How far is Saint Joseph, MO from Flat River, MO?
The driving distance from Saint Joseph, MO to Flat River, MO is about 355.9 miles (572.7 km), with a travel time of about 06h 47m by car.
- The straight-line flight distance is about 268.1 miles (431.5 km).
- For a round trip, plan for roughly 13h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
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 06h 47m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
The most populous city in the state of Missouri.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Sunny
Driving Route Map
The map below follows the saved road route between Saint Joseph and Flat River.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Joseph and Flat River.
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1
Start on Walter Welsh Avenue
127 m · 9 sec · Walter Welsh Avenue
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2
Turn right onto North 12th Street
91 m · 10 sec · North 12th Street
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3
Turn right onto Francis Street
1130 ft · 38 sec · Francis Street
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4
Turn left onto North 9th Street
1.2 mi · 2 min · North 9th Street
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5
Take the ramp slight right
741 ft · 16 sec
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6
Merge slight left
929 ft · 20 sec
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7
Take the exit slight left toward I 229 South, US 59 South: Kansas City
992 ft · 21 sec
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8
Merge slight left
4.5 mi · 5 min
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9
Keep slight right to continue on I 29 South, US 71 South: Kansas City
1705 ft · 29 sec
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10
Merge slight left
26.1 mi · 28 min
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11
Merge slight right
2.2 mi · 2 min
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12
Keep slight right to continue on I 435 East: Saint Louis
28 mi · 31 min
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13
Keep slight right to continue on I 70, US 24 West, US 40: Saint Louis, Kansas City, Sports Complex
1500 ft · 23 sec
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14
Keep slight left to continue on I 70 East: Saint Louis
1.2 mi · 2 min
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15
Keep slight left to continue on I 70 East: Saint Louis
143 m · 12 sec
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16
Merge slight left onto George Brett Super Highway
2213 ft · 29 sec · George Brett Super Highway
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17
Continue on Truman/Eisenhower Presidential Highway
2.9 mi · 3 min · Truman/Eisenhower Presidential Highway
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18
Continue on Clifton J. Scott Memorial Highway
1.8 mi · 2 min · Clifton J. Scott Memorial Highway
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19
Continue on Truman/Eisenhower Presidential Highway
2.6 mi · 3 min · Truman/Eisenhower Presidential Highway
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20
Continue on Dwight D. Eisenhower Highway
52.5 mi · 57 min · Dwight D. Eisenhower Highway
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21
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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22
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
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23
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
-
24
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
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25
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
-
26
Continue on Dwight D. Eisenhower Highway
81 mi · 1 hr 35 min · Dwight D. Eisenhower Highway
-
27
Take the exit slight right toward I 64 East, US 40 East, US 61 South: Chesterfield
1567 ft · 33 sec
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28
Merge slight left onto Avenue of the Saints
25.1 mi · 31 min · Avenue of the Saints
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29
Take the exit slight right toward I 270: Chicago, Memphis
1829 ft · 39 sec
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30
Keep slight right to continue on I 270 South: Memphis
1691 ft · 31 sec
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31
Merge slight left
11.5 mi · 14 min
-
32
Take the exit slight right toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
1911 ft · 27 sec
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33
Keep slight right to continue on I 55 South: Memphis
2031 ft · 44 sec
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34
Merge slight left onto Rosa Parks Highway
1.5 mi · 2 min · Rosa Parks Highway
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35
Continue on Officer Thomas G. Smith, Jr. Memorial Highway
1.8 mi · 2 min · Officer Thomas G. Smith, Jr. Memorial Highway
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36
Continue on Police Officer Steven Jarvis Memorial Highway
18.3 mi · 20 min · Police Officer Steven Jarvis Memorial Highway
-
37
Take the exit slight right toward US 67 South: Farmington, Poplar Bluff
914 ft · 20 sec
-
38
Keep slight left
729 ft · 18 sec
-
39
Enter the roundabout and take exit 1 toward the route
9 m · 1 sec
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40
Exit the roundabout
26.4 mi · 30 min
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41
Take the exit slight right toward US 67 Business, MO 8: Desloge, Park Hills
836 ft · 22 sec
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42
Turn right
107 m · 7 sec
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43
Turn left onto North Desloge Drive
1.9 mi · 3 min · North Desloge Drive
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44
Continue on Taylor Avenue
1.4 km · 2 min · Taylor Avenue
-
45
Continue on Coffman Street
116 m · 14 sec · Coffman Street
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46
Turn left onto West Main Street
1420 ft · 32 sec · West Main Street
-
47
Turn left onto Crane Street
93 m · 8 sec · Crane Street
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48
Arrive at your destination
0 m · 1 sec · Crane Street
Car Route Details
A richer read on the saved driving route between Saint Joseph and Flat River.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Dwight D. Eisenhower Highway
Continue on Dwight D. Eisenhower Highway
81 mi · 01h 35m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely leaving Saint Joseph and Sunny near Flat River.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Joseph to Flat River?
The road trip is about 355.9 miles (572.7 km) and usually takes 06h 47m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Columbia is a useful midpoint, sitting about 177.7 miles from Saint Joseph and 178.1 miles from Flat River.
How much longer is the road route than the straight-line distance?
The direct path is about 268.1 miles (431.5 km), while the road route adds roughly 87.8 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.36 one way or $94.73 round trip. Estimated CO2 is about 111.6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely around Saint Joseph and Sunny near Flat River.
Stop Ideas Near Columbia
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 Columbia.
Jefferson City
Sedalia
Hermann
Flight Path Map
This map shows the direct air route between Saint Joseph and Flat River. Straight-line distance: 268.13 mi (431.51 km).
#1 Saint Joseph
The most populous city in Buchanan County, Missouri.
| Population | 74,074 |
| Coordinates | 39.7686100, -94.8466300 |
| Altitude | 270 |
| Country | United States |
#2 Flat River
River in Michigan, United States of America
| Population | 5,157 |
| Coordinates | 37.8500500, -90.5167900 |
| Altitude | 219 |
| Country | United States |
End: Flat River (-90.51679, 37.85005)
Estimated Travel Time
Distance: 573 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 51m |
| 40 mph (64.37 km/h) | 08h 53m |
| 50 mph (80.47 km/h) | 07h 07m |
| 60 mph (96.56 km/h) | 05h 55m |
| 70 mph (112.65 km/h) | 05h 05m |
| 80 mph (129 km/h) | 04h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $47.36 | $94.73 |
| Mid-grade | $4.25 | $53.42 | $106.84 |
| Premium | $4.65 | $58.45 | $116.91 |
| Diesel | $5.30 | $66.62 | $133.24 |
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.