Historical on-time performance
Houston to New York
1,416 miData through May 2026Source: US DOT · BTS
Flights on IAH–LGA arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights
based on 3,899 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time72%Medianon timep9060 minCancel4.0%Flights1,338
- United AirlinesOn-time69%Medianon timep9080 minCancel1.8%Flights2,378
- Spirit AirlinesOn-time60%Medianon timep90100 minCancel3.3%Flights183
Why flights run late
Delay causes
- Airline25%
- Weather5%
- Air traffic (NAS)47%
- Late aircraft23%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline32%
- Weather51%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 101 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 → LGA
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 · 3,416 flights
- Middays74% on time · p90 55 min · 2,463 flights
- Evenings67% on time · p90 75 min · 3,325 flights
- Afternoons66% on time · p90 85 min · 2,795 flights
Best day of week
Saturdays are the most reliable day to fly this route — 80% on time.
- Saturdays80% on time · p90 45 min · 1,104 flights
- Wednesdays76% on time · p90 50 min · 1,843 flights
- Tuesdays76% on time · p90 55 min · 1,846 flights
- Thursdays72% on time · p90 60 min · 1,834 flights
- Fridays71% on time · p90 70 min · 1,826 flights
- Mondays70% on time · p90 65 min · 1,860 flights
- Sundays69% on time · p90 85 min · 1,686 flights
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