DL803
DL803 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Seattle to Dallas-Fort Worth. Of 893 departures recorded from October 2024 to July 2026, 81.5% left on time, according to the US BTS.
- On-time departures81.5%of 893 flights
- Average delay12.7 min
- July 202636▲ 800.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number4
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 | 34 | 61 | ▲ 79.4% |
| February | 28 | 56 | ▲ 100.0% |
| March | 31 | 62 | ▲ 100.0% |
| April | 30 | 60 | ▲ 100.0% |
| May | 51 | 60 | ▲ 17.6% |
| June | 16 | 58 | ▲ 262.5% |
| July | 4 | 36 | ▲ 800.0% |
| August | 23 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 40 | – | – |
| Year to date (Jan–Jul) | 194 | 393 | ▲ 102.6% |
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 | 69.7% | 70.2% | ▲ 0.7% |
| February | 78.6% | 78.6% | 0.0% |
| March | 83.9% | 85.0% | ▲ 1.3% |
| April | 80.0% | 85.0% | ▲ 6.3% |
| May | 90.2% | 88.3% | ▼ 2.1% |
| June | 81.3% | 75.9% | ▼ 6.6% |
| July | 100.0% | 86.1% | ▼ 13.9% |
| August | 95.7% | – | – |
| September | 96.7% | – | – |
| October | 93.6% | – | in progress |
| November | 75.9% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 83.4% | 81.3% | ▼ 2.5% |
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 | 1 | 4 | ▲ 300.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| 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) | 1 | 6 | ▲ 500.0% |
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 99.2% 886
- Cancelled 0.8% 7
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA DFW Seattle–Tacoma International Airport – Dallas Fort Worth International Airport | 2,668 | 9.8 min | 81.9% | 463 |
| DFW SEA Dallas Fort Worth International Airport – Seattle–Tacoma International Airport | 2,668 | 20.1 min | 77.4% | 295 |
| LAS MSP Harry Reid International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,088 | 6.6 min | 88.5% | 130 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 39 | 39 | 89.7% | 0 |
| November 2024 | 58 | 58 | 67.2% | 0 |
| December 2024 | 56 | 56 | 82.1% | 0 |
| January 2025 | 34 | 33 | 69.7% | 1 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 51 | 51 | 90.2% | 0 |
| June 2025 | 16 | 16 | 81.3% | 0 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 23 | 23 | 95.7% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 29 | 29 | 75.9% | 0 |
| December 2025 | 40 | 40 | 70.0% | 0 |
| January 2026 | 61 | 57 | 70.2% | 4 |
| February 2026 | 56 | 56 | 78.6% | 0 |
| March 2026 | 62 | 60 | 85.0% | 2 |
| April 2026 | 60 | 60 | 85.0% | 0 |
| May 2026 | 60 | 60 | 88.3% | 0 |
| June 2026 | 58 | 58 | 75.9% | 0 |
| July 2026 | 36 | 36 | 86.1% | 0 |