PlainFlights

PHX 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
PHX

Phoenix, AZ

Phoenix, Arizona

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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 PHX SFO
On-Time Rate (higher is better) 81.7% 81.0%
Avg Delay (lower is better) 71.3 min 72.5 min
Delay Rate (lower is better) 18.3% 19.0%
Cancellation Rate (lower is better) 0.77% 0.85%
Total Flights 2,030,209 1,466,784
Delayed Flights 372,174 278,538
Cancelled Flights 15,535 12,405
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

PHX - Phoenix, AZ

Late Aircraft 44.7%
Carrier 39.1%
NAS 13.7%
Weather 2.3%
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 PHX

Route Flights On-Time
PHX → DEN
Denver
49,558 80.7%
DEN → PHX
Phoenix
49,508 77.8%
LAX → PHX
Phoenix
40,246 83.7%
PHX → LAX
Los Angeles
40,241 85%
PHX → SEA
Seattle
38,561 84.3%
SEA → PHX
Phoenix
38,549 82.3%

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.