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
MediumNo scheduled commercial flights found for ONT–SFO. At 416 miles, driving is the only practical option.
Drive
Door to Door
7h 47m
Distance
416.7 mi
Total Cost
$128
CO2
168 kg
Cost Breakdown
Fly
Door to Door
3h 11m
44m in the air
Air Distance
370 mi
Total Cost
$190
CO2
94 kg
Door-to-Door Timeline
Cost Breakdown
Airports
No scheduled flights found
No commercial flights between ONT and SFO. Flight estimates above are theoretical.
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 |
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.