McGhee Tyson in August 2023

81.8%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 August 2023, reporting carriers scheduled 1,322 domestic departures from McGhee Tyson (TYS). 81.8% left less than 15 minutes late and 80.5% reached their destination on time; 1.4% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so TYS departures were 5.1 points above the national departure figure.

Flights arriving at TYS that month were on time 75.2% of the time (1,322 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 32% and national aviation system 16%.

On time 80.5%
Arrived 15+ minutes late 17.9%
Cancelled 1.4%
Diverted 0.2%

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

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

Measure	Aug 2023	Year earlier	TYS, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	81.8%	—	76.3%	76.7%
Arrived on time	80.5%	—	75.1%	76.9%
Cancelled	1.4%	—	2.1%	1.5%
Average departure delay (late minutes only)	13.9 min	—	22.0 min	17.3 min
Scheduled departures a day	44	—	37	20,100
Scheduled departures	1,322	—	13,561	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	296	22%	79.1%	4.6 min	1.4%
OO SkyWest Airlines	248	19%	81.5%	6.1 min	0.8%
9E Endeavor Air	232	18%	84.5%	-4.4 min	1.3%
G4 Allegiant Air	191	14%	71.7%	13.5 min	1.6%
DL Delta Air Lines	137	10%	86.1%	-1.2 min	2.2%
AA American Airlines	115	9%	78.3%	6.0 min	0.9%
MQ Envoy Air	60	5%	86.7%	-7.4 min	1.7%
YX Republic Airline	32	2%	90.6%	-21.4 min	3.1%
F9 Frontier Airlines	11	1%	54.5%	5.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TYS–ATL	Knoxville to Atlanta	226	84.1%	0.4 min	1.3%
TYS–CLT	Knoxville to Charlotte	212	72.6%	8.4 min	1.4%
TYS–ORD	Knoxville to Chicago	188	80.9%	9.0 min	1.1%
TYS–LGA	Knoxville to New York	112	88.4%	-17.4 min	2.7%
TYS–DCA	Knoxville to Washington	100	88.0%	-3.9 min	2.0%
TYS–DFW	Knoxville to Dallas/Fort Worth	93	81.7%	2.4 min	0.0%
TYS–DEN	Knoxville to Denver	82	78.0%	-1.0 min	0.0%
TYS–DTW	Knoxville to Detroit	62	85.5%	-0.2 min	1.6%
TYS–SFB	Knoxville to Sanford	42	69.0%	7.7 min	4.8%
TYS–PHL	Knoxville to Philadelphia	34	91.2%	3.7 min	2.9%
TYS–PIE	Knoxville to St. Petersburg	33	75.8%	0.8 min	3.0%
TYS–MIA	Knoxville to Miami	31	90.3%	-6.2 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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	41.0%	36.7%	7,176
Late-arriving aircraft	32.3%	42.2%	5,659
National Aviation System	16.1%	15.7%	2,824
Extreme weather	10.5%	5.1%	1,831
Security	0.0%	0.2%	4

17,494 delay minutes on 237 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 August 2023?

81.8% of 1,322 scheduled domestic departures left less than 15 minutes late, and 80.5% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 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 August 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.