OO6521
OO6521 (SkyWest Airlines) is a multi-stop service on 8 routes, busiest Brownsville to Dallas-Fort Worth. Of 233 departures recorded from December 2024 to July 2025, 80.6% left on time, according to the US BTS.
- On-time departures80.6%of 233 flights
- Average delay23.4 min
- July 20252
- Cancelled2.6%
- Legs flown under this number8
Recorded departures by month
Short series — OO6521 has only 8 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 periods8 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | 25 | – |
| February | – | 28 | – |
| March | – | 33 | – |
| April | – | 60 | – |
| May | – | 62 | – |
| June | – | 22 | – |
| July | – | 2 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | 1 | – | – |
according to the US BTS · December 2024 → July 2025
On-time departures by month
Short series — OO6521 has only 8 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 periods8 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | 75.0% | – |
| February | – | 53.6% | – |
| March | – | 83.3% | – |
| April | – | 93.3% | – |
| May | – | 85.5% | – |
| June | – | 70.0% | – |
| July | – | 50.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | 100.0% | – | – |
according to the US BTS · December 2024 → July 2025
Average departure delay by month
Short series — OO6521 has only 8 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · December 2024 → July 2025
Cancelled departures by month
Short series — OO6521 has only 8 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods8 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 0 | – |
| March | – | 3 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 2 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · December 2024 → July 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 97.4% 227
- Cancelled 2.6% 6
Share of all recorded flights in the period, all legs. · Dec 31, 2024 → Jul 2, 2025
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BRO DFW Brownsville South Padre Island International Airport – Dallas Fort Worth International Airport | 778 | 37.7 min | 69.2% | 82 |
| PHX YUM Phoenix Sky Harbor International Airport – Yuma International Airport / Marine Corps Air Station Yuma | 258 | 1.6 min | 91.9% | 62 |
| YUM PHX Yuma International Airport / Marine Corps Air Station Yuma – Phoenix Sky Harbor International Airport | 258 | 20.0 min | 83.9% | 62 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 25 | 24 | 75.0% | 1 |
| February 2025 | 28 | 28 | 53.6% | 0 |
| March 2025 | 33 | 30 | 83.3% | 3 |
| April 2025 | 60 | 60 | 93.3% | 0 |
| May 2025 | 62 | 62 | 85.5% | 0 |
| June 2025 | 22 | 20 | 70.0% | 2 |
| July 2025 | 2 | 2 | 50.0% | 0 |