DL1861
DL1861 (Delta Air Lines) flies Atlanta to San Juan. Of 640 departures recorded from October 2024 to July 2026, 67.1% left on time, according to the US BTS.
- On-time departures67.1%of 640 flights
- Average delay21.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.3%
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 26 | ▼ 16.1% |
| February | 28 | 17 | ▼ 39.3% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 30 | 31 | ▲ 3.3% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 211 | 196 | ▼ 7.1% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 70.0% | 80.0% | ▲ 14.3% |
| February | 71.4% | 41.2% | ▼ 42.3% |
| March | 54.8% | 70.0% | ▲ 27.6% |
| April | 70.0% | 66.7% | ▼ 4.8% |
| May | 50.0% | 80.0% | ▲ 60.0% |
| June | 44.8% | 73.3% | ▲ 63.6% |
| July | 48.4% | 64.5% | ▲ 33.3% |
| August | 73.3% | – | – |
| September | 63.3% | – | – |
| October | 64.5% | – | in progress |
| November | 72.4% | – | – |
| December | 50.0% | – | – |
| Year-to-date average (Jan–Jul) | 58.5% | 68.0% | ▲ 16.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.8% 632
- Cancelled 1.3% 8
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL SJU Hartsfield Jackson Atlanta International Airport – Luis Munoz Marin International Airport | 2,491 | 21.6 min | 67.1% | 640 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 31 | 30 | 70.0% | 1 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 31 | 31 | 54.8% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 30 | 30 | 50.0% | 0 |
| June 2025 | 30 | 29 | 44.8% | 1 |
| July 2025 | 31 | 31 | 48.4% | 0 |
| August 2025 | 31 | 30 | 73.3% | 1 |
| September 2025 | 30 | 30 | 63.3% | 0 |
| October 2025 | 31 | 31 | 64.5% | 0 |
| November 2025 | 30 | 29 | 72.4% | 1 |
| December 2025 | 31 | 30 | 50.0% | 1 |
| January 2026 | 26 | 25 | 80.0% | 1 |
| February 2026 | 17 | 17 | 41.2% | 0 |
| March 2026 | 31 | 30 | 70.0% | 1 |
| April 2026 | 30 | 30 | 66.7% | 0 |
| May 2026 | 31 | 30 | 80.0% | 1 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 31 | 31 | 64.5% | 0 |