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SAN vs STS - 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
SAN

San Diego, CA

San Diego, California

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Airport B
STS

Santa Rosa, CA

Santa Rosa, California

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Key Performance Metrics

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

Metric SAN STS
On-Time Rate (higher is better) 80.8% 83.3%
Avg Delay (lower is better) 64.8 min 70.1 min
Delay Rate (lower is better) 19.2% 16.7%
Cancellation Rate (lower is better) 0.97% 0.80%
Total Flights 973,807 43,075
Delayed Flights 186,727 7,178
Cancelled Flights 9,421 344
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

SAN - San Diego, CA

Late Aircraft 46.4%
Carrier 28.6%
NAS 20.9%
Weather 3.9%
Security 0.2%

STS - Santa Rosa, CA

Late Aircraft 51.4%
Carrier 26.3%
NAS 13.3%
Weather 8.8%
Security 0.2%

Top Routes

Top routes from SAN

Route Flights On-Time
SAN → SFO
San Francisco
34,589 77.3%
SFO → SAN
San Diego
34,477 80.3%
LAS → SAN
San Diego
33,593 72.8%
SAN → LAS
Las Vegas
33,400 77.7%
SJC → SAN
San Diego
31,755 82.2%
SAN → SJC
San Jose
31,496 82%

Top routes from STS

Route Flights On-Time
STS → LAX
Los Angeles
3,457 83.8%
LAX → STS
Santa Rosa
3,375 84%
SAN → STS
Santa Rosa
3,245 80.9%
STS → SAN
San Diego
3,163 77.9%
SEA → STS
Santa Rosa
2,915 81.3%
STS → SEA
Seattle
2,915 80.1%

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.