OnTimeStats

Historical on-time performance

Las Vegas to Spokane

806 miData through May 2026Source: US DOT · BTS

Flights on LAS–GEG arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 750 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time78%
    Medianon time
    p9030 min
    Cancel0.5%
    Flights750

Why flights run late

Delay causes

  • Airline34%
  • Weather0%
  • Air traffic (NAS)8%
  • Late aircraft57%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline75%
  • Weather25%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 4 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 LAS → GEG

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 64% to 88% on time.

  • Mornings88% on time · p90 15 min · 552 flights
  • Afternoons84% on time · p90 25 min · 108 flights · limited
  • Middays81% on time · p90 25 min · 723 flights
  • Evenings76% on time · p90 50 min · 361 flights
  • Overnights64% on time · p90 60 min · 547 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 86% on time.

  • Wednesdays86% on time · p90 20 min · 266 flights
  • Saturdays84% on time · p90 25 min · 348 flights
  • Tuesdays78% on time · p90 25 min · 272 flights
  • Mondays77% on time · p90 35 min · 269 flights
  • Sundays76% on time · p90 45 min · 459 flights
  • Thursdays74% on time · p90 45 min · 410 flights
  • Fridays71% on time · p90 40 min · 267 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.