The drive from Irvine, CA to Brentwood, CA covers 387.7 miles and takes about 7h 16m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Westside Freeway, Golden State Freeway, I 5 Truck for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 225.6 miles on Westside Freeway.
At current regular gas prices, budget about $89.11 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
193.9 miles from Irvine, CA
A natural place for your longest stop of the day
, about 3h 38m into the drive
.
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.
Brentwood is an affluent, suburban city in eastern Contra Costa County, California with a popular downtown for visitors coming from the Sacramento Valley to the county. It serves as one of the eastern gateways to the East Bay, along with Livermore. Many in the city are commuters.
Top landmarks
•Stone House of John Marsh — historic stone house in Contra Costa County, California
Doable as a same-day drive at 7h 16m. Total distance: 387.7 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 16m drive, plan rest stops for pacing.
Drive Character
This is a 7h 16m highway drive covering 387.7 miles, with most of the trip on Westside Freeway and Golden State Freeway. The longest continuous stretch is about 225.6 miles on Westside Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 32 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Westside Freeway is the longest continuous segment at about 225.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Westside Freeway and Golden State Freeway. 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 Effort9/10
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 25 significant decision points across 387.7 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 6.5 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 10.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 25 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
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
7
6.5 mi into trip|~7m in
Keep slight right at fork toward CA 55 North
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward CA 55 North
7
10.6 mi into trip|~12m in
Take the exit toward I 5 North: Santa Ana
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 10B
Toward I 5 North: Santa Ana
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
7
128.5 mi into trip|~2h 28m in|I 5 / Westside Freeway
Keep slight right at fork onto I 5 / Westside Freeway toward I 5 North
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 5 North
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Irvine, CA to Brentwood, CA, road signs begin pointing toward San Francisco along the way.
San Francisco
354.1 mi in|~6h 30m|via I 580
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
Golden State Freeway
50 mi
57m
I 5 Truck
37.7 mi
43m
Santa Ana Freeway
29.6 mi
34m
William Elton Brown Freeway
13.9 mi
14m
Byron Highway
6.7 mi
10m
San Diego Freeway
5.6 mi
6m
Brentwood Boulevard
3.7 mi
5m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between Irvine, CA and Brentwood, 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
14 mi·14 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
22
Take the exit
0.2 mi·22 sec
23
Keep slight right at fork
288 ft·7 sec
Toward Patterson Pass Road
24
Turn straight onto Mountain House Parkway
0.7 mi·1 min·Mountain House Parkway
Use the straight lane.
25
Turn right onto International Parkway
0.8 mi·1 min·International Parkway
26
Continue on Mountain House Parkway
2.8 mi·5 min·Mountain House Parkway
Use the straight lane.
27
At end of road, turn left onto J4
1.8 mi·2 min·Byron Road
Use the slight left lane.
28
Continue on J4
1.5 mi·2 min·Byron-Bethany Road
29
Continue on J4
6.7 mi·10 min·Byron Highway
30
At end of road, turn left onto CA 4
1.4 mi·2 min·CA 4
Use the left / straight lanes.
31
Continue on Brentwood Boulevard
3.7 mi·5 min·Brentwood Boulevard
32
Arrive at destination
Brentwood Boulevard
Trip Plan
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.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 193.9 miles from Irvine, CA, or about 3h 38m into the drive.
The longest continuous stretch on this route runs about 225.6 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 85 miles or 1h 38m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 193.9 miles or 3h 38m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 1m
Traffic, exits, and arrival timing usually matter more near Brentwood, 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.
Day 1
Settle into the route from Irvine, CA
This is one driving day of about 387.7 miles and 7h 16m.
Your first comfortable stop window is around 85 miles from Irvine, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
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.
Halfway Point
Midpoint
About 193.9 mi from Irvine, CA
· 3h 38m into the drive
The midpoint is around 193.9 miles from Irvine, CA, which is a good place for a longer meal and fuel stop.
Arriving in Brentwood, CA
The final approach into Brentwood, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Brentwood, CA.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
20 mi from route
~50 min detour
Free
near mile 387.7
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
~55 min detour
Free
near mile 66.8
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
~69 min detour
Free
near mile 133.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$89.11 one way
$178.22 round trip
$5.84/gal25.4 MPG avg136 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$91.83
$183.65
premium
$6.18
$94.28
$188.57
diesel
$5.61
$85.60
$171.20
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$89
Meals
$25–$50
Total
$114–$139
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 135.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $41 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
116.3
1
$40.71
$18.61
Efficient EV
96.9
1
$33.92
$15.51
EV Truck/SUV
155.1
1
$54.28
$24.81
Gas CO2
136 kg
EV CO2
45 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 Apr 15, 2026
Origin
Irvine, CA
Morning
in Irvine on Saturday
Local time
6:59 AM
PDT
Current temp
71°F
Unavailable
Live forecast
Destination
Brentwood, CA
Morning
in Brentwood on Saturday
Local time
6:59 AM
PDT
Current temp
--
Unavailable
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.
Road read
7h 16m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Irvine, CA to Brentwood, CA covers 387.7 miles and takes about 7h 16m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Westside Freeway, Golden State Freeway, I 5 Truck. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 193.9 miles from Irvine, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $89.11 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 25 significant decision points across 387.7 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.
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 6.5 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 10.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
On the drive from Irvine, CA to Brentwood, CA, road signs begin pointing toward San Francisco along the way.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
