Is it better to fly or drive?

Flying is faster, but driving allows for more flexibility.

Yes, it is a major highway, but stay alert.

What is the best airport?

SAN is the most convenient for downtown.

Amtrak offers a scenic route, but it takes much longer than flying.

Mountain View

San Diego

Flight Driving

Mountain View to San Diego

Updated: 28 May 2026

Traveling from Mountain View to San Diego covers approximately 750 kilometers. The most practical way to travel is by flying from San Jose (SJC) or San Francisco (SFO) airports to San Diego International Airport (SAN). Alternatively, you can drive via I-5 South, which takes about 8 to 9 hours depending on traffic. This is a long but scenic journey through the heart of California.

Total Distance: 750 km driving distance; 680 km straight-line air distance.

Fastest Way

Flying is significantly faster than driving, taking only about 1 hour 30 minutes in the air.

Cheapest Way

Flying with a budget airline like Southwest is often the cheapest and fastest option.

Compare Mountain View to San Diego Routes

	Flight Direct	Driving Direct
Duration	1 hour 30 mins	8 hours
Avg Price	$100 - $250	$80 - $130 in fuel
Operator	Alaska Airlines, Southwest	Personal Vehicle
Route	SJC or SFO to SAN.	I-5 South.
Tip	Book flights at least two weeks in advance for the best rates.	The I-5 route is efficient but can be monotonous; plan for stops in the Central Valley.

Travel Tips

Airport Choice
San Diego International (SAN) is very close to downtown.
Traffic
Avoid driving through LA during rush hour, which is notoriously heavy.
Car Rental
If you drive, consider renting a car if you don't have your own for city travel.
Weather
San Diego is generally warmer than the Bay Area; pack accordingly.
Booking
Use travel aggregators to compare flight prices across different airlines.

Safety Tips

Driving
Stay alert on I-5, especially at night when visibility is lower.
City Safety
Be aware of your surroundings in crowded tourist areas.
Emergency
Keep a roadside emergency kit in your car if driving.
Transit
Use reputable ride-sharing services if you don't have a car in the city.