Drive or Fly: Colma, CA to San Diego, CA?

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

Driving wins

Medium

No scheduled commercial flights found for SFO–SAN. At 501 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

9h 37m

Distance

501.1 mi

Total Cost

$146

CO2

202 kg

Cost Breakdown

Diesel$111

Hotel (1 room, 0 nights) $0

Meals (1 pax, 1 day) $35

+ No luggage restrictions or TSA lines

+ Comfortable one-day drive

+ Stop anywhere along the route

+ Have your own car at the destination

− Driver fatigue on longer stretches

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 15m

55m in the air

Air Distance

455 mi

Total Cost

$193

CO2

116 kg

Door-to-Door Timeline

Colma, CA → SFO 10m

Check-in & Security 90m

Flight 55m

Arrival & Baggage 30m

SAN → San Diego, CA 10m

Cost Breakdown

Ticket (1 pax @ $138) $138

Rental car (1 day)$55

Airports

Colma, CA SFO — San Francisco International Airport 6 mi, ~10m drive

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

No scheduled flights found

No commercial flights between SFO and SAN. Flight estimates above are theoretical.

+ Saves about 6h 22m compared to driving

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− No scheduled commercial flights found for this route

− 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	9h 37m	3h 15m
Total cost (1 person)	$146	$193
Carbon footprint	202 kg CO₂	116 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	Data unavailable

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 Apr 12, 2026.

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