Drive or Fly: Alum Rock, CA to Fontana, 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 SJC–ONT. At 384 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

7h 18m

Distance

384.8 mi

Total Cost

$120

CO2

155 kg

Cost Breakdown

Diesel$85

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

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 5m

40m in the air

Air Distance

334 mi

Total Cost

$188

CO2

85 kg

Door-to-Door Timeline

Alum Rock, CA → SJC 10m

Check-in & Security 90m

Flight 40m

Arrival & Baggage 30m

ONT → Fontana, CA 15m

Cost Breakdown

Ticket (1 pax @ $133) $133

Rental car (1 day)$55

Airports

Alum Rock, CA SJC — Norman Y. Mineta San Jose International Airport 6 mi, ~10m drive

Fontana, CA ONT — Ontario International Airport 10 mi, ~15m drive

No scheduled flights found

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

+ Saves about 4h 13m 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 18m	3h 5m
Total cost (1 person)	$120	$188
Carbon footprint	155 kg CO₂	85 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 18, 2026.

Route Options

2 different routes between these cities.

Fastest

384.8 mi 7h 17m

via I 5, I 5 Truck, I 210

Alternative (+27 min)

391 mi 7h 45m

via I 5, CA 138, CA 152

Decided to drive? See the full trip plan from Alum Rock, CA to Fontana, CA with stops, fuel costs, and turn-by-turn directions.