PlainFlights

BWI 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
BWI

Baltimore, MD

Baltimore, Maryland

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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 BWI SFO
On-Time Rate (higher is better) 78.0% 81.0%
Avg Delay (lower is better) 61.0 min 72.5 min
Delay Rate (lower is better) 22.0% 19.0%
Cancellation Rate (lower is better) 1.25% 0.85%
Total Flights 1,049,006 1,466,784
Delayed Flights 230,270 278,538
Cancelled Flights 13,150 12,405
Top Delay Cause Carrier Late Aircraft

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

Delay Cause Breakdown

BWI - Baltimore, MD

Carrier 38.9%
Late Aircraft 38.2%
NAS 18.9%
Weather 3.7%
Security 0.3%

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 BWI

Route Flights On-Time
ATL → BWI
Baltimore
31,846 80.2%
BWI → ATL
Atlanta
31,798 82.1%
MCO → BWI
Baltimore
29,125 77%
BWI → MCO
Orlando
29,050 76.2%
BWI → FLL
Fort Lauderdale
21,397 77.2%
FLL → BWI
Baltimore
21,264 79%

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.