Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
52m
Distance
41.9 mi
67 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$10
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Irvine, CA
Wikimedia Commons
Westmont, CA
Stephen Leonardi
The drive from Irvine, CA to Westmont, CA covers 41.9 miles and takes about 52m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on San Diego Freeway, I 405, Harbor Freeway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 17.6 miles on San Diego Freeway. At current regular gas prices, budget about $9.63 one way before food or hotel costs.
Founded 1971
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
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 52m. Total distance: 41.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
52m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (90%). Some complex stretches to watch for.
This is a 52m highway drive covering 41.9 miles, with most of the trip on San Diego Freeway and I 405. The longest continuous stretch is about 17.6 miles on San Diego Freeway.
This is a straightforward highway drive that stays mostly on San Diego Freeway and I 405. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.4 miles in.
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 16 decision points packed into just 41.9 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 52m.
Where does it get tricky?
The main spots that need attention: at 1.4 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 1.8 miles: Lane positioning matters here; at 8.6 miles (I 405 / San Diego Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Take the exit toward University Drive, Jeffrey Road
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Take the ramp toward I 405 North: Los Angeles
Lane positioning matters here
Keep slight right at fork onto I 405 / San Diego Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward I 110: Harbor Freeway, San Pedro, Los Angeles
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward El Segundo Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Irvine, CA and Westmont, CA, road signs point toward San Pedro and Los Angeles.
San Pedro
Los Angeles
| Road | Distance | Duration |
|---|---|---|
| San Diego Freeway | 17.6 mi | 20m |
| I 405 | 16.4 mi | 18m |
| Harbor Freeway | 3.7 mi | 4m |
| South Normandie Avenue | 1.7 mi | 3m |
| West El Segundo Boulevard | 0.9 mi | 1m |
| Jeffrey Road | 0.2 mi | <1m |
| West 105th Street | 0.1 mi | <1m |
Step-by-step road directions between Irvine, CA and Westmont, CA.
Start on I 405
Take the exit
Turn left onto Jeffrey Road
Take the ramp
Merge onto I 405
Keep slight right at fork onto I 405
Keep slight left at fork onto I 405
Take the exit
Continue on this road
Turn straight
Merge onto I 110
Keep slight right at fork onto I 110
Take the exit
Turn left onto West El Segundo Boulevard
Turn right onto South Normandie Avenue
Turn left onto West 105th Street
Turn right
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 21 mi from Irvine, CA · 24m into the drive
Mid-route town
Meal stop
21 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 41.9 miles helps settle the day before fatigue starts building.
The midpoint is around 21 miles from Irvine, CA, which is a good place for a longer meal and fuel stop.
Allow a few extra minutes for the final approach into Westmont, CA if you are unfamiliar with the area.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$9.63 one way
$19.26 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $9.92 | $19.85 |
| premium | $6.18 | $10.19 | $20.38 |
| diesel | $5.61 | $9.25 | $18.50 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$10
Estimated CO2 emission: 14.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 12.6 | 0 | $4.40 | $2.01 |
| Efficient EV | 10.5 | 0 | $3.67 | $1.68 |
| EV Truck/SUV | 16.8 | 0 | $5.87 | $2.68 |
Gas CO2
15 kg
EV CO2
5 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Morning in Irvine on Saturday
Local time
6:04 AM
PDT
Current temp
55°F
Mostly Clear
Destination
Morning in Westmont on Saturday
Local time
6:04 AM
PDT
Current temp
72°F
Unavailable
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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.
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