OnTimeStats

Historical on-time performance

Houston to New York

1,417 miData through Dec 2025Source: US DOT · BTS

Flights on IAH–JFK arrive on time 63% of the time over the last 12 months.

On-time rate63%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights

based on 154 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-time61%
    Medianon time
    p90165 min
    Cancel6.5%
    Flights62
  • JetBlue Airways
    On-time64%
    Medianon time
    p9065 min
    Cancel1.1%
    Flights92

Why flights run late

Delay causes

  • Airline34%
  • Weather1%
  • Air traffic (NAS)35%
  • Late aircraft30%
  • Security0%

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

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly IAH → JFK

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 56% to 72% on time.

  • Mornings72% on time · p90 45 min · 94 flights · limited
  • Middays66% on time · p90 75 min · 526 flights
  • Evenings58% on time · p90 105 min · 244 flights
  • Afternoons56% on time · p90 135 min · 175 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 54% to 71% on time.

  • Wednesdays71% on time · p90 50 min · 147 flights · limited
  • Tuesdays71% on time · p90 85 min · 147 flights · limited
  • Mondays65% on time · p90 90 min · 156 flights · limited
  • Thursdays60% on time · p90 100 min · 150 flights · limited
  • Fridays60% on time · p90 90 min · 154 flights · limited
  • Saturdays59% on time · p90 135 min · 137 flights · limited
  • Sundays54% on time · p90 90 min · 148 flights · limited
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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.