Drive or Fly: Ontario, CA to San Francisco, 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 ONT–SFO. At 416 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

7h 47m

Distance

416.7 mi

Total Cost

$128

CO2

168 kg

Cost Breakdown

Diesel$93

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

+ Likely faster door-to-door than flying

− Driver fatigue on longer stretches

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 11m

44m in the air

Air Distance

370 mi

Total Cost

$190

CO2

94 kg

Door-to-Door Timeline

Ontario, CA → ONT 10m

Check-in & Security 90m

Flight 44m

Arrival & Baggage 30m

SFO → San Francisco, CA 17m

Cost Breakdown

Ticket (1 pax @ $135) $135

Rental car (1 day)$55

Airports

Ontario, CA ONT — Ontario International Airport 3 mi, ~10m drive

San Francisco, CA SFO — San Francisco International Airport 11 mi, ~17m drive

No scheduled flights found

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

+ Saves about 4h 36m 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	7h 47m	3h 11m
Total cost (1 person)	$128	$190
Carbon footprint	168 kg CO₂	94 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 Ontario, CA to San Francisco, CA with stops, fuel costs, and turn-by-turn directions.