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Airport · TYS · Knoxville, Tennessee

Knoxville, TN

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Knoxville, TN (TYS) ranks #85 of 382 tracked US airports by total flights (most flights = #1). Knoxville, TN posts below-median on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport.

Data updated 2026-06-13

81.9%
On-time
Top 68%
on-time, US airports
83 min
Delay when late
1.14%
Cancelled
#85 of 382
Corpus placement
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TYS on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%81.9%

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 1,076,913.

Late Aircraft 39.2% (422,350 min)
Carrier 35.9% (386,946 min)
NAS (National Aviation System) 17.3% (186,201 min)
Weather 7.5% (80,448 min)
Security 0.1% (968 min)

TYS - seasonal on-time pattern

Best: April (93.9%) · worst: July (90.1%)

89%90%91%92%93%94%95% JanFebMarAprMayJunJulAugSepOctNovDec 91.4%

TYS - on-time rate by year

2020–2025, year-over-year trend.

85%90%95%100% 202020212022202320242025 95.7% 88.9% ▼ -7.1%

TYS - taxi-out and taxi-in (monthly)

Average taxi-out 17 min · taxi-in 7 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

14 min16 min18 min20 min22 min24 min Jan 24Dec 25 21.6 min 17.1 min ▼ -20.8%

TYS's average taxi-out (17 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 15.4 min (July 2024) to 21.6 min (January 2024).

Cancellation & Diversion Analysis

Flight disruption statistics for Knoxville, TN.

Cancellation Rate

1.14%

1,788 of 157,494 flights

Diversion Rate

0.15%

229 of 157,494 flights

Delay Rate

18.1%

28,457 of 157,494 flights

Top Routes from TYS

Busiest routes to and from Knoxville, TN.

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Route Flights On-Time Distance
ATL (Atlanta) → TYS (Knoxville) 14,336 86.7% 152 mi
TYS (Knoxville) → ATL (Atlanta) 14,331 91.2% 152 mi
CLT (Charlotte) → TYS (Knoxville) 11,170 79.5% 177 mi
TYS (Knoxville) → CLT (Charlotte) 10,914 82.5% 177 mi
DFW (Dallas/Fort Worth) → TYS (Knoxville) 8,303 75.1% 772 mi
TYS (Knoxville) → DFW (Dallas/Fort Worth) 8,299 79.2% 772 mi
ORD (Chicago) → TYS (Knoxville) 7,733 77.6% 475 mi
TYS (Knoxville) → ORD (Chicago) 7,697 79.8% 475 mi
DCA (Washington) → TYS (Knoxville) 4,951 76.7% 437 mi
TYS (Knoxville) → DCA (Washington) 4,949 81.6% 437 mi
DEN (Denver) → TYS (Knoxville) 4,614 76.4% 1,162 mi
TYS (Knoxville) → DEN (Denver) 4,614 83.3% 1,162 mi
LGA (New York) → TYS (Knoxville) 4,441 83.6% 647 mi
TYS (Knoxville) → LGA (New York) 4,440 86.2% 647 mi
TYS (Knoxville) → DTW (Detroit) 3,206 93.3% 443 mi
DTW (Detroit) → TYS (Knoxville) 3,205 88.9% 443 mi
SFB (Sanford) → TYS (Knoxville) 2,745 68.9% 511 mi
TYS (Knoxville) → SFB (Sanford) 2,743 75.3% 511 mi
TYS (Knoxville) → PHL (Philadelphia) 1,879 85.8% 554 mi
PHL (Philadelphia) → TYS (Knoxville) 1,730 75.4% 554 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Knoxville, TN, both outside Tennessee so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 81.9%).

Grand Rapids, MI

Grand Rapids, MI

81.9% on-time 195,613 flights

Charlotte, NC

Charlotte, NC

82% on-time 2,345,248 flights

Kansas City, MO

Kansas City, MO

82% on-time 524,365 flights

Cleveland, OH

Cleveland, OH

82% on-time 446,498 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 157,494).

Greer, SC

Greer, SC

155,526 flights 83.5% on-time

Palm Springs, CA

Palm Springs, CA

159,999 flights 83.7% on-time

Providence, RI

Providence, RI

160,073 flights 81.2% on-time

Lihue, HI

Lihue, HI

162,570 flights 86.7% on-time

Other Airports in Tennessee

Compare performance with other Tennessee airports.

BNA 80.8%

Nashville, TN

Nashville · 1,046,597 flights
MEM 81.3%

Memphis, TN

Memphis · 251,985 flights
CHA 83.6%

Chattanooga, TN

Chattanooga · 66,136 flights
TRI 85.9%

Bristol/Johnson City/Kingsport, TN

Bristol/Johnson City/Kingsport · 27,896 flights

TYS delay-share reading

The standout signal at Knoxville, TN is the delay mix: Late Aircraft owns 39.2% of 1,076,913 delay minutes across 157,494 BTS flights. The on-time headline is 81.9% (2.9 pts above the 79% national average), with 28,457 delayed and 1,788 cancelled (1.14%).

Delay minutes concentrate in Late Aircraft (39.2% late-aircraft, 35.9% carrier, 17.3% NAS, 7.5% weather, 0.1% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.

On the multi-year calendar, TYS is strongest in April (93.9% on-time) and weakest in July (90.1%), a 3.8-point swing. Volume peaks in October (~2,422 flights/month). The busiest connecting route is to ATL (Atlanta) at 86.7% on-time. Field definitions: on-time performance explained.

Statewide aggregates for Tennessee: Tennessee flight data.

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.

Read our methodology - how this data is sourced, computed, and verified.

Using TYS's data

TYS'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 TYS before you book a connection. See top routes
  • Travel in April rather than July if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 17 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.

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

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.