OO5511
OO5511 (SkyWest Airlines) is a multi-stop service on 9 routes, busiest Springfield to Denver. Of 585 departures recorded from October 2024 to June 2026, 83.9% left on time, according to the US BTS.
- On-time departures83.9%of 585 flights
- Average delay11.3 min
- June 202623▼ 23.3%vs June 2025
- Cancelled1.0%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 9 | ▼ 71.0% |
| April | 30 | 20 | ▼ 33.3% |
| May | 31 | 29 | ▼ 6.5% |
| June | 30 | 23 | ▼ 23.3% |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jun) | 181 | 140 | ▼ 22.7% |
according to the US BTS · October 2024 → June 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 74.2% | 87.1% | ▲ 17.4% |
| February | 77.8% | 78.6% | ▲ 1.0% |
| March | 87.1% | 100.0% | ▲ 14.8% |
| April | 73.3% | 81.3% | ▲ 10.8% |
| May | 80.7% | 89.7% | ▲ 11.2% |
| June | 76.7% | 95.7% | ▲ 24.8% |
| July | 71.0% | – | – |
| August | 83.9% | – | – |
| September | 90.0% | – | – |
| October | 87.1% | – | in progress |
| November | 100.0% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jun) | 78.3% | 88.7% | ▲ 13.3% |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 4 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jun) | 1 | 4 | ▲ 300.0% |
according to the US BTS · October 2024 → June 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 99.0% 579
- Cancelled 1.0% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 24, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SGF DEN Springfield Branson National Airport – Denver International Airport | 1,023 | 13.9 min | 82.2% | 456 |
| PHX LAX Phoenix Sky Harbor International Airport – Los Angeles International Airport | 595 | 1.9 min | 90.4% | 52 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 31 | 74.2% | 0 |
| February 2025 | 28 | 27 | 77.8% | 1 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 31 | 31 | 71.0% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 29 | 28 | 100.0% | 1 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 9 | 9 | 100.0% | 0 |
| April 2026 | 20 | 16 | 81.3% | 4 |
| May 2026 | 29 | 29 | 89.7% | 0 |
| June 2026 | 23 | 23 | 95.7% | 0 |