Best Time to Fly MCI to PHX: On-Time Stats by Hour & Airline
Kansas City International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.0% of Kansas City (MCI) to Phoenix (PHX) flights arrived on time (2,474 scheduled flights). That is 1.4 points above the national average of 77.6%.
Envoy Air was the most punctual of the 5 airlines on the route at 90.3%, while SkyWest Airlines trailed at 75.4%.
September has been the best month (86% on time) and Sunday the weakest day of the week (78%).
0.6% of flights were cancelled, versus 1.8% nationally.
MCI to PHX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 90.3% | 36 min | 0.9% | 114 |
| Frontier Airlines | 83.6% | 53 min | 0.0% | 55 |
| American Airlines | 83.0% | 116 min | 1.0% | 596 |
| Southwest Airlines | 76.7% | 54 min | 0.4% | 1,639 |
| SkyWest Airlines | 75.4% | 85 min | 1.4% | 70 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCI to PHX
On-time arrival % by scheduled departure hour (local time), 4,967 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.0% | 1.0% | 415 |
| 6am–7am | 92.3% | 0.2% | 610 |
| 7am–8am | 90.2% | 0.8% | 236 |
| 8am–9am | 82.8% | 1.5% | 259 |
| 9am–10am | 92.1% | 0.6% | 166 |
| 10am–11am | 89.9% | 0.7% | 278 |
| 11am–12pm | 86.8% | 0.7% | 152 |
| 12pm–1pm | 84.6% | 0.0% | 188 |
| 1pm–2pm | 83.0% | 0.0% | 159 |
| 2pm–3pm | 80.4% | 0.5% | 788 |
| 3pm–4pm | 83.3% | 0.7% | 290 |
| 4pm–5pm | 70.8% | 0.0% | 137 |
| 5pm–6pm | 77.1% | 0.8% | 353 |
| 6pm–7pm | 70.9% | 0.7% | 403 |
| 7pm–8pm | 61.9% | 0.7% | 135 |
| 8pm–9pm | 61.6% | 2.8% | 212 |
| 9pm–10pm | 70.8% | 0.7% | 155 |
| 10pm–11pm | 60.0% | 3.2% | 31 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCI to PHX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 76.1% | -6.8 pts | 0.9% | 114 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.0% | -1.9 pts | 1.2% | 246 |
| Summer peak (Jun 15 - Aug 15) | 77.9% | -5.0 pts | 0.5% | 737 |
| All other days | 82.9% | — | 0.7% | 3,870 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).