How far is Key Largo, FL from Harmony, MN?
The driving distance from Key Largo, FL to Harmony, MN is about 1687.5 miles (2715.8 km), with a travel time of about 32h 00m by car.
- The straight-line flight distance is about 1433.3 miles (2306.6 km).
- For a round trip, plan for roughly 64h 00m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EST.
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 32h 00m.
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.
Town in Tennessee, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Key Largo and Harmony.
Turn-by-Turn Driving Directions
Step-by-step road directions between Key Largo and Harmony.
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1
Start on Harbor Drive
94 m · 16 sec · Harbor Drive
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2
Turn right onto Overseas Highway
9.3 mi · 16 min · Overseas Highway
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3
Continue on Dixie Highway
19.4 mi · 27 min · Dixie Highway
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4
Take the exit slight right toward Miami, Orlando, Florida's Turnpike North
1785 ft · 38 sec
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5
Continue on Homestead Extension of Florida's Turnpike
13.2 mi · 16 min · Homestead Extension of Florida's Turnpike
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6
Keep slight right to continue on Homestead Extension of Florida's Turnpike
3.6 mi · 5 min · Homestead Extension of Florida's Turnpike
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7
Keep slight left to continue on Homestead Extension of Florida's Turnpike
2.5 mi · 3 min · Homestead Extension of Florida's Turnpike
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8
Keep slight right to continue on Homestead Extension of Florida's Turnpike
27.1 mi · 30 min · Homestead Extension of Florida's Turnpike
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9
Keep slight right to continue on Homestead Extension of Florida's Turnpike
1 mi · 1 min · Homestead Extension of Florida's Turnpike
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10
Merge slight left onto Florida's Turnpike
260.5 mi · 4 hr 43 min · Florida's Turnpike
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11
Keep slight left to continue on Florida's Turnpike
1281 ft · 16 sec · Florida's Turnpike
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12
Merge slight left
299.6 mi · 5 hr 21 min
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13
Keep slight left to continue on Larry Justice Highway
15.9 mi · 17 min · Larry Justice Highway
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14
Merge slight right
49.5 mi · 54 min
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15
Keep slight left to continue on I 75 North: Atlanta, Birmingham
22.8 mi · 28 min
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16
Keep slight right to continue on Horace E Tate Freeway
7.2 mi · 9 min · Horace E Tate Freeway
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17
Continue on Larry McDonald Memorial Highway
10.5 mi · 12 min · Larry McDonald Memorial Highway
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18
Keep slight left to continue on Larry McDonald Memorial Highway
87.8 mi · 1 hr 35 min · Larry McDonald Memorial Highway
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19
Take the exit slight right toward I 24 West: Chattanooga, Nashville
1.2 km · 1 min
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20
Continue on Chattanooga, Nashville
134.5 mi · 2 hr 32 min
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21
Keep slight left to continue on I 24West, I 40 West: Nashville
2.2 mi · 3 min
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22
Keep slight right to continue on I 24 West: Clarksville, Louisville
1725 ft · 28 sec
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23
Merge slight left onto Downtown Loop
2.3 mi · 3 min · Downtown Loop
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24
Continue on I 24 West, I 65 North: Clarksville, Louisville
2.1 mi · 3 min
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25
Take the exit slight left toward I 24 West: Clarksville
112.7 mi · 2 hr 1 min
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26
Keep slight right
63.4 mi · 1 hr 10 min
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27
Keep slight left to continue on I 57 North: Chicago
1935 ft · 47 sec
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28
Merge slight left onto Ken Gray Expressway
51.7 mi · 56 min · Ken Gray Expressway
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29
Keep slight left to continue on I 64 West: Saint Louis
72.5 mi · 1 hr 20 min
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30
Keep slight right to continue on IL 3 South: Cahokia
1.6 mi · 2 min
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31
Keep slight left to continue on Jack Buck Memorial Highway
6.9 mi · 9 min · Jack Buck Memorial Highway
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32
Continue on Daniel Boone Expressway
5.7 mi · 7 min · Daniel Boone Expressway
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33
Continue on Avenue of the Saints
101.2 mi · 2 hr 1 min · Avenue of the Saints
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34
Take the exit slight left
76 m · 15 sec
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35
Turn left onto Paris Gravel Road
2645 ft · 1 min · Paris Gravel Road
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36
Keep slight right to continue on County Road 422
85 m · 9 sec · County Road 422
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37
Turn right onto Veterans Road
3.2 mi · 6 min · Veterans Road
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38
Turn left
1.7 mi · 2 min
-
39
Turn left onto Avenue of the Saints
17 mi · 20 min · Avenue of the Saints
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40
Take the exit slight right toward Avenue of the Saints
75.5 mi · 1 hr 27 min · Avenue of the Saints
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41
Keep slight left to continue on Avenue of the Saints
106.8 mi · 2 hr 1 min · Avenue of the Saints
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42
Take the exit slight right toward CR V65: Jesup, La Porte City
2146 ft · 54 sec
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43
Turn right onto South Black Hawk Buchanan Avenue
1.5 km · 1 min · South Black Hawk Buchanan Avenue
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44
Continue on Benson Shady Grove Avenue
7.1 mi · 10 min · Benson Shady Grove Avenue
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45
At the end of the road, turn left onto South Street
1395 ft · 30 sec · South Street
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46
Turn right onto Main Street
1.6 km · 2 min · Main Street
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47
Continue on Baxter Avenue
9 mi · 12 min · Baxter Avenue
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48
Enter the roundabout and take exit 2 toward Baxter Avenue
39 m · 3 sec · Baxter Avenue
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49
Exit the roundabout onto Baxter Avenue
1.5 mi · 2 min · Baxter Avenue
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50
Continue on Walnut Street South
1337 ft · 51 sec · Walnut Street South
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51
Turn left onto Fairbank Street
1223 ft · 26 sec · Fairbank Street
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52
Continue on 102nd Street
1 mi · 1 min · 102nd Street
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53
Turn right onto North Black Hawk Buchanan Avenue
1375 ft · 27 sec · North Black Hawk Buchanan Avenue
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54
Continue on Y Avenue
5 mi · 9 min · Y Avenue
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55
Turn left onto 230th Street
3 mi · 4 min · 230th Street
-
56
Turn right onto Viking Avenue
13.3 mi · 18 min · Viking Avenue
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57
Continue on Union Avenue
11.1 mi · 15 min · Union Avenue
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58
Continue on County Highway V56
133 m · 11 sec · County Highway V56
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59
Turn right onto State Highway 24
2539 ft · 53 sec · State Highway 24
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60
Turn left onto Union Avenue
9.7 mi · 13 min · Union Avenue
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61
Turn right onto 100th Street
1 mi · 1 min · 100th Street
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62
Turn left onto Willow Avenue
9.9 mi · 14 min · Willow Avenue
-
63
Continue on 3rd Street Southwest
1 mi · 2 min · 3rd Street Southwest
-
64
Turn right onto 2nd Avenue Southwest
1 mi · 2 min · 2nd Avenue Southwest
-
65
Continue on State Highway 9
1 mi · 2 min · State Highway 9
-
66
Turn left onto State Highway 139
2.1 mi · 3 min · State Highway 139
-
67
Continue on State Highway 139
12.3 mi · 17 min · State Highway 139
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68
Continue on Main Avenue South
1.3 km · 2 min · Main Avenue South
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69
Turn left onto 1st Street Northwest
14 m · 2 sec · 1st Street Northwest
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70
Arrive at your destination
0 m · 1 sec · 1st Street Northwest
Car Route Details
A richer read on the saved driving route between Key Largo and Harmony.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Florida's Turnpike
Merge slight left
300 mi · 05h 21m
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.
Sunny leaving Key Largo and Partly Cloudy near Harmony.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Key Largo to Harmony?
The road trip is about 1687.5 miles (2715.8 km) and usually takes 32h 00m 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?
Lookout Mountain is a useful midpoint, sitting about 839.7 miles from Key Largo and 847.8 miles from Harmony.
How much longer is the road route than the straight-line distance?
The direct path is about 1433.3 miles (2306.6 km), while the road route adds roughly 254.2 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 EST. 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 $228.31 one way or $456.63 round trip. Estimated CO2 is about 529.2 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Key Largo and Harmony, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Key Largo and Partly Cloudy near Harmony.
Flight Path Map
This map shows the direct air route between Key Largo and Harmony. Straight-line distance: 1433.22 mi (2306.55 km).
#1 Key Largo
Census designated place in Florida, United States
| Population | 10,433 |
| Coordinates | 25.0865200, -80.4472800 |
| Altitude | 2 |
| Country | United States |
#2 Harmony
City in Minnesota, United States
| Population | 410 |
| Coordinates | 43.5552400, -92.0101600 |
| Altitude | 412 |
| Country | United States |
End: Harmony (-92.01016, 43.55524)
Estimated Travel Time
Distance: 2716 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 56h 13m |
| 40 mph (64.37 km/h) | 42h 11m |
| 50 mph (80.47 km/h) | 33h 44m |
| 60 mph (96.56 km/h) | 28h 07m |
| 70 mph (112.65 km/h) | 24h 06m |
| 80 mph (129 km/h) | 21h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.83 | $228.31 | $456.63 |
| Mid-grade | $4.32 | $257.26 | $514.51 |
| Premium | $4.66 | $277.68 | $555.36 |
| Diesel | $5.94 | $353.79 | $707.57 |
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 Florida · Nov 06, 2026