Historical on-time performance
Houston to New York
1,417 miData through May 2026Source: US DOT · BTS
Flights on IAH–JFK arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay55 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
- Delta Air LinesOn-time71%Medianon timep9055 minCancel3.2%Flights154
Why flights run late
Delay causes
- Airline39%
- Weather0%
- Air traffic (NAS)26%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline80%
- Weather20%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 5 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 IAH → JFK
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 68% on time.
- Middays68% on time · p90 65 min · 600 flights
- Evenings59% on time · p90 85 min · 155 flights · limited
- 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 58% to 74% on time.
- Tuesdays74% on time · p90 80 min · 141 flights · limited
- Wednesdays70% on time · p90 45 min · 141 flights · limited
- Mondays67% on time · p90 75 min · 150 flights · limited
- Fridays64% on time · p90 90 min · 152 flights · limited
- Saturdays63% on time · p90 135 min · 141 flights · limited
- Thursdays59% on time · p90 90 min · 148 flights · limited
- Sundays58% on time · p90 65 min · 151 flights · limited
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