DL2521
DL2521 (Delta Air Lines) is a multi-stop service on 7 routes, busiest Raleigh to Minneapolis. Of 872 departures recorded from October 2024 to July 2026, 83.2% left on time, according to the US BTS.
- On-time departures83.2%of 872 flights
- Average delay7.9 min
- July 202648▼ 22.6%vs July 2025
- Cancelled2.0%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 56 | – |
| February | – | 56 | – |
| March | – | 62 | – |
| April | 1 | 60 | ▲ 5,900.0% |
| May | 50 | 52 | ▲ 4.0% |
| June | 60 | 46 | ▼ 23.3% |
| July | 62 | 48 | ▼ 22.6% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 56 | – | in progress |
| November | 52 | – | – |
| December | 26 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 79.6% | – |
| February | – | 82.4% | – |
| March | – | 79.7% | – |
| April | 100.0% | 82.1% | ▼ 17.9% |
| May | 86.0% | 90.4% | ▲ 5.1% |
| June | 72.9% | 78.3% | ▲ 7.4% |
| July | 71.0% | 79.2% | ▲ 11.6% |
| August | 90.3% | – | – |
| September | 75.0% | – | – |
| October | 98.2% | – | in progress |
| November | 90.4% | – | – |
| December | 83.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 2 | – |
| February | – | 5 | – |
| March | – | 3 | – |
| April | 0 | 4 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
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 98.1% 855
- Cancelled 1.9% 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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| RDU MSP Raleigh-Durham International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,576 | 12.7 min | 79.6% | 269 |
| MSP RDU Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Raleigh-Durham International Airport | 1,576 | 3.5 min | 86.6% | 269 |
| SRQ JFK Sarasota Bradenton International Airport – John F. Kennedy International Airport | 1,678 | 7.8 min | 78.0% | 135 |
| JFK SRQ John F. Kennedy International Airport – Sarasota Bradenton International Airport | 1,678 | 9.4 min | 84.3% | 135 |
| PHX MSP Phoenix Sky Harbor International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,051 | 9.5 min | 84.9% | 33 |
| MCO JFK Orlando International Airport – John F. Kennedy International Airport | 1,521 | -3.1 min | 100.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 27 | 27 | 100.0% | 0 |
| December 2024 | 16 | 16 | 68.8% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| May 2025 | 50 | 50 | 86.0% | 0 |
| June 2025 | 60 | 59 | 72.9% | 1 |
| July 2025 | 62 | 62 | 71.0% | 0 |
| August 2025 | 62 | 62 | 90.3% | 0 |
| September 2025 | 60 | 60 | 75.0% | 0 |
| October 2025 | 56 | 56 | 98.2% | 0 |
| November 2025 | 52 | 52 | 90.4% | 0 |
| December 2025 | 26 | 24 | 83.3% | 2 |
| January 2026 | 56 | 54 | 79.6% | 2 |
| February 2026 | 56 | 51 | 82.4% | 5 |
| March 2026 | 62 | 59 | 79.7% | 3 |
| April 2026 | 60 | 56 | 82.1% | 4 |
| May 2026 | 52 | 52 | 90.4% | 0 |
| June 2026 | 46 | 46 | 78.3% | 0 |
| July 2026 | 48 | 48 | 79.2% | 0 |