Route
DEN → LGB
Denver International Airport Long Beach International Airport
How punctual is this route?
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,005
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 55%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 11%
- Extreme weather 1%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 70.9% | 86 |
| October 2025 | 58.2% | 80 |
| November 2025 | 72.8% | 81 |
| December 2025 | 68.4% | 81 |
| January 2026 | 86.6% | 67 |
| February 2026 | 81.8% | 66 |
| March 2026 | 76.7% | 90 |
| April 2026 | 83.3% | 90 |
| May 2026 | 80.6% | 93 |
| June 2026 | 55.1% | 90 |
| July 2026 | 69.7% | 92 |
| August 2026 | 71.6% | 89 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,005 | 72.7% | 0.6% | 51 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2059
37% late · 64 flights
-
WN4259
53% late · 60 flights
-
WN1921
28% late · 58 flights
-
WN1983
7% late · 58 flights
-
WN2993
18% late · 57 flights
-
WN2251
12% late · 42 flights
-
WN1037
44% late · 36 flights
-
WN1580
25% late · 36 flights
-
WN4448
39% late · 33 flights
-
WN4677
12% late · 33 flights
-
WN2506
52% late · 31 flights
-
WN3388
6% late · 31 flights
-
WN1699
0% late · 30 flights
-
WN2844
20% late · 30 flights
-
WN2660
21% late · 28 flights
-
WN1261
44% late · 25 flights
-
WN1410
50% late · 25 flights
-
WN1541
12% late · 24 flights
-
WN200
8% late · 24 flights
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