On-Time Report

Airports › Bozeman (BZN) › August 2025

Airport month · August 2025

Bozeman Yellowstone International in August 2025

77.8%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 2025, reporting carriers scheduled 1,300 domestic departures from Bozeman Yellowstone International (BZN). 77.8% left less than 15 minutes late and 73.8% reached their destination on time; 0.5% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so BZN departures were 1.0 points above the national departure figure.

A year earlier, in August 2024, the airport had 1,112 departures with 78.1% leaving on time: a change of −0.3 points, with flights up 17%.

Flights arriving at BZN that month were on time 77.6% of the time (1,301 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 33%, late-arriving aircraft 32% and air carrier 30%.

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

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

MeasureAug 2025Aug 2024BZN, 12 months to Jul 2026All reported flights, Aug 2025
Departed on time77.8%78.1%79.6%76.8%
Arrived on time73.8%76.3%79.5%76.3%
Cancelled0.5%0.8%0.8%1.1%
Average departure delay (late minutes only)20.0 min17.9 min17.2 min17.6 min
Scheduled departures a day43373220,079
Scheduled departures1,3001,11211,804602,378

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
UA United Airlines29623%68.9%13.2 min1.4%
OO SkyWest Airlines27621%82.2%3.8 min0.4%
DL Delta Air Lines20716%84.5%11.2 min0.0%
WN Southwest Airlines20516%69.8%12.6 min0.0%
AA American Airlines17914%63.7%30.0 min0.6%
AS Alaska Airlines574%68.4%12.2 min0.0%
B6 JetBlue Airways494%69.4%39.2 min0.0%
G4 Allegiant Air312%77.4%-2.2 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
BZN–DENBozeman to Denver26861.6%17.6 min0.4%
BZN–SEABozeman to Seattle15080.7%5.1 min0.0%
BZN–ORDBozeman to Chicago14467.4%20.6 min2.8%
BZN–SLCBozeman to Salt Lake City11392.9%-4.8 min0.0%
BZN–DFWBozeman to Dallas/Fort Worth9867.3%17.9 min1.0%
BZN–MSPBozeman to Minneapolis9185.7%-3.1 min0.0%
BZN–EWRBozeman to Newark6264.5%28.2 min0.0%
BZN–LASBozeman to Las Vegas5775.4%6.4 min0.0%
BZN–LAXBozeman to Los Angeles5481.5%4.8 min0.0%
BZN–BOSBozeman to Boston4165.9%92.5 min0.0%
BZN–ATLBozeman to Atlanta3384.8%25.8 min0.0%
BZN–MDWBozeman to Chicago3187.1%4.2 min0.0%

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), August 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Aug 2025Minutes
Air carrier30.0%33.1%8,004
Late-arriving aircraft32.1%40.5%8,553
National Aviation System32.7%19.2%8,712
Extreme weather5.2%7.0%1,392
Security0.0%0.1%0
26,661 delay minutes on 324 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← July 2025September 2025 →

Questions and answers

How many flights left BZN on time in August 2025?

77.8% of 1,300 scheduled domestic departures left less than 15 minutes late, and 73.8% 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, 78.1% of 1,112 departures left on time and 0.8% were cancelled, against 77.8% and 0.5% 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 BZN · methodology · corrections.