Airport gate intelligence · STS
How many gates does Santa Rosa Airport (STS) have?
Santa Rosa Airport (STS) has 8 gates, with about 23 airline departures a day. Alaska has the most (3), followed by American (2).
Alaska flies 67% of the 2,196 seats leaving STS each day. Alaska has 50% more gates and 651% more seats than American.
Gates, seats and flights by airline at STS
| Airline | Gates held | Departures a day | Seats out a day | Share of seats | Seats per departure | Regional jets | Median turn | Tows a week |
|---|---|---|---|---|---|---|---|---|
| Alaska | 3 | 16 | 1,465 | 67% | 92 | 81% | 52 min | 7 |
| American | 2 | 3 | 195 | 9% | 65 | 100% | 34 min | 0 |
| Southwest | 1 | 4 | 536 | 24% | 143 | 0% | 50 min | 0 |
Average of 4 full days, Oct 3 to Oct 7, 2026. Gates held = the airline flying the gate most (regional partners count as their brand); 1 gate has too few flights yet. Seats are capacity, from each airline’s seat map per aircraft type.
On-time departures by airline at STS
81% of departures left the gate on time (less than 15 minutes after their scheduled time). Airlines with 10+ departures a day.
| Airline | Departures a day | On time | 15+ min late |
|---|---|---|---|
| Alaska | 16 | 78% | 22% |
On time = left the gate less than 15 minutes after its scheduled time. Average of 4 full days.
What size aircraft STS’s gates handle
Gates by the largest aircraft seen there at least twice. A gate that takes a wide-body also takes anything smaller.
Airlines at STS: terminals, gates and nonstop routes
Other airlines
Regular flights, but no STS gate listed in the flight data, so not on the map: Delta (60 flights to Salt Lake City).
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STS gate questions
How many gates does Santa Rosa Airport (STS) have?
Santa Rosa Airport (STS) has 8 gates, with about 23 airline departures a day. Alaska has the most (3), followed by American (2).
Which airline has the most gates at Santa Rosa Airport (STS)?
Alaska, with 3 of the 8 gates at STS (the airline flying each gate most; regional partners count as their brand).
How many flights a day leave Santa Rosa Airport (STS)?
About 23 airline departures a day (Oct 3 to Oct 7, 2026).
How many gates does Alaska have at STS?
3 gates, with about 16 departures and 1,465 seats a day.
How many gates does American have at STS?
2 gates, with about 3 departures and 195 seats a day.
How many gates does Southwest have at STS?
1 gate, with about 4 departures and 536 seats a day.
How many seats leave STS each day?
About 2,196 seats on 23 airline departures a day (average of 4 full days, Oct 3 to Oct 7, 2026).
What is the typical turn time at STS?
48 minutes at the gate from arrival to departure (median of every turn measured).
Which airline leaves STS on time most often?
Alaska Airlines: 78% of its departures left the gate less than 15 minutes after their scheduled time, against 81% for all airlines at STS (4 full days, Oct 3 to Oct 7, 2026).
How many aircraft tows happen at STS?
About 7 tows a week: a plane that arrives at one gate and leaves from another was towed between them. Planes we didn't see arrive aren't counted.