OO3557
OO3557 (SkyWest Airlines) is a multi-stop service on 3 routes, busiest Seattle to San Jose. Of 233 departures recorded from April 2025 to December 2025, 88.8% left on time, according to the US BTS.
- On-time departures88.8%of 233 flights
- Average delay4.3 min
- December 202519
- Cancelled0.4%
- Legs flown under this number3
Recorded departures by month
Short series — OO3557 has only 9 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods9 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 17 | – |
| May | – | 31 | – |
| June | – | 24 | – |
| July | – | 31 | – |
| August | – | 29 | – |
| September | – | 23 | – |
| October | – | 31 | – |
| November | – | 28 | – |
| December | – | 19 | – |
according to the US BTS · April 2025 → December 2025
On-time departures by month
Short series — OO3557 has only 9 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods9 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 88.2% | – |
| May | – | 71.0% | – |
| June | – | 83.3% | – |
| July | – | 93.6% | – |
| August | – | 86.2% | – |
| September | – | 100.0% | – |
| October | – | 90.3% | – |
| November | – | 96.3% | – |
| December | – | 94.7% | – |
according to the US BTS · April 2025 → December 2025
Average departure delay by month
Short series — OO3557 has only 9 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · April 2025 → December 2025
Cancelled departures by month
Short series — OO3557 has only 9 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods9 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | 0 | – |
| September | – | 0 | – |
| October | – | 0 | – |
| November | – | 1 | – |
| December | – | 0 | – |
according to the US BTS · April 2025 → December 2025
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 99.6% 232
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Apr 14, 2025 → Dec 19, 2025
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA SJC Seattle–Tacoma International Airport – Mineta San Jose International Airport | 1,122 | 2.6 min | 91.8% | 184 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| April 2025 | 17 | 17 | 88.2% | 0 |
| May 2025 | 31 | 31 | 71.0% | 0 |
| June 2025 | 24 | 24 | 83.3% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 29 | 29 | 86.2% | 0 |
| September 2025 | 23 | 23 | 100.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 28 | 27 | 96.3% | 1 |
| December 2025 | 19 | 19 | 94.7% | 0 |