OO5566
OO5566 (SkyWest Airlines) is a multi-stop service on 7 routes, busiest San Francisco to Sacramento. Of 610 departures recorded from October 2024 to July 2026, 84.1% left on time, according to the US BTS.
- On-time departures84.1%of 610 flights
- Average delay13.7 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.2%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 24 | ▼ 22.6% |
| February | 28 | 25 | ▼ 10.7% |
| March | 31 | 20 | ▼ 35.5% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 51 | ▲ 70.0% |
| July | 31 | 31 | 0.0% |
| August | 26 | – | – |
| September | 17 | – | – |
| October | 7 | – | in progress |
| November | 29 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 212 | 212 | 0.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.9% | 82.6% | ▼ 1.5% |
| February | 85.2% | 80.0% | ▼ 6.1% |
| March | 87.1% | 95.0% | ▲ 9.1% |
| April | 93.3% | 83.3% | ▼ 10.7% |
| May | 83.9% | 54.8% | ▼ 34.6% |
| June | 96.7% | 92.0% | ▼ 4.8% |
| July | 76.7% | 80.0% | ▲ 4.3% |
| August | 80.8% | – | – |
| September | 88.2% | – | – |
| October | 85.7% | – | in progress |
| November | 89.7% | – | – |
| December | 82.1% | – | – |
| Year-to-date average (Jan–Jul) | 86.7% | 81.1% | ▼ 6.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.9% 603
- Cancelled 1.1% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO SMF San Francisco International Airport – Sacramento International Airport | 138 | 15.0 min | 83.9% | 457 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 11.9 min | 81.6% | 51 |
| ORD CRW Chicago O'Hare International Airport – Yeager Airport | 669 | 16.7 min | 83.3% | 37 |
| MKE ORD General Mitchell International Airport – Chicago O'Hare International Airport | 108 | 2.6 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 29 | 27 | 81.5% | 2 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 28 | 27 | 85.2% | 1 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 31 | 30 | 76.7% | 1 |
| August 2025 | 26 | 26 | 80.8% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 7 | 7 | 85.7% | 0 |
| November 2025 | 29 | 29 | 89.7% | 0 |
| December 2025 | 28 | 28 | 82.1% | 0 |
| January 2026 | 24 | 23 | 82.6% | 1 |
| February 2026 | 25 | 25 | 80.0% | 0 |
| March 2026 | 20 | 20 | 95.0% | 0 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 31 | 31 | 54.8% | 0 |
| June 2026 | 51 | 50 | 92.0% | 1 |
| July 2026 | 31 | 30 | 80.0% | 1 |