OnTimeStats

Historical on-time performance

Salt Lake City to Bozeman

347 miData through Dec 2025Source: US DOT · BTS

Flights on SLC–BZN arrive on time 87% of the time over the last 12 months.

On-time rate87%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 1,033 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time90%
    Medianon time
    p9010 min
    Cancel0.2%
    Flights439
  • Delta Air Lines
    On-time85%
    Medianon time
    p9020 min
    Cancel0.3%
    Flights594

Why flights run late

Delay causes

  • Airline62%
  • Weather15%
  • Air traffic (NAS)9%
  • Late aircraft13%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SLC → BZN

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 82% to 87% on time.

  • Mornings87% on time · p90 20 min · 274 flights
  • Evenings87% on time · p90 25 min · 239 flights
  • Afternoons86% on time · p90 20 min · 907 flights
  • Middays86% on time · p90 20 min · 948 flights
  • Overnights82% on time · p90 25 min · 1,088 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 83% to 87% on time.

  • Tuesdays87% on time · p90 20 min · 495 flights
  • Saturdays87% on time · p90 15 min · 483 flights
  • Wednesdays86% on time · p90 20 min · 496 flights
  • Mondays85% on time · p90 25 min · 498 flights
  • Fridays84% on time · p90 20 min · 495 flights
  • Thursdays83% on time · p90 25 min · 491 flights
  • Sundays83% on time · p90 30 min · 498 flights
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.