OO3997
OO3997 (SkyWest Airlines) is a multi-stop service on 13 routes, busiest Seattle to Portland. Of 560 departures recorded from October 2024 to July 2026, 85.9% left on time, according to the US BTS.
- On-time departures85.9%of 560 flights
- Average delay9.7 min
- July 20266▼ 77.8%vs July 2025
- Cancelled1.1%
- Legs flown under this number13
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 | 36 | 7 | ▼ 80.6% |
| February | 26 | 5 | ▼ 80.8% |
| March | 29 | 48 | ▲ 65.5% |
| April | 30 | 40 | ▲ 33.3% |
| May | 56 | 30 | ▼ 46.4% |
| June | 34 | 30 | ▼ 11.8% |
| July | 27 | 6 | ▼ 77.8% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 16 | – | – |
| December | 16 | – | – |
| Year to date (Jan–Jul) | 238 | 166 | ▼ 30.3% |
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 | 80.6% | 0.0% | ▼ 100.0% |
| February | 92.3% | 0.0% | ▼ 100.0% |
| March | 96.6% | 59.1% | ▼ 38.8% |
| April | 93.3% | 90.0% | ▼ 3.6% |
| May | 100.0% | 90.0% | ▼ 10.0% |
| June | 97.1% | 66.7% | ▼ 31.3% |
| July | 81.5% | 50.0% | ▼ 38.6% |
| August | 89.7% | – | – |
| September | 93.3% | – | – |
| October | 96.3% | – | in progress |
| November | 100.0% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 91.6% | 50.8% | ▼ 44.5% |
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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 6 |
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% 554
- Cancelled 1.1% 6
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 6, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA PDX Seattle–Tacoma International Airport – Portland International Airport | 208 | 0.7 min | 91.4% | 338 |
| PIT DTW Pittsburgh International Airport – Detroit Metropolitan Wayne County Airport | 323 | 33.4 min | 67.7% | 36 |
| DTW PIT Detroit Metropolitan Wayne County Airport – Pittsburgh International Airport | 323 | 23.2 min | 76.5% | 36 |
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | -7.6 min | 100.0% | 32 |
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | -8.9 min | 100.0% | 32 |
| DTW FWA Detroit Metropolitan Wayne County Airport – Fort Wayne International Airport | 206 | 34.5 min | 60.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 83.3% | 0 |
| November 2024 | 6 | 6 | 100.0% | 0 |
| December 2024 | 20 | 20 | 80.0% | 0 |
| January 2025 | 36 | 36 | 80.6% | 0 |
| February 2025 | 26 | 26 | 92.3% | 0 |
| March 2025 | 29 | 29 | 96.6% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 56 | 56 | 100.0% | 0 |
| June 2025 | 34 | 34 | 97.1% | 0 |
| July 2025 | 27 | 27 | 81.5% | 0 |
| August 2025 | 29 | 29 | 89.7% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 27 | 27 | 96.3% | 0 |
| November 2025 | 16 | 16 | 100.0% | 0 |
| December 2025 | 16 | 16 | 100.0% | 0 |
| January 2026 | 7 | 5 | 0.0% | 2 |
| February 2026 | 5 | 5 | 0.0% | 0 |
| March 2026 | 48 | 44 | 59.1% | 4 |
| April 2026 | 40 | 40 | 90.0% | 0 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 6 | 6 | 50.0% | 0 |