How far is Chesterfield, MO from Union, MO?
The driving distance from Chesterfield, MO to Union, MO is about 34.5 miles (55.6 km), with a travel time of about 00h 53m by car.
- The straight-line flight distance is about 27.6 miles (44.4 km).
- For a round trip, plan for roughly 01h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 00h 53m.
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.
City in Missouri
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Chesterfield and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Chesterfield and Union.
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1
Start on Santa Maria Drive
1514 ft · 1 min · Santa Maria Drive
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2
At the end of the road, turn right onto Wild Horse Creek Road
551 ft · 20 sec · Wild Horse Creek Road
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3
Turn left onto Baxter Road
1.6 mi · 3 min · Baxter Road
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4
Turn right onto Clarkson Road
3.6 mi · 7 min · Clarkson Road
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5
Turn right onto Manchester Road
16.8 mi · 24 min · Manchester Road
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6
Take the exit slight right toward I 44 West, US 50 West: St. Clair
1157 ft · 14 sec
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7
Merge slight left
5.9 mi · 6 min
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8
Take the exit slight right toward US 50 West: Union, Jefferson City
1271 ft · 27 sec
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9
Merge slight left
4.8 mi · 7 min
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10
Turn right
157 m · 15 sec
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11
Turn left onto East Main Street
1641 ft · 50 sec · East Main Street
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12
Turn right onto North McKinley Avenue
75 m · 7 sec · North McKinley Avenue
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13
Continue on North McKinley Avenue
119 m · 15 sec · North McKinley Avenue
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14
Continue on East State Street
159 m · 27 sec · East State Street
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15
Turn right onto North Church Street
984 ft · 39 sec · North Church Street
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16
Turn left onto East Park Avenue
900 ft · 31 sec · East Park Avenue
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17
Turn left
19 m · 5 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Chesterfield 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.
Manchester Road
Turn right onto Manchester Road
16.8 mi · 00h 24m
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.
Mostly Sunny leaving Chesterfield 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 Chesterfield to Union?
The road trip is about 34.5 miles (55.6 km) and usually takes 00h 53m 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?
Pacific is a useful midpoint, sitting about 17.3 miles from Chesterfield and 17.3 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 27.6 miles (44.4 km), while the road route adds roughly 6.9 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 CDT. If you want a more comfortable same-day return, try to leave by 4:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.60 one way or $9.20 round trip. Estimated CO2 is about 10.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Chesterfield and Mostly Sunny near Union.
Stop Ideas Near Pacific
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 Pacific.
Washington
Kirkwood
Gateway Transportation Center
Hermann
Flight Path Map
This map shows the direct air route between Chesterfield and Union. Straight-line distance: 27.57 mi (44.37 km).
#1 Chesterfield
A city in St.
| Population | 47,570 |
| Coordinates | 38.6631100, -90.5770700 |
| Altitude | 144 |
| Country | United States |
#2 Union
City in and county seat of Franklin County, Missouri, United States
| Population | 12,094 |
| Coordinates | 38.4500500, -91.0084800 |
| Altitude | 162 |
| Country | United States |
End: Union (-91.00848, 38.45005)
Estimated Travel Time
Distance: 56 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 09m |
| 40 mph (64.37 km/h) | 00h 51m |
| 50 mph (80.47 km/h) | 00h 41m |
| 60 mph (96.56 km/h) | 00h 34m |
| 70 mph (112.65 km/h) | 00h 29m |
| 80 mph (129 km/h) | 00h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.60 | $9.20 |
| Mid-grade | $4.25 | $5.19 | $10.38 |
| Premium | $4.65 | $5.68 | $11.36 |
| Diesel | $5.30 | $6.47 | $12.94 |
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 Missouri · 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.