On-Time Report

Airports › Knoxville (TYS) › June 2025

Airport month · June 2025

McGhee Tyson in June 2025

70.4%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In June 2025, reporting carriers scheduled 1,227 domestic departures from McGhee Tyson (TYS). 70.4% left less than 15 minutes late and 67.6% reached their destination on time; 2.3% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so TYS departures were 1.0 points below the national departure figure.

A year earlier, in June 2024, the airport had 1,467 departures with 81.0% leaving on time: a change of −10.6 points, with flights down 16%.

Flights arriving at TYS that month were on time 60.0% of the time (1,227 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 23% and national aviation system 20%.

Every scheduled departure from TYS in June 2025, judged by arrival at the destination.

June 2025 against a year earlier, the airport's year and the nation

MeasureJun 2025Jun 2024TYS, 12 months to Jul 2026All reported flights, Jun 2025
Departed on time70.4%81.0%76.3%71.4%
Arrived on time67.6%81.0%75.1%70.3%
Cancelled2.3%1.3%2.1%1.6%
Average departure delay (late minutes only)28.4 min16.8 min22.0 min22.1 min
Scheduled departures a day41493720,386
Scheduled departures1,2271,46713,561611,575

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
G4 Allegiant Air35529%70.4%20.9 min0.0%
OH PSA Airlines23819%66.4%22.3 min5.0%
DL Delta Air Lines15413%68.2%17.0 min4.5%
AA American Airlines15212%59.9%37.3 min1.3%
YX Republic Airline13611%66.2%18.7 min5.1%
OO SkyWest Airlines1149%72.8%12.0 min0.0%
UA United Airlines605%68.3%17.9 min0.0%
F9 Frontier Airlines91%33.3%42.3 min0.0%
MQ Envoy Air91%88.9%1.3 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
TYS–ORDKnoxville to Chicago22267.1%21.9 min1.4%
TYS–ATLKnoxville to Atlanta15468.2%17.0 min4.5%
TYS–DFWKnoxville to Dallas/Fort Worth15368.0%23.1 min0.0%
TYS–DCAKnoxville to Washington8864.8%13.5 min9.1%
TYS–DENKnoxville to Denver7856.4%25.5 min0.0%
TYS–LGAKnoxville to New York7660.5%24.3 min9.2%
TYS–PIEKnoxville to St. Petersburg5278.8%9.4 min0.0%
TYS–SFBKnoxville to Sanford5242.3%62.0 min0.0%
TYS–CLTKnoxville to Charlotte4667.4%40.4 min2.2%
TYS–FLLKnoxville to Fort Lauderdale4358.1%32.7 min0.0%
TYS–MIAKnoxville to Miami3461.8%31.2 min2.9%
TYS–PHLKnoxville to Philadelphia3080.0%11.3 min3.3%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), June 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Jun 2025Minutes
Air carrier22.8%31.6%8,043
Late-arriving aircraft46.1%40.6%16,242
National Aviation System19.6%20.9%6,907
Extreme weather11.5%6.9%4,051
Security0.0%0.2%7
35,250 delay minutes on 358 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← May 2025July 2025 →

Questions and answers

How many flights left TYS on time in June 2025?

70.4% of 1,227 scheduled domestic departures left less than 15 minutes late, and 67.6% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 81.0% of 1,467 departures left on time and 1.3% were cancelled, against 70.4% and 2.3% in June 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for TYS · methodology · corrections.