Santa Rosa to San Diego (STS-SAN): nonstop upgrade & award space

Alaska Airlines flies nonstop between Santa Rosa (STS) and San Diego (SAN), roughly 21 times a week. With Alaska Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, on every STS to SAN departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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21
Nonstop flights a week
508 mi
Nonstop distance
Free
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Santa Rosa to San Diego flight schedule

Scheduled nonstop departures for STS to SAN, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Santa Rosa (STS) to San Diego (SAN)
Date Flight Airline Departs STS Arrives SAN Duration Aircraft
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75
AS 3315Alaska Airlines, Inc.06:1608:051h 49mE75
AS 3047Alaska Airlines, Inc.10:3412:201h 46mE75
AS 3046Alaska Airlines, Inc.18:4720:361h 49mE75

Showing all 20 scheduled STS to SAN departures across the next 7 days with service. 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 has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every STS to SAN date on the interactive map

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.

See real availability

Confirmed upgrade and award seats on each STS to SAN departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are 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. 2LNR tracks confirmed upgrade and award space on each of them.

See STS to SAN on the interactive map →

Frequently asked questions about STS to SAN

How far is San Diego from Santa Rosa?
STS to SAN covers about 508 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
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 21 nonstop flights a week run between Santa Rosa and San Diego 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 06:16 and 18:47, local time at Santa Rosa. The schedule table on this page lists every departure by date, with its arrival time 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.

Never miss STS to SAN upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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