How long is the flight?

The flight from SEA to SAN is about 3 hours.

Is driving recommended?

Only for those who enjoy long road trips; it is very tiring.

What is the best way to get around San Diego?

A rental car is the most practical way to explore the region.

Amtrak offers service, but it takes significantly longer than flying.

Yes, but it is heavily trafficked by semi-trucks.

Leavenworth

San Diego

Flight Driving

Leavenworth to San Diego

Updated: 28 May 2026

The journey from Leavenworth to San Diego is a long-distance trip of over 2,100 kilometers. The most efficient way to travel is by flying from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN), which takes about 3 hours in the air. Driving is a major commitment, requiring roughly 22 hours of driving time via I-5 South. San Diego is famous for its beaches, zoo, and naval history. This route takes you from the Pacific Northwest to the southern tip of California.

Total Distance: 2,150 km driving distance; 1,900 km straight-line air distance.

Fastest Way

Flying from SEA to SAN is the fastest way to reach San Diego.

Cheapest Way

Flying is often more economical than the fuel and hotel costs of a 22-hour drive.

Compare Leavenworth to San Diego Routes

	Flight Direct	Driving Direct
Duration	3 hours (flight time)	22 hours
Avg Price	$200-$400	$300-$400 in fuel
Operator	Alaska Airlines	Personal Vehicle
Route	SEA to SAN.	I-5 S.
Tip	Direct flights are available from SEA to SAN.	Plan for at least two overnight stops if driving.

Travel Tips

Airport Transit
Allow 2.5 hours to drive from Leavenworth to SEA airport.
Driving Strategy
If driving, stop in Sacramento and Los Angeles to break up the journey.
Traffic
San Diego traffic can be heavy; avoid rush hours on I-5 and I-805.
Public Transit
The San Diego Trolley is a great way to get around the downtown area.
Weather
San Diego has a mild climate, but bring a jacket for the evenings.

Safety Tips

Driving Fatigue
Take frequent breaks on the long I-5 drive to stay alert.
Personal Safety
Be aware of your surroundings in busy tourist areas.
Airport Security
Arrive at SEA at least 2 hours before your flight.
Vehicle Maintenance
Ensure your car is in top condition before attempting a 22-hour drive.