Drive or Fly: Boyes Hot Springs, CA to San Diego, CA?

Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.

Could go either way

Medium

This distance is a toss-up. Drive if you want flexibility and lower cost, fly if you value time. Connecting flights add time.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

10h 10m

Distance

529.5 mi

Total Cost

$309

CO2

214 kg

Cost Breakdown

Diesel$129

Hotel (1 room, 1 night) $110

Meals (1 pax, 2 days) $70

+ No luggage restrictions or TSA lines

+ Stop anywhere along the route

+ Have your own car at the destination

− Requires 2 days of driving

− Driver fatigue on longer stretches

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 43m

59m in the air

Air Distance

489 mi

Total Cost

$195

CO2

125 kg

Door-to-Door Timeline

Boyes Hot Springs, CA → STS 34m

Check-in & Security 90m

Flight 59m

Arrival & Baggage 30m

SAN → San Diego, CA 10m

Cost Breakdown

Ticket (1 pax @ $140) $140

Rental car (1 day)$55

Airports

Boyes Hot Springs, CA STS — Charles M. Schulz Sonoma County Airport 22 mi, ~34m drive

San Diego, CA SAN — San Diego International Airport 2 mi, ~10m drive

Flight Data

Service

Connecting only

On-Time

94.6%

Cancellation

5.4%

+ Saves about 6h 27m compared to driving

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− May need a rental car at destination

− Luggage fees and restrictions

− Less flexibility for stops along the way

At a Glance

	Drive	Fly
Door-to-door time	10h 10m	3h 43m
Total cost (1 person)	$309	$195
Carbon footprint	214 kg CO₂	125 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	95% on-time

Drive data: OSRM routing, EIA fuel prices

Flight data: Statistical estimate

Airports: OurAirports

Confidence: Medium — airports identified, fares estimated

Costs are estimates. Actual flight prices vary by airline, date, and booking time. Drive costs based on OSRM routing, EIA fuel prices. Computed Oct 20, 2026.

Decided to drive? See the full trip plan from Boyes Hot Springs, CA to San Diego, CA with stops, fuel costs, and turn-by-turn directions.