OnTimeStats

Historical on-time performance

Minneapolis to Missoula

1,013 miData through Dec 2025Source: US DOT · BTS

Flights on MSP–MSO arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 429 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time82%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights429

Why flights run late

Delay causes

  • Airline46%
  • Weather3%
  • Air traffic (NAS)16%
  • Late aircraft36%
  • 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 MSP → MSO

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 77% to 88% on time.

  • Middays88% on time · p90 15 min · 319 flights
  • Evenings85% on time · p90 25 min · 533 flights
  • Overnights77% on time · p90 50 min · 542 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.

  • Tuesdays86% on time · p90 30 min · 200 flights
  • Saturdays85% on time · p90 20 min · 198 flights · limited
  • Fridays83% on time · p90 40 min · 201 flights
  • Mondays82% on time · p90 35 min · 202 flights
  • Thursdays81% on time · p90 45 min · 199 flights · limited
  • Wednesdays81% on time · p90 30 min · 201 flights
  • Sundays80% on time · p90 40 min · 201 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.