DL1021
DL1021 (Delta Air Lines) is a multi-stop service on 9 routes, busiest New York to Orlando. Of 913 departures recorded from October 2024 to July 2026, 78.0% left on time, according to the US BTS.
- On-time departures78.0%of 913 flights
- Average delay17.0 min
- July 202647▼ 24.2%vs July 2025
- Cancelled2.1%
- Legs flown under this number9
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 44 | 26 | ▼ 40.9% |
| February | 44 | 32 | ▼ 27.3% |
| March | 37 | 48 | ▲ 29.7% |
| April | 30 | 37 | ▲ 23.3% |
| May | 19 | 45 | ▲ 136.8% |
| June | 50 | 45 | ▼ 10.0% |
| July | 62 | 47 | ▼ 24.2% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 53 | – | – |
| December | 50 | – | – |
| Year to date (Jan–Jul) | 286 | 280 | ▼ 2.1% |
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 | 93.2% | 80.0% | ▼ 14.1% |
| February | 93.2% | 96.9% | ▲ 4.0% |
| March | 67.6% | 70.8% | ▲ 4.8% |
| April | 93.3% | 91.4% | ▼ 2.0% |
| May | 73.7% | 80.0% | ▲ 8.6% |
| June | 67.4% | 73.3% | ▲ 8.9% |
| July | 69.0% | 55.6% | ▼ 19.4% |
| August | 75.0% | – | – |
| September | 93.3% | – | – |
| October | 78.3% | – | in progress |
| November | 76.5% | – | – |
| December | 66.0% | – | – |
| Year-to-date average (Jan–Jul) | 79.6% | 78.3% | ▼ 1.7% |
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 | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 4 | 2 | ▼ 50.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 2 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 5 | 5 | 0.0% |
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.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.9% 894
- Cancelled 2.1% 19
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA MCO LaGuardia Airport – Orlando International Airport | 1,531 | 6.3 min | 86.9% | 218 |
| ATL GSP Hartsfield Jackson Atlanta International Airport – Greenville-Spartanburg International Airport | 247 | 11.5 min | 79.6% | 214 |
| MCO LGA Orlando International Airport – LaGuardia Airport | 1,531 | 35.9 min | 65.0% | 188 |
| PSP MSP Palm Springs International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,336 | 10.2 min | 80.7% | 83 |
| GSP ATL Greenville-Spartanburg International Airport – Hartsfield Jackson Atlanta International Airport | 247 | 22.8 min | 70.1% | 79 |
| MSP PSP Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Palm Springs International Airport | 2,336 | -1.0 min | 93.6% | 47 |
| RDU BOS Raleigh-Durham International Airport – Boston Logan International Airport | 984 | 22.7 min | 75.0% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 16 | 16 | 75.0% | 0 |
| December 2024 | 32 | 32 | 71.9% | 0 |
| January 2025 | 44 | 44 | 93.2% | 0 |
| February 2025 | 44 | 44 | 93.2% | 0 |
| March 2025 | 37 | 37 | 67.6% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 19 | 19 | 73.7% | 0 |
| June 2025 | 50 | 49 | 67.4% | 1 |
| July 2025 | 62 | 58 | 69.0% | 4 |
| August 2025 | 62 | 60 | 75.0% | 2 |
| September 2025 | 60 | 60 | 93.3% | 0 |
| October 2025 | 62 | 60 | 78.3% | 2 |
| November 2025 | 53 | 51 | 76.5% | 2 |
| December 2025 | 50 | 47 | 66.0% | 3 |
| January 2026 | 26 | 25 | 80.0% | 1 |
| February 2026 | 32 | 32 | 96.9% | 0 |
| March 2026 | 48 | 48 | 70.8% | 0 |
| April 2026 | 37 | 35 | 91.4% | 2 |
| May 2026 | 45 | 45 | 80.0% | 0 |
| June 2026 | 45 | 45 | 73.3% | 0 |
| July 2026 | 47 | 45 | 55.6% | 2 |