Santa Rosa (STS) to Ontario (ONT) flights: who flies it

Santa Rosa to Ontario flight schedule

Scheduled nonstop departures for STS to ONT starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Santa Rosa (STS) to Ontario (ONT)
Date	Flight	Airline	Departs STS	Arrives ONT	Duration	Aircraft
Fri, Oct 23	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Sat, Oct 24	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Sun, Oct 25	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Mon, Oct 26	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Tue, Oct 27	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Wed, Oct 28	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175
Thu, Oct 29	AS 3032	Alaska Airlines, Inc.	15:32	17:05	1h 33m	Embraer E175

Showing all 7 scheduled STS to ONT departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every STS to ONT date on the interactive map

Aircraft on the Santa Rosa to Ontario nonstop

Alaska Airlines flies the Embraer E175 on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on STS to ONT departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Santa Rosa to Ontario to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

Alaska Airlines award space was open on all 13 Santa Rosa to Ontario departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Confirmed upgrade or award seats by date on the STS to ONT departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See STS to ONT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Santa Rosa to Ontario nonstop

Carriers operating STS to ONT nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

Alaska Airlines (AS) route map
The aircraft AS flies

See STS to ONT on the interactive map →

Frequently asked questions about STS to ONT

How long is the flight from Santa Rosa (STS) to Ontario (ONT)?

AS 3032 is scheduled at 1h 33m from Santa Rosa (STS) to Ontario (ONT) on every departure in the schedule table on this page. The nonstop covers about 422 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from STS to ONT?

Alaska Airlines is currently the only airline flying STS to ONT nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.

How many flights a week are there from STS to ONT?

About 7 nonstop flights a week run between Santa Rosa (STS) and Ontario (ONT) in the current schedule, operated by Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from STS to ONT depart?

In the next 7 days with service, every scheduled STS to ONT nonstop leaves at 15:32 local time at Santa Rosa. The schedule table on this page lists each departure by date.

Which flights operate STS to ONT nonstop?

Alaska Airlines flies AS 3032 nonstop from Santa Rosa (STS) to Ontario (ONT), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft.

How do I check upgrade or award availability on STS to ONT?

Open the STS to ONT route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.