If my flight departs at 10:30 am, at what time should I arrive to the airport?

At least an hour or more.

90 minutes.

I would say 9am .

Pre check 9 am, no precheck 8:30

if you have already che ked in online and don't have checked bags i get there an hour early

ACTUALLY JUST FLEW OUT OF ONTARIO. REALLY WENT SWIFTLY. I WAS THERE 1 AND A HALF HOURS EARLY, SO HAD A WHOLE LOT OF wait time!! They have really speeded things up.

2 hrs before your flight they just got this new scanning machines and they take for ever to scan your bags just flew out of ontario Wednesday and just made my flight

2 hours is better to be safe.

9 am is good time you don't have to be 2 hours before