OnTimeStats

Historical on-time performance

Minneapolis to Boise

1,142 miData through May 2026Source: US DOT · BTS

Flights on MSP–BOI arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 788 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-time78%
    Medianon time
    p9035 min
    Cancel0.6%
    Flights788

Why flights run late

Delay causes

  • Airline56%
  • Weather3%
  • Air traffic (NAS)19%
  • Late aircraft22%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline20%
  • Weather80%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 5 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MSP → BOI

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Middays are the most reliable time of day to fly this route — 87% on time.

  • Middays87% on time · p90 20 min · 1,079 flights
  • Evenings82% on time · p90 30 min · 295 flights
  • Mornings80% on time · p90 20 min · 238 flights
  • Overnights70% on time · p90 50 min · 794 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.

  • Tuesdays85% on time · p90 25 min · 337 flights
  • Saturdays84% on time · p90 20 min · 346 flights
  • Wednesdays80% on time · p90 35 min · 338 flights
  • Sundays80% on time · p90 30 min · 347 flights
  • Thursdays78% on time · p90 35 min · 344 flights
  • Mondays78% on time · p90 35 min · 347 flights
  • Fridays75% on time · p90 35 min · 347 flights

Keep exploring

Related pages

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.