OnTimeStats

Historical on-time performance

Las Vegas to Memphis

1,416 miData through Dec 2025Source: US DOT · BTS

Flights on LAS–MEM arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 182 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Spirit Airlinesbest
    On-time90%
    Medianon time
    p9010 min
    Cancel0.0%
    Flights60
  • Southwest Airlines
    On-time75%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights122

Why flights run late

Delay causes

  • Airline56%
  • Weather0%
  • Air traffic (NAS)23%
  • Late aircraft21%
  • 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 LAS → MEM

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 92% on time.

  • Mornings92% on time · p90 10 min · 880 flights
  • Middays79% on time · p90 35 min · 489 flights
  • Afternoons75% on time · p90 50 min · 481 flights
  • Evenings68% on time · p90 80 min · 75 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 90% on time.

  • Wednesdays90% on time · p90 10 min · 192 flights · limited
  • Fridays84% on time · p90 25 min · 368 flights
  • Saturdays84% on time · p90 20 min · 203 flights
  • Tuesdays84% on time · p90 20 min · 189 flights · limited
  • Thursdays83% on time · p90 35 min · 298 flights
  • Mondays83% on time · p90 25 min · 363 flights
  • Sundays80% on time · p90 35 min · 312 flights
Advertisement

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.