DL2199
DL2199 (Delta Air Lines) is a multi-stop service on 9 routes, busiest Boston to Denver. Of 238 departures recorded from October 2024 to July 2026, 75.4% left on time, according to the US BTS.
- On-time departures75.4%of 238 flights
- Average delay16.5 min
- July 202614▼ 50.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 23 | – | – |
| April | 13 | – | – |
| May | 4 | 23 | ▲ 475.0% |
| June | 16 | 6 | ▼ 62.5% |
| July | 28 | 14 | ▼ 50.0% |
| August | 7 | – | – |
| September | 1 | – | – |
| October | – | – | in progress |
| November | 22 | – | – |
| December | 19 | – | – |
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 periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 69.6% | – | – |
| April | 100.0% | – | – |
| May | 100.0% | 73.9% | ▼ 26.1% |
| June | 43.8% | 100.0% | ▲ 128.6% |
| July | 66.7% | 57.1% | ▼ 14.3% |
| August | 71.4% | – | – |
| September | 0.0% | – | – |
| October | – | – | in progress |
| November | 72.7% | – | – |
| December | 79.0% | – | – |
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 periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 0 | – | – |
| April | 1 | – | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| 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% 236
- 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS DEN Boston Logan International Airport – Denver International Airport | 2,816 | 23.1 min | 59.2% | 50 |
| CVG ATL Cincinnati Northern Kentucky International Airport – Hartsfield Jackson Atlanta International Airport | 602 | 15.7 min | 72.1% | 43 |
| SFO MSP San Francisco International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,551 | 17.5 min | 75.6% | 41 |
| TPA DTW Tampa International Airport – Detroit Metropolitan Wayne County Airport | 1,585 | 8.9 min | 80.0% | 36 |
| SNA SEA John Wayne Orange County International Airport – Seattle–Tacoma International Airport | 1,576 | 35.0 min | 78.1% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 26 | 26 | 84.6% | 0 |
| December 2024 | 16 | 16 | 81.3% | 0 |
| March 2025 | 23 | 23 | 69.6% | 0 |
| April 2025 | 13 | 12 | 100.0% | 1 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 16 | 16 | 43.8% | 0 |
| July 2025 | 28 | 27 | 66.7% | 1 |
| August 2025 | 7 | 7 | 71.4% | 0 |
| September 2025 | 1 | 1 | 0.0% | 0 |
| November 2025 | 22 | 22 | 72.7% | 0 |
| December 2025 | 19 | 19 | 79.0% | 0 |
| May 2026 | 23 | 23 | 73.9% | 0 |
| June 2026 | 6 | 6 | 100.0% | 0 |
| July 2026 | 14 | 14 | 57.1% | 0 |