Historical on-time performance
Houston to Detroit
Flights on IAH–DTW arrive on time 79% of the time over the last 12 months.
based on 1,902 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time81%Medianon timep9035 minCancel0.9%Flights1,321
- Spirit AirlinesOn-time78%Medianon timep9035 minCancel1.9%Flights368
- United AirlinesOn-time65%Medianon timep9065 minCancel2.3%Flights213
Why flights run late
Delay causes
- Airline48%
- Weather6%
- Air traffic (NAS)14%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline54%
- Weather46%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 24 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 → DTW
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 — 86% on time.
- Mornings86% on time · p90 15 min · 1,915 flights
- Middays81% on time · p90 30 min · 1,642 flights
- Afternoons76% on time · p90 55 min · 1,367 flights
- Evenings72% on time · p90 65 min · 1,168 flights
- Overnights69% on time · p90 60 min · 796 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 81% on time.
- Tuesdays81% on time · p90 35 min · 950 flights
- Wednesdays81% on time · p90 30 min · 946 flights
- Saturdays80% on time · p90 40 min · 854 flights
- Mondays79% on time · p90 35 min · 1,041 flights
- Sundays79% on time · p90 45 min · 1,022 flights
- Thursdays78% on time · p90 45 min · 1,032 flights
- Fridays76% on time · p90 60 min · 1,043 flights
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