How far is Modesto, CA from Fort Casey, WA?
The driving distance from Modesto, CA to Fort Casey, WA is about 868.5 miles (1397.7 km), with a travel time of about 17h 31m by car.
- The straight-line flight distance is about 732.2 miles (1178.3 km).
- For a round trip, plan for roughly 35h 02m 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 17h 31m.
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 Oregon, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Modesto and Fort Casey.
Turn-by-Turn Driving Directions
Step-by-step road directions between Modesto and Fort Casey.
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1
Start on 11th Street
25 m · 11 sec · 11th Street
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2
Turn left onto H Street
1895 ft · 1 min · H Street
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3
Turn right onto 6th Street
148 m · 16 sec · 6th Street
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4
Take the ramp straight
941 ft · 23 sec
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5
Merge slight left
27 mi · 31 min
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6
Keep slight left
44.1 mi · 51 min
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7
Take the exit slight right toward US 50 West, US 50 East: San Francisco, South Lake Tahoe
2549 ft · 34 sec
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8
Keep slight left to continue on US 50 West: San Francisco
1.3 km · 1 min
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9
Continue on Capital City Freeway
1.2 mi · 1 min · Capital City Freeway
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10
Take the exit slight right toward I 5: Los Angeles, Redding
803 ft · 15 sec
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11
Keep slight right to continue on I 5 North: Redding
1407 ft · 30 sec
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12
Keep slight left to continue on I 5: Redding
1615 ft · 39 sec
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13
Merge slight left onto Westside Freeway
6.7 mi · 8 min · Westside Freeway
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14
Keep slight left to continue on Westside Freeway
120.9 mi · 2 hr 10 min · Westside Freeway
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15
Continue on Cascade Wonderland Highway
450.1 mi · 8 hr 44 min · Cascade Wonderland Highway
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16
Keep slight right to continue on Seattle
112.8 mi · 2 hr 8 min
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17
Take the exit slight right toward US 101 North: Aberdeen, Port Angeles
2444 ft · 59 sec
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18
Continue straight
5.5 mi · 7 min
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19
Keep slight right to continue on US 101 North: Shelton, Port Angeles
78 mi · 1 hr 46 min
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20
Take the exit right toward State Highway 20
120 m · 11 sec · State Highway 20
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21
Turn slight right onto State Route 20
7.7 mi · 12 min · State Route 20
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22
Continue on State Route 20
2.1 mi · 4 min · State Route 20
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23
Continue on West Sims Way
2193 ft · 46 sec · West Sims Way
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24
Enter the roundabout and take exit 2 toward West Sims Way
30 m · 2 sec · West Sims Way
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25
Exit the roundabout onto West Sims Way
1436 ft · 41 sec · West Sims Way
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26
Enter the roundabout and take exit 2 toward West Sims Way
31 m · 2 sec · West Sims Way
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27
Exit the roundabout onto West Sims Way
1.5 mi · 4 min · West Sims Way
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28
Enter the roundabout and take exit 2 toward East Sims Way
27 m · 2 sec · East Sims Way
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29
Exit the roundabout onto East Sims Way
1017 ft · 27 sec · East Sims Way
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30
Continue on Water Street
1598 ft · 52 sec · Water Street
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31
Turn right onto Ferry Dock
29 m · 3 sec · Ferry Dock
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32
Keep slight right to continue on Ferry Dock
147 m · 10 sec · Ferry Dock
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33
At the end of the road, turn right onto Port Townsend Slip 2
48 m · 3 sec · Port Townsend Slip 2
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34
Continue on Port Townsend-Coupeville Ferry
5.8 mi · 35 min · Port Townsend-Coupeville Ferry
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35
Continue on State Route 20
73 m · 11 sec · State Route 20
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36
At the end of the road, turn left onto Engle Road
2342 ft · 1 min · Engle Road
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37
Turn right
25 m · 6 sec
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38
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Modesto and Fort Casey.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Cascade Wonderland Highway
Continue on Cascade Wonderland Highway
450 mi · 08h 44m
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.
Sunny leaving Modesto and Mostly Cloudy near Fort Casey.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Modesto to Fort Casey?
The road trip is about 868.5 miles (1397.7 km) and usually takes 17h 31m 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?
Glendale is a useful midpoint, sitting about 431.2 miles from Modesto and 437.3 miles from Fort Casey.
How much longer is the road route than the straight-line distance?
The direct path is about 732.2 miles (1178.3 km), while the road route adds roughly 136.3 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 $191.90 one way or $383.80 round trip. Estimated CO2 is about 272.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Modesto and Mostly Cloudy near Fort Casey.
Stop Ideas Near Glendale
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Glendale.
Grants Pass, OR
Gold Hill, OR
White City, Oregon
Medford, Oregon
Flight Path Map
This map shows the direct air route between Modesto and Fort Casey. Straight-line distance: 732.13 mi (1178.25 km).
#1 Modesto
The third most populous city in Stanislaus County, California.
| Population | 215,666 |
| Coordinates | 37.6391000, -120.9968800 |
| Altitude | 28 |
| Country | United States |
#2 Fort Casey
Situated on the western shore of Whidbey Island in Island County at an elevation of 10 feet, this site occupies a strategic position overlooking Admiralty Inlet at the entrance to Puget Sound.
| Population | 0 |
| Coordinates | 48.1642600, -122.6787800 |
| Altitude | 3 |
| Country | United States |
End: Fort Casey (-122.67878, 48.16426)
Estimated Travel Time
Distance: 1398 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 28h 56m |
| 40 mph (64.37 km/h) | 21h 42m |
| 50 mph (80.47 km/h) | 17h 22m |
| 60 mph (96.56 km/h) | 14h 28m |
| 70 mph (112.65 km/h) | 12h 24m |
| 80 mph (129 km/h) | 10h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $191.90 | $383.80 |
| Mid-grade | $6.50 | $199.19 | $398.39 |
| Premium | $6.69 | $205.02 | $410.04 |
| Diesel | $8.41 | $257.86 | $515.72 |
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 · Oct 15, 2026