DL340
DL340 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Seattle to Kailua-Kona. Of 693 departures recorded from October 2024 to July 2026, 81.9% left on time, according to the US BTS.
- On-time departures81.9%of 693 flights
- Average delay9.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.7%
- Legs flown under this number2
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 | 36 | 36 | 0.0% |
| 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 | 43 | – | – |
| Year to date (Jan–Jul) | 217 | 217 | 0.0% |
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 | 71.4% | 80.6% | ▲ 12.8% |
| February | 75.0% | 78.6% | ▲ 4.8% |
| March | 87.1% | 64.3% | ▼ 26.2% |
| April | 83.3% | 93.3% | ▲ 12.0% |
| May | 96.8% | 83.9% | ▼ 13.3% |
| June | 83.3% | 90.0% | ▲ 8.0% |
| July | 77.4% | 83.3% | ▲ 7.6% |
| August | 87.1% | – | – |
| September | 90.0% | – | – |
| October | 90.3% | – | in progress |
| November | 90.0% | – | – |
| December | 79.0% | – | – |
| Year-to-date average (Jan–Jul) | 82.1% | 82.0% | ▼ 0.1% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 5 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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 98.3% 681
- Cancelled 1.7% 12
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA KOA Seattle–Tacoma International Airport – Ellison Onizuka Kona International Airport at Keāhole | 4,327 | 8.5 min | 83.9% | 658 |
| KOA SEA Ellison Onizuka Kona International Airport at Keāhole – Seattle–Tacoma International Airport | 4,327 | 30.4 min | 41.9% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 44 | 42 | 57.1% | 2 |
| January 2025 | 36 | 35 | 71.4% | 1 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 43 | 38 | 79.0% | 5 |
| January 2026 | 36 | 36 | 80.6% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 28 | 64.3% | 3 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 31 | 30 | 83.3% | 1 |