How far is Jacksonville, FL from Cudjoe Key, FL?

The driving distance from Jacksonville, FL to Cudjoe Key, FL is about 482.8 miles (777 km), with a travel time of about 09h 42m by car.

  • The straight-line flight distance is about 391.2 miles (629.6 km).
  • For a round trip, plan for roughly 19h 25m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
482.82 mi
09h 42m
Flight
391.23 mi
629.63 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Jacksonville.

Flight Distance

Direct air line
391.23 mi
Kilometers
629.63 km
Flight Time
00h 47m

Driving Distance

Road route
482.82 mi
Kilometers
777.03 km
Drive Time
09h 42m

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 42m.

Arrival Snapshot
Arrive in Cudjoe Key
Fri, Apr 24, 3:05 AM EDT
Return by in Jacksonville
Fri, Apr 24, 12:48 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Jacksonville
2026-04-23T17:22
Arrive Cudjoe Key
Fri, Apr 24, 3:05 AM EDT
Route Timing
09h 42m
One way by road
Best Departure Window
6:00 AM to 7:30 AM EDT
Treat this as a longer travel day
Arrive between
3:43 PM to 5:13 PM EDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
4:34 PM EDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in Jacksonville
8:00 PM EDT
Overnight-style route

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.

Mid-route stop
Stuart
FL

City in Florida

From Jacksonville
241.9 mi
04h 51m
To Cudjoe Key
240.9 mi
04h 51m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
82°F
Thursday

Sunny

Starts
Thu, Apr 23 6:00 AM EDT
Wind
1 to 14 mph S
Destination
80°F
Thursday

Slight Chance Rain Showers

Starts
Thu, Apr 23 6:00 AM EDT
Wind
15 mph E

Driving Route Map

The map below follows the saved road route between Jacksonville and Cudjoe Key.

Turn-by-Turn Driving Directions

Step-by-step road directions between Jacksonville and Cudjoe Key.

  1. 1

    Start on Union Street

    596 ft · 21 sec · Union Street

  2. 2

    Turn right onto Newnan Street

    1965 ft · 1 min · Newnan Street

  3. 3

    Turn right onto East Forsyth Street

    770 ft · 24 sec · East Forsyth Street

  4. 4

    Turn left onto Main Street

    2507 ft · 1 min · Main Street

  5. 5

    Take the ramp straight toward I 95 South

    1.5 km · 2 min

  6. 6

    Keep slight right to continue on I 95, US 1 South, FL 5 South: Daytona Beach, Philips Highway

    1165 ft · 28 sec

  7. 7

    Keep slight left to continue on I 95 South: Daytona Beach

    1093 ft · 27 sec

  8. 8

    Merge slight left

    219.5 mi · 3 hr 57 min

  9. 9

    Take the exit slight right toward FL 70: Okeechobee, Fort Pierce

    2396 ft · 58 sec

  10. 10

    Keep slight right to continue on FL 70 West: Okeechobee

    150 m · 12 sec

  11. 11

    Merge slight left onto Okeechobee Road

    2745 ft · 58 sec · Okeechobee Road

  12. 12

    Take the ramp left

    1090 ft · 35 sec

  13. 13

    Keep slight left to continue on Miami, Florida's Turnpike South

    2588 ft · 1 min

  14. 14

    Merge slight left onto Florida's Turnpike

    105.2 mi · 1 hr 56 min · Florida's Turnpike

  15. 15

    Take the exit slight right toward Florida's Turnpike Toll South, Homestead

    1197 ft · 20 sec · Homestead Extension of Florida's Turnpike

  16. 16

    Keep slight left to continue on Homestead Extension of Florida's Turnpike

    46.9 mi · 54 min · Homestead Extension of Florida's Turnpike

  17. 17

    Keep slight left

    2930 ft · 1 min

  18. 18

    Merge slight left onto Dixie Highway

    19.2 mi · 27 min · Dixie Highway

  19. 19

    Continue on Overseas Highway

    86.7 mi · 2 hr 16 min · Overseas Highway

  20. 20

    Turn right onto Blimp Road

    1829 ft · 52 sec · Blimp Road

  21. 21

    Arrive at your destination

    0 m · 1 sec · Blimp Road

Car Route Details

A richer read on the saved driving route between Jacksonville and Cudjoe Key.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
21 steps
8 turns on the saved route
Ramps & Exits
8
4 merges, 4 ramps or exits
Navigation Density
4.3 / 100 mi
Decision points by distance
Main Roads
I 95 South
221 mi · 46%
Florida's Turnpike
105 mi · 22%
Overseas Highway
86.7 mi · 18%
Homestead Extension of Florida's Turnpike
47.6 mi · 10%
Dixie Highway
19.2 mi · 4%
Okeechobee Road
0.73 mi
Longest Stretch

I 95 South

Merge slight left

219 mi · 03h 57m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
09h 42m
Overnight route
Same-Day Return
19h 26m
Round-trip wheel time
Road vs Air
+91.6 mi
391.2 mi direct line
Halfway Stop
Stuart
04h 51m from Jacksonville
Leave By
4:34 PM EDT
Overnight-style route
Weather Watch

Sunny leaving Jacksonville and Slight Chance Rain Showers near Cudjoe Key.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Jacksonville to Cudjoe Key?

The road trip is about 482.8 miles (777 km) and usually takes 09h 42m 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?

Stuart is a useful midpoint, sitting about 241.9 miles from Jacksonville and 240.9 miles from Cudjoe Key.

How much longer is the road route than the straight-line distance?

The direct path is about 391.2 miles (629.6 km), while the road route adds roughly 91.6 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 EDT. 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 $70.68 one way or $141.36 round trip. Estimated CO2 is about 151.4 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Jacksonville and Slight Chance Rain Showers near Cudjoe Key.

Stop Ideas Near Stuart

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Stuart, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Stuart.

RAIL

West Palm Beach

57 mi away
201 South Tamarind Ave
RAIL

Okeechobee

57 mi away
801 North Parrott Avenue
RAIL

Delray Beach

84 mi away
345 South Congress Ave
RAIL

Deerfield Beach

99 mi away
1300 W. Hillsboro Blvd

Flight Path Map

This map shows the direct air route between Jacksonville and Cudjoe Key. Straight-line distance: 391.23 mi (629.63 km).

Jacksonville

#1 Jacksonville

The thirteenth most populous city in the United States and the center of the Jacksonville metropolitan area.

Population920,570
Coordinates30.3321800, -81.6556500
Altitude5
CountryUnited States
Cudjoe Key

#2 Cudjoe Key

Census designated place

Population1,763
Coordinates24.6715300, -81.4984200
Altitude0
CountryUnited States
Start: Jacksonville (-81.65565, 30.33218)
End: Cudjoe Key (-81.49842, 24.67153)

Estimated Travel Time

Distance: 777 km by road

SpeedTime
30 mph (48.3 km/h)16h 05m
40 mph (64.37 km/h)12h 04m
50 mph (80.47 km/h)09h 39m
60 mph (96.56 km/h)08h 02m
70 mph (112.65 km/h)06h 53m
80 mph (129 km/h)06h 01m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
17.04 gal
64.49 L · about $70.68
Round trip
$141.36
34.08 gal · 128.98 L
Estimated CO2
151.4 kg one way
Round trip: 302.9 kg / 668 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.15 $70.68 $141.36
Mid-grade $4.60 $78.32 $156.63
Premium $4.90 $83.43 $166.86
Diesel $4.35 $74.12 $148.25

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 · Apr 23, 2026

There is no time difference between Jacksonville and Cudjoe Key. The current time is 17:22:47.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.