OnTimeStats

Historical on-time performance

Raleigh-durham to New York

431 miData through May 2026Source: US DOT · BTS

Flights on RDU–LGA arrive on time 64% of the time over the last 12 months.

On-time rate64%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled6.4%of scheduled flights

based on 2,608 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-time64%
    Medianon time
    p90100 min
    Cancel4.1%
    Flights241
  • Republic Airways
    On-time64%
    Medianon time
    p9085 min
    Cancel6.5%
    Flights2,214
  • Frontier Airlines
    On-time61%
    Medianon time
    p90120 min
    Cancel8.5%
    Flights153

Why flights run late

Delay causes

  • Airline18%
  • Weather3%
  • Air traffic (NAS)43%
  • Late aircraft36%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline16%
  • Weather52%
  • Air traffic (NAS)32%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 168 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 RDU → LGA

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 — 84% on time.

  • Mornings84% on time · p90 25 min · 2,953 flights
  • Middays74% on time · p90 50 min · 2,425 flights
  • Afternoons69% on time · p90 85 min · 2,515 flights
  • Evenings61% on time · p90 95 min · 2,141 flights
  • Overnights35% on time · p90 105 min · 253 flights

Best day of week

Saturdays are the most reliable day to fly this route — 79% on time.

  • Saturdays79% on time · p90 40 min · 731 flights
  • Wednesdays74% on time · p90 55 min · 1,628 flights
  • Tuesdays73% on time · p90 70 min · 1,640 flights
  • Thursdays73% on time · p90 65 min · 1,633 flights
  • Mondays71% on time · p90 60 min · 1,630 flights
  • Sundays70% on time · p90 75 min · 1,409 flights
  • Fridays69% on time · p90 75 min · 1,616 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.