According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Sanford, FL (SFB) ranks #102 of 382 tracked US airports by total flights (most flights = #1). Sanford, FL posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport.
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SFB on-time rate vs. the national average
Behind the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes: 974,855.
Late Aircraft35.5% (345,616 min)
Carrier35.6% (346,655 min)
NAS (National Aviation System)15.6% (152,457 min)
Weather13.1% (127,780 min)
Security0.2% (2,347 min)
SFB - seasonal on-time pattern
Best: September (90.3%) · worst: July (84.8%)
SFB - on-time rate by year
2020–2025, year-over-year trend.
SFB - taxi-out and taxi-in (monthly)
Average taxi-out 15.8 min · taxi-in 7.3 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
SFB's average taxi-out (15.8 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 14.4 min (October 2024) to 18.8 min (August 2025).
Two PlainFlights-derived comparison paths for Sanford, FL, both outside Florida so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.
The standout signal at Sanford, FL is on-time standing: 74.1% (4.9 pts below the 79% national flight-weighted average; roughly the bottom-quartile on-time performance) across 113,898 BTS flights (2020–2025). When a departure runs late, the average delay is 82.6 minutes; cancellations run 1.99%.
Delay minutes concentrate in Carrier (35.5% late-aircraft, 35.6% carrier, 15.6% NAS, 13.1% weather, 0.2% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.
On the multi-year calendar, SFB is strongest in September (90.3% on-time) and weakest in July (84.8%), a 5.5-point swing. Volume peaks in March (~2,033 flights/month). The busiest connecting route is to ABE (Allentown/Bethlehem/Easton) at 76.3% on-time. Field definitions: on-time performance explained.
Sanford, FL vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
74.1%Top 98%higher than 2% of 382 airports
Sanford, FL
60%95%
U.S. airports by on-time rate, bucketed by value
Each bar is a band; taller bars hold more airports. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
SFB's on-time book sits in the slower half of the BTS set; check the delay mix and the worst month before treating the headline as typical.
Check the busiest route from SFB before you book a connection. See top routes →
Travel in September rather than July if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 15.8 min here; check the monthly series before a tight connection. Taxi times →
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Frequently Asked Questions
What is Sanford, FL's on-time rate?
Sanford, FL (SFB) has a 74.1% on-time rate across 113,898 BTS-tracked flights (2020-2025), 4.9 pts below the 79% national flight-weighted average; that places it in roughly the bottom-quartile on-time performance.
How does SFB rank among U.S. airports by traffic volume?
Sanford, FL ranks #102 of 382 tracked US airports by total BTS flights (most flights = #1), making it a high-volume U.S. airport.
What's the most common cause of delays at Sanford, FL?
Carrier is the leading delay cause at SFB, accounting for 35.6% of delay minutes. The full breakdown: 35.5% late-aircraft, 35.6% carrier, 15.6% NAS/air-traffic-control, 13.1% weather, and 0.2% security.
When is the best time to fly through Sanford, FL?
September is historically SFB's strongest month at 90.3% on-time, while July is the weakest at 84.8%, a 5.5-point swing across the BTS historical record.
Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights