OnTimeStats

Historical on-time performance

Minneapolis to Washington

908 miData through Dec 2025Source: US DOT · BTS

Flights on MSP–IAD arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 837 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time84%
    Medianon time
    p9030 min
    Cancel0.2%
    Flights837

Why flights run late

Delay causes

  • Airline57%
  • Weather19%
  • Air traffic (NAS)24%
  • Late aircraft0%
  • 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 → IAD

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 78% to 87% on time.

  • Mornings87% on time · p90 20 min · 622 flights
  • Overnights84% on time · p90 30 min · 799 flights
  • Middays81% on time · p90 30 min · 865 flights
  • Evenings79% on time · p90 30 min · 267 flights
  • Afternoons78% on time · p90 40 min · 161 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 85% on time.

  • Saturdays85% on time · p90 25 min · 321 flights
  • Wednesdays85% on time · p90 20 min · 389 flights
  • Mondays83% on time · p90 30 min · 406 flights
  • Tuesdays83% on time · p90 30 min · 396 flights
  • Thursdays82% on time · p90 30 min · 400 flights
  • Fridays82% on time · p90 30 min · 400 flights
  • Sundays81% on time · p90 35 min · 402 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.