How far is Cascade Locks, OR from San Diego, CA?
The driving distance from Cascade Locks, OR to San Diego, CA is about 1124.9 miles (1810.4 km), with a travel time of about 21h 21m by car.
- The straight-line flight distance is about 929.7 miles (1496.2 km).
- For a round trip, plan for roughly 42h 42m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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.
This drive is better planned with a longer stop or an overnight stay.
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 21h 21m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Colusa County, California, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Cascade Locks and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cascade Locks and San Diego.
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1
Start on Wa-Na-Pa Street
1.2 km · 2 min · Wa-Na-Pa Street
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2
Take the ramp straight toward Portland
2753 ft · 42 sec
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3
Merge slight left onto Columbia River Highway
33.7 mi · 40 min · Columbia River Highway
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4
Continue on Banfield Freeway
6.8 mi · 9 min · Banfield Freeway
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5
Keep slight left to continue on I 5 South: Salem, OMSI, City Center
1906 ft · 32 sec
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6
Keep slight left to continue on I 5 South: Beaverton, Salem
80 m · 5 sec
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7
Merge slight left
416.3 mi · 8 hr 8 min
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8
Keep slight left to continue on Cascade Wonderland Highway
35.5 mi · 39 min · Cascade Wonderland Highway
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9
Continue on Westside Freeway
93 mi · 1 hr 40 min · Westside Freeway
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10
Keep slight left to continue on Westside Freeway
15.7 mi · 17 min · Westside Freeway
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11
Keep slight left to continue on Westside Freeway
78.8 mi · 1 hr 28 min · Westside Freeway
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12
Keep slight left to continue on Westside Freeway
1.2 km · 49 sec · Westside Freeway
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13
Keep slight left to continue on Westside Freeway
236.6 mi · 4 hr 14 min · Westside Freeway
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14
Keep slight right
58.4 mi · 1 hr 7 min
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15
Keep slight left to continue on Golden State Freeway
4.1 mi · 5 min · Golden State Freeway
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16
Keep slight right to continue on I 405 South
1354 ft · 18 sec
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17
Keep slight left
24.7 mi · 29 min
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18
Keep slight left to continue on Golden State Freeway
1.3 mi · 2 min · Golden State Freeway
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19
Merge slight left onto Santa Ana Freeway
25.7 mi · 30 min · Santa Ana Freeway
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20
Keep slight right to continue on Santa Ana Freeway
1241 ft · 16 sec · Santa Ana Freeway
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21
Take the exit slight right toward Broadway, Main Street, Santa Ana
1.3 km · 57 sec
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22
Keep slight left
788 ft · 10 sec
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23
Keep slight left to continue on I 5 South
981 ft · 13 sec
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24
Merge slight left onto Santa Ana Freeway
1.3 km · 54 sec · Santa Ana Freeway
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25
Keep slight right to continue on Santa Ana Freeway
1.2 km · 52 sec · Santa Ana Freeway
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26
Keep slight right to continue on Santa Ana Freeway
1.2 mi · 1 min · Santa Ana Freeway
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27
Take the exit slight right toward Newport Avenue
1.2 km · 1 min
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28
Turn right onto Newport Avenue
1943 ft · 44 sec · Newport Avenue
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29
Turn left onto Walnut Avenue
2.2 mi · 4 min · Walnut Avenue
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30
Turn left onto Jamboree Road
2595 ft · 38 sec · Jamboree Road
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31
Take the exit slight right toward I 5 South
1479 ft · 21 sec
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32
Merge slight left onto Santa Ana Freeway
5.5 mi · 6 min · Santa Ana Freeway
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33
Keep slight left to continue on Santa Ana Freeway
1.3 km · 56 sec · Santa Ana Freeway
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34
Merge slight right onto San Diego Freeway
76.5 mi · 1 hr 29 min · San Diego Freeway
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35
Take the exit slight right toward Front Street, Civic Center, 2nd Avenue
1164 ft · 28 sec
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36
Keep slight right to continue on Front Street, Civic Center
592 ft · 15 sec
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37
Continue on Front Street
2662 ft · 2 min · Front Street
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38
Arrive at your destination
0 m · 1 sec · Front Street
Car Route Details
A richer read on the saved driving route between Cascade Locks and San Diego.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 5 South
Merge slight left
416 mi · 08h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Mostly Sunny leaving Cascade Locks and Sunny near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cascade Locks to San Diego?
The road trip is about 1124.9 miles (1810.4 km) and usually takes 21h 21m 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?
Williams is a useful midpoint, sitting about 559.7 miles from Cascade Locks and 565.3 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 929.7 miles (1496.2 km), while the road route adds roughly 195.2 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 $198.54 one way or $397.08 round trip. Estimated CO2 is about 352.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Cascade Locks and Sunny near San Diego.
Stop Ideas Near Williams
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Northview Park
Sinclair
City of Colusa
Alsco-Geyer Ace Hardware
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Williams.
Marysville, California
Oroville, California
Chico station
Davis station
Flight Path Map
This map shows the direct air route between Cascade Locks and San Diego. Straight-line distance: 929.68 mi (1496.18 km).
#1 Cascade Locks
City in Oregon, USA
| Population | 1,155 |
| Coordinates | 45.6698400, -121.8906400 |
| Altitude | 46 |
| Country | United States |
#2 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 |
End: San Diego (-117.16472, 32.71571)
Estimated Travel Time
Distance: 1810 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 37h 28m |
| 40 mph (64.37 km/h) | 28h 07m |
| 50 mph (80.47 km/h) | 22h 29m |
| 60 mph (96.56 km/h) | 18h 44m |
| 70 mph (112.65 km/h) | 16h 04m |
| 80 mph (129 km/h) | 14h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.00 | $198.54 | $397.08 |
| Mid-grade | $5.25 | $208.39 | $416.77 |
| Premium | $5.54 | $219.86 | $439.72 |
| Diesel | $6.75 | $267.86 | $535.71 |
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 Oregon · Oct 13, 2026