DL2543
DL2543 (Delta Air Lines) is a multi-stop service on 13 routes, busiest Seattle to Denver. Of 249 departures recorded from October 2024 to July 2026, 62.4% left on time, according to the US BTS.
- On-time departures62.4%of 249 flights
- Average delay25.9 min
- July 202662
- Cancelled0.8%
- Legs flown under this number13
Recorded departures by month
Short series — DL2543 has only 11 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.
Months without data are left blank.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 4 | – |
| February | 2 | – | – |
| March | – | – | – |
| April | 17 | – | – |
| May | 31 | 21 | ▼ 32.3% |
| June | 7 | 53 | ▲ 657.1% |
| July | – | 62 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 18 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Short series — DL2543 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 100.0% | – |
| February | 100.0% | – | – |
| March | – | – | – |
| April | 70.6% | – | – |
| May | 77.4% | 66.7% | ▼ 13.9% |
| June | 100.0% | 52.9% | ▼ 47.1% |
| July | – | 40.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 44.4% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Short series — DL2543 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Short series — DL2543 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | 0 | – | – |
| March | – | – | – |
| April | 0 | – | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 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% 247
- Cancelled 0.8% 2
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 DEN Seattle–Tacoma International Airport – Denver International Airport | 1,645 | 34.4 min | 46.3% | 55 |
| DEN SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 36.2 min | 42.6% | 55 |
| SAT DTW San Antonio International Airport – Detroit Metropolitan Wayne County Airport | 1,954 | -0.8 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 32 | 32 | 90.6% | 0 |
| December 2024 | 2 | 2 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| April 2025 | 17 | 17 | 70.6% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 7 | 7 | 100.0% | 0 |
| December 2025 | 18 | 18 | 44.4% | 0 |
| January 2026 | 4 | 4 | 100.0% | 0 |
| May 2026 | 21 | 21 | 66.7% | 0 |
| June 2026 | 53 | 51 | 52.9% | 2 |
| July 2026 | 62 | 62 | 40.3% | 0 |