OO4890
OO4890 (SkyWest Airlines) is a multi-stop service on 19 routes, busiest Los Angeles to Tulsa. Of 890 departures recorded from October 2024 to July 2026, 87.8% left on time, according to the US BTS.
- On-time departures87.8%of 890 flights
- Average delay3.9 min
- July 202662▲ 6.9%vs July 2025
- Cancelled1.5%
- Legs flown under this number19
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 | 56 | 26 | ▼ 53.6% |
| February | 40 | 28 | ▼ 30.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 42 | ▲ 35.5% |
| June | 56 | 60 | ▲ 7.1% |
| July | 58 | 62 | ▲ 6.9% |
| August | 36 | – | – |
| September | 56 | – | – |
| October | 36 | – | in progress |
| November | 30 | – | – |
| December | 18 | – | – |
| Year to date (Jan–Jul) | 302 | 279 | ▼ 7.6% |
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 | 94.6% | 84.6% | ▼ 10.6% |
| February | 82.5% | 78.6% | ▼ 4.8% |
| March | 80.0% | 93.3% | ▲ 16.7% |
| April | 100.0% | 90.0% | ▼ 10.0% |
| May | 96.8% | 92.5% | ▼ 4.4% |
| June | 85.7% | 78.6% | ▼ 8.3% |
| July | 89.7% | 85.5% | ▼ 4.7% |
| August | 71.4% | – | – |
| September | 83.3% | – | – |
| October | 100.0% | – | in progress |
| November | 93.3% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 89.9% | 86.2% | ▼ 4.2% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 4 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 2 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 7 | ▲ 600.0% |
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 98.5% 877
- Cancelled 1.5% 13
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAX TUL Los Angeles International Airport – Tulsa International Airport | 2,060 | -0.1 min | 92.0% | 299 |
| DFW ACT Dallas Fort Worth International Airport – Waco Regional Airport | 144 | 6.8 min | 82.6% | 72 |
| ACT DFW Waco Regional Airport – Dallas Fort Worth International Airport | 144 | 11.4 min | 84.1% | 72 |
| PHX ONT Phoenix Sky Harbor International Airport – Ontario International Airport | 522 | -3.8 min | 96.8% | 64 |
| ONT PHX Ontario International Airport – Phoenix Sky Harbor International Airport | 522 | -0.7 min | 93.7% | 64 |
| OKC ORD OKC Will Rogers World Airport – Chicago O'Hare International Airport | 1,114 | 4.4 min | 85.5% | 62 |
| ORD OKC Chicago O'Hare International Airport – OKC Will Rogers World Airport | 1,114 | 4.7 min | 84.5% | 58 |
| SEA LAX Seattle–Tacoma International Airport – Los Angeles International Airport | 1,537 | 5.1 min | 90.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 87.5% | 0 |
| November 2024 | 58 | 56 | 85.7% | 2 |
| December 2024 | 35 | 35 | 91.4% | 0 |
| January 2025 | 56 | 56 | 94.6% | 0 |
| February 2025 | 40 | 40 | 82.5% | 0 |
| March 2025 | 31 | 30 | 80.0% | 1 |
| April 2025 | 30 | 30 | 100.0% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 56 | 56 | 85.7% | 0 |
| July 2025 | 58 | 58 | 89.7% | 0 |
| August 2025 | 36 | 35 | 71.4% | 1 |
| September 2025 | 56 | 54 | 83.3% | 2 |
| October 2025 | 36 | 36 | 100.0% | 0 |
| November 2025 | 30 | 30 | 93.3% | 0 |
| December 2025 | 18 | 18 | 100.0% | 0 |
| January 2026 | 26 | 26 | 84.6% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 30 | 93.3% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 42 | 40 | 92.5% | 2 |
| June 2026 | 60 | 56 | 78.6% | 4 |
| July 2026 | 62 | 62 | 85.5% | 0 |