OnTimeStats

Historical on-time performance

Raleigh-durham to Los Angeles

2,238 miData through Dec 2025Source: US DOT · BTS

Flights on RDU–LAX arrive on time 88% of the time over the last 12 months.

On-time rate88%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 611 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.

  • Delta Air Lines
    On-time88%
    Medianon time
    p9015 min
    Cancel0.3%
    Flights363
  • American Airlines
    On-time86%
    Medianon time
    p9020 min
    Cancel0.4%
    Flights248

Why flights run late

Delay causes

  • Airline49%
  • Weather5%
  • Air traffic (NAS)17%
  • Late aircraft30%
  • 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 RDU → LAX

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 — 87% on time.

  • Mornings87% on time · p90 15 min · 1,269 flights
  • Evenings76% on time · p90 60 min · 862 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.

  • Wednesdays86% on time · p90 25 min · 297 flights
  • Saturdays85% on time · p90 25 min · 231 flights
  • Thursdays83% on time · p90 35 min · 332 flights
  • Tuesdays82% on time · p90 30 min · 298 flights
  • Fridays81% on time · p90 50 min · 338 flights
  • Sundays81% on time · p90 30 min · 329 flights
  • Mondays80% on time · p90 35 min · 340 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.