WN2511
WN2511 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Oakland to Denver. Of 625 departures recorded from October 2024 to July 2026, 71.9% left on time, according to the US BTS.
- On-time departures71.9%of 625 flights
- Average delay16.4 min
- July 202613▼ 78.7%vs July 2025
- Cancelled1.0%
- Legs flown under this number34
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 | 15 | 51 | ▲ 240.0% |
| February | 21 | 43 | ▲ 104.8% |
| March | 41 | 15 | ▼ 63.4% |
| April | 38 | 21 | ▼ 44.7% |
| May | 34 | 21 | ▼ 38.2% |
| June | 58 | 14 | ▼ 75.9% |
| July | 61 | 13 | ▼ 78.7% |
| August | 35 | – | – |
| September | 30 | – | – |
| October | 18 | – | in progress |
| November | 16 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 268 | 178 | ▼ 33.6% |
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 | 86.7% | 86.0% | ▼ 0.8% |
| February | 85.7% | 90.5% | ▲ 5.6% |
| March | 72.5% | 92.9% | ▲ 28.1% |
| April | 84.2% | 76.2% | ▼ 9.5% |
| May | 88.2% | 75.0% | ▼ 15.0% |
| June | 63.8% | 50.0% | ▼ 21.6% |
| July | 50.0% | 46.2% | ▼ 7.7% |
| August | 65.7% | – | – |
| September | 43.3% | – | – |
| October | 72.2% | – | in progress |
| November | 81.3% | – | – |
| December | 74.1% | – | – |
| Year-to-date average (Jan–Jul) | 75.9% | 73.8% | ▼ 2.7% |
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 | 1 | – |
| February | 0 | 1 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 99.0% 619
- Cancelled 1.0% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OAK DEN Oakland San Francisco Bay Airport – Denver International Airport | 1,537 | 22.6 min | 51.7% | 58 |
| PHX MCI Phoenix Sky Harbor International Airport – Kansas City International Airport | 1,677 | 3.7 min | 89.8% | 49 |
| HOU MCO William P. Hobby Airport – Orlando International Airport | 1,364 | 6.3 min | 91.1% | 46 |
| MDW ONT Chicago Midway International Airport – Ontario International Airport | 2,740 | 24.8 min | 63.6% | 44 |
| ONT LAS Ontario International Airport – Harry Reid International Airport | 317 | 51.8 min | 48.8% | 43 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 8.7 min | 88.1% | 42 |
| PHX SAT Phoenix Sky Harbor International Airport – San Antonio International Airport | 1,354 | 9.9 min | 75.6% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 52.6% | 0 |
| November 2024 | 20 | 20 | 90.0% | 0 |
| December 2024 | 14 | 14 | 57.1% | 0 |
| January 2025 | 15 | 15 | 86.7% | 0 |
| February 2025 | 21 | 21 | 85.7% | 0 |
| March 2025 | 41 | 40 | 72.5% | 1 |
| April 2025 | 38 | 38 | 84.2% | 0 |
| May 2025 | 34 | 34 | 88.2% | 0 |
| June 2025 | 58 | 58 | 63.8% | 0 |
| July 2025 | 61 | 60 | 50.0% | 1 |
| August 2025 | 35 | 35 | 65.7% | 0 |
| September 2025 | 30 | 30 | 43.3% | 0 |
| October 2025 | 18 | 18 | 72.2% | 0 |
| November 2025 | 16 | 16 | 81.3% | 0 |
| December 2025 | 27 | 27 | 74.1% | 0 |
| January 2026 | 51 | 50 | 86.0% | 1 |
| February 2026 | 43 | 42 | 90.5% | 1 |
| March 2026 | 15 | 14 | 92.9% | 1 |
| April 2026 | 21 | 21 | 76.2% | 0 |
| May 2026 | 21 | 20 | 75.0% | 1 |
| June 2026 | 14 | 14 | 50.0% | 0 |
| July 2026 | 13 | 13 | 46.2% | 0 |