OnTimeStats

Historical on-time performance

Eugene to Salt Lake City

619 miData through May 2026Source: US DOT · BTS

Flights on EUG–SLC arrive on time 93% of the time over the last 12 months.

On-time rate93%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 730 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time93%
    Medianon time
    p905 min
    Cancel0.0%
    Flights730

Why flights run late

Delay causes

  • Airline79%
  • Weather15%
  • Air traffic (NAS)5%
  • Late aircraft0%
  • Security1%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline17%
  • Weather83%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 23 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly EUG → SLC

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 91% to 92% on time.

  • Middays92% on time · p90 5 min · 1,095 flights
  • Mornings91% on time · p90 5 min · 1,097 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 89% to 94% on time.

  • Fridays94% on time · p90 5 min · 315 flights
  • Thursdays93% on time · p90 5 min · 314 flights
  • Mondays93% on time · p90 5 min · 312 flights
  • Wednesdays91% on time · p90 10 min · 312 flights
  • Tuesdays91% on time · p90 10 min · 312 flights
  • Saturdays90% on time · p90 10 min · 315 flights
  • Sundays89% on time · p90 15 min · 316 flights

Keep exploring

Related pages

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.