Santa Rosa to San Diego flights: who flies STS-SAN

Santa Rosa to San Diego flight schedule

Scheduled nonstop departures for STS to SAN 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 San Diego (SAN)
Date	Flight	Airline	Departs STS	Arrives SAN	Duration	Aircraft
Fri, Oct 23	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Fri, Oct 23	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Fri, Oct 23	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Sat, Oct 24	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Sat, Oct 24	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Sat, Oct 24	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Sun, Oct 25	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Sun, Oct 25	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Sun, Oct 25	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Mon, Oct 26	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Mon, Oct 26	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Mon, Oct 26	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Tue, Oct 27	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Tue, Oct 27	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Tue, Oct 27	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Wed, Oct 28	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Wed, Oct 28	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Wed, Oct 28	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175
Thu, Oct 29	AS 3349	Alaska Airlines, Inc.	06:19	08:10	1h 51m	Embraer E175
Thu, Oct 29	AS 2331	Alaska Airlines, Inc.	10:50	12:30	1h 40m	Embraer E175
Thu, Oct 29	AS 3141	Alaska Airlines, Inc.	16:35	18:21	1h 46m	Embraer E175

Showing all 21 scheduled STS to SAN 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 SAN date on the interactive map

Aircraft on the Santa Rosa to San Diego 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 SAN 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 San Diego 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 12 of the 14 Santa Rosa to San Diego 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 SAN 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 SAN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Santa Rosa to San Diego nonstop

Carriers operating STS to SAN 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 SAN on the interactive map →

Frequently asked questions about STS to SAN

How long is the flight from Santa Rosa (STS) to San Diego (SAN)?

Scheduled flight times from Santa Rosa (STS) to San Diego (SAN) run from 1h 40m to 1h 51m across the departures in the schedule table on this page. The nonstop covers about 508 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from STS to SAN?

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

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

About 23 nonstop flights a week run between Santa Rosa (STS) and San Diego (SAN) 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 SAN depart?

Scheduled STS to SAN nonstops in the next 7 days with service leave between 06:19 and 16:35, local time at Santa Rosa. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate STS to SAN nonstop?

In the schedule table on this page, STS to SAN nonstops fly as AS 2331, AS 3141, and AS 3349 on Alaska Airlines. The table lists each departure by date with its times and aircraft.

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

Open the STS to SAN 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.