DL2508
DL2508 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Seattle to San Diego. Of 1,266 departures recorded from October 2024 to July 2026, 90.7% left on time, according to the US BTS.
- On-time departures90.7%of 1,266 flights
- Average delay1.8 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number2
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 | 62 | 62 | 0.0% |
| February | 44 | 44 | 0.0% |
| March | 56 | 62 | ▲ 10.7% |
| April | 60 | 60 | 0.0% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 56 | – | in progress |
| November | 50 | – | – |
| December | 58 | – | – |
| Year to date (Jan–Jul) | 406 | 412 | ▲ 1.5% |
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 | 83.9% | 90.3% | ▲ 7.7% |
| February | 88.6% | 95.5% | ▲ 7.7% |
| March | 96.4% | 83.3% | ▼ 13.6% |
| April | 91.7% | 93.3% | ▲ 1.8% |
| May | 91.9% | 100.0% | ▲ 8.8% |
| June | 88.3% | 96.6% | ▲ 9.3% |
| July | 95.2% | 87.1% | ▼ 8.5% |
| August | 93.3% | – | – |
| September | 96.7% | – | – |
| October | 83.9% | – | in progress |
| November | 86.0% | – | – |
| December | 87.9% | – | – |
| Year-to-date average (Jan–Jul) | 90.9% | 92.3% | ▲ 1.6% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 99.5% 1,260
- Cancelled 0.5% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA SAN Seattle–Tacoma International Airport – San Diego International Airport | 1,692 | -0.7 min | 92.4% | 633 |
| SAN SEA San Diego International Airport – Seattle–Tacoma International Airport | 1,692 | 4.2 min | 89.1% | 633 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 97.5% | 0 |
| November 2024 | 60 | 60 | 91.7% | 0 |
| December 2024 | 62 | 62 | 79.0% | 0 |
| January 2025 | 62 | 62 | 83.9% | 0 |
| February 2025 | 44 | 44 | 88.6% | 0 |
| March 2025 | 56 | 56 | 96.4% | 0 |
| April 2025 | 60 | 60 | 91.7% | 0 |
| May 2025 | 62 | 62 | 91.9% | 0 |
| June 2025 | 60 | 60 | 88.3% | 0 |
| July 2025 | 62 | 62 | 95.2% | 0 |
| August 2025 | 62 | 60 | 93.3% | 2 |
| September 2025 | 60 | 60 | 96.7% | 0 |
| October 2025 | 56 | 56 | 83.9% | 0 |
| November 2025 | 50 | 50 | 86.0% | 0 |
| December 2025 | 58 | 58 | 87.9% | 0 |
| January 2026 | 62 | 62 | 90.3% | 0 |
| February 2026 | 44 | 44 | 95.5% | 0 |
| March 2026 | 62 | 60 | 83.3% | 2 |
| April 2026 | 60 | 60 | 93.3% | 0 |
| May 2026 | 62 | 62 | 100.0% | 0 |
| June 2026 | 60 | 58 | 96.6% | 2 |
| July 2026 | 62 | 62 | 87.1% | 0 |