Route
DEN → SMF
Denver International Airport Sacramento International Airport
How punctual is this route?
- On-time arrivals
- 73.2%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,853
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 35%
- Air traffic control & airport 10%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.2% | 344 |
| October 2025 | 77.7% | 336 |
| November 2025 | 86.1% | 319 |
| December 2025 | 68.6% | 303 |
| January 2026 | 81.7% | 264 |
| February 2026 | 81.8% | 259 |
| March 2026 | 74.7% | 291 |
| April 2026 | 73.4% | 289 |
| May 2026 | 71.4% | 322 |
| June 2026 | 59.0% | 376 |
| July 2026 | 66.8% | 395 |
| August 2026 | 68.4% | 355 |
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 | 1,866 | 65.3% | 0.5% | 57 min |
| United Airlines | 1,791 | 80.5% | 0.1% | 67 min |
| Frontier Airlines | 194 | 82.4% | 0.0% | 69 min |
| SkyWest Airlines | 2 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1208
19% late · 363 flights
-
UA2132
29% late · 343 flights
-
UA1415
19% late · 338 flights
-
UA2149
7% late · 308 flights
-
F93665
18% late · 194 flights
-
UA1602
24% late · 153 flights
-
UA662
19% late · 102 flights
-
WN836
14% late · 64 flights
-
WN1738
10% late · 61 flights
-
WN136
93% late · 60 flights
-
WN3539
59% late · 58 flights
-
UA1268
44% late · 57 flights
-
WN1322
40% late · 57 flights
-
WN2086
9% late · 57 flights
-
WN4096
54% late · 53 flights
-
WN4961
8% late · 53 flights
-
WN1741
33% late · 52 flights
-
WN1744
66% late · 51 flights
-
WN840
50% late · 50 flights
-
WN857
13% late · 47 flights
-
WN978
28% late · 47 flights
-
WN1088
15% late · 46 flights
-
WN2135
29% late · 45 flights
-
WN1645
15% late · 39 flights
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