How far is San Diego, CA from Monte Rio, CA?

The driving distance from San Diego, CA to Monte Rio, CA is about 567.2 miles (912.8 km), with a travel time of about 10h 52m by car.

The straight-line flight distance is about 515.2 miles (829.1 km).
For a round trip, plan for roughly 21h 45m of driving time before adding stops, traffic, or weather delays.
A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.

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

567.21 mi

10h 52m

Flight

515.15 mi

829.06 km direct

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

Flight Distance

Direct air line

515.15 mi

Kilometers

829.06 km

Flight Time

01h 02m

Driving Distance

Road route

567.21 mi

Kilometers

912.83 km

Drive Time

10h 52m

Gas Cost Calculator

$/gallon

MPG

Miles

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Departure Time

Drive time stays fixed at 10h 52m.

Arrival Snapshot

Arrive in Monte Rio

Tue, May 5, 11:08 PM PDT

Return by in San Diego

Wed, May 6, 10:01 AM PDT

Useful when you're deciding between a quick errand, a day trip, or a longer stop.

Leave San Diego

2026-05-05T12:16

Arrive Monte Rio

Tue, May 5, 11:08 PM PDT

Route Timing

10h 52m

One way by road

Best Departure Window

6:00 AM to 7:30 AM PDT

Treat this as a longer travel day

Arrive between

4:53 PM to 6:23 PM PDT

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

Leave by

2:14 PM PDT

Keeps a same-day return open with about 08h 00m at the destination.

Back in San Diego

8:00 PM PDT

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

Kettleman City

Census-designated place in Kings County, California

From San Diego

283.7 mi

05h 26m

To Monte Rio

283.5 mi

05h 26m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin

San Diego Weather

67°F

Tuesday

Chance Rain Showers

Starts

Tue, May 5 6:00 AM PDT

Wind

5 to 15 mph W

Destination

Monte Rio Weather

Live fallback forecast

64°F

Tuesday

Using Occidental as the closest live forecast in the Sonoma County weather hub.

Mostly Sunny

Starts

Tue, May 5 6:00 AM PDT

Wind

6 to 10 mph W

Driving Route Map

The map below follows the saved road route between San Diego and Monte Rio.

Turn-by-Turn Driving Directions

Step-by-step road directions between San Diego and Monte Rio.

1

Start on Front Street

8 m · 6 sec · Front Street
2

Turn left onto West Broadway

88 m · 12 sec · West Broadway
3

Turn left onto 1st Avenue

3072 ft · 1 min · 1st Avenue
4

Take the ramp left toward I 5 North: Los Angeles

1017 ft · 25 sec
5

Merge slight left onto San Diego Freeway

13.5 mi · 16 min · San Diego Freeway
6

Keep slight left to continue on San Diego Freeway

36.3 mi · 43 min · San Diego Freeway
7

Keep slight right to continue on San Diego Freeway

18.1 mi · 21 min · San Diego Freeway
8

Keep slight left to continue on San Diego Freeway

7.4 mi · 9 min · San Diego Freeway
9

Keep slight right to continue on Bake Parkway

1.6 mi · 2 min
10

Keep slight right

6 mi · 7 min
11

Take the exit slight right toward Jamboree Road

1266 ft · 17 sec
12

Continue straight

527 ft · 11 sec
13

Turn right onto Jamboree Road

760 ft · 18 sec · Jamboree Road
14

Turn left onto El Camino Real

2.2 mi · 5 min · El Camino Real
15

Turn left onto Newport Avenue

109 m · 14 sec · Newport Avenue
16

Take the ramp right toward I 5 North: Los Angeles

1127 ft · 17 sec
17

Merge slight left onto Santa Ana Freeway

1.3 mi · 1 min · Santa Ana Freeway
18

Keep slight right to continue on Santa Ana Freeway

1.7 mi · 2 min · Santa Ana Freeway
19

Keep slight right to continue on Santa Ana Freeway

9.4 mi · 11 min · Santa Ana Freeway
20

Keep slight right to continue on Santa Ana Freeway

18 mi · 21 min · Santa Ana Freeway
21

Keep slight right to continue on Golden State Freeway

25.5 mi · 30 min · Golden State Freeway
22

Keep slight left to continue on Golden State Freeway

2.2 mi · 3 min · Golden State Freeway
23

Keep slight right to continue on I 5 Truck North, CA 14 Truck

1.5 mi · 2 min
24

Keep slight left

36.1 mi · 42 min
25

Keep slight left to continue on Golden State Freeway

22.3 mi · 25 min · Golden State Freeway
26

Keep slight right to continue on Westside Freeway

225.6 mi · 4 hr 2 min · Westside Freeway
27

Keep slight left to continue on William Elton Brown Freeway

15.9 mi · 17 min · William Elton Brown Freeway
28

Keep slight right to continue on William Elton Brown Freeway

1.1 mi · 1 min · William Elton Brown Freeway
29

Merge slight left onto Arthur H. Breed Junior Freeway

18 mi · 21 min · Arthur H. Breed Junior Freeway
30

Keep slight right to continue on Arthur H. Breed Junior Freeway

11.6 mi · 13 min · Arthur H. Breed Junior Freeway
31

Keep slight right to continue on MacArthur Freeway

8.3 mi · 10 min · MacArthur Freeway
32

Keep slight left to continue on MacArthur Freeway

8.3 mi · 10 min · MacArthur Freeway
33

Continue on Eastshore Freeway

3.3 mi · 4 min · Eastshore Freeway
34

Keep slight right to continue on John T. Knox Freeway

12.9 mi · 17 min · John T. Knox Freeway
35

Keep slight left to continue on US 101 North: San Rafeal

1.1 km · 54 sec
36

Merge slight left onto Redwood Highway

29.7 mi · 35 min · Redwood Highway
37

Take the exit slight right toward CA 116 West: Sebastopol, Downtown Cotati

1508 ft · 44 sec
38

Continue on Gravenstein Highway

7.7 mi · 12 min · Gravenstein Highway
39

Continue on Petaluma Avenue

1.1 km · 1 min · Petaluma Avenue
40

Turn left onto McKinley Avenue

133 m · 11 sec · McKinley Avenue
41

Turn right onto North Main Street

885 ft · 17 sec · North Main Street
42

Turn slight left onto Healdsburg Avenue

2865 ft · 48 sec · Healdsburg Avenue
43

Continue on Gravenstein Highway North

5.7 mi · 9 min · Gravenstein Highway North
44

Continue on Front Street

1725 ft · 29 sec · Front Street
45

Continue on Pocket Canyon Highway

7.1 mi · 11 min · Pocket Canyon Highway
46

Turn left onto Main Street

4.3 mi · 6 min · Main Street
47

Turn left onto Church Street

102 m · 9 sec · Church Street
48

Continue on Bohemian Highway

910 ft · 31 sec · Bohemian Highway
49

Turn left onto River Boulevard

39 m · 6 sec · River Boulevard
50

Arrive at your destination

0 m · 1 sec · River Boulevard

Car Route Details

A richer read on the saved driving route between San Diego and Monte Rio.

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

50 steps

11 turns on the saved route

Ramps & Exits

4 merges, 4 ramps or exits

Navigation Density

8.8 / 100 mi

Decision points by distance

Main Roads

Westside Freeway

226 mi · 40%

San Diego Freeway

75.2 mi · 13%

Golden State Freeway

50 mi · 9%

I 5 Truck North

37.7 mi · 7%

Santa Ana Freeway

30.4 mi · 5%

Redwood Highway

29.7 mi · 5%

Longest Stretch

Westside Freeway

Keep slight right to continue on Westside Freeway

226 mi · 04h 02m

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

10h 52m

Overnight route

Same-Day Return

21h 46m

Round-trip wheel time

Road vs Air

+52 mi

515.2 mi direct line

Halfway Stop

Kettleman City

05h 26m from San Diego

Leave By

2:14 PM PDT

Overnight-style route

Weather Watch

Chance Rain Showers leaving San Diego and Mostly Sunny near Monte Rio.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from San Diego to Monte Rio?

The road trip is about 567.2 miles (912.8 km) and usually takes 10h 52m 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?

Kettleman City is a useful midpoint, sitting about 283.7 miles from San Diego and 283.5 miles from Monte Rio.

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

The direct path is about 515.2 miles (829.1 km), while the road route adds roughly 52 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 PDT. 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 $115.44 one way or $230.88 round trip. Estimated CO2 is about 177.8 kg one way.

What should you check before leaving?

Before you leave, expect Chance Rain Showers around San Diego and Mostly Sunny near Monte Rio.

Stop Ideas Near Kettleman City

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

Mid-route Guidance

Local place coverage is thin around Kettleman City, 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 Kettleman City.

BUS

Kettleman City, California

3 mi away

3300 Hubert Way

BUS

Lemoore, California

34 mi away

300 E Street

RAIL

Corcoran station

38 mi away

1099 Otis Ave.

BUS

Lemoore (Naval Air Station), California

41 mi away

25th Ave and Highway 198

Flight Path Map

This map shows the direct air route between San Diego and Monte Rio. Straight-line distance: 515.15 mi (829.06 km).

#1 San Diego

The eighth most populous city in the United States and the center of the San Diego metropolitan area.

Population	1,422,420
Coordinates	32.7157100, -117.1647200
Altitude	20
Country	United States

#2 Monte Rio

Census-designated place in Sonoma County, California

Population	1,152
Coordinates	38.4654700, -123.0088900
Altitude	13
Country	United States

Start: San Diego (-117.16472, 32.71571)
End: Monte Rio (-123.00889, 38.46547)

Estimated Travel Time

Distance: 913 km by road

Speed	Time
30 mph (48.3 km/h)	18h 53m
40 mph (64.37 km/h)	14h 10m
50 mph (80.47 km/h)	11h 20m
60 mph (96.56 km/h)	09h 27m
70 mph (112.65 km/h)	08h 06m
80 mph (129 km/h)	07h 04m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel

20.01 gal

75.76 L · about $115.44

Round trip

$230.88

40.02 gal · 151.52 L

Estimated CO2

177.8 kg one way

Round trip: 355.7 kg / 784 lb CO2, using regular gasoline.

Fuel	$/gal	One way	Round trip
Regular gas	$5.77	$115.44	$230.88
Mid-grade	$6.07	$121.38	$242.76
Premium	$6.24	$124.92	$249.84
Diesel	$7.57	$151.42	$302.83

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 California · May 05, 2026

There is no time difference between San Diego and Monte Rio. The current time is 12:16:21.

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.