OO4654
OO4654 (SkyWest Airlines) is a multi-stop service on 16 routes, busiest Arcata to San Francisco. Of 614 departures recorded from October 2024 to July 2026, 77.1% left on time, according to the US BTS.
- On-time departures77.1%of 614 flights
- Average delay19.5 min
- July 202631▲ 47.6%vs July 2025
- Cancelled2.6%
- Legs flown under this number16
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 | 27 | 31 | ▲ 14.8% |
| February | 26 | 28 | ▲ 7.7% |
| March | 31 | 31 | 0.0% |
| April | 30 | 29 | ▼ 3.3% |
| May | 29 | 25 | ▼ 13.8% |
| June | 29 | 24 | ▼ 17.2% |
| July | 21 | 31 | ▲ 47.6% |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 193 | 199 | ▲ 3.1% |
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 | 96.3% | 63.3% | ▼ 34.2% |
| February | 52.2% | 64.3% | ▲ 23.2% |
| March | 67.7% | 71.0% | ▲ 4.8% |
| April | 76.7% | 77.8% | ▲ 1.4% |
| May | 93.1% | 92.0% | ▼ 1.2% |
| June | 75.9% | 83.3% | ▲ 9.8% |
| July | 76.2% | 90.3% | ▲ 18.5% |
| August | 80.0% | – | – |
| September | 73.3% | – | – |
| October | 77.4% | – | in progress |
| November | 66.7% | – | – |
| December | 76.0% | – | – |
| Year-to-date average (Jan–Jul) | 76.9% | 77.4% | ▲ 0.7% |
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 | 3 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 0.0% |
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 97.4% 598
- Cancelled 2.6% 16
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ACV SFO California Redwood Coast-Humboldt County Airport – San Francisco International Airport | 402 | 23.3 min | 78.6% | 320 |
| SUN ORD Friedman Memorial Airport – Chicago O'Hare International Airport | 2,153 | 24.6 min | 65.2% | 89 |
| ORD ECP Chicago O'Hare International Airport – Northwest Florida Beaches International Airport | 1,306 | 2.8 min | 90.7% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 19 | 68.4% | 1 |
| November 2024 | 30 | 26 | 84.6% | 4 |
| December 2024 | 29 | 29 | 86.2% | 0 |
| January 2025 | 27 | 27 | 96.3% | 0 |
| February 2025 | 26 | 23 | 52.2% | 3 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 29 | 29 | 93.1% | 0 |
| June 2025 | 29 | 29 | 75.9% | 0 |
| July 2025 | 21 | 21 | 76.2% | 0 |
| August 2025 | 26 | 25 | 80.0% | 1 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 31 | 31 | 77.4% | 0 |
| November 2025 | 30 | 27 | 66.7% | 3 |
| December 2025 | 26 | 25 | 76.0% | 1 |
| January 2026 | 31 | 30 | 63.3% | 1 |
| February 2026 | 28 | 28 | 64.3% | 0 |
| March 2026 | 31 | 31 | 71.0% | 0 |
| April 2026 | 29 | 27 | 77.8% | 2 |
| May 2026 | 25 | 25 | 92.0% | 0 |
| June 2026 | 24 | 24 | 83.3% | 0 |
| July 2026 | 31 | 31 | 90.3% | 0 |