Tri Cities in August 2025

72.4%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 August 2025, reporting carriers scheduled 156 domestic departures from Tri Cities (TRI). 72.4% left less than 15 minutes late and 69.9% reached their destination on time; 0.6% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so TRI departures were 4.4 points below the national departure figure.

A year earlier, in August 2024, the airport had 191 departures with 90.1% leaving on time: a change of −17.7 points, with flights down 18%.

Flights arriving at TRI that month were on time 74.8% of the time (155 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 54%, late-arriving aircraft 28% and extreme weather 12%.

On time 69.9%
Arrived 15+ minutes late 28.8%
Cancelled 0.6%
Diverted 0.6%

Every scheduled departure from TRI in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	TRI, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	72.4%	90.1%	76.1%	76.8%
Arrived on time	69.9%	88.5%	77.0%	76.3%
Cancelled	0.6%	1.0%	2.1%	1.1%
Average departure delay (late minutes only)	35.1 min	10.3 min	22.1 min	17.6 min
Scheduled departures a day	5	6	4	20,079
Scheduled departures	156	191	1,483	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	62	40%	77.4%	10.5 min	0.0%
DL Delta Air Lines	40	26%	77.5%	13.7 min	2.5%
OO SkyWest Airlines	39	25%	66.7%	43.5 min	0.0%
G4 Allegiant Air	15	10%	26.7%	109.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TRI–ATL	Bristol/Johnson City/Kingsport to Atlanta	79	72.2%	28.6 min	1.3%
TRI–DFW	Bristol/Johnson City/Kingsport to Dallas/Fort Worth	62	77.4%	10.5 min	0.0%
TRI–SFB	Bristol/Johnson City/Kingsport to Sanford	11	36.4%	133.7 min	0.0%
TRI–PIE	Bristol/Johnson City/Kingsport to St. Petersburg	4	0.0%	43.5 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	54.3%	33.1%	2,978
Late-arriving aircraft	28.1%	40.5%	1,543
National Aviation System	5.4%	19.2%	297
Extreme weather	12.2%	7.0%	669
Security	0.0%	0.1%	0

5,487 delay minutes on 45 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 TRI on time in August 2025?

72.4% of 156 scheduled domestic departures left less than 15 minutes late, and 69.9% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 90.1% of 191 departures left on time and 1.0% were cancelled, against 72.4% and 0.6% in August 2025.

Provenance

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