Historical on-time performance
Colorado Springs to Phoenix
551 miData through May 2026Source: US DOT · BTS
Flights on COS–PHX arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 993 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time82%Medianon timep9030 minCancel0.2%Flights993
Why flights run late
Delay causes
- Airline21%
- Weather3%
- Air traffic (NAS)17%
- Late aircraft58%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 COS → PHX
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 — 93% on time.
- Mornings93% on time · p90 5 min · 1,045 flights
- Middays84% on time · p90 25 min · 761 flights
- Afternoons77% on time · p90 35 min · 405 flights
- Evenings69% on time · p90 65 min · 632 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.
- Tuesdays86% on time · p90 20 min · 413 flights
- Saturdays85% on time · p90 25 min · 333 flights
- Wednesdays83% on time · p90 25 min · 411 flights
- Sundays83% on time · p90 25 min · 415 flights
- Fridays82% on time · p90 35 min · 455 flights
- Thursdays82% on time · p90 35 min · 450 flights
- Mondays80% on time · p90 35 min · 453 flights
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