San Diego International ⇄ Charles M Schulz/Sonoma County SAN–STS
Airlines flew 2,103 flights between San Diego International SAN in San Diego, CA and Charles M Schulz/Sonoma County STS in Santa Rosa, CA in the twelve months to July 2026, both directions together: 137,217 passengers in 181,733 seats, 76% of them filled. 508 miles, about 77 minutes in the air, on 4 airlines: SkyWest Airlines Inc. (1,595), Southwest Airlines Co. (361), Horizon Air (145), Scott Aviation, LLC d/b/a Silver Air (2). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 95 |
| 2/25 | 80 |
| 3/25 | 104 |
| 4/25 | 118 |
| 5/25 | 125 |
| 6/25 | 119 |
| 7/25 | 122 |
| 8/25 | 144 |
| 9/25 | 158 |
| 10/25 | 163 |
| 11/25 | 157 |
| 12/25 | 100 |
| 1/26 | 99 |
| 2/26 | 87 |
| 3/26 | 138 |
| 4/26 | 242 |
| 5/26 | 273 |
| 6/26 | 272 |
| 7/26 | 270 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 5,667 |
| 2/25 | 5,165 |
| 3/25 | 6,503 |
| 4/25 | 7,191 |
| 5/25 | 7,192 |
| 6/25 | 7,244 |
| 7/25 | 7,983 |
| 8/25 | 8,868 |
| 9/25 | 9,095 |
| 10/25 | 9,836 |
| 11/25 | 8,998 |
| 12/25 | 6,643 |
| 1/26 | 6,022 |
| 2/26 | 5,992 |
| 3/26 | 8,849 |
| 4/26 | 16,022 |
| 5/26 | 18,376 |
| 6/26 | 18,906 |
| 7/26 | 19,610 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| SkyWest Airlines Inc. OO | 1,595 | 96,923 | 80% | scheduled passenger service |
| Southwest Airlines Co. WN | 361 | 30,354 | 61% | scheduled passenger service |
| Horizon Air QX | 145 | 9,936 | 90% | scheduled passenger service |
| Scott Aviation, LLC d/b/a Silver Air 3EQ | 2 | 4 | 33% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Embraer ERJ-175 | 1,738 | 76 | 106,859 |
| Boeing 737-700/700LR/Max 7 | 359 | 137 | 30,281 |
| Canadair RJ-200ER /RJ-440 | 2 | 50 | 0 |
| Cessna Citationjet/CJ1/CJ2/CJ3 | 2 | 6 | 4 |
| Boeing B737 Max 800 | 2 | 175 | 73 |
SAN → STS this direction alone · flown January 2025 to July 2026
1,051 flights of 1,067 scheduled, 67,944 passengers in 90,859 seats. SkyWest Airlines Inc. 797; Southwest Airlines Co. 181; Horizon Air 72; Scott Aviation, LLC d/b/a Silver Air 1.
STS → SAN this direction alone · flown January 2025 to July 2026
1,052 flights of 1,069 scheduled, 69,273 passengers in 90,874 seats. SkyWest Airlines Inc. 798; Southwest Airlines Co. 180; Horizon Air 73; Scott Aviation, LLC d/b/a Silver Air 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: San Diego International SAN and Charles M Schulz/Sonoma County STS; all routes.