SJC to SAN flight delays & on-time performance
Nonstop flights from Mineta San Jose International Airport to San Diego International Airport · 417 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
71%
arrived < 15 min late
Cancelled
1.0%
50 flights
Avg arrival delay
15 min
46 min when late
Airlines
4
4,986 flights tracked
Key facts
- Flights from San Jose (SJC) to San Diego (SAN) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1% were cancelled, and 7% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (75% on time); Southwest Airlines was the least (69%).
- Departures scheduled around 6am did best (92% on time); around 7pm did worst (50%).
- Tuesday was the most reliable day to fly (84% on time) and Friday the least (59%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from SJC to SAN?
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 |
|---|---|---|---|---|---|
| Alaska Airlines | 84% | 0.0% | 9 min | 3.8% | 80 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 75% | 1.4% | 13 min | 5.6% | 1,159 |
| Southwest Airlines | 69% | 0.9% | 16 min | 6.9% | 3,740 |
| Spirit Airlines | 43% | 0.0% | 23 min | 14.3% | 7 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%361 flights
- 7am87%421 flights
- 8am82%312 flights
- 9am85%308 flights
- 10am72%546 flights
- 11am66%312 flights
- 12pm72%274 flights
- 1pm70%268 flights
- 2pm67%332 flights
- 3pm59%264 flights
- 4pm63%212 flights
- 5pm66%509 flights
- 6pm53%224 flights
- 7pm50%319 flights
- 8pm62%215 flights
- 9pm55%92 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday68%0.9% cancelled
- Tuesday84%0.9% cancelled
- Wednesday79%1.5% cancelled
- Thursday65%1.3% cancelled
- Friday59%1.0% cancelled
- Saturday83%0.6% cancelled
- Sunday65%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 aircraft40%
- Air traffic control & airport congestion39%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather48%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion22%
- Security0%
SJC to SAN: common questions
- How often are SJC to SAN flights on time?
- 71% 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 Jose to San Diego cancelled?
- 1.0% of scheduled flights were cancelled (50 of 4,986).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 46 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at SJC?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAN to SJC — 76% on time
More flights from San Jose
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SJC → SAN, nonstop flights by US airlines that report to the DOT. How we calculate this.