Historical on-time performance
Houston to Aspen
913 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–ASE arrive on time 59% of the time over the last 12 months.
On-time rate59%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled5.3%of scheduled flights
based on 507 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time59%Medianon timep9090 minCancel5.3%Flights507
Why flights run late
Delay causes
- Airline38%
- Weather9%
- Air traffic (NAS)24%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAH → ASE
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 52% to 60% on time.
- Evenings60% on time · p90 85 min · 376 flights
- Middays60% on time · p90 90 min · 876 flights
- Mornings54% on time · p90 125 min · 256 flights
- Afternoons52% on time · p90 100 min · 240 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 51% to 65% on time.
- Tuesdays65% on time · p90 70 min · 228 flights
- Wednesdays63% on time · p90 80 min · 237 flights
- Thursdays63% on time · p90 115 min · 254 flights
- Fridays57% on time · p90 95 min · 261 flights
- Mondays57% on time · p90 90 min · 247 flights
- Sundays52% on time · p90 110 min · 255 flights
- Saturdays51% on time · p90 100 min · 266 flights
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