Route · KOA → SEA · 2020–2025 BTS data
Kona to Seattle
The KOA–SEA corridor (Kona, HI → Seattle, WA) runs ahead of the national average, served by 3 carriers across roughly 2,688 miles.
Data updated 2026-06-13
- 83.6%
- On-time
- +4.6 pts
- vs US avg
- 69 min
- Delay when late
- 7,238
- Flights
Cancelled
2.4%
Best Month
Nov 2024 93%
Worst Month
May 2024 79%
Distance
2,688 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 123 | 21 | 6 | 0 | DL,AS |
| Nov 2025 | 118 | 13 | 7 | 0 | AS,DL |
| Oct 2025 | 122 | 18 | 4 | 0 | AS,DL |
| Sep 2025 | 111 | 15 | 1 | 0 | DL,AS |
| Aug 2025 | 121 | 10 | 3 | 0 | AS,DL |
| Jul 2025 | 123 | 12 | 3 | 0 | AS,DL |
| Jun 2025 | 120 | 20 | 2 | 1 | AS,DL |
| May 2025 | 124 | 22 | 0 | 0 | AS,DL |
| Apr 2025 | 120 | 23 | 0 | 0 | AS,DL |
| Mar 2025 | 124 | 14 | 2 | 0 | AS,DL |
| Feb 2025 | 111 | 15 | 1 | 0 | AS,DL |
| Jan 2025 | 123 | 21 | 4 | 0 | AS,DL |
| Dec 2024 | 108 | 13 | 2 | 0 | AS,DL |
| Nov 2024 | 98 | 7 | 0 | 1 | AS,DL |
| Oct 2024 | 123 | 22 | 1 | 0 | AS,DL |
| Sep 2024 | 120 | 12 | 0 | 0 | AS,DL |
| Aug 2024 | 124 | 15 | 1 | 0 | AS,DL |
| Jul 2024 | 124 | 14 | 1 | 0 | AS,DL |
| Jun 2024 | 120 | 11 | 1 | 0 | AS,DL |
| May 2024 | 112 | 23 | 0 | 1 | AS,DL |
| Apr 2024 | 106 | 10 | 2 | 0 | AS,DL |
| Mar 2024 | 121 | 24 | 2 | 0 | AS,DL |
| Feb 2024 | 104 | 20 | 3 | 1 | AS,DL |
| Jan 2024 | 109 | 16 | 21 | 0 | AS,DL |
Cancellation Rate
2.4%
67 of 2,809 flights
Diversion Rate
0.1%
4 of 2,809 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
KOA - Kona
Full on-time, delay-cause, and seasonal performance for Kona, HI.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See KOA and SEA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to KOA–SEA.
Routes with a similar on-time rate
What the Data Says About KOA to SEA
Bureau of Transportation Statistics records show Kona to Seattle (KOA to SEA) running a 83.6% on-time rate over 7,238 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 68.5 minutes. The 2,688-mile corridor is served by 3 carriers, and over the last 24 months 2.4% of 2,809 flights were cancelled, 0.1% diverted.
Monthly performance varies moderately here: Nov 2024 was the strongest month at 93% on-time versus May 2024 at 79%, a 13-point difference.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.