Denver (DEN) to Long Beach (LGB): On-Time Performance
Data through May 2026
When you fly DEN to LGB matters as much as anything else about the booking: the route swung from 91% on-time in October 2024 to just 58% in October 2025. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 65%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 2.8
- last 12 months
- Duration
- 2h 29m
- scheduled
- Distance
- 854 mi
Monthly on-time trend
Best time to fly from DEN to LGB
Aim for departures around 8 a.m. (92% on-time); avoid 4 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 15 min |
| Tuesday | 81% | 11 min |
| Wednesdaybest | 82% | 10 min |
| Thursday | 79% | 12 min |
| Friday | 75% | 17 min |
| Saturday | 76% | 11 min |
| Sunday | 73% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft55%
- Airline operations32%
- National airspace system12%
- Weather2%
Frequently asked questions
- How often are flights from DEN to LGB delayed?
- 23% of DEN–LGB flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 13 minutes.
- What is the best time of day to fly from DEN to LGB?
- Departures around 8 a.m. have the best record (92% on-time), while departures around 4 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to LGB?
- The scheduled DEN–LGB flight time averages 2h 29m over 854 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are DEN to LGB flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to LGB?
- October 2025 was the roughest month in this dataset, with only 58% of arrivals on time. The best was October 2024 at 91%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 2,041 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.