OnTimeStats

Historical on-time performance

Las Vegas to Baltimore

2,106 miData through Dec 2025Source: US DOT · BTS

Flights on LAS–BWI arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 1,957 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.

  • Spirit Airlines
    On-time79%
    Medianon time
    p9030 min
    Cancel0.3%
    Flights311
  • Southwest Airlines
    On-time79%
    Medianon time
    p9030 min
    Cancel0.6%
    Flights1,646

Why flights run late

Delay causes

  • Airline42%
  • Weather2%
  • Air traffic (NAS)17%
  • Late aircraft39%
  • 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 → BWI

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 — 89% on time.

  • Mornings89% on time · p90 15 min · 2,214 flights
  • Overnights80% on time · p90 30 min · 955 flights
  • Middays72% on time · p90 35 min · 937 flights
  • Evenings63% on time · p90 60 min · 902 flights
  • Afternoons62% on time · p90 60 min · 776 flights
  • Early mornings58% on time · p90 105 min · 89 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 84% on time.

  • Saturdays84% on time · p90 25 min · 758 flights
  • Wednesdays82% on time · p90 25 min · 846 flights
  • Tuesdays82% on time · p90 25 min · 839 flights
  • Sundays74% on time · p90 35 min · 874 flights
  • Mondays73% on time · p90 40 min · 847 flights
  • Thursdays72% on time · p90 40 min · 853 flights
  • Fridays72% on time · p90 50 min · 856 flights
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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.