Route
DEN → BHM
Denver International Airport Birmingham-Shuttlesworth International Airport
How punctual is this route?
- On-time arrivals
- 72.5%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,236
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 21%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 74.2% | 89 |
| October 2025 | 80.6% | 93 |
| November 2025 | 86.4% | 88 |
| December 2025 | 73.1% | 93 |
| January 2026 | 86.0% | 93 |
| February 2026 | 79.8% | 84 |
| March 2026 | 76.1% | 116 |
| April 2026 | 76.7% | 116 |
| May 2026 | 67.8% | 118 |
| June 2026 | 57.8% | 116 |
| July 2026 | 66.1% | 119 |
| August 2026 | 55.0% | 111 |
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 |
|---|---|---|---|---|
| SkyWest Airlines | 604 | 79.2% | 0.3% | 83 min |
| Southwest Airlines | 509 | 63.3% | 0.4% | 67 min |
| United Airlines | 123 | 77.2% | 0.0% | 60 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO5815
21% late · 307 flights
-
OO5985
16% late · 240 flights
-
WN2421
22% late · 64 flights
-
WN1787
51% late · 49 flights
-
WN1536
23% late · 47 flights
-
WN3073
36% late · 42 flights
-
UA1241
24% late · 41 flights
-
UA1357
39% late · 41 flights
-
WN3193
39% late · 36 flights
-
OO4659
29% late · 35 flights
-
WN693
12% late · 33 flights
-
WN1017
61% late · 28 flights
-
WN1981
77% late · 27 flights
-
WN1987
37% late · 27 flights
-
OO4680
52% late · 21 flights
-
UA2030
5% late · 21 flights
-
UA1697
5% late · 20 flights
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