According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Lexington, KY (LEX) ranks #110 of 382 tracked US airports by total flights (most flights = #1). Lexington, KY posts above-median on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport.
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LEX on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Late Aircraft.
Total delay minutes: 621,470.
Late Aircraft39.1% (242,987 min)
Carrier37.3% (231,901 min)
NAS (National Aviation System)16.9% (105,207 min)
Weather6.5% (40,438 min)
Security0.2% (937 min)
LEX - seasonal on-time pattern
Best: November (94.5%) · worst: June (89.6%)
LEX - on-time rate by year
2020–2025, year-over-year trend.
LEX - taxi-out and taxi-in (monthly)
Average taxi-out 17.6 min · taxi-in 5.9 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
LEX's average taxi-out (17.6 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 15.0 min (June 2024) to 21.9 min (January 2025).
Two PlainFlights-derived comparison paths for Lexington, KY, both outside Kentucky 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 Lexington, KY is the delay mix: Late Aircraft owns 39.1% of 621,470 delay minutes across 91,507 BTS flights. The on-time headline is 83.6% (4.6 pts above the 79% national average), with 14,982 delayed and 985 cancelled (1.08%).
Delay minutes concentrate in Late Aircraft (39.1% late-aircraft, 37.3% carrier, 16.9% NAS, 6.5% 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, LEX is strongest in November (94.5% on-time) and weakest in June (89.6%), a 4.9-point swing. Volume peaks in July (~1,408 flights/month). The busiest connecting route is to ATL (Atlanta) at 87.3% on-time. Field definitions: on-time performance explained.
Lexington, KY vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
83.6%Top 47%higher than 53% of 382 airports
Lexington, KY
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.
LEX's on-time book is mid-pack; month and delay-cause mix move more than the headline rate.
Check the busiest route from LEX before you book a connection. See top routes →
Travel in November rather than June if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 17.6 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 Lexington, KY's on-time rate?
Lexington, KY (LEX) has a 83.6% on-time rate across 91,507 BTS-tracked flights (2020-2025), 4.6 pts above the 79% national flight-weighted average; that places it in roughly the above-median on-time performance.
How does LEX rank among U.S. airports by traffic volume?
Lexington, KY ranks #110 of 382 tracked US airports by total BTS flights (most flights = #1), making it a mid-size U.S. airport.
What's the most common cause of delays at Lexington, KY?
Late Aircraft is the leading delay cause at LEX, accounting for 39.1% of delay minutes. The full breakdown: 39.1% late-aircraft, 37.3% carrier, 16.9% NAS/air-traffic-control, 6.5% weather, and 0.2% security.
When is the best time to fly through Lexington, KY?
November is historically LEX's strongest month at 94.5% on-time, while June is the weakest at 89.6%, a 4.9-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