DL1687
DL1687 (Delta Air Lines) is a multi-stop service on 14 routes, busiest Atlanta to Dulles. Of 811 departures recorded from October 2024 to July 2026, 76.1% left on time, according to the US BTS.
- On-time departures76.1%of 811 flights
- Average delay17.6 min
- July 202662▲ 34.8%vs July 2025
- Cancelled2.1%
- Legs flown under this number14
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 | 30 | 26 | ▼ 13.3% |
| February | 52 | 45 | ▼ 13.5% |
| March | 59 | 14 | ▼ 76.3% |
| April | 41 | 2 | ▼ 95.1% |
| May | 31 | 26 | ▼ 16.1% |
| June | 42 | 54 | ▲ 28.6% |
| July | 46 | 62 | ▲ 34.8% |
| August | 45 | – | – |
| September | 42 | – | – |
| October | 47 | – | in progress |
| November | 46 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 301 | 229 | ▼ 23.9% |
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 | 73.3% | 84.0% | ▲ 14.6% |
| February | 63.5% | 93.3% | ▲ 47.1% |
| March | 77.6% | 85.7% | ▲ 10.5% |
| April | 90.2% | 100.0% | ▲ 10.8% |
| May | 87.1% | 61.5% | ▼ 29.3% |
| June | 41.7% | 83.3% | ▲ 100.0% |
| July | 46.7% | 88.7% | ▲ 90.1% |
| August | 60.5% | – | – |
| September | 73.8% | – | – |
| October | 74.5% | – | in progress |
| November | 79.1% | – | – |
| December | 73.3% | – | – |
| Year-to-date average (Jan–Jul) | 68.6% | 85.2% | ▲ 24.3% |
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 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 6 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 8 | 1 | ▼ 87.5% |
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 97.9% 794
- Cancelled 2.1% 17
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 18 | 18 | 83.3% | 0 |
| January 2025 | 30 | 30 | 73.3% | 0 |
| February 2025 | 52 | 52 | 63.5% | 0 |
| March 2025 | 59 | 58 | 77.6% | 1 |
| April 2025 | 41 | 41 | 90.2% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 42 | 36 | 41.7% | 6 |
| July 2025 | 46 | 45 | 46.7% | 1 |
| August 2025 | 45 | 43 | 60.5% | 2 |
| September 2025 | 42 | 42 | 73.8% | 0 |
| October 2025 | 47 | 47 | 74.5% | 0 |
| November 2025 | 46 | 43 | 79.1% | 3 |
| December 2025 | 33 | 30 | 73.3% | 3 |
| January 2026 | 26 | 25 | 84.0% | 1 |
| February 2026 | 45 | 45 | 93.3% | 0 |
| March 2026 | 14 | 14 | 85.7% | 0 |
| April 2026 | 2 | 2 | 100.0% | 0 |
| May 2026 | 26 | 26 | 61.5% | 0 |
| June 2026 | 54 | 54 | 83.3% | 0 |
| July 2026 | 62 | 62 | 88.7% | 0 |