McGhee Tyson in December 2023

87.9%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 December 2023, reporting carriers scheduled 1,147 domestic departures from McGhee Tyson (TYS). 87.9% left less than 15 minutes late and 85.6% reached their destination on time; 0.3% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so TYS departures were 4.8 points above the national departure figure.

Flights arriving at TYS that month were on time 84.0% of the time (1,147 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 35% and national aviation system 19%.

On time 85.6%
Arrived 15+ minutes late 13.8%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from TYS in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	TYS, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	87.9%	—	76.3%	83.1%
Arrived on time	85.6%	—	75.1%	83.8%
Cancelled	0.3%	—	2.1%	0.4%
Average departure delay (late minutes only)	9.6 min	—	22.0 min	11.6 min
Scheduled departures a day	38	—	37	19,013
Scheduled departures	1,147	—	13,561	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	274	24%	85.4%	-4.5 min	0.4%
9E Endeavor Air	200	17%	91.5%	-10.6 min	0.5%
G4 Allegiant Air	200	17%	76.5%	3.5 min	0.0%
OO SkyWest Airlines	150	13%	83.3%	0.1 min	0.0%
DL Delta Air Lines	99	9%	93.9%	-9.1 min	0.0%
AA American Airlines	85	7%	87.1%	-6.7 min	2.4%
MQ Envoy Air	59	5%	81.4%	6.2 min	0.0%
YX Republic Airline	57	5%	91.2%	-8.5 min	0.0%
F9 Frontier Airlines	23	2%	87.0%	-1.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TYS–ATL	Knoxville to Atlanta	202	92.6%	-9.0 min	0.0%
TYS–CLT	Knoxville to Charlotte	170	80.6%	1.3 min	0.0%
TYS–ORD	Knoxville to Chicago	110	80.0%	6.1 min	0.0%
TYS–DCA	Knoxville to Washington	98	88.8%	-8.6 min	1.0%
TYS–DFW	Knoxville to Dallas/Fort Worth	91	86.8%	-7.4 min	2.2%
TYS–LGA	Knoxville to New York	87	92.0%	-12.9 min	1.1%
TYS–DEN	Knoxville to Denver	77	92.2%	-12.3 min	0.0%
TYS–SFB	Knoxville to Sanford	61	82.0%	-0.2 min	0.0%
TYS–PHL	Knoxville to Philadelphia	42	95.2%	-12.6 min	0.0%
TYS–DTW	Knoxville to Detroit	31	90.3%	-7.0 min	0.0%
TYS–MIA	Knoxville to Miami	31	80.6%	10.7 min	0.0%
TYS–PIE	Knoxville to St. Petersburg	31	80.6%	2.4 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	35.1%	37.1%	3,643
Late-arriving aircraft	43.0%	38.8%	4,456
National Aviation System	18.6%	17.6%	1,931
Extreme weather	3.2%	6.2%	334
Security	0.0%	0.3%	1

10,365 delay minutes on 158 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left TYS on time in December 2023?

87.9% of 1,147 scheduled domestic departures left less than 15 minutes late, and 85.6% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; 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.