Historical on-time performance
Denver to Houston
883 miData through May 2026Source: US DOT · BTS
Flights on DEN–HOU arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 2,344 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time72%Medianon timep9050 minCancel0.4%Flights2,344
Why flights run late
Delay causes
- Airline33%
- Weather1%
- Air traffic (NAS)14%
- Late aircraft52%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline22%
- Weather22%
- Air traffic (NAS)56%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 9 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 DEN → HOU
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 15 min · 2,678 flights
- Middays75% on time · p90 40 min · 1,511 flights
- Afternoons67% on time · p90 55 min · 1,093 flights
- Evenings58% on time · p90 80 min · 1,425 flights
- Overnights58% on time · p90 80 min · 948 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Wednesdays78% on time · p90 35 min · 1,073 flights
- Tuesdays75% on time · p90 45 min · 1,068 flights
- Mondays74% on time · p90 40 min · 1,193 flights
- Sundays74% on time · p90 45 min · 1,135 flights
- Saturdays73% on time · p90 40 min · 818 flights
- Thursdays71% on time · p90 50 min · 1,172 flights
- Fridays69% on time · p90 55 min · 1,196 flights
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