SAN to SJC flight delays & on-time performance
Nonstop flights from San Diego International Airport to Mineta San Jose International Airport · 417 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
76%
arrived < 15 min late
Cancelled
0.8%
42 flights
Avg arrival delay
13 min
50 min when late
Airlines
4
4,958 flights tracked
Key facts
- Flights from San Diego (SAN) to San Jose (SJC) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.8% were cancelled, and 6% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (81% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 6am did best (97% on time); around 4pm did worst (59%).
- Wednesday was the most reliable day to fly (86% on time) and Friday the least (69%).
- The largest source of delay minutes was late-arriving aircraft (67%).
Which airline is most on time from SAN to SJC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 81% | 1.2% | 11 min | 5.9% | 1,126 |
| Alaska Airlines | 78% | 0.0% | 8 min | 0.0% | 79 |
| Southwest Airlines | 75% | 0.7% | 13 min | 6.0% | 3,746 |
| Spirit Airlines | 57% | 0.0% | 60 min | 14.3% | 7 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am97%233 flights
- 7am95%256 flights
- 8am92%479 flights
- 9am88%289 flights
- 10am79%326 flights
- 11am85%195 flights
- 12pm72%412 flights
- 1pm67%235 flights
- 2pm70%302 flights
- 3pm72%174 flights
- 4pm59%343 flights
- 5pm73%508 flights
- 6pm71%281 flights
- 7pm65%294 flights
- 8pm74%336 flights
- 9pm65%244 flights
- 10pm78%51 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%0.8% cancelled
- Tuesday85%0.7% cancelled
- Wednesday86%1.4% cancelled
- Thursday74%1.4% cancelled
- Friday69%0.5% cancelled
- Saturday84%0.2% cancelled
- Sunday69%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft67%
- Airline (crew, maintenance, cleaning, fueling)23%
- Air traffic control & airport congestion8%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather48%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion19%
- Security0%
SAN to SJC: common questions
- How often are SAN to SJC flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Diego to San Jose cancelled?
- 0.8% of scheduled flights were cancelled (42 of 4,958).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 50 min behind schedule on average, and 5.9% of flights were an hour or more late.
- How long is taxi time at SAN?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SJC to SAN — 71% on time
More flights from San Diego
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SAN → SJC, nonstop flights by US airlines that report to the DOT. How we calculate this.