OnTimeStats

Historical on-time performance

Denver to New York

1,620 miData through May 2026Source: US DOT · BTS

Flights on DEN–LGA arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.8%of scheduled flights

based on 4,523 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-time74%
    Medianon time
    p9050 min
    Cancel4.6%
    Flights1,038
  • United Airlines
    On-time72%
    Medianon time
    p9060 min
    Cancel1.9%
    Flights2,013
  • Southwest Airlines
    On-time62%
    Medianon time
    p9070 min
    Cancel2.6%
    Flights1,441
  • Frontier Airlines
    On-time42%
    Median25 min
    p9085 min
    Cancel6.5%
    Flights31

Why flights run late

Delay causes

  • Airline26%
  • Weather3%
  • Air traffic (NAS)43%
  • Late aircraft28%
  • Security0%

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

When flights don't go

Why flights were cancelled

  • Airline19%
  • Weather61%
  • Air traffic (NAS)20%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 126 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 DEN → 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 — 85% on time.

  • Mornings85% on time · p90 20 min · 4,046 flights
  • Middays72% on time · p90 50 min · 4,266 flights
  • Afternoons64% on time · p90 80 min · 3,497 flights
  • Evenings63% on time · p90 70 min · 2,444 flights

Best day of week

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

  • Saturdays78% on time · p90 40 min · 1,352 flights
  • Tuesdays75% on time · p90 50 min · 2,161 flights
  • Wednesdays75% on time · p90 50 min · 2,161 flights
  • Thursdays71% on time · p90 60 min · 2,181 flights
  • Mondays71% on time · p90 60 min · 2,192 flights
  • Fridays70% on time · p90 65 min · 2,107 flights
  • Sundays69% on time · p90 60 min · 2,115 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.