DL408
DL408 (Delta Air Lines) is a multi-stop service on 5 routes, busiest Boston to Las Vegas. Of 529 departures recorded from October 2024 to July 2026, 74.9% left on time, according to the US BTS.
- On-time departures74.9%of 529 flights
- Average delay18.8 min
- July 202624▼ 4.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 11 | 22 | ▲ 100.0% |
| February | 8 | 22 | ▲ 175.0% |
| March | 25 | 30 | ▲ 20.0% |
| April | 30 | 30 | 0.0% |
| May | 29 | 21 | ▼ 27.6% |
| June | 26 | 2 | ▼ 92.3% |
| July | 25 | 24 | ▼ 4.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 154 | 151 | ▼ 1.9% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 81.8% | 66.7% | ▼ 18.5% |
| February | 75.0% | 81.0% | ▲ 7.9% |
| March | 68.0% | 86.7% | ▲ 27.5% |
| April | 76.7% | 80.0% | ▲ 4.3% |
| May | 65.5% | 60.0% | ▼ 8.4% |
| June | 73.1% | 100.0% | ▲ 36.8% |
| July | 72.0% | 75.0% | ▲ 4.2% |
| August | 74.2% | – | – |
| September | 63.3% | – | – |
| October | 61.3% | – | in progress |
| November | 76.7% | – | – |
| December | 67.9% | – | – |
| Year-to-date average (Jan–Jul) | 73.2% | 78.5% | ▲ 7.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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 99.4% 526
- Cancelled 0.6% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 30, 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 |
|---|---|---|---|---|
| BOS LAS Boston Logan International Airport – Harry Reid International Airport | 3,822 | 16.6 min | 77.3% | 302 |
| LAS BOS Harry Reid International Airport – Boston Logan International Airport | 3,822 | 24.7 min | 69.7% | 185 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 100.0% | 0 |
| November 2024 | 27 | 27 | 92.6% | 0 |
| December 2024 | 28 | 28 | 82.1% | 0 |
| January 2025 | 11 | 11 | 81.8% | 0 |
| February 2025 | 8 | 8 | 75.0% | 0 |
| March 2025 | 25 | 25 | 68.0% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 29 | 29 | 65.5% | 0 |
| June 2025 | 26 | 26 | 73.1% | 0 |
| July 2025 | 25 | 25 | 72.0% | 0 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 30 | 30 | 63.3% | 0 |
| October 2025 | 31 | 31 | 61.3% | 0 |
| November 2025 | 30 | 30 | 76.7% | 0 |
| December 2025 | 28 | 28 | 67.9% | 0 |
| January 2026 | 22 | 21 | 66.7% | 1 |
| February 2026 | 22 | 21 | 81.0% | 1 |
| March 2026 | 30 | 30 | 86.7% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 21 | 20 | 60.0% | 1 |
| June 2026 | 2 | 2 | 100.0% | 0 |
| July 2026 | 24 | 24 | 75.0% | 0 |