Route
DEN → SJC
Denver International Airport Mineta San Jose International Airport
How punctual is this route?
- On-time arrivals
- 73.5%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,547
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 9%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.8% | 264 |
| October 2025 | 80.8% | 246 |
| November 2025 | 89.1% | 249 |
| December 2025 | 73.1% | 218 |
| January 2026 | 86.8% | 183 |
| February 2026 | 77.4% | 178 |
| March 2026 | 76.0% | 172 |
| April 2026 | 68.9% | 167 |
| May 2026 | 68.5% | 197 |
| June 2026 | 53.6% | 221 |
| July 2026 | 59.6% | 231 |
| August 2026 | 63.9% | 221 |
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 | 1,523 | 68.0% | 0.7% | 55 min |
| United Airlines | 990 | 81.6% | 0.0% | 68 min |
| Frontier Airlines | 34 | 79.4% | 0.0% | 34 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2745
27% late · 256 flights
-
UA670
11% late · 171 flights
-
UA535
12% late · 108 flights
-
UA1883
31% late · 89 flights
-
UA2187
23% late · 83 flights
-
UA1380
5% late · 80 flights
-
WN494
15% late · 66 flights
-
WN2636
23% late · 60 flights
-
WN1313
2% late · 58 flights
-
WN576
29% late · 58 flights
-
WN1728
62% late · 57 flights
-
WN2076
68% late · 57 flights
-
WN3168
46% late · 57 flights
-
WN4530
26% late · 53 flights
-
WN1727
71% late · 52 flights
-
WN2073
16% late · 50 flights
-
UA2808
30% late · 47 flights
-
WN2635
17% late · 46 flights
-
WN3158
9% late · 46 flights
-
WN2743
50% late · 44 flights
-
WN1186
22% late · 40 flights
-
UA2224
6% late · 36 flights
-
WN2641
35% late · 36 flights
-
F94917
21% late · 34 flights
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