OnTimeStats

Historical on-time performance

Salt Lake City to Kalispell

532 miData through Dec 2025Source: US DOT · BTS

Flights on SLC–FCA 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)
Cancelled0.5%of scheduled flights

based on 1,128 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time93%
    Medianon time
    p905 min
    Cancel0.6%
    Flights791
  • Delta Air Lines
    On-time85%
    Medianon time
    p9020 min
    Cancel0.3%
    Flights337

Why flights run late

Delay causes

  • Airline41%
  • Weather43%
  • Air traffic (NAS)7%
  • Late aircraft9%
  • Security0%

Most delay minutes here are attributed to Weather.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SLC → FCA

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 81% to 94% on time.

  • Middays94% on time · p90 5 min · 343 flights
  • Mornings93% on time · p90 5 min · 937 flights
  • Afternoons89% on time · p90 15 min · 1,007 flights
  • Overnights81% on time · p90 30 min · 1,149 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 86% to 91% on time.

  • Tuesdays91% on time · p90 10 min · 496 flights
  • Saturdays89% on time · p90 15 min · 456 flights
  • Wednesdays88% on time · p90 15 min · 497 flights
  • Mondays87% on time · p90 15 min · 499 flights
  • Fridays87% on time · p90 15 min · 498 flights
  • Thursdays87% on time · p90 20 min · 495 flights
  • Sundays86% on time · p90 15 min · 495 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.