OnTimeStats

Historical on-time performance

Tucson to Las Vegas

365 miData through May 2026Source: US DOT · BTS

Flights on TUS–LAS arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 1,250 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time85%
    Medianon time
    p9025 min
    Cancel0.2%
    Flights1,250

Why flights run late

Delay causes

  • Airline18%
  • Weather3%
  • Air traffic (NAS)25%
  • Late aircraft53%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather50%
  • Air traffic (NAS)50%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 2 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 TUS → LAS

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

Best time of day

Mornings are the most reliable time of day to fly this route — 96% on time.

  • Mornings96% on time · p90 on time · 1,209 flights
  • Middays82% on time · p90 25 min · 998 flights
  • Evenings75% on time · p90 55 min · 878 flights
  • Overnights73% on time · p90 40 min · 149 flights · limited
  • Afternoons69% on time · p90 60 min · 665 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 90% on time.

  • Tuesdays90% on time · p90 15 min · 542 flights
  • Wednesdays88% on time · p90 15 min · 534 flights
  • Saturdays87% on time · p90 20 min · 401 flights
  • Sundays81% on time · p90 35 min · 581 flights
  • Mondays80% on time · p90 40 min · 607 flights
  • Thursdays77% on time · p90 45 min · 612 flights
  • Fridays77% on time · p90 45 min · 622 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.