DL3148
DL3148 (Delta Air Lines) is a multi-stop service on 8 routes, busiest Detroit to Rochester. Of 135 departures recorded from October 2024 to July 2026, 81.2% left on time, according to the US BTS.
- On-time departures81.2%of 135 flights
- Average delay10.8 min
- July 202631
- Cancelled1.5%
- Legs flown under this number8
Recorded departures by month
Short series — DL3148 has only 10 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 4 | – | – |
| March | – | – | – |
| April | 15 | 16 | ▲ 6.7% |
| May | 26 | 5 | ▼ 80.8% |
| June | 6 | 24 | ▲ 300.0% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Short series — DL3148 has only 10 months so far. Enough to show the level now, not enough to read a trend.
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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 100.0% | – | – |
| March | – | – | – |
| April | 93.3% | 87.5% | ▼ 6.2% |
| May | 73.1% | 100.0% | ▲ 36.8% |
| June | 100.0% | 81.8% | ▼ 18.2% |
| July | – | 64.5% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Short series — DL3148 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Short series — DL3148 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 0 | – | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 98.5% 133
- Cancelled 1.5% 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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW ROC Detroit Metropolitan Wayne County Airport – Frederick Douglass Greater Rochester International Airport | 475 | 18.2 min | 71.7% | 55 |
| ATL SDF Hartsfield Jackson Atlanta International Airport – Louisville Muhammad Ali International Airport | 518 | 7.6 min | 81.8% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| February 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 15 | 15 | 93.3% | 0 |
| May 2025 | 26 | 26 | 73.1% | 0 |
| June 2025 | 6 | 6 | 100.0% | 0 |
| April 2026 | 16 | 16 | 87.5% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 24 | 22 | 81.8% | 2 |
| July 2026 | 31 | 31 | 64.5% | 0 |