Best Time to Fly DEN to MEM: On-Time Stats by Hour & Airline
Denver International → Memphis International
Data through July 2026 · Last updated October 18, 2026
1,364 flights were scheduled from Denver (DEN) to Memphis (MEM) in the last 12 months, and 76.8% of those that flew arrived on time, 0.8 points below the US average of 77.6%.
Frontier Airlines was the most punctual of the 3 airlines on the route at 85.3%, while Southwest Airlines trailed at 65.6%.
October has been the best month (88% on time) and Friday the weakest day of the week (70%).
0.8% of flights were cancelled, versus 1.8% nationally.
DEN to MEM 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 |
|---|---|---|---|---|
| Frontier Airlines | 85.3% | 62 min | 0.7% | 144 |
| United Airlines | 82.8% | 72 min | 0.8% | 727 |
| Southwest Airlines | 65.6% | 58 min | 0.8% | 492 |
| SkyWest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to MEM
On-time arrival % by scheduled departure hour (local time), 2,586 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 5 | |
| 7am–8am | Limited data | 4 | |
| 8am–9am | 90.2% | 0.0% | 51 |
| 9am–10am | Limited data | 11 | |
| 10am–11am | 81.1% | 0.6% | 511 |
| 11am–12pm | 86.8% | 1.3% | 390 |
| 12pm–1pm | 65.2% | 0.0% | 46 |
| 1pm–2pm | 81.1% | 1.3% | 75 |
| 2pm–3pm | 85.7% | 0.0% | 105 |
| 3pm–4pm | 77.2% | 0.0% | 124 |
| 4pm–5pm | 90.7% | 0.0% | 43 |
| 5pm–6pm | 71.5% | 0.7% | 581 |
| 6pm–7pm | 72.2% | 0.7% | 302 |
| 7pm–8pm | 47.9% | 0.9% | 213 |
| 8pm–9pm | 50.0% | 1.2% | 85 |
| 9pm–10pm | 35.0% | 0.0% | 40 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to MEM
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) | 87.2% | +9.9 pts | 0.0% | 47 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.5% | -1.8 pts | 0.0% | 106 |
| Summer peak (Jun 15 - Aug 15) | 60.3% | -17.1 pts | 0.9% | 457 |
| All other days | 77.3% | — | 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).