Irvine to Ukiah is 531.5 miles and takes about 9h 59m via Westside Freeway, with a fuel budget near $122 and recommended overnight travel. This long-distance drive traverses the Pacific Coast region of California, primarily utilizing major freeways. Given its 9h 59m duration and 531.5-mile length, it's best split over two days to avoid excessive fatigue. Expect to spend most of your time on the highway, covering 75% of the trip on main roads like the Westside Freeway and Golden State Freeway. This route is a solid option if you're looking to cover ground efficiently between Southern and Northern California.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
265.8 miles from Irvine, CA
A natural place for your longest stop of the day
, about 4h 55m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
Saint Helena Highway
51.2 mi
59m
Golden State Freeway
50 mi
57m
I 5 Truck
37.7 mi
43m
Redwood Highway
36.1 mi
44m
Santa Ana Freeway
29.6 mi
34m
Arthur H. Breed Junior Freeway
19.6 mi
22m
William Elton Brown Freeway
17 mi
18m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Traffic on I-5
Hour-of-day weekday pattern from 188 FHWA count stations on your route.
Peak
3 PM
~3,269 veh/hr typical
· worst 4,141
Quietest
2 AM
~544 veh/hr
Peak-to-quiet ratio
6×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 44 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Irvine, CA and Ukiah, CA.
1
Start on I 405
1.4 mi·1 min·San Diego Freeway
2
Take the exit
0.3 mi·21 sec
Exit 4Toward University Drive, Jeffrey Road
3
Turn left onto Jeffrey Road
0.2 mi·22 sec·Jeffrey Road
Use the left lane.
4
Take the ramp
0.2 mi·18 sec
Toward I 405 North: Los AngelesUse the straight / right lanes.
5
Merge onto I 405
4.2 mi·4 min·San Diego Freeway
Use the straight / slight right lanes.
6
Take the exit
0.2 mi·16 sec
Exit 9AToward CA 55 South, CA 55 North: FreewayUse the slight right lane.
7
Keep slight right at fork
0.5 mi·35 sec
Toward CA 55 NorthUse the slight left / slight right lanes.
8
Merge onto CA 55
3.2 mi·3 min·Costa Mesa Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto CA 55
0.4 mi·28 sec·Costa Mesa Freeway
Use the straight / slight left lanes.
10
Take the exit
0.7 mi·46 sec
Exit 10BToward I 5 North: Santa AnaUse the straight / slight right lanes.
11
Merge onto I 5
0.5 mi·36 sec·Santa Ana Freeway
Use the straight / slight right lanes.
12
Keep slight right at fork onto I 5
1.7 mi·1 min·Santa Ana Freeway
13
Keep slight right at fork onto I 5
9.4 mi·10 min·Santa Ana Freeway
Use the slight right lane.
14
Keep slight right at fork onto I 5
18 mi·20 min·Santa Ana Freeway
Use the straight / slight right lanes.
15
Keep slight right at fork onto I 5
25 mi·29 min·Golden State Freeway
Use the straight / slight right lanes.
16
Keep slight left at fork onto I 5
2.2 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
17
Keep slight right at fork onto I 5 Truck
1.5 mi·1 min·I 5 Truck
Exit 161AToward I 5 Truck North, CA 14 TruckUse the straight / slight right lanes.
18
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
19
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 5
226 mi·4 hr 1 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
21
Keep slight left at fork onto I 580
16 mi·17 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
22
Keep slight right at fork onto I 580 Bypass
1.1 mi·1 min·William Elton Brown Freeway
23
Merge onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
24
Keep slight right at fork onto I 580
1.6 mi·1 min·Arthur H. Breed Junior Freeway
25
Take the exit
0.2 mi·16 sec
Exit 44BToward I 680 South, I 680 North: San Jose, Sacramento, Concord, Walnut CreekUse the slight right lane.
26
Keep slight right at fork
0.3 mi·30 sec
Toward I 680 North: Walnut Creek, Concord, SacramentoUse the straight / slight right lanes.
27
Merge onto I 680
15 mi·17 min·Donald D Doyle Highway
Use the straight / slight right lanes.
28
Continue on I 680
5.0 mi·5 min·Senator Daniel E Boatwright Highway
Toward I 680, CA 24Use the straight / slight right lanes.
29
Keep slight left at fork onto I 680
6.0 mi·6 min·Senator Daniel E Boatwright Highway
Toward I 680 North: Martinez, SacramentoUse the straight / slight right lanes.
30
Keep slight left at fork onto I 680
243 ft·3 sec·Senator Daniel E Boatwright Highway
31
Keep slight right at fork onto I 680
1.8 mi·2 min·Senator Daniel E Boatwright Highway
Use the slight right lane.
32
Keep slight left at fork onto I 780
6.7 mi·7 min·I 780
Toward I 780: BeniciaUse the straight / slight right lanes.
33
Take the exit
0.3 mi·33 sec
Exit 1BToward I 80 East: SacramentoUse the slight right lane.
34
Keep slight left at fork
448 ft·11 sec
Toward I 80 East: SacramentoUse the slight left lane.
35
Merge onto I 80
2.7 mi·3 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
36
Take the exit
0.1 mi·18 sec
Exit 33Toward CA 37: Napa, Novato, Auto Mall, Columbus ParkwayUse the straight / slight right lanes.
37
Keep slight left at fork
0.5 mi·1 min
Toward CA 37: NapaUse the straight / slight right lanes.
38
Continue on CA 37
1.5 mi·1 min·CA 37
Toward CA 37Use the straight / slight right lanes.
39
Take the exit
0.4 mi·51 sec
Exit 19Toward CA 29: Napa, Sonoma BoulevardUse the straight / slight right lanes.
40
Turn right onto CA 29
1.6 mi·1 min·Sonoma Boulevard
Use the right lane.
41
Continue on CA 29
4.0 mi·4 min·Broadway Street
Use the straight lane.
42
Continue on CA 29
1.3 mi·1 min·Napa–Vallejo Highway
Use the left lane.
43
Continue on CA 12; CA 29
22 mi·25 min·Saint Helena Highway
Use the straight / slight right lanes.
44
Continue on CA 29; CA 128
2.4 mi·2 min·Main Street
45
Continue on CA 29; CA 128
6.8 mi·7 min·Saint Helena Highway
46
Continue on CA 128
1.4 mi·1 min·Foothill Boulevard
47
Continue on CA 128
16 mi·18 min·Saint Helena Highway
48
Continue on CA 128
6.6 mi·7 min·Saint Helena Highway
49
At end of road, turn right onto CA 128
0.9 mi·1 min·Geyserville Avenue
50
Turn left onto CA 128
359 ft·6 sec·Canyon Road
51
Take the exit onto CA 128
0.3 mi·39 sec·CA 128
52
Merge onto US 101; CA 128
36 mi·44 min·Redwood Highway
Use the straight / slight right lanes.
53
Take the exit
0.2 mi·30 sec
Toward Perkins Street, Central UkiahUse the straight / slight right lanes.
54
Turn left onto East Perkins Street
0.7 mi·1 min·East Perkins Street
55
Turn right onto US 101 Business
57 ft·1 sec·North State Street
56
Arrive at destination
US 101 Business
Trip Plan
For this 9h 59m drive, splitting the journey over two days is highly recommended to ensure a safer and more enjoyable experience. Aim to complete around half the distance, approximately 265 miles, on your first day, leaving the remaining 266 miles for day two. This pacing allows for ample rest stops and reduces driving fatigue. With a fuel cost estimated at $122, plan your refueling stops accordingly, especially before embarking on the longest stretch of 225.6 miles on the Westside Freeway. Consider leaving early in the morning on your first day to maximize daylight and arrive at your overnight stop at a reasonable hour.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 265.8 miles from Irvine, CA, or about 4h 55m into the drive.
The longest continuous stretch on this route runs about 225.6 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 117 miles or 2h 15m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 265.8 miles or 4h 55m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 265.8 miles or 4h 55m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 8h 46m
Traffic, exits, and arrival timing usually matter more near Ukiah, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Irvine, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Irvine, CA
Aim for roughly 266 miles and 5 hours of wheel time on this day.
Day 2
Finish the approach into Ukiah, CA
Aim for roughly 266 miles and 5 hours of wheel time on this day.
Your first comfortable stop window is around 117 miles from Irvine, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 225.6 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 46
5 decision points cluster between mile 6.3 and 411.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
6.3 mi into trip|~7m in
Take the exit toward CA 55 South, CA 55 North: Freeway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 9A
Toward CA 55 South, CA 55 North: Freeway
9
68.6 mi into trip|~1h 19m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 5 Truck North, CA 14 Truck
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 161A
Toward I 5 Truck North, CA 14 Truck
8
390.6 mi into trip|~7h 11m in
Take the exit toward I 680 South, I 680 North: San Jose, Sacramento, Concord, Walnut Creek
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 44B
Toward I 680 South, I 680 North: San Jose, Sacr...
9
390.8 mi into trip|~7h 11m in
Keep slight right at fork toward I 680 North: Walnut Creek, Concord, Sacramento
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 680 North: Walnut Creek, Concord, Sacr...
8
411.3 mi into trip|~7h 35m in|I 680 / Senator Daniel E Boatwright Highway
Keep slight left at fork onto I 680 / Senator Daniel E Boatwright Highway toward I 680 North: Martinez, Sacramento
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 680 North: Martinez, Sacramento
Fuel & Cost
Regular Gas
$111.20 one way
$222.39 round trip
$5.31/gal25.4 MPG avg186 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$115.49
$230.97
premium
$5.67
$118.54
$237.08
diesel
$4.80
$100.36
$200.71
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$111
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$241–$351
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 186 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $56 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
159.5
1
$55.81
$25.51
Efficient EV
132.9
1
$46.51
$21.26
EV Truck/SUV
212.6
2
$74.41
$34.02
Gas CO2
186 kg
EV CO2
62 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Jul 16, 2026
Origin
Irvine, CA
Night
in Irvine on Saturday
Local time
11:45 PM
PDT
Current temp
84°F
Sunny
SW 10 mph4% chanceLive forecast
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Destination
Ukiah, CA
Night
in Ukiah on Saturday
Local time
11:45 PM
PDT
Current temp
86°F
Sunny
WNW 8 to 13 mph0% chanceLive forecast
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego 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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
2 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
9h 59m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Port Chicago Naval Magazine National Memorial
National Memorial
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
7 mi from route
~18 min detour
Free
near mile 421.5
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
15 mi from route
~38 min detour
Free
near mile 421.5
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
22 mi from route
~54 min detour
Free
near mile 403.2
The Santa Monica Mountains offer easy access to surprisingly wild places. Experience the famous beaches of Malibu or explore more than 500 miles of trails. The park abounds with historical and cultura...
22 mi from route
~54 min detour
Free
near mile 73.3
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
26 mi from route
~64 min detour
$15
near mile 421.5
Yes, we can! Widely recognized as the most important Latino leader in the United States during the twentieth century, Cesar Chavez led farm workers and supporters in the establishment of the country's...
27 mi from route
~67 min detour
Free
near mile 128.3
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is characterized by its predominantly highway nature, with 75% of the journey on main roads. You'll experience long stretches of consistent driving, including a significant 225.6-mile segment on the Westside Freeway. While the primary roads are freeways designed for speed and efficiency, the Saint Helena Highway offers a change of pace. The overall feel is one of covering distance, with the landscape gradually shifting as you move north through California. Be prepared for a significant amount of time spent on high-speed, multi-lane highways.
75% highway — fuel and pacing are the main things to plan.
56 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 225.6 mi on Westside Freeway.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on Westside Freeway and Saint Helena Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 6.3 miles in.
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 46 significant decision points across 531.5 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 6.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 68.6 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 390.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
3,762 ft54 ft
Total Climb
4,893 ft
Total Descent
4,313 ft
Highest Point
3,762 ft
~113.9 mi in
Elevation Range
3,708 ft
Notable High Points
3,762 ft at ~113.9 miles+2,412 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Irvine, CA and Ukiah, CA, road signs point toward San Francisco, Sacramento, Concord, Walnut Creek, Novato and Auto Mall.
Irvine is a city of 308,000 people (2020) in Orange County, California. Irvine is one of the newest and largest cities in Orange County, and it is still growing. The city is a perfectly planned suburbia. The Irvine Company started developing the area in the 1960s and the city was formally incorporated on December 28, 1971.
Top landmarks
•Pretend City Children's Museum — children's Museum in California, U.S.
Ukiah is a city in the North Coast of California. Just as picturesque as its coastal brethren, Ukiah is in a valley surrounded by beautiful rolling hills or small mountains. It's a good base for exploring Mendocino County, and hosts a variety of small unusual shops and restaurants.
The longest stretch is about 225.6 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 266 miles on day one.
Yes — we found about 40 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Ukiah, 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 2 meaningful breaks. There are 40 rest areas along the route for bathroom stops.
The main spots that need attention: at 6.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 68.6 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 390.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Port Chicago Naval Magazine National Memorial, Rosie the Riveter WWII Home Front National Historical Park and San Francisco Maritime National Historical Park (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 10.0 hours each way, a round trip means 20.0 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Ukiah, CA before the return drive.
