DL3188
DL3188 (Delta Air Lines) is a multi-stop service on 5 routes, busiest Bozeman to Salt Lake City. Of 303 departures recorded from January 2025 to July 2026, 93.7% left on time, according to the US BTS.
- On-time departures93.7%of 303 flights
- Average delay-4.0 min
- July 202662▲ 100.0%vs July 2025
- Cancelled1.0%
- Legs flown under this number5
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 | 1 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 17 | – | – |
| May | 6 | – | – |
| June | 23 | 22 | ▼ 4.3% |
| July | 31 | 62 | ▲ 100.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 19 | – | – |
according to the US BTS · January 2025 → July 2026
On-time departures by month
Short series — DL3188 has only 11 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 94.1% | – | – |
| May | 66.7% | – | – |
| June | 95.7% | 77.3% | ▼ 19.2% |
| July | 100.0% | 95.0% | ▼ 5.0% |
| August | 93.6% | – | – |
| September | 100.0% | – | – |
| October | 93.6% | – | in progress |
| November | 96.7% | – | – |
| December | 89.5% | – | – |
according to the US BTS · April 2025 → July 2026
Average departure delay by month
Short series — DL3188 has only 11 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 · April 2025 → 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 | 1 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 0 | – | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · January 2025 → 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 99.0% 300
- Cancelled 1.0% 3
Share of all recorded flights in the period, all legs. · Jan 11, 2025 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BZN SLC Bozeman Yellowstone International Airport – Salt Lake City International Airport | 559 | -5.9 min | 95.9% | 195 |
| STL MSP St. Louis Lambert International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 722 | -2.0 min | 90.2% | 42 |
| MSP STL Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – St. Louis Lambert International Airport | 722 | -0.1 min | 90.2% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 1 | 0 | — | 1 |
| April 2025 | 17 | 17 | 94.1% | 0 |
| May 2025 | 6 | 6 | 66.7% | 0 |
| June 2025 | 23 | 23 | 95.7% | 0 |
| July 2025 | 31 | 31 | 100.0% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 30 | 30 | 96.7% | 0 |
| December 2025 | 19 | 19 | 89.5% | 0 |
| June 2026 | 22 | 22 | 77.3% | 0 |
| July 2026 | 62 | 60 | 95.0% | 2 |