PlainFlights

KOA vs SJC - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
KOA

Kona, HI

Kona, Hawaii

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Airport B
SJC

San Jose, CA

San Jose, California

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric KOA SJC
On-Time Rate (higher is better) 86.3% 84.2%
Avg Delay (lower is better) 61.7 min 59.8 min
Delay Rate (lower is better) 13.7% 15.8%
Cancellation Rate (lower is better) 0.70% 0.99%
Total Flights 177,017 546,547
Delayed Flights 24,282 86,586
Cancelled Flights 1,232 5,418
Top Delay Cause Late Aircraft Late Aircraft

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

KOA - Kona, HI

Late Aircraft 48.3%
Carrier 38.7%
NAS 10.8%
Weather 2.1%
Security 0.3%

SJC - San Jose, CA

Late Aircraft 46.2%
Carrier 34.8%
NAS 16.4%
Weather 2.4%
Security 0.2%

Top Routes

Top routes from KOA

Route Flights On-Time
KOA → HNL
Honolulu
41,340 86.9%
HNL → KOA
Kona
41,330 87.8%
LAX → KOA
Kona
9,270 85.5%
KOA → LAX
Los Angeles
9,269 86%
OGG → KOA
Kona
8,345 80.5%
KOA → OGG
Kahului
8,327 85.2%

Top routes from SJC

Route Flights On-Time
SJC → SAN
San Diego
31,755 82.2%
SAN → SJC
San Jose
31,496 82%
LAX → SJC
San Jose
30,318 87.3%
SJC → LAX
Los Angeles
30,152 88.4%
SEA → SJC
San Jose
26,361 85%
SJC → SEA
Seattle
26,343 86.4%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.