Traveling from San Diego to Monrovia covers 127.5 miles and typically takes about 2 hours and 33 minutes of drive time. Because this is a relatively short trip, it works perfectly as a single-day excursion, meaning you won't need to worry about booking an overnight stay. You can expect to spend approximately $30 on fuel to complete the journey. The route primarily navigates through the Pacific Coast region, keeping you within California for the duration of the trip. Since the drive is manageable in one go, you have plenty of flexibility to plan your departure around your personal schedule. Overall, it is a straightforward path that gets you from the San Diego area to Monrovia without requiring an extensive travel itinerary.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
63.7 miles from San Diego, CA
A natural place for your longest stop of the day
, about 1h 15m into the drive
.
Main Roads
Road
Distance
Duration
San Diego Freeway
75.2 mi
1h 27m
Santa Ana Freeway
21 mi
24m
San Gabriel River Freeway
15.6 mi
17m
I 5 Truck
7.6 mi
8m
El Camino Real
2.2 mi
4m
Foothill Freeway
1.6 mi
1m
South Myrtle Avenue
0.8 mi
1m
1st Avenue
0.6 mi
1m
Longest stretch:
San Diego Freeway
— 75.2 mi, about 1h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego, CA and Monrovia, CA.
1
Start on Front Street
26 ft·6 sec·Front Street
2
Turn left onto West Broadway
290 ft·12 sec·West Broadway
3
Turn left onto 1st Avenue
0.6 mi·1 min·1st Avenue
Use the left lane.
4
Take the ramp
0.2 mi·24 sec
Toward I 5 North: Los AngelesUse the left / straight lanes.
5
Merge onto I 5
13 mi·15 min·San Diego Freeway
Use the straight / slight right lanes.
6
Keep slight left at fork onto I 5
36 mi·43 min·San Diego Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 5
18 mi·20 min·San Diego Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 5
7.4 mi·8 min·San Diego Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 5 Truck
1.6 mi·1 min·I 5 Truck
Toward Bake ParkwayUse the straight / slight right lanes.
10
Keep slight right at fork onto I 5 Truck
6.0 mi·6 min·I 5 Truck
Use the slight right lane.
11
Take the exit
0.2 mi·16 sec
Exit 100Toward Jamboree RoadUse the slight right lane.
12
Continue on this road
527 ft·11 sec·this road
13
Turn right onto Jamboree Road
0.1 mi·18 sec·Jamboree Road
Use the left / right lanes.
14
Turn left onto El Camino Real
2.2 mi·4 min·El Camino Real
Use the left lane.
15
Turn left onto Newport Avenue
357 ft·13 sec·Newport Avenue
Use the left lane.
16
Take the ramp
0.2 mi·16 sec
Toward I 5 North: Los Angeles
17
Merge onto I 5
1.3 mi·1 min·Santa Ana Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto I 5
1.7 mi·1 min·Santa Ana Freeway
19
Keep slight right at fork onto I 5
9.4 mi·10 min·Santa Ana Freeway
Use the slight right lane.
20
Keep slight right at fork onto I 5
8.6 mi·9 min·Santa Ana Freeway
Use the straight / slight right lanes.
21
Take the exit
0.3 mi·36 sec
Toward I 605 South, I 605 North: San Gabriel River FreewayUse the slight right lane.
22
Keep slight right at fork
0.3 mi·38 sec
Toward I 605 NorthUse the straight / slight left lanes.
23
Merge onto I 605
16 mi·17 min·San Gabriel River Freeway
Use the straight / slight right lanes.
24
Take the exit
0.7 mi·52 sec
Exit 27BToward I 210 West: Pasadena, Foothill FreewayUse the slight left lane.
25
Merge onto I 210
1.6 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
26
Take the exit
0.3 mi·36 sec
Exit 34Toward Myrtle AvenueUse the slight right lane.
27
Continue on East Central Avenue
406 ft·14 sec·East Central Avenue
Use the straight lane.
28
Turn right onto South Myrtle Avenue
0.8 mi·1 min·South Myrtle Avenue
Use the right lane.
29
Turn right onto East Lime Avenue
0.1 mi·27 sec·East Lime Avenue
30
Arrive at destination
East Lime Avenue
Trip Plan
To make the most of your 2 hour and 33 minute trip, plan for at least one stop to break up the local driving. Since the route involves significant city navigation, try to avoid peak traffic hours to keep your travel time closer to the estimated duration. Keep an eye on your fuel gauge before you head out, as the $30 budget accounts for a standard trip, but local idling in heavy traffic can impact your efficiency. Because the route is quite short, you have the advantage of being able to depart whenever you feel ready. My best tip is to map out your specific turns through the initial city streets early, as the local nature of this drive means you will be making frequent directional changes right from the start.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 63.7 miles from San Diego, CA, or about 1h 15m into the drive.
The longest continuous stretch on this route runs about 75.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 28 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 63.7 miles or 1h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 5m
Traffic, exits, and arrival timing usually matter more near Monrovia, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving San Diego, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from San Diego, CA
This is one driving day of about 127.5 miles and 2h 33m.
Your first comfortable stop window is around 28 miles from San Diego, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on San Diego Freeway for about 75.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 27
5 decision points cluster between mile 76.1 and 123.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
76.1 mi into trip|~1h 29m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward Bake Parkway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Bake Parkway
7
83.7 mi into trip|~1h 38m in
Take the exit toward Jamboree Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 100
Toward Jamboree Road
7
84 mi into trip|~1h 39m in|Jamboree Road
Turn right onto Jamboree Road
Lane positioning matters here
Use the left / right lanes.
8
107.9 mi into trip|~2h 9m in
Keep slight right at fork toward I 605 North
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
Toward I 605 North
8
123.8 mi into trip|~2h 28m in
Take the exit toward I 210 West: Pasadena, Foothill Freeway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Exit 27B
Toward I 210 West: Pasadena, Foothill Freeway
Fuel & Cost
Regular Gas
$29.30 one way
$58.61 round trip
$5.84/gal25.4 MPG avg45 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$30.20
$60.40
premium
$6.18
$31.01
$62.01
diesel
$5.61
$28.15
$56.30
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$29
Meals
$25–$50
Total
$54–$79
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 44.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
38.3
0
$13.39
$6.12
Efficient EV
31.9
0
$11.16
$5.10
EV Truck/SUV
51
0
$17.85
$8.16
Gas CO2
45 kg
EV CO2
15 kg (67% 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
San Diego, CA
Morning
in San Diego on Sunday
Local time
10:11 AM
PDT
Current temp
56°F
Partly Cloudy
SW 0 to 10 mph0% chanceLive forecast
Destination
Monrovia, CA
Morning
in Monrovia on Sunday
Local time
10:11 AM
PDT
Current temp
52°F
Unavailable
Live forecast
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
4 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 33m 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.
More Details
What kind of drive is this?
Expect a turn-heavy local drive rather than a monotonous interstate cruise. You will begin by navigating city streets like West Broadway and 1st Avenue before transitioning onto I-5 North. With a highway share of 0%, the experience is defined by local maneuvers and frequent adjustments rather than long, uninterrupted stretches of open road. This profile makes the route feel more like a focused transit through urban environments than a high-speed highway dash. You should stay alert, as the constant turns require active driving throughout the entire 127.5-mile distance.
95% highway — fuel and pacing are the main things to plan.
30 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 75.2 mi on San Diego Freeway.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on San Diego Freeway and Santa Ana Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 76.1 miles in near I 5 Truck.
Driving Effort10/10
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 27 significant decision points across 127.5 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 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 83.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 84 miles (Jamboree Road): Lane positioning matters here.
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 33m. Total distance: 127.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 33m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (95%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 75.2 miles on San Diego Freeway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Monrovia, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 83.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 84 miles (Jamboree Road): Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Monrovia, CA before heading back.
