Airports › Kona (KOA) › April 2025
Airport month · April 2025
Ellison Onizuka Kona International at Keahole in April 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In April 2025, reporting carriers scheduled 1,274 domestic departures from Ellison Onizuka Kona International at Keahole (KOA). 89.0% left less than 15 minutes late and 86.3% reached their destination on time; 0.7% were cancelled.
Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so KOA departures were 8.4 points above the national departure figure.
A year earlier, in April 2024, the airport had 1,291 departures with 88.0% leaving on time: a change of +1.0 points, with flights down 1%.
Flights arriving at KOA that month were on time 88.6% of the time (1,273 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 61%, late-arriving aircraft 28% and national aviation system 9%.
- On time 86.3%
- Arrived 15+ minutes late 12.9%
- Cancelled 0.7%
- Diverted 0.2%
April 2025 against a year earlier, the airport's year and the nation
| Measure | Apr 2025 | Apr 2024 | KOA, 12 months to Jul 2026 | All reported flights, Apr 2025 |
|---|---|---|---|---|
| Departed on time | 89.0% | 88.0% | 85.7% | 80.6% |
| Arrived on time | 86.3% | 88.5% | 84.7% | 79.5% |
| Cancelled | 0.7% | 1.0% | 1.1% | 0.8% |
| Average departure delay (late minutes only) | 9.2 min | 9.0 min | 8.7 min | 14.1 min |
| Scheduled departures a day | 43 | 43 | 44 | 19,465 |
| Scheduled departures | 1,274 | 1,291 | 16,052 | 583,950 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| HA Hawaiian Airlines | 626 | 49% | 84.0% | 6.0 min | 1.3% |
| WN Southwest Airlines | 244 | 19% | 96.7% | -8.1 min | 0.0% |
| AS Alaska Airlines | 153 | 12% | 80.4% | 3.9 min | 0.0% |
| UA United Airlines | 131 | 10% | 84.0% | 10.8 min | 0.8% |
| AA American Airlines | 60 | 5% | 85.0% | 38.8 min | 0.0% |
| DL Delta Air Lines | 60 | 5% | 88.3% | -3.2 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| KOA–HNL | Kona to Honolulu | 616 | 84.9% | 3.1 min | 1.3% |
| KOA–LAX | Kona to Los Angeles | 125 | 88.0% | 1.2 min | 0.0% |
| KOA–OGG | Kona to Kahului | 120 | 94.2% | 0.5 min | 0.0% |
| KOA–SEA | Kona to Seattle | 120 | 80.8% | 3.6 min | 0.0% |
| KOA–SFO | Kona to San Francisco | 64 | 76.6% | 28.1 min | 1.6% |
| KOA–SMF | Kona to Sacramento | 43 | 93.0% | -5.9 min | 0.0% |
| KOA–DEN | Kona to Denver | 30 | 86.7% | -1.4 min | 0.0% |
| KOA–LAS | Kona to Las Vegas | 30 | 96.7% | -9.9 min | 0.0% |
| KOA–LIH | Kona to Lihue | 30 | 100.0% | -0.1 min | 0.0% |
| KOA–PHX | Kona to Phoenix | 30 | 93.3% | 70.1 min | 0.0% |
| KOA–SAN | Kona to San Diego | 30 | 76.7% | 9.3 min | 0.0% |
| KOA–PDX | Kona to Portland | 26 | 88.5% | -7.9 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left KOA on time in April 2025?
89.0% of 1,274 scheduled domestic departures left less than 15 minutes late, and 86.3% reached their destination on time. The national figures that month were 80.6% and 79.5%.
How does that compare with a year earlier?
In April 2024, 88.0% of 1,291 departures left on time and 1.0% were cancelled, against 89.0% and 0.7% in April 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for KOA · methodology · corrections.