ON TIMEBOARD
ATL Atlanta / BZN Bozeman

ATL → BZN on time

Atlanta Hartsfield-Jackson (Atlanta, GA) to Bozeman Yellowstone (Bozeman, MT). Every scheduled flight, September 2025 to August 2026.

On time
80%
arrived < 15 min late
Cancelled
1.4%
437 flights
Typical arrival
−2 min
median vs schedule
When late
+44 min
average delay
Flights / day
1
1 airline

80% of flights from Atlanta to Bozeman arrived on time over the past 12 months. That is about the typical U.S. route. 5% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for ATL → BZN: when a flight was late, it was under 45 minutes late 73% of the time. About 1 in 34 flights landed an hour or more late, and 1 in 219 three hours or more; 1.4% were cancelled outright.

Share of all 437 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines43780%1.4%−2 min3.0%+44 minDelta Air Lines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at ATL). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%8 a.m. departures: too few flights (23 flights)8a9 a.m. departures: too few flights (50 flights)9a10 a.m. departures: too few flights10a11 a.m. departures: 80% on time (364 flights)8011a
ATL → BZN, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: July (84%). Worst: March (72%).

40%70%100%Jan: 78% on time (118 flights)78JanFeb: 82% on time (101 flights)82FebMar: 72% on time (115 flights)72MarApr: too few flights (91 flights)AprMay: too few flights (97 flights)MayJun: 77% on time (105 flights)77JunJul: 84% on time (112 flights)84JulAug: 77% on time (105 flights)77AugSep: too few flights (82 flights)SepOct: too few flights (74 flights)OctNov: too few flights (74 flights)NovDec: 78% on time (114 flights)78Dec

By day of week

DayFlightsOn timeCancelled
Monday58——
Tuesday55——
Wednesday54——
Thursday53——
Friday55——
Saturday81——
Sunday81——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 34%Late inbound plane 27%Severe weather 1%

Cancellations: airline 3 · weather 3

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
DL 40611:15 a.m.36480%0.8%−2 minDelta Air Lines

Questions

How often are flights from ATL to BZN on time?

80% of 437 scheduled flights from Atlanta, GA to Bozeman, MT arrived within 15 minutes of schedule between September 2025 and August 2026. 1.4% were cancelled.

What month has the most delays from ATL to BZN?

March (72% on time). The best month is July (84%), over 2023–2026.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.