Direct (nonstop) flights from Ontario to Oakland
1 airline flys nonstop from Ontario International Airport (ONT) to Metropolitan Oakland International (OAK). It's 361 miles (581 km), about 1h 20m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Ontario to Oakland with one stop · direct emits 67 kg CO₂ per passenger
Looking for the return flight?
OAK → ONT: Flights from Oakland to OntarioOther direct flights from Ontario
Direct flights from Oakland (OAK)
Frequently Asked Questions
How long is the direct flight from Ontario to Oakland?
A nonstop flight from Ontario (ONT) to Oakland (OAK) takes approximately 1 hours and 20 minutes. The distance is 361 miles (581 km).
Which airlines fly nonstop from Ontario to Oakland?
Just Southwest Airlines.
Is there a nonstop flight from Ontario to Oakland?
Yes. 1 airline: Southwest Airlines.
How far is Ontario from Oakland?
The flight distance from Ontario to Oakland is 361 miles (581 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Ontario to Oakland?
At 1h 20m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Ontario to Oakland?
Roughly 67 kg CO2 per passenger one-way. That's about the same as driving 335 km.
Is the return flight from Oakland to Ontario also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Ontario to Oakland?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Ontario International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.