Is San Diego walkable?

Downtown and the Gaslamp Quarter are walkable, but you need a car for the rest.

What is the best time to visit?

Fall offers the best balance of weather and lower prices.

Are there direct flights?

Most flights from CVG to SAN require a layover.

Yes, the interstate system is well-maintained and safe for travel.

Pack layers, as the weather changes from the coast to the inland areas.

Newport

San Diego

Flight Driving

Newport to San Diego

Updated: 30 May 2026

Traveling from Newport to San Diego covers over 3,500 kilometers. Flying from CVG to San Diego International Airport (SAN) is the most efficient method, usually involving a connection in a hub like Dallas or Denver. If you choose to drive, you will follow I-70 to I-40, eventually connecting to I-15 South through the Mojave Desert. This journey takes you through diverse landscapes, from the rolling hills of Kentucky to the coastal cliffs of Southern California. Plan for at least four days of driving if you intend to make the trip by car.

Total Distance: 3,500 km driving, 3,000 km air distance.

Fastest Way

Flight from CVG to SAN is the fastest at 7 hours.

Cheapest Way

Driving is cost-effective for families or groups.

Compare Newport to San Diego Routes

	Flight Connecting	Driving Direct
Duration	7 hours	35 hours
Avg Price	$300 - $600	$500 - $700 in fuel
Operator	Southwest Airlines	Personal Vehicle
Route	CVG to SAN	I-70 W to I-40 W to I-15 S
Tip	Check flights into Ontario (ONT) as a cheaper alternative.	Stop in Flagstaff to break up the long desert drive.

Travel Tips

Traffic
Avoid I-5 during morning and evening rush hours in San Diego.
Parking
Use public parking garages in downtown to avoid high hotel fees.
Public Transit
The San Diego Trolley is an efficient way to reach major attractions.
Coastal Weather
Bring a light jacket as temperatures drop significantly at night.
Booking
Book your flight at least 21 days in advance for the best rates.