OnTimeStats

Historical on-time performance

Newark to Buffalo

282 miData through Dec 2025Source: US DOT · BTS

Flights on EWR–BUF arrive on time 63% of the time over the last 12 months.

On-time rate63%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled5.6%of scheduled flights

based on 178 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.

  • Republic Airways
    On-time71%
    Medianon time
    p9035 min
    Cancel9.1%
    Flights55
  • United Airlines
    On-time59%
    Medianon time
    p90105 min
    Cancel4.1%
    Flights123

Why flights run late

Delay causes

  • Airline20%
  • Weather0%
  • Air traffic (NAS)7%
  • Late aircraft72%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly EWR → BUF

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 59% to 89% on time.

  • Middays89% on time · p90 15 min · 266 flights
  • Mornings88% on time · p90 15 min · 361 flights
  • Afternoons79% on time · p90 25 min · 622 flights
  • Evenings73% on time · p90 20 min · 70 flights · limited
  • Overnights59% on time · p90 85 min · 996 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.

  • Tuesdays78% on time · p90 40 min · 347 flights
  • Thursdays77% on time · p90 60 min · 343 flights
  • Wednesdays74% on time · p90 70 min · 343 flights
  • Saturdays72% on time · p90 45 min · 254 flights
  • Fridays70% on time · p90 55 min · 342 flights
  • Sundays69% on time · p90 70 min · 334 flights
  • Mondays69% on time · p90 65 min · 352 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.