Best Time to Fly LAX to DEN: On-Time Stats by Hour & Airline
Los Angeles International → Denver International
Data through July 2026 · Last updated October 18, 2026
7,708 flights were scheduled from Los Angeles (LAX) to Denver (DEN) in the last 12 months, and 82.0% of those that flew arrived on time, 4.3 points above the US average of 77.6%.
Among 5 airlines, United Airlines led with 87.8% on time and Southwest Airlines was last with 73.3%.
Over 24 months, Saturday was the most reliable day (84% on time) and July the worst month (74%).
The cancellation rate was 0.5% (US average 1.8%).
LAX 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 | 87.8% | 65 min | 0.1% | 3,079 |
| SkyWest Airlines | 81.7% | 61 min | 0.8% | 1,200 |
| Frontier Airlines | 81.6% | 88 min | 0.6% | 783 |
| Delta Air Lines | 80.3% | 93 min | 1.5% | 744 |
| Southwest Airlines | 73.3% | 53 min | 0.4% | 1,902 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAX to DEN
On-time arrival % by scheduled departure hour (local time), 15,616 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.7% | 0.5% | 1,176 |
| 6am–7am | 88.9% | 0.8% | 948 |
| 7am–8am | 91.4% | 0.2% | 955 |
| 8am–9am | 88.4% | 0.5% | 2,136 |
| 9am–10am | 87.0% | 0.3% | 648 |
| 10am–11am | 85.3% | 0.5% | 393 |
| 11am–12pm | 87.7% | 0.6% | 725 |
| 12pm–1pm | 85.1% | 0.0% | 937 |
| 1pm–2pm | 75.6% | 0.0% | 613 |
| 2pm–3pm | 73.3% | 0.4% | 1,941 |
| 3pm–4pm | 72.9% | 1.5% | 797 |
| 4pm–5pm | 71.8% | 0.1% | 1,324 |
| 5pm–6pm | 83.9% | 0.0% | 230 |
| 6pm–7pm | 84.4% | 0.2% | 626 |
| 7pm–8pm | 80.7% | 0.2% | 1,260 |
| 8pm–9pm | 81.3% | 0.6% | 848 |
| 9pm–10pm | 68.8% | 2.0% | 49 |
| 10pm–11pm | Limited data | 10 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAX 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) | 85.7% | +1.3 pts | 0.7% | 302 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.7% | -0.6 pts | 0.2% | 640 |
| Summer peak (Jun 15 - Aug 15) | 76.3% | -8.1 pts | 0.7% | 2,698 |
| All other days | 84.4% | — | 0.4% | 11,976 |
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).