PlainFlights

SUN 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
SUN

Sun Valley/Hailey/Ketchum, ID

Sun Valley/Hailey/Ketchum, 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 SUN SFO
On-Time Rate (higher is better) 88.6% 81.0%
Avg Delay (lower is better) 95.5 min 72.5 min
Delay Rate (lower is better) 11.4% 19.0%
Cancellation Rate (lower is better) 1.43% 0.85%
Total Flights 22,928 1,466,784
Delayed Flights 2,622 278,538
Cancelled Flights 328 12,405
Top Delay Cause Carrier Late Aircraft

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

Delay Cause Breakdown

SUN - Sun Valley/Hailey/Ketchum, ID

Carrier 45.0%
Weather 24.1%
Late Aircraft 15.6%
NAS 15.2%
Security 0.1%

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 SUN

Route Flights On-Time
SUN → SLC
Salt Lake City
5,319 91.7%
SLC → SUN
Sun Valley/Hailey/Ketchum
5,318 91.9%
DEN → SUN
Sun Valley/Hailey/Ketchum
2,224 83.1%
SUN → DEN
Denver
2,223 83.1%
SUN → LAX
Los Angeles
927 88.3%
LAX → SUN
Sun Valley/Hailey/Ketchum
926 86.5%

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.