Ontario (ONT) → San Jose (SJC)
Southwest Airlines operates nonstop flights from Ontario (ONT) to San Jose (SJC). The nonstop flight takes around ~0h 40m, covering 333 miles (536 km). Updated 31 May 2026.
ONT
→
SJC
Round trip
1 adult
Economy
Pick dates
📬 Email me when fares drop
We'll check every combination in your window daily and email you the cheapest match. No account needed.
✈ Not set on SJC? Compare destinations
Find Deals (Pro) scans nonstop fares from ONT to up to 8 destinations under one price cap — and emails you when a fare drops below it.
Southwest Airlines
WN
Departure Schedule next 7 days
Sign up to see San Jose schedule from ONT
Already have an account? Sign in
Frequently asked questions
Is there a direct flight from Ontario to San Jose?
Yes, Southwest Airlines operates nonstop flights from Ontario (ONT) to San Jose (SJC).
Which airlines fly direct from Ontario to San Jose?
Southwest Airlines operates nonstop flights from Ontario to San Jose.
How long is the flight from Ontario to San Jose?
The nonstop flight from Ontario to San Jose takes ~0h 40m (approximately 536 km).