OO3631
OO3631 (SkyWest Airlines) is a multi-stop service on 11 routes, busiest Chicago to Detroit. Of 403 departures recorded from October 2024 to April 2026, 84.1% left on time, according to the US BTS.
- On-time departures84.1%of 403 flights
- Average delay8.6 min
- April 202611▼ 62.1%vs April 2025
- Cancelled0.0%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | 24 | ▲ 300.0% |
| February | 8 | 22 | ▲ 175.0% |
| March | 27 | 27 | 0.0% |
| April | 29 | 11 | ▼ 62.1% |
| May | 6 | – | – |
| June | 21 | – | – |
| July | 27 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 12 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Apr) | 70 | 84 | ▲ 20.0% |
according to the US BTS · October 2024 → April 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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | 83.3% | 0.0% |
| February | 100.0% | 86.4% | ▼ 13.6% |
| March | 85.2% | 74.1% | ▼ 13.1% |
| April | 89.7% | 100.0% | ▲ 11.5% |
| May | 66.7% | – | – |
| June | 81.0% | – | – |
| July | 81.5% | – | – |
| August | 87.1% | – | – |
| September | 86.7% | – | – |
| October | 87.1% | – | in progress |
| November | 100.0% | – | – |
| December | 84.6% | – | – |
| Year-to-date average (Jan–Apr) | 89.5% | 85.9% | ▼ 4.0% |
according to the US BTS · October 2024 → April 2026
Average departure delay by month
according to the US BTS · October 2024 → April 2026
Cancelled departures by month
The most recent periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Apr) | 0 | 0 |
according to the US BTS · October 2024 → April 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 100.0% 403
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Apr 19, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW DTW Chicago Midway International Airport – Detroit Metropolitan Wayne County Airport | 367 | 4.9 min | 85.8% | 148 |
| ABQ SLC Albuquerque International Sunport – Salt Lake City International Airport | 794 | 8.9 min | 81.4% | 102 |
| IAD DTW Washington Dulles International Airport – Detroit Metropolitan Wayne County Airport | 616 | 37.1 min | 73.7% | 38 |
| ALB DTW Albany International Airport – Detroit Metropolitan Wayne County Airport | 785 | 5.3 min | 88.9% | 36 |
| DTW LAN Detroit Metropolitan Wayne County Airport – Capital Region International Airport | 119 | 1.7 min | 86.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 83.3% | 0 |
| December 2024 | 28 | 28 | 71.4% | 0 |
| January 2025 | 6 | 6 | 83.3% | 0 |
| February 2025 | 8 | 8 | 100.0% | 0 |
| March 2025 | 27 | 27 | 85.2% | 0 |
| April 2025 | 29 | 29 | 89.7% | 0 |
| May 2025 | 6 | 6 | 66.7% | 0 |
| June 2025 | 21 | 21 | 81.0% | 0 |
| July 2025 | 27 | 27 | 81.5% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 12 | 12 | 100.0% | 0 |
| December 2025 | 13 | 13 | 84.6% | 0 |
| January 2026 | 24 | 24 | 83.3% | 0 |
| February 2026 | 22 | 22 | 86.4% | 0 |
| March 2026 | 27 | 27 | 74.1% | 0 |
| April 2026 | 11 | 11 | 100.0% | 0 |