m |
| 70 mph (112.65 km/h) | 01h 35m |
| 80 mph (129 km/h) | 01h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $15.50 | $31.01 |
| Mid-grade | $4.46 | $17.52 | $35.03 |
| Premium | $4.86 | $19.09 | $38.18 |
| Diesel | $6.00 | $23.57 | $47.14 |
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 Maine · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.