Historical on-time performance
Houston to Newark
Flights on IAH–EWR arrive on time 73% of the time over the last 12 months.
based on 3,566 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- United AirlinesOn-time73%Medianon timep9060 minCancel1.6%Flights3,473
- Spirit AirlinesOn-time68%Medianon timep9060 minCancel7.5%Flights93
Why flights run late
Delay causes
- Airline22%
- Weather8%
- Air traffic (NAS)46%
- Late aircraft24%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline10%
- Weather81%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 62 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 → EWR
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 · 4,078 flights
- Overnights71% on time · p90 55 min · 818 flights
- Middays71% on time · p90 60 min · 2,903 flights
- Evenings64% on time · p90 75 min · 1,187 flights
- Afternoons61% on time · p90 110 min · 2,237 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 79% on time.
- Tuesdays79% on time · p90 35 min · 1,586 flights
- Wednesdays76% on time · p90 40 min · 1,574 flights
- Mondays74% on time · p90 50 min · 1,609 flights
- Saturdays72% on time · p90 65 min · 1,601 flights
- Fridays71% on time · p90 65 min · 1,626 flights
- Thursdays71% on time · p90 60 min · 1,608 flights
- Sundays70% on time · p90 70 min · 1,619 flights
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