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Route · DEN → SJC · 2020–2025 BTS data

Denver to San Jose

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to SJC (Denver to San Jose) ranks #564 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.9%
On-time
-1.1 pts
vs US avg
60 min
Delay when late
16,104
Flights
#564 of 4927
Corpus placement

Cancelled

0.5%

Best Month

Nov 2025 89%

Worst Month

Jul 2025 59%

Distance

948 mi

Carriers

19

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 218 58 2 0 WN,UA
Nov 2025 249 27 1 0 UA,F9,WN
Oct 2025 246 47 1 0 UA,WN,F9
Sep 2025 264 48 0 0 UA,WN,F9
Aug 2025 234 66 0 0 WN,F9,UA
Jul 2025 250 102 2 0 UA,WN,F9
Jun 2025 241 89 1 0 OO,UA,WN,F9
May 2025 266 71 1 0 OO,UA,WN,F9
Apr 2025 240 57 1 0 F9,OO,UA,WN
Mar 2025 228 48 0 1 UA,WN,F9
Feb 2025 214 49 0 0 UA,WN,F9
Jan 2025 243 38 0 0 UA,WN,F9
Dec 2024 272 46 0 0 F9,UA,WN
Nov 2024 289 61 0 0 UA,WN,F9
Oct 2024 293 37 0 0 UA,WN,F9
Sep 2024 298 35 0 0 WN,UA,F9
Aug 2024 306 64 1 0 F9,WN,UA
Jul 2024 281 71 3 0 F9,UA,WN
Jun 2024 288 90 2 0 UA,WN
May 2024 272 63 1 0 UA,WN
Apr 2024 224 47 1 0 UA,WN
Mar 2024 219 63 4 0 UA,WN
Feb 2024 209 55 1 0 UA,WN
Jan 2024 226 52 7 0 WN,UA

DEN–SJC seasonal on-time pattern

Best: November (84.8%) · weakest: June (68.1%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 75.4%

Strongest calendar month

November

84.8% on-time · ~235 flights/mo

Busiest calendar month

September

~248 flights/mo avg

Weakest calendar month

June

68.1% on-time · ~229 flights/mo

Cancellation Rate

0.5%

29 of 6,070 flights

Diversion Rate

0.0%

1 of 6,070 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

SJC - San Jose

Full on-time, delay-cause, and seasonal performance for San Jose, CA.

SJC on-time profile

Compare the two airports

See DEN and SJC side by side on delays, cancellations, and reliability.

Compare DEN vs SJC

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: San Jose · fleet on-time rank #3861 of 4927.

What the Data Says About DEN to SJC

The Denver to San Jose corridor (DEN to SJC) posts a 77.9% on-time rate on the lower edge of the average band, based on 16,104 tracked flights. Late flights run 60.1 minutes behind on average. 19 carriers cover the 948-mile route; over the last 24 months, 29 of 6,070 flights were cancelled (0.5%) and 0.0% diverted.

The monthly split is wide on this route: Nov 2025 posted the strongest performance at 89% on-time, while Jul 2025 came in at just 59% - a 30-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–SJC peaks in November at 84.8% on-time while September carries the heaviest traffic (~248 flights per month) ; the softest month is June at 68.1%, a 16.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to SJC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to SJC ranks #564 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from DEN to SJC? ▼
Flights from Denver to San Jose have a 77.9% on-time rate based on 16,104 flights. The average delay is 60.1 minutes. The best recent month was Nov 2025 with 89% on-time.
What is the cancellation rate for DEN to SJC? ▼
Over the last 24 months, 0.5% of flights on this route were cancelled (29 of 6,070 flights) and 0.0% were diverted.
How far is the flight from DEN to SJC? ▼
The flight distance from Denver (DEN) to San Jose (SJC) is approximately 948 miles. This route is served by 19 carriers.
When is the best time to fly from DEN to SJC? ▼
The best recent month for on-time performance was Nov 2025 (89% on-time). The worst was Jul 2025 (59% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
SJC Airport

San Jose
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using DEN–SJC data

DEN–SJC is mid-pack at 77.9% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and SJC airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, November (84.8% on-time) beats June (68.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.