Santa Rosa (STS) to Denver (DEN) flights
Southwest Airlines flies nonstop from Charles M. Schulz Sonoma County Airport to Denver International Airport, with about <1 flights a week in July 2026. The 977-mile flight takes about 2h 26m gate to gate.
- Distance
- 977 mi · 1,572 km
- Flight time
- 2h 26m
- Airlines
- 1
- Seats filled
- 74%
Airlines flying STS to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | <1 | Boeing 737-700 / MAX 7 | 1,621 | 2h 26m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STS to DEN flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 1:05pm and the last at 1:05pm. 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 4726Southwest Airlines | 1:05pm | 4:35pm | 20 | 56% |
Is STS to DEN on time?
From September 2025 to August 2026, 69% of 37 flights arrived within 15 minutes of schedule and 0% were cancelled. Flights leaving around 2pm were the most punctual (83%), those around 1pm the least (63%). Most delay time was caused by late-arriving aircraft (47%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 37 | 69% | 17 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 | 221 | |
| May 2026 | 5 | 438 | |
| June 2026 | 4 | 512 | |
| July 2026 | 4 | 450 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.