Historical on-time performance
New Orleans to Houston
Flights on MSY–IAH arrive on time 82% of the time over the last 12 months.
based on 2,882 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.
- Spirit AirlinesOn-time84%Medianon timep9025 minCancel0.0%Flights82
- United AirlinesOn-time82%Medianon timep9030 minCancel0.6%Flights2,800
Why flights run late
Delay causes
- Airline21%
- Weather5%
- Air traffic (NAS)39%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 18 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 MSY → IAH
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 — 88% on time.
- Mornings88% on time · p90 10 min · 3,204 flights
- Middays83% on time · p90 25 min · 1,139 flights
- Afternoons80% on time · p90 50 min · 2,245 flights
- Overnights75% on time · p90 60 min · 305 flights
- Evenings73% on time · p90 55 min · 2,030 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 83% on time.
- Wednesdays83% on time · p90 30 min · 1,269 flights
- Tuesdays83% on time · p90 25 min · 1,254 flights
- Saturdays83% on time · p90 30 min · 1,080 flights
- Mondays81% on time · p90 35 min · 1,354 flights
- Fridays81% on time · p90 40 min · 1,354 flights
- Thursdays80% on time · p90 30 min · 1,348 flights
- Sundays80% on time · p90 30 min · 1,264 flights
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