DL1602
DL1602 (Delta Air Lines) is a multi-stop service on 15 routes, busiest Chicago to Boston. Of 483 departures recorded from October 2024 to July 2026, 79.1% left on time, according to the US BTS.
- On-time departures79.1%of 483 flights
- Average delay11.2 min
- July 202615▼ 51.6%vs July 2025
- Cancelled1.9%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 30 | ▲ 650.0% |
| February | – | 43 | – |
| March | – | 18 | – |
| April | 2 | 32 | ▲ 1,500.0% |
| May | 22 | 36 | ▲ 63.6% |
| June | 29 | 30 | ▲ 3.4% |
| July | 31 | 15 | ▼ 51.6% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 85.7% | ▲ 14.3% |
| February | – | 57.5% | – |
| March | – | 88.9% | – |
| April | 100.0% | 62.5% | ▼ 37.5% |
| May | 47.6% | 94.4% | ▲ 98.3% |
| June | 75.9% | 80.0% | ▲ 5.5% |
| July | 93.3% | 86.7% | ▼ 7.1% |
| August | 87.1% | – | – |
| September | 83.3% | – | – |
| October | 89.7% | – | in progress |
| November | 90.0% | – | – |
| December | 69.0% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | – | 3 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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% 474
- Cancelled 1.9% 9
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD BOS Chicago O'Hare International Airport – Boston Logan International Airport | 1,391 | 4.3 min | 85.9% | 194 |
| FLL BOS Fort Lauderdale Hollywood International Airport – Boston Logan International Airport | 1,994 | 19.6 min | 66.7% | 49 |
| MSP FCA Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Glacier Park International Airport | 1,646 | 4.7 min | 84.6% | 39 |
| LEX ATL Blue Grass Airport – Hartsfield Jackson Atlanta International Airport | 489 | -1.5 min | 83.9% | 31 |
| DTW SLC Detroit Metropolitan Wayne County Airport – Salt Lake City International Airport | 2,378 | 1.7 min | 90.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 66.7% | 0 |
| November 2024 | 12 | 12 | 100.0% | 0 |
| December 2024 | 16 | 16 | 68.8% | 0 |
| January 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 2 | 2 | 100.0% | 0 |
| May 2025 | 22 | 21 | 47.6% | 1 |
| June 2025 | 29 | 29 | 75.9% | 0 |
| July 2025 | 31 | 30 | 93.3% | 1 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 30 | 29 | 89.7% | 1 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 30 | 29 | 69.0% | 1 |
| January 2026 | 30 | 28 | 85.7% | 2 |
| February 2026 | 43 | 40 | 57.5% | 3 |
| March 2026 | 18 | 18 | 88.9% | 0 |
| April 2026 | 32 | 32 | 62.5% | 0 |
| May 2026 | 36 | 36 | 94.4% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 15 | 15 | 86.7% | 0 |