DL2166
DL2166 (Delta Air Lines) is a multi-stop service on 7 routes, busiest San Francisco to Salt Lake City. Of 343 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 343 flights
- Average delay12.2 min
- July 202627▲ 17.4%vs July 2025
- Cancelled0.3%
- 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 periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 6 | – | – |
| April | 19 | – | – |
| May | 29 | 25 | ▼ 13.8% |
| June | 25 | 27 | ▲ 8.0% |
| July | 23 | 27 | ▲ 17.4% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 23 | – | in progress |
| November | 18 | – | – |
| December | 17 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 66.7% | – | – |
| April | 94.7% | – | – |
| May | 58.6% | 88.0% | ▲ 50.1% |
| June | 64.0% | 73.1% | ▲ 14.2% |
| July | 82.6% | 85.2% | ▲ 3.1% |
| August | 75.0% | – | – |
| September | 94.1% | – | – |
| October | 82.6% | – | in progress |
| November | 77.8% | – | – |
| December | 70.6% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | 0 | – | – |
| April | 0 | – | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | 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 99.7% 342
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO SLC San Francisco International Airport – Salt Lake City International Airport | 962 | 13.5 min | 78.7% | 136 |
| LAX BOS Los Angeles International Airport – Boston Logan International Airport | 4,193 | 15.8 min | 82.1% | 79 |
| DTW IND Detroit Metropolitan Wayne County Airport – Indianapolis International Airport | 372 | 2.3 min | 85.1% | 67 |
| CLT MSP Charlotte Douglas International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,496 | 27.5 min | 53.1% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 18 | 18 | 83.3% | 0 |
| March 2025 | 6 | 6 | 66.7% | 0 |
| April 2025 | 19 | 19 | 94.7% | 0 |
| May 2025 | 29 | 29 | 58.6% | 0 |
| June 2025 | 25 | 25 | 64.0% | 0 |
| July 2025 | 23 | 23 | 82.6% | 0 |
| August 2025 | 20 | 20 | 75.0% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 23 | 23 | 82.6% | 0 |
| November 2025 | 18 | 18 | 77.8% | 0 |
| December 2025 | 17 | 17 | 70.6% | 0 |
| May 2026 | 25 | 25 | 88.0% | 0 |
| June 2026 | 27 | 26 | 73.1% | 1 |
| July 2026 | 27 | 27 | 85.2% | 0 |