OnTimeStats

Historical on-time performance

Minneapolis to Williston

553 miData through Dec 2025Source: US DOT · BTS

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

On-time rate78%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights

based on 864 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time78%
    Medianon time
    p9050 min
    Cancel1.0%
    Flights864

Why flights run late

Delay causes

  • Airline70%
  • Weather21%
  • Air traffic (NAS)9%
  • 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 → XWA

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 82% on time.

  • Overnights82% on time · p90 35 min · 689 flights
  • Evenings81% on time · p90 40 min · 398 flights
  • Middays78% on time · p90 45 min · 1,144 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 83% on time.

  • Saturdays83% on time · p90 30 min · 286 flights
  • Thursdays82% on time · p90 30 min · 325 flights
  • Tuesdays79% on time · p90 50 min · 339 flights
  • Fridays79% on time · p90 35 min · 334 flights
  • Wednesdays78% on time · p90 45 min · 331 flights
  • Mondays78% on time · p90 65 min · 335 flights
  • Sundays77% on time · p90 50 min · 306 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.