How far is Port Saint Lucie, FL from Siesta Key, FL?

The driving distance from Port Saint Lucie, FL to Siesta Key, FL is about 149.8 miles (241.1 km), with a travel time of about 03h 25m by car.

  • The straight-line flight distance is about 134.8 miles (216.9 km).
  • For a round trip, plan for roughly 06h 51m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 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
149.82 mi
03h 25m
Flight
134.79 mi
216.93 km direct

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

Learn Distance

Choose another destination from Port Saint Lucie.

Flight Distance

Direct air line
134.79 mi
Kilometers
216.93 km
Flight Time
00h 16m

Driving Distance

Road route
149.82 mi
Kilometers
241.12 km
Drive Time
03h 25m

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 03h 25m.

Arrival Snapshot
Arrive in Siesta Key
Fri, May 15, 4:40 AM EDT
Return by in Port Saint Lucie
Fri, May 15, 8:06 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Port Saint Lucie
2026-05-15T01:14
Arrive Siesta Key
Fri, May 15, 4:40 AM EDT
Route Timing
03h 25m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
9:26 AM to 11:26 AM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
10:08 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Port Saint Lucie
9:00 PM EDT
Early departure recommended

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
Placid Lakes
FL

City in United States of America

From Port Saint Lucie
74.8 mi
01h 42m
To Siesta Key
75 mi
01h 42m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
88°F
Friday

Sunny

Starts
Fri, May 15 6:00 AM EDT
Wind
0 to 10 mph NNE
Destination
Siesta Key Weather
FL
Live fallback forecast
73°F
Overnight
Using South Sarasota as the closest live forecast in the Sarasota County weather hub.

Mostly Clear

Starts
Fri, May 15 12:00 AM EDT
Wind
7 to 10 mph N

Driving Route Map

The map below follows the saved road route between Port Saint Lucie and Siesta Key.

Turn-by-Turn Driving Directions

Step-by-step road directions between Port Saint Lucie and Siesta Key.

  1. 1

    Start on Southwest Carter Avenue

    66 m · 15 sec · Southwest Carter Avenue

  2. 2

    Turn left onto Southeast Airoso Boulevard

    913 ft · 20 sec · Southeast Airoso Boulevard

  3. 3

    Turn left onto Crosstown Parkway

    4.1 mi · 8 min · Crosstown Parkway

  4. 4

    Take the ramp slight right toward I 95 North: Daytona Beach

    1775 ft · 43 sec

  5. 5

    Merge slight left

    4.9 mi · 5 min

  6. 6

    Take the exit slight right toward CR 712: Midway Road

    1956 ft · 48 sec

  7. 7

    Keep slight left to continue on CR 712: Midway Road

    124 m · 12 sec

  8. 8

    Turn straight onto West Midway Road

    4.9 mi · 9 min · West Midway Road

  9. 9

    Turn left onto Okeechobee Road

    21.1 mi · 25 min · Okeechobee Road

  10. 10

    Keep slight right

    67.3 mi · 1 hr 29 min

  11. 11

    Turn straight onto East Hickory Street

    2.6 mi · 5 min · East Hickory Street

  12. 12

    Turn left

    33.6 mi · 44 min

  13. 13

    Enter the roundabout and take exit 2 toward State Road 72

    32 m · 2 sec · State Road 72

  14. 14

    Exit the roundabout onto State Road 72

    1.3 mi · 2 min · State Road 72

  15. 15

    Continue on Clark Road

    156 m · 11 sec · Clark Road

  16. 16

    Enter the roundabout and take exit 2 toward Clark Road

    35 m · 2 sec · Clark Road

  17. 17

    Exit the roundabout onto Clark Road

    5.6 mi · 10 min · Clark Road

  18. 18

    Continue on Stickney Point Road

    1.9 mi · 3 min · Stickney Point Road

  19. 19

    Turn slight right onto CR 758

    95 m · 16 sec

  20. 20

    Turn straight onto Midnight Pass Road

    1.2 mi · 3 min · Midnight Pass Road

  21. 21

    Continue on Midnight Pass Road

    565 ft · 16 sec · Midnight Pass Road

  22. 22

    Turn right

    98 m · 24 sec

  23. 23

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Port Saint Lucie and Siesta Key.

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
23 steps
13 turns on the saved route
Ramps & Exits
7
1 merges, 6 ramps or exits
Navigation Density
15.4 / 100 mi
Decision points by distance
Main Roads
Okeechobee Road
88.3 mi · 59%
Clark Road
5.73 mi · 4%
I 95 North
5.28 mi · 4%
West Midway Road
4.88 mi · 3%
Crosstown Parkway
4.11 mi · 3%
East Hickory Street
2.62 mi · 2%
Longest Stretch

Okeechobee Road

Keep slight right

67.3 mi · 01h 29m

Route Summary

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

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
03h 25m
Long day trip
Same-Day Return
06h 52m
Round-trip wheel time
Road vs Air
+15 mi
134.8 mi direct line
Halfway Stop
Placid Lakes
01h 42m from Port Saint Lucie
Leave By
10:08 AM EDT
Early departure recommended
Weather Watch

Sunny leaving Port Saint Lucie and Mostly Clear near Siesta Key.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Port Saint Lucie to Siesta Key?

The road trip is about 149.8 miles (241.1 km) and usually takes 03h 25m in normal driving conditions.

Is this a same-day trip or an overnight route?

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Placid Lakes is a useful midpoint, sitting about 74.8 miles from Port Saint Lucie and 75 miles from Siesta Key.

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

The direct path is about 134.8 miles (216.9 km), while the road route adds roughly 15 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 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:08 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $21.94 one way or $43.89 round trip. Estimated CO2 is about 47 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Port Saint Lucie and Mostly Clear near Siesta Key.

Stop Ideas Near Placid Lakes

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

Mid-route Guidance
Local place coverage is thin around Placid Lakes, 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 Placid Lakes.

RAIL

Sebring

29 mi away
601 East Center St
RAIL

Okeechobee

57 mi away
801 North Parrott Avenue
BUS

Port Charlotte, Florida

69 mi away
909 King Highway
BUS

Fort Myers, Florida

78 mi away
6050 Plaza Drive

Flight Path Map

This map shows the direct air route between Port Saint Lucie and Siesta Key. Straight-line distance: 134.79 mi (216.93 km).

Port Saint Lucie

#1 Port Saint Lucie

The second most populous city in St.

Population209,715
Coordinates27.2939300, -80.3503300
Altitude5
CountryUnited States
Siesta Key

#2 Siesta Key

Census-designated place in Sarasota County, Florida

Population6,565
Coordinates27.2678500, -82.5452600
Altitude1
CountryUnited States
Start: Port Saint Lucie (-80.35033, 27.29393)
End: Siesta Key (-82.54526, 27.26785)

Estimated Travel Time

Distance: 241 km by road

SpeedTime
30 mph (48.3 km/h)04h 59m
40 mph (64.37 km/h)03h 44m
50 mph (80.47 km/h)02h 59m
60 mph (96.56 km/h)02h 29m
70 mph (112.65 km/h)02h 08m
80 mph (129 km/h)01h 52m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
5.29 gal
20.01 L · about $21.94
Round trip
$43.89
10.58 gal · 40.02 L
Estimated CO2
47 kg one way
Round trip: 94 kg / 207 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.15 $21.94 $43.89
Mid-grade $4.60 $24.31 $48.63
Premium $4.90 $25.90 $51.80
Diesel $4.35 $23.01 $46.02

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 · May 15, 2026

There is no time difference between Port Saint Lucie and Siesta Key. The current time is 01:14:42.

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.