OnTimeStats

Historical on-time performance

New York to Las Vegas

2,248 miData through May 2026Source: US DOT · BTS

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

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights

based on 3,672 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time83%
    Medianon time
    p9025 min
    Cancel1.2%
    Flights402
  • JetBlue Airways
    On-time80%
    Medianon time
    p9035 min
    Cancel2.3%
    Flights1,374
  • Delta Air Lines
    On-time77%
    Medianon time
    p9045 min
    Cancel2.4%
    Flights1,682
  • Frontier Airlines
    On-time63%
    Medianon time
    p9070 min
    Cancel1.9%
    Flights214

Why flights run late

Delay causes

  • Airline35%
  • Weather4%
  • Air traffic (NAS)32%
  • Late aircraft28%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline28%
  • Weather58%
  • Air traffic (NAS)14%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 81 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 JFK → 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 — 85% on time.

  • Mornings85% on time · p90 20 min · 3,869 flights
  • Middays83% on time · p90 30 min · 1,888 flights
  • Afternoons78% on time · p90 40 min · 1,250 flights
  • Evenings70% on time · p90 65 min · 2,108 flights
  • Overnights70% on time · p90 65 min · 1,409 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 83% on time.

  • Wednesdays83% on time · p90 30 min · 1,473 flights
  • Tuesdays81% on time · p90 35 min · 1,460 flights
  • Thursdays79% on time · p90 40 min · 1,561 flights
  • Fridays79% on time · p90 40 min · 1,554 flights
  • Mondays78% on time · p90 40 min · 1,558 flights
  • Saturdays77% on time · p90 45 min · 1,349 flights
  • Sundays75% on time · p90 50 min · 1,569 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.