San Francisco (SFO) to Denver (DEN) flights
United Airlines, Southwest Airlines, Frontier Airlines, SkyWest Airlines fly nonstop from San Francisco International Airport to Denver International Airport, with about 116 flights a week in July 2026. The 967-mile flight takes about 2h 33m gate to gate.
- Distance
- 967 mi · 1,556 km
- Flight time
- 2h 33m
- Airlines
- 4
- Seats filled
- 82%
Airlines flying SFO to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 75 | Airbus A321, Boeing 757-300, Boeing 737-900ER | 552,700 | 2h 35m |
| Southwest Airlines | 25 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 180,284 | 2h 26m |
| Frontier Airlines | 15 | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 107,902 | 2h 40m |
| SkyWest Airlines | <1 | Embraer E175, Bombardier CRJ700, Bombardier CRJ200 | 46 | 2h 49m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SFO to DEN flight schedule
24 flight numbers flew this route in August 2026, 13 of them almost daily. The first usually leaves at 5:00am and the last at 9:13pm. 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) |
|---|---|---|---|---|
| UA 1479United Airlines | 5:00am | 8:40am | 31 | 96% |
| F9 1230Frontier Airlines | 6:00am | 9:41am | 31 | 89% |
| UA 1758United Airlines | 6:15am | 9:59am | 9 | 84% |
| UA 598United Airlines | 6:15am | 10:03am | 12 | 100% |
| WN 4703Southwest Airlines | 6:20am | 9:50am | 28 | 96% |
| UA 2348United Airlines | 8:31am | 12:22pm | 10 | 82% |
| UA 1469United Airlines | 8:45am | 12:36pm | 21 | 91% |
| UA 1604United Airlines | 10:40am | 2:23pm | 10 | 66% |
| UA 2274United Airlines | 10:43am | 2:32pm | 21 | 55% |
| WN 3422Southwest Airlines | 11:15am | 2:55pm | 16 | 13% |
| UA 540United Airlines | 12:35pm | 4:25pm | 31 | 71% |
| WN 3317Southwest Airlines | 12:40pm | 4:05pm | 4 | n/a |
| WN 3504Southwest Airlines | 1:25pm | 4:55pm | 6 | n/a |
| WN 3551Southwest Airlines | 1:30pm | 5:00pm | 24 | 17% |
| UA 1596United Airlines | 2:20pm | 6:10pm | 31 | 68% |
| WN 4813Southwest Airlines | 3:20pm | 6:50pm | 20 | 26% |
| UA 1430United Airlines | 4:18pm | 8:07pm | 31 | 76% |
| F9 1094Frontier Airlines | 4:47pm | 8:32pm | 14 | 42% |
| UA 1214United Airlines | 5:30pm | 9:28pm | 6 | 82% |
| UA 2436United Airlines | 6:25pm | 10:08pm | 31 | 88% |
| F9 3440Frontier Airlines | 7:30pm | 11:10pm | 23 | 56% |
| UA 1145United Airlines | 7:56pm | 11:42pm | 15 | 60% |
| UA 2019United Airlines | 7:56pm | 11:43pm | 10 | 87% |
| UA 301United Airlines | 9:13pm | 12:59am | 31 | 84% |
Is SFO to DEN on time?
From September 2025 to August 2026, 75% of 5,486 flights arrived within 15 minutes of schedule and 0.5% were cancelled. Flights leaving around 5am were the most punctual (96%), those around 2pm the least (59%). Most delay time was caused by late-arriving aircraft (52%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 3,427 | 82% | 11 min | 0.2% |
| Southwest Airlines | 1,391 | 59% | 27 min | 0.8% |
| Frontier Airlines | 668 | 69% | 22 min | 1.2% |
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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 5am to 6am | 635 | 96% | |
| 6am to 7am | 761 | 93% | |
| 8am to 9am | 543 | 83% | |
| 10am to 11am | 229 | 53% | |
| 11am to 12pm | 278 | 68% | |
| 12pm to 1pm | 479 | 61% | |
| 1pm to 2pm | 234 | 52% | |
| 2pm to 3pm | 562 | 59% | |
| 4pm to 5pm | 397 | 70% | |
| 6pm to 7pm | 313 | 84% | |
| 7pm to 8pm | 319 | 70% | |
| 8pm to 9pm | 200 | 84% | |
| 9pm to 10pm | 263 | 69% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 461 | 76,597 | |
| September 2025 | 454 | 68,497 | |
| October 2025 | 463 | 72,850 | |
| November 2025 | 436 | 66,544 | |
| December 2025 | 457 | 70,650 | |
| January 2026 | 442 | 60,404 | |
| February 2026 | 399 | 57,688 | |
| March 2026 | 445 | 73,316 | |
| April 2026 | 427 | 65,553 | |
| May 2026 | 484 | 74,198 | |
| June 2026 | 499 | 81,063 | |
| July 2026 | 513 | 73,991 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.