How far is San Marcos, CA from Long Beach, CA?
The driving distance from San Marcos, CA to Long Beach, CA is about 83.8 miles (134.8 km), with a travel time of about 01h 27m by car.
- The straight-line flight distance is about 73 miles (117.5 km).
- For a round trip, plan for roughly 02h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
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 01h 27m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Orange County, California, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between San Marcos and Long Beach.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Marcos and Long Beach.
-
1
Start on Pico Avenue
922 ft · 38 sec · Pico Avenue
-
2
Turn right onto West San Marcos Boulevard
1 km · 1 min · West San Marcos Boulevard
-
3
Take the ramp slight right toward CA 78 West
1661 ft · 43 sec
-
4
Merge slight left onto Ronald Packard Parkway
11.6 mi · 13 min · Ronald Packard Parkway
-
5
Take the exit slight right toward I 5 North: Los Angeles
1669 ft · 41 sec
-
6
Merge slight left onto San Diego Freeway
15.2 mi · 18 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 right to continue on San Joaquin Hills Transportation Corridor
14.1 mi · 16 min · San Joaquin Hills Transportation Corridor
-
9
Continue on Corona Del Mar Freeway
4 mi · 5 min · Corona Del Mar Freeway
-
10
Merge slight left onto San Diego Freeway
9.6 mi · 11 min · San Diego Freeway
-
11
Keep slight left
2.7 mi · 3 min
-
12
Take the exit slight right toward CA 22 West: Long Beach
2.5 mi · 4 min
-
13
Keep slight left to continue on East 7th Street
2.3 mi · 6 min · East 7th Street
-
14
Turn left onto Junipero Avenue
2523 ft · 1 min · Junipero Avenue
-
15
Turn right
51 m · 5 sec
-
16
Turn straight onto East 3rd Street
1.2 km · 2 min · East 3rd Street
-
17
Turn left onto Cerritos Avenue
1649 ft · 1 min · Cerritos Avenue
-
18
At the end of the road, turn right onto East Ocean Boulevard
3093 ft · 2 min · East Ocean Boulevard
-
19
Arrive at your destination
0 m · 1 sec · East Ocean Boulevard
Car Route Details
A richer read on the saved driving route between San Marcos and Long Beach.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
San Diego Freeway
Keep slight right to continue on San Diego Freeway
18.1 mi · 00h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving San Marcos and Mostly Sunny near Long Beach.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Marcos to Long Beach?
The road trip is about 83.8 miles (134.8 km) and usually takes 01h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
San Juan Capistrano is a useful midpoint, sitting about 41.8 miles from San Marcos and 41.9 miles from Long Beach.
How much longer is the road route than the straight-line distance?
The direct path is about 73 miles (117.5 km), while the road route adds roughly 10.8 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 3:36 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.08 one way or $34.15 round trip. Estimated CO2 is about 26.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around San Marcos and Mostly Sunny near Long Beach.
Stop Ideas Near San Juan Capistrano
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Blue Lantern Inn, A Four Sisters Inn
The Ritz-Carlton, Laguna Niguel
City of Lake Forest
Laguna Niguel City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to San Juan Capistrano.
San Juan Capistrano
San Clemente Pier station
Irvine Transportation Center
Santa Ana Regional Transportation Center
Flight Path Map
This map shows the direct air route between San Marcos and Long Beach. Straight-line distance: 73.04 mi (117.54 km).
#1 San Marcos
The second most populous city in San Diego County, California.
| Population | 97,477 |
| Coordinates | 33.1433700, -117.1661400 |
| Altitude | 177 |
| Country | United States |
#2 Long Beach
The second most populous city in California, Long Beach is a major center for business, manufacturing, and tourism.
| Population | 454,681 |
| Coordinates | 33.7669600, -118.1892300 |
| Altitude | 9 |
| Country | United States |
End: E Ocean Boulevard (-118.189236, 33.766924)
Estimated Travel Time
Distance: 135 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 47m |
| 40 mph (64.37 km/h) | 02h 05m |
| 50 mph (80.47 km/h) | 01h 40m |
| 60 mph (96.56 km/h) | 01h 23m |
| 70 mph (112.65 km/h) | 01h 11m |
| 80 mph (129 km/h) | 01h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $17.08 | $34.15 |
| Mid-grade | $6.07 | $17.96 | $35.91 |
| Premium | $6.24 | $18.48 | $36.96 |
| Diesel | $7.57 | $22.40 | $44.80 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.