DL478
DL478 (Delta Air Lines) is a multi-stop service on 14 routes, busiest Atlanta to Portland. Of 699 departures recorded from October 2024 to July 2026, 83.8% left on time, according to the US BTS.
- On-time departures83.8%of 699 flights
- Average delay8.8 min
- July 20264▼ 85.2%vs July 2025
- Cancelled1.0%
- Legs flown under this number14
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 | 52 | 35 | ▼ 32.7% |
| February | 56 | 28 | ▼ 50.0% |
| March | 44 | 31 | ▼ 29.5% |
| April | 33 | 30 | ▼ 9.1% |
| May | 34 | 31 | ▼ 8.8% |
| June | 29 | 6 | ▼ 79.3% |
| July | 27 | 4 | ▼ 85.2% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 43 | – | – |
| Year to date (Jan–Jul) | 275 | 165 | ▼ 40.0% |
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 | 94.2% | 79.4% | ▼ 15.7% |
| February | 91.1% | 77.8% | ▼ 14.6% |
| March | 88.6% | 67.7% | ▼ 23.6% |
| April | 78.8% | 93.3% | ▲ 18.5% |
| May | 91.2% | 64.5% | ▼ 29.2% |
| June | 75.0% | 83.3% | ▲ 11.1% |
| July | 69.2% | 75.0% | ▲ 8.3% |
| August | 80.7% | – | – |
| September | 90.0% | – | – |
| October | 87.1% | – | in progress |
| November | 76.7% | – | – |
| December | 72.5% | – | – |
| Year-to-date average (Jan–Jul) | 84.0% | 77.3% | ▼ 8.0% |
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 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.0% 692
- Cancelled 1.0% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL PDX Hartsfield Jackson Atlanta International Airport – Portland International Airport | 3,489 | 9.3 min | 79.3% | 333 |
| LAX AUS Los Angeles International Airport – Austin Bergstrom International Airport | 1,995 | -3.5 min | 96.8% | 62 |
| AUS LAX Austin Bergstrom International Airport – Los Angeles International Airport | 1,995 | 14.4 min | 88.7% | 62 |
| MSY MSP Louis Armstrong New Orleans International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,676 | 5.1 min | 80.4% | 51 |
| MSP MSY Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Louis Armstrong New Orleans International Airport | 1,676 | 3.8 min | 90.2% | 51 |
| FAY ATL Fayetteville Regional Airport - Grannis Field – Hartsfield Jackson Atlanta International Airport | 531 | -2.2 min | 94.7% | 38 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 38 | 38 | 92.1% | 0 |
| November 2024 | 38 | 38 | 97.4% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 52 | 52 | 94.2% | 0 |
| February 2025 | 56 | 56 | 91.1% | 0 |
| March 2025 | 44 | 44 | 88.6% | 0 |
| April 2025 | 33 | 33 | 78.8% | 0 |
| May 2025 | 34 | 34 | 91.2% | 0 |
| June 2025 | 29 | 28 | 75.0% | 1 |
| July 2025 | 27 | 26 | 69.2% | 1 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 30 | 30 | 76.7% | 0 |
| December 2025 | 43 | 40 | 72.5% | 3 |
| January 2026 | 35 | 34 | 79.4% | 1 |
| February 2026 | 28 | 27 | 77.8% | 1 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 64.5% | 0 |
| June 2026 | 6 | 6 | 83.3% | 0 |
| July 2026 | 4 | 4 | 75.0% | 0 |