Best Time to Fly MEM to DEN: On-Time Stats by Hour & Airline
Memphis International → Denver International
Data through July 2026 · Last updated October 18, 2026
1,364 flights were scheduled from Memphis (MEM) to Denver (DEN) in the last 12 months, and 78.9% of those that flew arrived on time, 1.3 points above the US average of 77.6%.
United Airlines was the most punctual of the 3 airlines on the route at 82.1%, while Southwest Airlines trailed at 75.0%.
October has been the best month (87% on time) and Thursday the weakest day of the week (75%).
0.9% of flights were cancelled, versus 1.8% nationally.
MEM to DEN 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 |
|---|---|---|---|---|
| United Airlines | 82.1% | 76 min | 1.1% | 727 |
| Frontier Airlines | 76.2% | 87 min | 0.7% | 144 |
| Southwest Airlines | 75.0% | 57 min | 0.6% | 492 |
| SkyWest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MEM to DEN
On-time arrival % by scheduled departure hour (local time), 2,586 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.3% | 2.5% | 40 |
| 6am–7am | 90.8% | 0.0% | 98 |
| 7am–8am | 86.4% | 0.0% | 89 |
| 8am–9am | 84.5% | 0.9% | 734 |
| 9am–10am | 87.5% | 0.0% | 72 |
| 10am–11am | 84.2% | 1.7% | 116 |
| 11am–12pm | 85.7% | 0.0% | 78 |
| 12pm–1pm | 76.7% | 0.0% | 73 |
| 1pm–2pm | 82.7% | 0.0% | 99 |
| 2pm–3pm | Limited data | 10 | |
| 3pm–4pm | 73.5% | 0.6% | 643 |
| 4pm–5pm | 77.2% | 2.0% | 201 |
| 5pm–6pm | 50.0% | 0.0% | 72 |
| 6pm–7pm | 50.9% | 0.0% | 108 |
| 7pm–8pm | 69.9% | 0.0% | 83 |
| 8pm–9pm | 81.4% | 0.0% | 70 |
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 DEN
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) | 85.1% | +5.1 pts | 0.0% | 47 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.0% | +3.9 pts | 0.0% | 106 |
| Summer peak (Jun 15 - Aug 15) | 69.6% | -10.5 pts | 0.9% | 457 |
| All other days | 80.0% | — | 0.7% | 1,976 |
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).