OnTimeStats

Historical on-time performance

Newark to Denver

1,605 miData through May 2026Source: US DOT · BTS

Flights on EWR–DEN arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 3,299 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time77%
    Medianon time
    p9050 min
    Cancel1.3%
    Flights3,299

Why flights run late

Delay causes

  • Airline30%
  • Weather6%
  • Air traffic (NAS)29%
  • Late aircraft36%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline11%
  • Weather84%
  • Air traffic (NAS)5%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 44 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 EWR → DEN

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 — 85% on time.

  • Mornings85% on time · p90 20 min · 2,950 flights
  • Middays80% on time · p90 35 min · 1,721 flights
  • Afternoons71% on time · p90 65 min · 2,561 flights
  • Overnights69% on time · p90 75 min · 847 flights
  • Evenings64% on time · p90 95 min · 1,470 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.

  • Tuesdays80% on time · p90 40 min · 1,363 flights
  • Wednesdays78% on time · p90 40 min · 1,355 flights
  • Sundays77% on time · p90 45 min · 1,370 flights
  • Mondays76% on time · p90 45 min · 1,367 flights
  • Saturdays73% on time · p90 65 min · 1,350 flights
  • Thursdays73% on time · p90 60 min · 1,370 flights
  • Fridays72% on time · p90 60 min · 1,374 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.