Denver (DEN) to Long Beach (LGB): On-Time Performance
Data through July 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 55% in June 2026. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 65%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.5%
- 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 6 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 72% | 16 min |
| Tuesday | 79% | 12 min |
| Wednesdaybest | 82% | 10 min |
| Thursday | 77% | 13 min |
| Friday | 73% | 17 min |
| Saturday | 77% | 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 aircraft53%
- Airline operations33%
- National airspace system11%
- Weather2%
Frequently asked questions
- How often are flights from DEN to LGB delayed?
- 24% of DEN–LGB flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. 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 6 p.m. have the worst (59%). 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 24% of the time.
- How often are DEN to LGB flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to LGB?
- June 2026 was the roughest month in this dataset, with only 55% of arrivals on time. The best was October 2024 at 91%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 2,128 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.