COS to PHX flight delays & on-time performance
Nonstop flights from City of Colorado Springs Municipal Airport to Phoenix Sky Harbor International Airport · 551 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at COS or PHX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Colorado Springs (COS) to Phoenix (PHX) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.1% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (97% on time); around 6pm did worst (58%).
- Saturday was the most reliable day to fly (89% on time) and Friday the least (76%).
- The largest source of delay minutes was late-arriving aircraft (61%).
Which airline is most on time from COS to PHX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 82% | 0.1% | 11 min | 5.8% | 1,001 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am95%83 flights
- 6am97%185 flights
- 7am89%56 flights
- 9am89%19 flights
- 10am90%30 flights
- 11am84%95 flights
- 12pm86%72 flights
- 1pm65%51 flights
- 2pm67%36 flights
- 4pm62%86 flights
- 5pm85%79 flights
- 6pm58%52 flights
- 7pm75%77 flights
- 8pm82%45 flights
- 9pm52%27 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%0.0% cancelled
- Tuesday88%0.0% cancelled
- Wednesday84%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday76%0.0% cancelled
- Saturday89%0.9% cancelled
- Sunday78%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)19%
- Air traffic control & airport congestion18%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)100%
- Extreme weather0%
- Air traffic control & airport congestion0%
- Security0%
COS to PHX: common questions
- How often are COS to PHX flights on time?
- 82% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Colorado Springs to Phoenix cancelled?
- 0.1% of scheduled flights were cancelled (1 of 1,001).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 58 min behind schedule on average, and 5.8% of flights were an hour or more late.
- How long is taxi time at COS?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHX to COS — 74% on time
More flights from Colorado Springs
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: COS → PHX, nonstop flights by US airlines that report to the DOT. How we calculate this.