Denver (DEN) to Santa Rosa (STS) flights
Southwest Airlines flies nonstop from Denver International Airport to Charles M. Schulz Sonoma County Airport, with about <1 flights a week in July 2026. The 977-mile flight takes about 2h 44m gate to gate.
- Distance
- 977 mi · 1,572 km
- Flight time
- 2h 44m
- Airlines
- 1
- Seats filled
- 65%
Airlines flying DEN to STS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | <1 | Boeing 737-700 / MAX 7 | 1,433 | 2h 44m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DEN to STS flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 9:20am and the last at 11:50am. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 235Southwest Airlines | 9:20am | 11:00am | 4 | n/a |
| WN 345Southwest Airlines | 10:35am | 12:15pm | 12 | 67% |
| WN 1915Southwest Airlines | 11:50am | 1:35pm | 4 | n/a |
Is DEN to STS on time?
From September 2025 to August 2026, 78% of 37 flights arrived within 15 minutes of schedule and 0% were cancelled. Most delay time was caused by air traffic control and airport congestion (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 37 | 78% | 9 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| April 2026 | 3 | 217 | |
| May 2026 | 5 | 449 | |
| June 2026 | 4 | 424 | |
| July 2026 | 4 | 343 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.