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Route · SJC → KOA · 2020–2025 BTS data

San Jose to Kona

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJC to KOA (San Jose to Kona) ranks #3750 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

87%
On-time
+8 pts
vs US avg
60 min
Delay when late
2,125
Flights
#3750 of 4927
Corpus placement

Cancelled

0.2%

Best Month

May 2023 95%

Worst Month

Dec 2022 71%

Distance

2,384 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2024 31 2 0 0 AS
Oct 2024 30 2 0 0 AS
Aug 2024 31 7 0 0 AS
Jul 2024 31 7 0 0 AS
Dec 2023 42 5 0 0 WN,AS
Nov 2023 40 3 0 0 AS,WN
Oct 2023 62 4 0 0 AS,WN
Sep 2023 59 5 0 0 AS,WN
Aug 2023 62 9 0 0 AS,WN
Jul 2023 62 5 0 0 AS,WN
Jun 2023 60 4 0 0 AS,WN
May 2023 62 3 0 0 AS,WN
Apr 2023 60 3 0 0 WN,AS
Mar 2023 56 12 0 0 WN,AS
Feb 2023 44 2 0 1 AS,WN
Jan 2023 52 11 1 0 AS,WN
Dec 2022 56 16 1 0 AS,WN
Nov 2022 52 12 0 0 WN,AS
Oct 2022 49 4 0 0 WN,AS
Sep 2022 50 2 0 0 WN,AS
Aug 2022 62 11 0 0 AS,WN
Jul 2022 62 11 0 0 WN,AS
Jun 2022 58 14 0 1 WN,AS
May 2022 48 8 0 0 WN,AS

SJC–KOA seasonal on-time pattern

Best: February (94.3%) · weakest: December (76.2%)

75%80%85%90%95%100% JanFebMarAprMayJunJulAugSepOctNovDec 76.2%

Strongest calendar month

February

94.3% on-time · ~44 flights/mo

Busiest calendar month

June

~59 flights/mo avg

Weakest calendar month

December

76.2% on-time · ~47 flights/mo

Cancellation Rate

0.2%

2 of 1,221 flights

Diversion Rate

0.2%

2 of 1,221 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SJC - San Jose

Full on-time, delay-cause, and seasonal performance for San Jose, CA.

SJC on-time profile

KOA - Kona

Full on-time, delay-cause, and seasonal performance for Kona, HI.

KOA on-time profile

Compare the two airports

See SJC and KOA side by side on delays, cancellations, and reliability.

Compare SJC vs KOA

Origin-hub reliability standing

Among SJC's stronger departures

SJC → KOA posts a 87% on-time rate, landing in the ≥85% band with 21 of 31 BTS-tracked routes leaving San Jose. The same hub also shows 9 mid-band and 1 challenged departures · fleet-wide on-time rank #640 of 4927 (highest on-time = #1).

What the Data Says About SJC to KOA

San Jose to Kona (SJC to KOA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87% on-time rate across 2,125 flights, with delays that do happen averaging 59.6 minutes. The corridor runs roughly 2,384 miles and is served by 3 carriers. Over the most recent 24 months, 2 of 1,221 flights were cancelled (0.2%) and 2 diverted (0.2%).

The monthly split is wide on this route: May 2023 posted the strongest performance at 95% on-time, while Dec 2022 came in at just 71% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, SJC–KOA peaks in February at 94.3% on-time while June carries the heaviest traffic (~59 flights per month) ; the softest month is December at 76.2%, a 18.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SJC to KOA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SJC to KOA ranks #3750 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SJC to KOA? ▼
Flights from San Jose to Kona have a 87% on-time rate based on 2,125 flights. The average delay is 59.6 minutes. The best recent month was May 2023 with 95% on-time.
What is the cancellation rate for SJC to KOA? ▼
Over the last 24 months, 0.2% of flights on this route were cancelled (2 of 1,221 flights) and 0.2% were diverted.
How far is the flight from SJC to KOA? ▼
The flight distance from San Jose (SJC) to Kona (KOA) is approximately 2,384 miles. This route is served by 3 carriers.
When is the best time to fly from SJC to KOA? ▼
The best recent month for on-time performance was May 2023 (95% on-time). The worst was Dec 2022 (71% on-time). Consider booking during months with historically better performance.

Airports on this route

SJC Airport

San Jose
KOA Airport

Kona
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.

Using SJC–KOA data

SJC–KOA runs 8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SJC and KOA airport profiles: delay causes and top routes differ even on the same corridor. SJC airport
  • If your dates flex, February (94.3% on-time) beats December (76.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 87% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

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.