The drive from Signal Hill, CA to San Diego, CA covers 105.1 miles and takes about 2h 5m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on San Diego Freeway, San Joaquin Hills Transportation Corridor, I 405 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 73.9 miles on San Diego Freeway.
At current regular gas prices, budget about $24.16 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
52.5 miles from Signal Hill, CA
A natural place for your longest stop of the day
, about 1h 2m into the drive
.
From balmy beaches with a laid-back attitude to a gleaming modern image, San Diego offers much for the tourist to enjoy. Situated on the Southern California seacoast, San Diego is the second largest city in the state, with 1.4 million residents (2020), and has long attracted travelers for its ideal climate, miles of beaches, and location on the Mexican border right across from Tijuana.
But there's much more here than surfer culture and a quick hop across the border. A rich maritime and military heritage lives on in San Diego, which is home to the Pacific Fleet of the United States Navy. The city has also become known for its part in the wildlife conservation movement, owing to the presence of the world-renowned San Diego Zoo and Safari Park and the Scripps Institution of Oceanography. Natural scenery abounds from rocky tidepools and seaside cliffs to desert hills and canyons inland.
Top landmarks
•Balboa Park — historic park in San Diego, California
•Cabrillo National Monument — National Monument of the United States and historic district
Doable as a same-day drive at 2h 5m. Total distance: 105.1 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 5m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (84%). Some complex stretches to watch for.
Drive Character
This is a 2h 5m highway drive covering 105.1 miles, with most of the trip on San Diego Freeway and San Joaquin Hills Transportation Corridor. The longest continuous stretch is about 73.9 miles on San Diego Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 18 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
San Diego Freeway is the longest continuous segment at about 73.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on San Diego Freeway and San Joaquin Hills Transportation Corridor. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 18.5 miles in near CA 73 / Corona Del Mar Freeway.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 105.1 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 18.5 miles (CA 73 / Corona Del Mar Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 32.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.4 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 14 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
18.5 mi into trip|~23m in|CA 73 / Corona Del Mar Freeway
Keep slight right at fork onto CA 73 / Corona Del Mar Freeway toward CA 73 South: San Diego
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 10
Toward CA 73 South: San Diego
8
32.9 mi into trip|~39m in
Take the exit toward La Paz Road, Moulton Parkway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 3
Toward La Paz Road, Moulton Parkway
7
33.4 mi into trip|~40m in
Keep slight left at fork toward CA 73 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward CA 73 South
8
104.3 mi into trip|~2h 3m in
Take the exit toward Front Street, Civic Center, 2nd Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 17
Toward Front Street, Civic Center, 2nd Avenue
7
104.5 mi into trip|~2h 3m in
Keep slight right at fork toward Front Street, Civic Center
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward Front Street, Civic Center
Main Roads
Road
Distance
Duration
San Diego Freeway
73.9 mi
1h 26m
San Joaquin Hills Transportation Corridor
12.8 mi
14m
I 405
10.3 mi
11m
Corona Del Mar Freeway
4 mi
4m
East Willow Street
1.8 mi
3m
Front Street
0.5 mi
1m
Longest stretch:
San Diego Freeway
— 73.9 mi, about 1h 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Signal Hill, CA and San Diego, CA.
1
Start on East Willow Street
0.1 mi·19 sec·East Willow Street
2
Continue on East Willow Street
1.7 mi·3 min·East Willow Street
Use the left lane.
3
Take the ramp
0.2 mi·33 sec
Toward I 405 SouthUse the straight / slight right lanes.
4
Merge onto I 405
3.7 mi·4 min·San Diego Freeway
Use the straight / slight right lanes.
5
Keep slight right at fork onto I 405
2.3 mi·2 min·San Diego Freeway
Use the straight / slight right lanes.
6
Keep slight left at fork onto I 405
0.2 mi·11 sec·San Diego Freeway
Use the straight / right lanes.
7
Keep slight left at fork onto I 405
10 mi·11 min·I 405
Use the straight / slight right lanes.
8
Keep slight right at fork onto CA 73
4.0 mi·4 min·Corona Del Mar Freeway
Exit 10Toward CA 73 South: San DiegoUse the straight / slight right lanes.
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Cabrillo National Monument
National Monument
In 1542, Juan Rodriguez Cabrillo climbed out of his boat and onto shore, becoming the first European to set foot on what is now the West Coast of the United States. Cabrillo National Monument not only...
5 mi from route
~13 min detour
$20
near mile 105.1
Park Closure: Park Auditorium Closed Until Further Notice
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $11 in charging
· 0 stops
· 68% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
31.5
0
$11.04
$5.04
Efficient EV
26.3
0
$9.20
$4.20
EV Truck/SUV
42
0
$14.71
$6.73
Gas CO2
37 kg
EV CO2
12 kg (68% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 18, 2026
Origin
Signal Hill, CA
Late night
in Signal Hill on Saturday
Local time
4:12 AM
PDT
Current temp
53°F
Mostly Clear
ENE 0 to 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 17 at 7:10PM PDT until April 18 at 8:00AM PDT by NWS Eureka CA
Destination
San Diego, CA
Late night
in San Diego on Saturday
Local time
4:12 AM
PDT
Current temp
56°F
Partly Cloudy
SW 0 to 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 17 at 7:10PM PDT until April 18 at 8:00AM PDT by NWS Eureka CA
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 5m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Signal Hill, CA to San Diego, CA covers 105.1 miles and takes about 2h 5m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are San Diego Freeway, San Joaquin Hills Transportation Corridor, I 405. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 52.5 miles from Signal Hill, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $24.16 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a demanding drive. With 14 significant decision points across 105.1 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 18.5 miles (CA 73 / Corona Del Mar Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 32.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.4 miles: Highway fork - watch signs carefully. Lane positioning matters here.
The route from Signal Hill, CA to San Diego, CA does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
