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BOI 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
BOI

Boise, ID

Boise, Idaho

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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 BOI SJC
On-Time Rate (higher is better) 85.2% 84.2%
Avg Delay (lower is better) 69.4 min 59.8 min
Delay Rate (lower is better) 14.8% 15.8%
Cancellation Rate (lower is better) 0.55% 0.99%
Total Flights 266,753 546,547
Delayed Flights 39,406 86,586
Cancelled Flights 1,457 5,418
Top Delay Cause Carrier Late Aircraft

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

Delay Cause Breakdown

BOI - Boise, ID

Carrier 41.3%
Late Aircraft 33.3%
NAS 19.1%
Weather 6.1%
Security 0.2%

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 BOI

Route Flights On-Time
SEA → BOI
Boise
25,171 86%
BOI → SEA
Seattle
24,617 86.9%
BOI → DEN
Denver
14,565 84%
DEN → BOI
Boise
14,552 77.6%
BOI → SLC
Salt Lake City
10,117 90.1%
SLC → BOI
Boise
10,115 88%

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.