Route on-time record

SAN to SJC: most on-time flights and the best time to fly

San Diego (San Diego International Airport) to San Jose (Norman Y. Mineta San Jose International Airport). 4,980 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Southwest 3093 at 6:45 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

SAN → SJC

San Diego to San Jose: 4,980 nonstop flights a year

On time (12 months)

78%

Cancelled

0.9%

avg delay 12 min

Best time to leave

Before 9 AM

93% on time vs 69% after 9 PM

Most reliable airline

SkyWest

81% chance on time

Check SAN to SJC fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

#1 · Southwest 3093
6:45 AM → 8:15 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2628; its record covers all of them.
93%
chance on time
On time (history)
95%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 95% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; After 9 PM: 69%).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
Moderate track record · 87 flights
Find Southwest 3093 fares Opens this date on Aviasales
#2 · Southwest 3118
8:05 AM → 9:35 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 96% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; After 9 PM: 69%).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
Limited track record · 54 flights
Find Southwest 3118 fares Opens this date on Aviasales
#3 · SkyWest 3359 · sold as United Express, Delta Connection, American Eagle or Alaska
8:10 AM → 9:58 AM1h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
On time (history)
89%
Cancelled
0.4%
Avg arrival delay
6 min
- Arrived on time 89% of the time (279 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; After 9 PM: 69%).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
Strong track record · 279 flights
Find 8:10 AM flight fares Opens this date on Aviasales
#4 · Southwest 879
8:15 AM → 9:50 AM1h 35m nonstop
Local times, typical schedule. Last flown 2026-04-06.
87%
chance on time
On time (history)
89%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 89% of the time (28 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; After 9 PM: 69%).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 879 fares Opens this date on Aviasales
#5 · Southwest 3366
9:30 AM → 11:00 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
On time (history)
83%
Cancelled
2.1%
Avg arrival delay
6 min
- Arrived on time 83% of the time (46 flights, Jun 2025 to May 2026).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (46 flights), so its score leans on the airline's record at this hour.
Limited track record · 46 flights
Find Southwest 3366 fares Opens this date on Aviasales
#6 · SkyWest 3014 · sold as United Express, Delta Connection, American Eagle or Alaska
3:58 PM → 5:38 PM1h 40m nonstop
Local times, typical schedule. Last flown 2026-04-21.
83%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
4 min
- Arrived on time 91% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Departs outside SAN's trouble window (6 AM to noon, when 66% of its 164 ground stops and delay programs started).
- Short track record (32 flights), so its score leans on the airline's record at this hour.
Limited track record · 32 flights
Find 3:58 PM flight fares Opens this date on Aviasales
#7 · Southwest 777
11:30 AM → 1:05 PM1h 35m nonstop
Local times, typical schedule. Last flown 2026-05-27.
83%
chance on time
On time (history)
88%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 88% of the time (16 flights, Jun 2025 to May 2026).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 777 fares Opens this date on Aviasales
#8 · SkyWest 3015 · sold as United Express, Delta Connection, American Eagle or Alaska
10:25 AM → 12:03 PM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-12.
82%
chance on time
On time (history)
83%
Cancelled
4.2%
Avg arrival delay
7 min
- Arrived on time 83% of the time (46 flights, Jun 2025 to May 2026).
- Cancelled 4.2% of the time (2 of 48).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (46 flights), so its score leans on the airline's record at this hour.
Limited track record · 46 flights
Find 10:25 AM flight fares Opens this date on Aviasales
#9 · Southwest 2742
10:00 AM → 11:35 AM1h 35m nonstop
Local times, typical schedule. Last flown 2026-04-01.
82%
chance on time
On time (history)
100%
Cancelled
0.0%
Avg arrival delay
0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2742 fares Opens this date on Aviasales
#10 · SkyWest 3498 · sold as United Express, Delta Connection, American Eagle or Alaska
5:04 PM → 6:45 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
On time (history)
81%
Cancelled
0.4%
Avg arrival delay
12 min
- Arrived on time 81% of the time (257 flights, Jun 2025 to May 2026).
- Departs outside SAN's trouble window (6 AM to noon, when 66% of its 164 ground stops and delay programs started).
Strong track record · 257 flights
Find 5:04 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)81%
1,170 flights · 82% on time as flown · 1.2% cancel
Southwest Airlines77%
3,748 flights · 77% on time as flown · 0.8% cancel
Spirit Airlines76%
43 flights · 72% on time as flown · 0.7% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM93%
959 flights · avg delay 3 min
9 AM to noon84%
836 flights · avg delay 8 min
Noon to 3 PM73%
988 flights · avg delay 15 min
3 to 6 PM71%
978 flights · avg delay 16 min
6 to 9 PM73%
985 flights · avg delay 16 min
After 9 PM69%
234 flights · avg delay 15 min

Best day: Tuesday (86%). Worst: Friday (72%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

What delays this route

Late-arriving aircraft65%
Airline (crew, maintenance, boarding)24%
Air traffic control and airport volume9%
Severe weather2%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

SAN to SJC questions

What time of day is best to fly SAN to SJC?: Before 9 AM: 93% of flights arrived on time, against 69% for departures after 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from SAN to SJC?: SkyWest, with a season-adjusted 81% chance of operating and arriving on time over 1,170 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on SAN to SJC?: July (73% on time); the best was January (86%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?: No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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