DL485
DL485 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Kailua-Kona to Seattle. Of 639 departures recorded from October 2024 to July 2026, 89.6% left on time, according to the US BTS.
- On-time departures89.6%of 639 flights
- Average delay1.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.9%
- Legs flown under this number3
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 | 26 | 30 | ▲ 15.4% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 207 | 211 | ▲ 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 | 83.3% | 83.3% | 0.0% |
| February | 82.1% | 89.3% | ▲ 8.7% |
| March | 74.2% | 85.7% | ▲ 15.5% |
| April | 86.7% | 96.6% | ▲ 11.4% |
| May | 93.6% | 90.3% | ▼ 3.5% |
| June | 83.3% | 93.3% | ▲ 12.0% |
| July | 96.7% | 93.1% | ▼ 3.7% |
| August | 96.8% | – | – |
| September | 90.0% | – | – |
| October | 100.0% | – | in progress |
| November | 93.3% | – | – |
| December | 82.1% | – | – |
| Year-to-date average (Jan–Jul) | 85.7% | 90.2% | ▲ 5.3% |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 3 | 6 | ▲ 100.0% |
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 98.1% 627
- Cancelled 1.9% 12
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| KOA SEA Ellison Onizuka Kona International Airport at Keāhole – Seattle–Tacoma International Airport | 4,327 | 0.8 min | 90.0% | 623 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 26 | 24 | 83.3% | 2 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 30 | 96.7% | 1 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 30 | 30 | 93.3% | 0 |
| December 2025 | 31 | 28 | 82.1% | 3 |
| January 2026 | 30 | 30 | 83.3% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 28 | 85.7% | 3 |
| April 2026 | 30 | 29 | 96.6% | 1 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 29 | 93.1% | 2 |