OnTimeStats

Historical on-time performance

Minneapolis to Portland

1,136 miData through Dec 2025Source: US DOT · BTS

Flights on MSP–PWM arrive on time 90% of the time over the last 12 months.

On-time rate90%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 92 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-time90%
    Medianon time
    p9010 min
    Cancel0.0%
    Flights92

Why flights run late

Delay causes

  • Airline68%
  • Weather0%
  • Air traffic (NAS)26%
  • Late aircraft6%
  • 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 → PWM

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 — 92% on time.

  • Mornings92% on time · p90 10 min · 285 flights
  • Middays84% on time · p90 25 min · 142 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 97% on time.

  • Wednesdays97% on time · p90 5 min · 58 flights · limited
  • Tuesdays96% on time · p90 5 min · 53 flights · limited
  • Thursdays92% on time · p90 10 min · 62 flights · limited
  • Sundays90% on time · p90 5 min · 63 flights · limited
  • Fridays87% on time · p90 20 min · 63 flights · limited
  • Mondays81% on time · p90 30 min · 59 flights · limited
  • Saturdays81% on time · p90 35 min · 69 flights · limited
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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.