Route
DEN → MEM
Denver International Airport Frederick W. Smith International Airport
How punctual is this route?
- On-time arrivals
- 76.4%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,395
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 10%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.3% | 102 |
| October 2025 | 82.9% | 105 |
| November 2025 | 94.1% | 102 |
| December 2025 | 74.5% | 106 |
| January 2026 | 90.8% | 105 |
| February 2026 | 85.3% | 97 |
| March 2026 | 69.8% | 129 |
| April 2026 | 83.1% | 125 |
| May 2026 | 71.9% | 129 |
| June 2026 | 60.9% | 128 |
| July 2026 | 65.4% | 133 |
| August 2026 | 65.9% | 134 |
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 |
|---|---|---|---|---|
| United Airlines | 727 | 82.9% | 0.8% | 77 min |
| Southwest Airlines | 522 | 64.9% | 1.1% | 65 min |
| Frontier Airlines | 145 | 84.7% | 0.7% | 63 min |
| SkyWest Airlines | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2130
27% late · 327 flights
-
UA2111
7% late · 148 flights
-
F94626
15% late · 145 flights
-
UA791
8% late · 98 flights
-
WN1946
50% late · 58 flights
-
WN2225
63% late · 52 flights
-
UA1112
13% late · 47 flights
-
WN2321
26% late · 42 flights
-
UA1255
3% late · 35 flights
-
UA756
23% late · 35 flights
-
WN1247
16% late · 31 flights
-
WN3312
30% late · 30 flights
-
WN1192
29% late · 28 flights
-
WN3338
46% late · 28 flights
-
WN899
4% late · 28 flights
-
WN4698
22% late · 27 flights
-
WN2896
17% late · 24 flights
-
UA2789
5% late · 21 flights
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