FlightRecord

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

Data through July 2026

Bozeman Yellowstone International Airport (BZN) is a tale of two seasons: departures ran 89% on-time in October 2024 but sank to 73% in July 2026. Across the year it averages 80% against a national 78%, over roughly 32 departures a day to 28 destinations.

Departures on-time
80%
left <15 min late
Avg dep delay
17 min
Arrivals on-time
79%
Cancelled
0.8%
Destinations
28
nonstop
Airlines
9

Plan your departure from BZN

The choices most likely to improve your odds, based on this airport’s historical record.

Best departure time
Around 6 a.m.
95% on-time
Best day to fly
Wednesday
82% on-time
Most reliable airline here
Delta Air Lines
87% on-time from BZN
Cancellation risk
0.8%
below the US average
Check routes from BZN ↓Compare nearby airports ↓

Monthly on-time trend

Monthly departure on-time percentage at BZN50%75%100%August 2024: 79% on-time (1,112 flights)79Aug 2024September 2024: 88% on-time (902 flights)88October 2024: 89% on-time (729 flights)89November 2024: 86% on-time (587 flights)86Nov 2024December 2024: 84% on-time (791 flights)84January 2025: 75% on-time (781 flights)75February 2025: 74% on-time (752 flights)74Feb 2025March 2025: 83% on-time (928 flights)83April 2025: 84% on-time (568 flights)84May 2025: 82% on-time (720 flights)82May 2025June 2025: 76% on-time (1,129 flights)76July 2025: 74% on-time (1,330 flights)74August 2025: 78% on-time (1,300 flights)78Aug 2025September 2025: 86% on-time (1,081 flights)86October 2025: 87% on-time (861 flights)87November 2025: 87% on-time (660 flights)87Nov 2025December 2025: 74% on-time (941 flights)74January 2026: 85% on-time (890 flights)85February 2026: 82% on-time (848 flights)82Feb 2026March 2026: 78% on-time (1,020 flights)78April 2026: 84% on-time (717 flights)84May 2026: 82% on-time (849 flights)82May 2026June 2026: 76% on-time (1,258 flights)76July 2026: 73% on-time (1,379 flights)73

Best time of day to depart from BZN

On-time percentage by scheduled departure hour at BZN5 a.m.: 94% on-time (1,334 flights)56 a.m.: 95% on-time (1,561 flights)67 a.m.: 93% on-time (1,840 flights)78 a.m.: 93% on-time (512 flights)89 a.m.: 92% on-time (155 flights)910 a.m.: 84% on-time (1,552 flights)1011 a.m.: 80% on-time (2,068 flights)1112 p.m.: 79% on-time (1,958 flights)121 p.m.: 75% on-time (2,676 flights)132 p.m.: 74% on-time (2,774 flights)143 p.m.: 78% on-time (2,345 flights)154 p.m.: 70% on-time (2,232 flights)165 p.m.: 69% on-time (835 flights)176 p.m.: 80% on-time (817 flights)187 p.m.: 69% on-time (546 flights)19scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday80%14 min
Tuesday82%14 min
Wednesdaybest82%17 min
Thursday79%19 min
Friday78%20 min
Saturday77%20 min
Sunday77%19 min

Next: compare the busiest routes from BZN ↓

Busiest routes from BZN

RouteFlights/12moOn-timeAvg delay
BZN → DEN (Denver)2,72278%16 min
BZN → SEA (Seattle)1,57381%12 min
BZN → ORD (Chicago)1,26775%25 min
BZN → SLC (Salt Lake City)1,16289%10 min
BZN → MSP (Minneapolis)80587%11 min
BZN → DFW (Dallas/Fort Worth)71371%32 min
BZN → LAS (Las Vegas)59879%17 min
BZN → LAX (Los Angeles)54388%10 min
BZN → ATL (Atlanta)42982%22 min
BZN → SFO (San Francisco)37877%22 min
BZN → EWR (Newark)37570%28 min
BZN → BOS (Boston)20763%41 min
BZN → AZA (Phoenix)15074%23 min
BZN → BNA (Nashville)12282%15 min
BZN → MDW (Chicago)12084%8 min
BZN → JFK (New York)11362%47 min
BZN → SAN (San Diego)10769%18 min

Compare airlines departing BZN ↓

Where flights into BZN come from

RouteFlights/12moOn-timeAvg delay
DEN (Denver) → BZN2,72179%13 min
SEA (Seattle) → BZN1,57479%11 min
ORD (Chicago) → BZN1,26871%19 min
SLC (Salt Lake City) → BZN1,16287%9 min
MSP (Minneapolis) → BZN80581%12 min
DFW (Dallas/Fort Worth) → BZN71270%22 min
LAS (Las Vegas) → BZN59976%14 min
LAX (Los Angeles) → BZN54288%9 min

Most reliable routes

  1. BZN → SLC89%
  2. BZN → LAX88%
  3. BZN → MSP87%
  4. BZN → MDW84%
  5. BZN → BNA82%

Most delay-prone routes

  1. BZN → JFK62%
  2. BZN → BOS63%
  3. BZN → SAN69%
  4. BZN → EWR70%
  5. BZN → DFW71%

What causes delays at BZN

Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing BZN.

  • Late-arriving aircraft34%
  • Airline operations31%
  • National airspace system27%
  • Weather7%

Alternative airports near Bozeman

Other airports within 120 miles, compared on departure reliability.

AirportDistanceOn-time departuresAvg delay
BTM — Bert Mooney Airport66 mi91%11 min
HLN — Helena Regional Airport70 mi88%15 min
GTF — Great Falls International Airport118 mi90%10 min

Compare the airport-level record first, then check the exact route you plan to book.

Airline performance at BZN

AirlineOn-time departuresAvg delayFlights
Delta Air Lines87%14 min4,101
SkyWest Airlines86%11 min4,473
United Airlines80%18 min5,784
Alaska Airlines79%12 min1,258
Allegiant Air78%22 min757
Envoy Air77%14 min114
Southwest Airlines76%15 min3,942
American Airlines69%35 min2,397
JetBlue Airways60%44 min471

Frequently asked questions

How often are flights delayed at BZN?
20% of departures from Bozeman Yellowstone International Airport left 15+ minutes late between 2024-07 and 2026-07, 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 7 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 2026 was the weakest month at BZN, with 73% of departures on time.
How often are flights cancelled at BZN?
0.8% of scheduled departures from BZN were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Related guides

Based on 23,297 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.