There is no direct train; driving is the standard mode.

How long is the drive?

The drive takes about 55 minutes without traffic.

Yes, the Dumbarton Bridge has a toll.

Yes, there are bus services, but they are slower than driving.

Is Sunnyvale walkable?

The downtown area is walkable, but most of the city requires a car.

Dublin

Sunnyvale

Driving

Dublin to Sunnyvale

Updated: 28 May 2026

The distance between Dublin and Sunnyvale is approximately 55 kilometers. The most direct route is via I-680 South to CA-84 West (Dumbarton Bridge), which takes about 55 minutes depending on traffic. Sunnyvale is a major hub in Silicon Valley. Driving is the most practical mode for this commute. Plan for potential congestion on the bridge during peak hours.

Total Distance: 55 km driving, 45 km air distance.

Fastest Way

Driving is the fastest method, taking roughly 55 minutes.

Cheapest Way

Driving is the most economical and convenient way to travel.

Compare Dublin to Sunnyvale Routes

Driving

Direct

Duration

55 mins

Avg Price

$14-$20 in fuel

Operator

Personal Vehicle

Route

I-680 S to CA-84 W to US-101 S

The Dumbarton Bridge has a toll; use FasTrak for convenience.

Travel Tips

Driving
Use navigation apps to check for accidents on the Dumbarton Bridge before you leave.
Commute
If driving, try to travel outside of the standard 8 AM and 5 PM rush hours.
Parking
Public parking is available in downtown Sunnyvale in various garages.
Transit
Caltrain is available if you travel to a station, but driving is more direct from Dublin.
Weather
Sunnyvale is generally mild, but it can be windy near the bay.

Safety Tips

Driving Safety
Keep a safe distance from other vehicles on the busy CA-84 corridor.
Emergency
Keep your phone charged and have a backup navigation app ready.
Personal Safety
Be aware of your surroundings when parking in public areas.
Road Safety
Watch for merging traffic at the bridge approaches.