Flight profile · Delta Air Lines
DL311
Los Angeles (LAX) to Kailua-Kona (KOA) · scheduled 3:59 PM – 6:30 PM
How DL311 performs
1,003 operations, 2023-07-01 to 2026-06-30.
DL311 arrived on time 81.6% of the time, against 83.7% for all LAX → KOA flights — this specific departure is 2.1 percentage points worse than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 1,003 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL311 | 81.6% | 0.80% | -8 min | 6.8% | 1,003 |
| Delta Air Lines on LAX → KOA | 82.5% | 0.73% | -9 min | 6.7% | 1,096 |
| All LAX → KOA flights | 83.7% | 0.53% | -8 min | 4.7% | 4,887 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL311 run worse on particular days?
Thursday is historically the most reliable day and Friday the least, a gap of 8.9 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes DL311 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| KOA→LAX Kailua-Kona to Los Angeles | 2023-07-01 – 2024-03-09 | 111 | 94.5% |
| ATL→FLL Atlanta to Fort Lauderdale | 2023-12-04 – 2023-12-06 | 3 | — |
| FLL→ATL Fort Lauderdale to Atlanta | 2023-12-04 – 2023-12-06 | 3 | — |
| SEA→SNA Seattle to Santa Ana | 2023-09-05 – 2023-12-03 | 63 | — |
| SNA→SEA Santa Ana to Seattle | 2023-09-05 – 2023-12-03 | 62 | — |
| LAX→MSP Los Angeles to Minneapolis | 2023-11-04 – 2023-11-04 | 1 | — |
| SEA→CVG Seattle to Cincinnati / Covington | 2023-10-09 – 2023-11-03 | 26 | — |
Because the same number has served different journeys, the statistics above describe only the route DL311 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,003 records of DL311 operating LAX → KOA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.