ON TIMEBOARD

KOA → PHX on time

Ellison Onizuka Kona at Keāhole (Kona, HI) to Phoenix Sky Harbor (Phoenix, AZ). Every scheduled flight, September 2025 to August 2026.

On time
92%
arrived < 15 min late
Cancelled
1.3%
384 flights
Typical arrival
−14 min
median vs schedule
When late
+227 min
average delay
Flights / day
1
1 airline

92% of flights from Kona to Phoenix arrived on time over the past 12 months. That is better than the typical U.S. route. 3% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for KOA → PHX: when a flight was late, it was under 45 minutes late 68% of the time. About 1 in 55 flights landed an hour or more late, and 1 in 77 three hours or more; 1.3% were cancelled outright.

Share of all 384 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines38492%1.3%−14 min1.8%+227 minAmerican Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at KOA). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 p.m. departures: 94% on time (311 flights)949p10 p.m. departures: too few flights (72 flights)10p
KOA → PHX, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: January (92%). Worst: December (92%).

40%70%100%Jan: 92% on time (111 flights)92JanFeb: too few flights (85 flights)FebMar: too few flights (93 flights)MarApr: too few flights (90 flights)AprMay: too few flights (93 flights)MayJun: too few flights (90 flights)JunJul: too few flights (93 flights)JulAug: too few flights (92 flights)AugSep: too few flights (90 flights)SepOct: too few flights (93 flights)OctNov: too few flights (90 flights)NovDec: 92% on time (132 flights)92Dec

By day of week

DayFlightsOn timeCancelled
Monday56——
Tuesday54——
Wednesday54——
Thursday55——
Friday55——
Saturday55——
Sunday55——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 65%Severe weather 19%Late inbound plane 8%Air traffic & airport (NAS) 8%

Cancellations: airline 4 · weather 1

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AA 6649:45 p.m.36592%1.4%−14 minAmerican Airlines

Questions

How often are flights from KOA to PHX on time?

92% of 384 scheduled flights from Kona, HI to Phoenix, AZ arrived within 15 minutes of schedule between September 2025 and August 2026. 1.3% were cancelled.

What month has the most delays from KOA to PHX?

December (92% on time). The best month is January (92%), over 2023–2026.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.