Best Time to Fly MEM to PHX: On-Time Stats by Hour & Airline
Memphis International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
486 flights were scheduled from Memphis (MEM) to Phoenix (PHX) in the last 12 months, and 86.2% of those that flew arrived on time, 8.6 points above the US average of 77.6%.
Envoy Air was the most punctual of the 3 airlines on the route at 95.7%, while Southwest Airlines trailed at 79.8%.
August has been the best month (92% on time) and Monday the weakest day of the week (81%).
1.0% of flights were cancelled, versus 1.8% nationally.
MEM 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 | 95.7% | 49 min | 0.0% | 115 |
| American Airlines | 85.6% | 145 min | 1.3% | 225 |
| Southwest Airlines | 79.8% | 54 min | 0.8% | 126 |
| Delta Air Lines | Limited data | 1 | ||
| SkyWest Airlines | Limited data | 15 | ||
| Frontier Airlines | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MEM to PHX
On-time arrival % by scheduled departure hour (local time), 1,062 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 13 | |
| 7am–8am | 84.6% | 1.1% | 466 |
| 8am–9am | 91.1% | 0.0% | 225 |
| 10am–11am | 91.4% | 2.7% | 37 |
| 11am–12pm | 89.5% | 0.0% | 38 |
| 12pm–1pm | 77.1% | 1.4% | 71 |
| 1pm–2pm | 87.8% | 0.0% | 42 |
| 2pm–3pm | Limited data | 7 | |
| 3pm–4pm | 74.3% | 0.0% | 70 |
| 4pm–5pm | Limited data | 12 | |
| 5pm–6pm | Limited data | 21 | |
| 6pm–7pm | Limited data | 8 | |
| 7pm–8pm | Limited data | 13 | |
| 8pm–9pm | 50.0% | 0.0% | 38 |
| 9pm–10pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MEM 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) | Limited data | 25 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 69.2% | -15.5 pts | 0.0% | 52 |
| Summer peak (Jun 15 - Aug 15) | 84.6% | -0.1 pts | 0.0% | 175 |
| All other days | 84.7% | — | 1.1% | 810 |
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).