OnTimeStats

Historical on-time performance

Buffalo to Newark

282 miData through May 2026Source: US DOT · BTS

Flights on BUF–EWR arrive on time 87% of the time over the last 12 months.

On-time rate87%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights

based on 265 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • United Airlines
    On-time89%
    Medianon time
    p9010 min
    Cancel2.2%
    Flights92
  • Republic Airways
    On-time86%
    Medianon time
    p9015 min
    Cancel2.9%
    Flights173

Why flights run late

Delay causes

  • Airline68%
  • Weather0%
  • Air traffic (NAS)10%
  • Late aircraft22%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 7 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 BUF → EWR

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 67% to 89% on time.

  • Middays89% on time · p90 10 min · 461 flights
  • Mornings87% on time · p90 10 min · 971 flights
  • Evenings67% on time · p90 70 min · 472 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 88% on time.

  • Tuesdays88% on time · p90 10 min · 295 flights
  • Wednesdays84% on time · p90 20 min · 293 flights
  • Saturdays83% on time · p90 20 min · 236 flights
  • Mondays82% on time · p90 20 min · 297 flights
  • Thursdays82% on time · p90 40 min · 299 flights
  • Fridays81% on time · p90 25 min · 300 flights
  • Sundays79% on time · p90 25 min · 278 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.