Best Time to Fly LGB to DEN: On-Time Stats by Hour & Airline
Long Beach Airport → Denver International
Data through July 2026 · Last updated October 18, 2026
1,007 flights were scheduled from Long Beach (LGB) to Denver (DEN) in the last 12 months, and 82.1% of those that flew arrived on time, 4.5 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
January has been the best month (93% on time) and Friday the weakest day of the week (78%).
0.1% of flights were cancelled, versus 1.8% nationally.
LGB 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 |
|---|---|---|---|---|
| Southwest Airlines | 82.1% | 61 min | 0.1% | 1,007 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGB to DEN
On-time arrival % by scheduled departure hour (local time), 2,033 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 92.7% | 0.0% | 330 |
| 7am–8am | 94.9% | 0.8% | 258 |
| 8am–9am | 88.5% | 0.9% | 114 |
| 9am–10am | 90.8% | 0.0% | 185 |
| 10am–11am | 85.5% | 0.8% | 118 |
| 11am–12pm | 87.2% | 0.0% | 125 |
| 12pm–1pm | 85.4% | 1.1% | 91 |
| 1pm–2pm | 83.0% | 0.5% | 201 |
| 2pm–3pm | 65.0% | 0.0% | 204 |
| 3pm–4pm | 57.5% | 0.5% | 187 |
| 4pm–5pm | 70.3% | 0.6% | 176 |
| 5pm–6pm | Limited data | 18 | |
| 6pm–7pm | Limited data | 24 | |
| 7pm–8pm | Limited data | 1 | |
| 8pm–9pm | 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 LGB 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) | 90.2% | +6.4 pts | 0.0% | 41 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.0% | -3.9 pts | 2.3% | 87 |
| Summer peak (Jun 15 - Aug 15) | 76.0% | -7.9 pts | 0.5% | 377 |
| All other days | 83.9% | — | 0.3% | 1,528 |
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).