How far is Thayer, MO from Cromwell, IA?
The driving distance from Thayer, MO to Cromwell, IA is about 479.2 miles (771.2 km), with a travel time of about 09h 25m by car.
- The straight-line flight distance is about 349.4 miles (562.3 km).
- For a round trip, plan for roughly 18h 50m 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 09h 25m.
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.
City in Henry County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Rain Showers
Cloudy
Driving Route Map
The map below follows the saved road route between Thayer and Cromwell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thayer and Cromwell.
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1
Start on the route
23 m · 11 sec
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2
Turn sharp left onto Front Street
133 m · 18 sec · Front Street
-
3
Turn left onto Walnut Street
911 ft · 27 sec · Walnut Street
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4
Turn left
95.3 mi · 1 hr 55 min
-
5
Continue straight
30.5 mi · 36 min
-
6
Take the exit slight right toward US 65 North: Sedalia
1511 ft · 32 sec
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7
Merge slight left onto Schoolcraft Freeway
8.1 mi · 10 min · Schoolcraft Freeway
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8
Take the exit slight right toward I 44 West: Joplin
1.3 km · 1 min
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9
Merge slight left onto Payne Stewart Highway
4.1 mi · 5 min · Payne Stewart Highway
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10
Take the exit slight right toward MO 13: Bolivar
596 ft · 15 sec
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11
Keep slight left to continue on MO 13: Bolivar
46 m · 4 sec
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12
Keep slight right to continue on MO 13 North: Bolivar
64 m · 7 sec
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13
Merge slight left onto North Kansas Expressway
87.2 mi · 1 hr 43 min · North Kansas Expressway
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14
Continue straight
35.9 mi · 39 min
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15
Take the exit slight right toward I 49 North, US 71 North, MO 7 North: Kansas City
26.6 mi · 30 min
-
16
Take the exit slight right toward I 435 North: Des Moines
1474 ft · 36 sec
-
17
Merge slight left
17.6 mi · 20 min
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18
Continue on I435 N
1.3 mi · 1 min · I435 N
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19
Continue straight
724 ft · 10 sec
-
20
Take the exit slight right toward I 35: Kansas City, Des Moines
599 ft · 15 sec
-
21
Keep slight right to continue on I 35 North, MO 110 East: Des Moines
2281 ft · 56 sec
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22
Merge slight left onto Chicago-Kansas City Expressway
6.3 mi · 7 min · Chicago-Kansas City Expressway
-
23
Keep slight left to continue on Chicago-Kansas City Expressway
127.6 mi · 2 hr 17 min · Chicago-Kansas City Expressway
-
24
Take the exit slight right toward US 34: Osceola, Creston
1654 ft · 40 sec
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25
Turn left
31.7 mi · 45 min
-
26
Turn right onto Cromwell Road
3.8 mi · 9 min · Cromwell Road
-
27
Continue on County Road H33
1328 ft · 42 sec · County Road H33
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28
Turn left onto Monroe Avenue
1408 ft · 1 min · Monroe Avenue
-
29
Turn right onto East 12th Street
12 m · 2 sec · East 12th Street
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30
Arrive at your destination
0 m · 1 sec · East 12th Street
Car Route Details
A richer read on the saved driving route between Thayer and Cromwell.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Chicago-Kansas City Expressway
Keep slight left to continue on Chicago-Kansas City Expressway
128 mi · 02h 17m
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.
Mostly Sunny then Chance Rain Showers leaving Thayer and Cloudy near Cromwell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thayer to Cromwell?
The road trip is about 479.2 miles (771.2 km) and usually takes 09h 25m 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?
Urich is a useful midpoint, sitting about 239.6 miles from Thayer and 239.6 miles from Cromwell.
How much longer is the road route than the straight-line distance?
The direct path is about 349.4 miles (562.3 km), while the road route adds roughly 129.8 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 $67.08 one way or $134.16 round trip. Estimated CO2 is about 150.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Rain Showers around Thayer and Cloudy near Cromwell.
Stop Ideas Near Urich
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 Urich.
Warrensburg
Lee's Summit
Sedalia
Independence
Flight Path Map
This map shows the direct air route between Thayer and Cromwell. Straight-line distance: 349.38 mi (562.28 km).
#2 Cromwell
City in Iowa, United-States
| Population | 105 |
| Coordinates | 41.0394300, -94.4619100 |
| Altitude | 392 |
| Country | United States |
End: Cromwell (-94.46191, 41.03943)
Estimated Travel Time
Distance: 771 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 58m |
| 40 mph (64.37 km/h) | 11h 58m |
| 50 mph (80.47 km/h) | 09h 35m |
| 60 mph (96.56 km/h) | 07h 59m |
| 70 mph (112.65 km/h) | 06h 50m |
| 80 mph (129 km/h) | 05h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.97 | $67.08 | $134.16 |
| Mid-grade | $4.33 | $73.22 | $146.44 |
| Premium | $4.69 | $79.27 | $158.55 |
| Diesel | $5.99 | $101.34 | $202.68 |
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 · Oct 16, 2026