DL1797
DL1797 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Boston to Orlando. Of 409 departures recorded from December 2024 to July 2026, 86.1% left on time, according to the US BTS.
- On-time departures86.1%of 409 flights
- Average delay8.3 min
- July 202662▲ 100.0%vs July 2025
- Cancelled1.7%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 4 | ▼ 20.0% |
| February | – | – | – |
| March | – | – | – |
| April | – | 2 | – |
| May | – | 56 | – |
| June | 23 | 60 | ▲ 160.9% |
| July | 31 | 62 | ▲ 100.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
according to the US BTS · December 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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.0% | 66.7% | ▲ 11.1% |
| February | – | – | – |
| March | – | – | – |
| April | – | 50.0% | – |
| May | – | 82.1% | – |
| June | 91.3% | 91.7% | ▲ 0.4% |
| July | 90.0% | 81.7% | ▼ 9.3% |
| August | 93.6% | – | – |
| September | 93.3% | – | – |
| October | 86.7% | – | in progress |
| November | 100.0% | – | – |
| December | 72.4% | – | – |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
according to the US BTS · December 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 98.3% 402
- Cancelled 1.7% 7
Share of all recorded flights in the period, all legs. · Dec 19, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS MCO Boston Logan International Airport – Orlando International Airport | 1,806 | 1.7 min | 92.7% | 195 |
| DTW RSW Detroit Metropolitan Wayne County Airport – Southwest Florida International Airport | 1,750 | 12.7 min | 87.1% | 94 |
| RSW DTW Southwest Florida International Airport – Detroit Metropolitan Wayne County Airport | 1,750 | 14.1 min | 82.4% | 86 |
| JFK SJU John F. Kennedy International Airport – Luis Munoz Marin International Airport | 2,578 | 18.9 min | 53.1% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 13 | 13 | 61.5% | 0 |
| January 2025 | 5 | 5 | 60.0% | 0 |
| June 2025 | 23 | 23 | 91.3% | 0 |
| July 2025 | 31 | 30 | 90.0% | 1 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 30 | 86.7% | 1 |
| November 2025 | 30 | 30 | 100.0% | 0 |
| December 2025 | 31 | 29 | 72.4% | 2 |
| January 2026 | 4 | 3 | 66.7% | 1 |
| April 2026 | 2 | 2 | 50.0% | 0 |
| May 2026 | 56 | 56 | 82.1% | 0 |
| June 2026 | 60 | 60 | 91.7% | 0 |
| July 2026 | 62 | 60 | 81.7% | 2 |