Historical on-time performance
New York to Houston
1,416 miData through May 2026Source: US DOT · BTS
Flights on LGA–IAH arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights
based on 3,934 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesbestOn-time80%Medianon timep9025 minCancel4.1%Flights218
- United AirlinesOn-time75%Medianon timep9060 minCancel1.9%Flights2,378
- Delta Air LinesOn-time71%Medianon timep9075 minCancel3.7%Flights1,338
Why flights run late
Delay causes
- Airline33%
- Weather6%
- Air traffic (NAS)27%
- Late aircraft34%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline29%
- Weather52%
- Air traffic (NAS)19%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 104 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 LGA → 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 · 4,158 flights
- Middays77% on time · p90 40 min · 3,443 flights
- Afternoons68% on time · p90 75 min · 2,100 flights
- Evenings63% on time · p90 105 min · 1,737 flights
- Overnights63% on time · p90 100 min · 569 flights
Best day of week
Saturdays are the most reliable day to fly this route — 81% on time.
- Saturdays81% on time · p90 40 min · 1,160 flights
- Tuesdays78% on time · p90 45 min · 1,850 flights
- Fridays77% on time · p90 50 min · 1,828 flights
- Wednesdays77% on time · p90 45 min · 1,847 flights
- Thursdays76% on time · p90 55 min · 1,833 flights
- Mondays75% on time · p90 55 min · 1,860 flights
- Sundays75% on time · p90 55 min · 1,629 flights
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