OnTimeStats

Historical on-time performance

Minneapolis to Boston

1,124 miData through Dec 2025Source: US DOT · BTS

Flights on MSP–BOS arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.1%of scheduled flights

based on 1,850 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-time76%
    Medianon time
    p9045 min
    Cancel0.1%
    Flights1,850

Why flights run late

Delay causes

  • Airline33%
  • Weather2%
  • Air traffic (NAS)50%
  • Late aircraft15%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MSP → BOS

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

Best time of day

Mornings are the most reliable time of day to fly this route — 90% on time.

  • Mornings90% on time · p90 10 min · 1,132 flights
  • Middays78% on time · p90 35 min · 2,073 flights
  • Overnights75% on time · p90 40 min · 997 flights
  • Afternoons69% on time · p90 70 min · 1,177 flights
  • Evenings65% on time · p90 75 min · 936 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.

  • Tuesdays82% on time · p90 35 min · 911 flights
  • Saturdays82% on time · p90 30 min · 821 flights
  • Wednesdays78% on time · p90 40 min · 914 flights
  • Mondays74% on time · p90 45 min · 925 flights
  • Thursdays73% on time · p90 45 min · 910 flights
  • Sundays73% on time · p90 50 min · 914 flights
  • Fridays73% on time · p90 50 min · 920 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.