FlightRecord

Bozeman Yellowstone International Airport (BZN): Delays & On-Time Performance

Data through May 2026

Bozeman Yellowstone International Airport (BZN) is a tale of two seasons: departures ran 89% on-time in October 2024 but sank to 74% in July 2025. Across the year it averages 81% against a national 78%, over roughly 32 departures a day to 26 destinations.

Departures on-time
81%
left <15 min late
Avg dep delay
17 min
Arrivals on-time
79%
Cancelled
0.7%
Destinations
26
nonstop
Airlines
9

Monthly on-time trend

Monthly departure on-time percentage at BZN50%75%100%June 2024: 80% on-time (1,036 flights)80Jun 2024July 2024: 76% on-time (1,164 flights)76August 2024: 79% on-time (1,112 flights)79September 2024: 88% on-time (902 flights)88Sep 2024October 2024: 89% on-time (729 flights)89November 2024: 86% on-time (587 flights)86December 2024: 84% on-time (791 flights)84Dec 2024January 2025: 75% on-time (781 flights)75February 2025: 74% on-time (752 flights)74March 2025: 83% on-time (928 flights)83Mar 2025April 2025: 84% on-time (568 flights)84May 2025: 82% on-time (720 flights)82June 2025: 76% on-time (1,129 flights)76Jun 2025July 2025: 74% on-time (1,330 flights)74August 2025: 78% on-time (1,300 flights)78September 2025: 86% on-time (1,081 flights)86Sep 2025October 2025: 87% on-time (861 flights)87November 2025: 87% on-time (660 flights)87December 2025: 74% on-time (941 flights)74Dec 2025January 2026: 85% on-time (890 flights)85February 2026: 82% on-time (848 flights)82March 2026: 78% on-time (1,020 flights)78Mar 2026April 2026: 84% on-time (717 flights)84May 2026: 82% on-time (849 flights)82

Best time of day to depart from BZN

On-time percentage by scheduled departure hour at BZN5 a.m.: 94% on-time (1,321 flights)56 a.m.: 95% on-time (1,381 flights)67 a.m.: 93% on-time (1,845 flights)78 a.m.: 92% on-time (379 flights)89 a.m.: 91% on-time (159 flights)910 a.m.: 85% on-time (1,437 flights)1011 a.m.: 80% on-time (1,927 flights)1112 p.m.: 79% on-time (1,765 flights)121 p.m.: 77% on-time (2,501 flights)132 p.m.: 75% on-time (2,640 flights)143 p.m.: 78% on-time (2,190 flights)154 p.m.: 72% on-time (2,036 flights)165 p.m.: 69% on-time (698 flights)176 p.m.: 81% on-time (817 flights)187 p.m.: 72% on-time (501 flights)19scheduled departure hour

Busiest routes from BZN

RouteFlights/12moOn-timeAvg delay
BZN → DEN2,73878%15 min
BZN → SEA1,48381%12 min
BZN → ORD1,23976%23 min
BZN → SLC1,15489%9 min
BZN → MSP80486%12 min
BZN → DFW70771%33 min
BZN → LAS59780%17 min
BZN → LAX57388%10 min

Most reliable routes

  1. BZN → SLC89%
  2. BZN → LAX88%
  3. BZN → MSP86%
  4. BZN → MDW85%
  5. BZN → ATL82%

Most delay-prone routes

  1. BZN → JFK62%
  2. BZN → BOS63%
  3. BZN → EWR70%
  4. BZN → DFW71%
  5. BZN → AZA73%

Airline performance at BZN

AirlineOn-time departuresAvg delayFlights
SkyWest Airlines87%10 min4,213
Delta Air Lines87%15 min3,853
United Airlines81%16 min5,347
Alaska Airlines79%12 min1,211
Southwest Airlines78%14 min3,670
Envoy Air77%14 min114
Allegiant Air77%22 min720
American Airlines70%35 min2,159
JetBlue Airways60%45 min409

Frequently asked questions

How often are flights delayed at BZN?
19% of departures from Bozeman Yellowstone International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 17 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from BZN?
Flights scheduled around 6 a.m. depart on time 95% of the time at BZN, versus 69% around 5 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at BZN?
In this dataset, July 2025 was the weakest month at BZN, with 74% of departures on time.
How often are flights cancelled at BZN?
0.7% of scheduled departures from BZN were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Based on 21,696 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.