PlainFlights

BOI vs SFO - 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
SFO

San Francisco, CA

San Francisco, California

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Key Performance Metrics

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

Metric BOI SFO
On-Time Rate (higher is better) 85.2% 81.0%
Avg Delay (lower is better) 69.4 min 72.5 min
Delay Rate (lower is better) 14.8% 19.0%
Cancellation Rate (lower is better) 0.55% 0.85%
Total Flights 266,753 1,466,784
Delayed Flights 39,406 278,538
Cancelled Flights 1,457 12,405
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%

SFO - San Francisco, CA

Late Aircraft 42.0%
Carrier 36.9%
NAS 17.9%
Weather 3.2%
Security 0.1%

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 SFO

Route Flights On-Time
LAX → SFO
San Francisco
63,553 78.7%
SFO → LAX
Los Angeles
63,540 82.9%
SFO → SEA
Seattle
37,671 82.1%
SEA → SFO
San Francisco
37,651 79.1%
JFK → SFO
San Francisco
35,481 81.9%
SFO → JFK
New York
35,481 83.2%

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.