Historical on-time performance
Denver to Austin
775 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–AUS arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 4,836 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.
- SkyWest AirlinesOn-time77%Medianon timep9090 minCancel0.0%Flights121
- Frontier AirlinesOn-time67%Medianon timep9070 minCancel0.4%Flights450
- United AirlinesOn-time77%Medianon timep9050 minCancel0.5%Flights1,915
- Southwest AirlinesOn-time72%Medianon timep9050 minCancel0.4%Flights2,350
Why flights run late
Delay causes
- Airline31%
- Weather2%
- Air traffic (NAS)17%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DEN → AUS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 4,029 flights
- Middays79% on time · p90 35 min · 3,442 flights
- Afternoons68% on time · p90 50 min · 1,904 flights
- Overnights65% on time · p90 70 min · 2,040 flights
- Evenings62% on time · p90 70 min · 2,578 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 79% on time.
- Tuesdays79% on time · p90 40 min · 1,893 flights
- Wednesdays76% on time · p90 45 min · 1,969 flights
- Mondays76% on time · p90 45 min · 2,178 flights
- Saturdays75% on time · p90 40 min · 1,576 flights
- Sundays74% on time · p90 50 min · 2,092 flights
- Fridays72% on time · p90 50 min · 2,159 flights
- Thursdays71% on time · p90 50 min · 2,128 flights
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