Route on-time record
SJC to LAX: most on-time flights and the best time to fly
San Jose (Norman Y. Mineta San Jose International Airport) to Los Angeles (Los Angeles International Airport). 4,405 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was SkyWest 3979 at 6:45 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SJC → LAX
San Jose to Los Angeles: 4,405 nonstop flights a year
On time (12 months)
87%
Cancelled
0.6%
avg delay 8 min
Best time to leave
Before 9 AM
95% on time vs 80% 6 to 9 PM
Most reliable airline
SkyWest
92% chance on time
Lowest nonstop fare seen in the next two months: $23 (Frontier 2458 on 2026-11-05). 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 · SkyWest 3979 · sold as United Express, Delta Connection, American Eagle or Alaska
6:45 AM → 8:09 AM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-06.
97%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.3%
- Avg arrival delay
- 5 min
- Arrived on time 97% of the time (298 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 6 to 9 PM: 80%).
Strong track record · 298 flights
Find 6:45 AM flight fares Opens this date on Aviasales#2 · Southwest 3828
6:30 AM → 7:55 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% 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: 95% on time; 6 to 9 PM: 80%).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 3828 fares Opens this date on Aviasales#3 · SkyWest 3950 · sold as United Express, Delta Connection, American Eagle or Alaska
1:59 PM → 3:17 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-06.
94%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (24 flights, Jun 2025 to May 2026).
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find 1:59 PM flight fares Opens this date on Aviasales#4 · SkyWest 3915 · sold as United Express, Delta Connection, American Eagle or Alaska
9:53 AM → 11:15 AM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 21 min
- Arrived on time 92% of the time (25 flights, Jun 2025 to May 2026).
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find 9:53 AM flight fares Opens this date on Aviasales#5 · SkyWest 3883 · sold as United Express, Delta Connection, American Eagle or Alaska
8:35 PM → 10:03 PM1h 28m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (299 flights, Jun 2025 to May 2026).
- Never cancelled in 299 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 80% on time; Before 9 AM: 95%).
Strong track record · 299 flights
Find 8:35 PM flight fares Opens this date on Aviasales#6 · SkyWest 3851 · sold as United Express, Delta Connection, American Eagle or Alaska
3:37 PM → 4:59 PM1h 22m nonstop
Local times, typical schedule. Last flown 2026-04-12.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 94% of the time (36 flights, Jun 2025 to May 2026).
- Never cancelled in 36 scheduled flights.
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (36 flights), so its score leans on the airline's record at this hour.
Limited track record · 36 flights
Find 3:37 PM flight fares Opens this date on Aviasales#7 · Southwest 3050
6:40 AM → 8:00 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-04-06.
93%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (15 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 6 to 9 PM: 80%).
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 3050 fares Opens this date on Aviasales#8 · Delta 1226
11:41 AM → 1:04 PM1h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 96% of the time (25 flights, Jun 2025 to May 2026).
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find Delta 1226 fares Opens this date on Aviasales#9 · Southwest 2117
9:00 AM → 10:25 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 1670; its record covers all of them.
92%
chance on time
- On time (history)
- 98%
- Cancelled
- 3.9%
- Avg arrival delay
- 1 min
- Arrived on time 98% of the time (49 flights, Jun 2025 to May 2026).
- Cancelled 3.9% of the time (2 of 51).
- Short track record (49 flights), so its score leans on the airline's record at this hour.
Limited track record · 49 flights
Find Southwest 2117 fares Opens this date on Aviasales#10 · SkyWest 3842 · sold as United Express, Delta Connection, American Eagle or Alaska
4:12 PM → 5:41 PM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 92% of the time (118 flights, Jun 2025 to May 2026).
- Never cancelled in 118 scheduled flights.
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 118 flights
Find 4:12 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)92%
2,153 flights · 93% on time as flown · 0.4% cancel
- Delta Air Lines88%
360 flights · 92% on time as flown · 2.5% cancel
- Frontier Airlines85%
77 flights · 85% on time as flown · 1.3% cancel
- Southwest Airlines80%
1,808 flights · 80% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
924 flights · avg delay 4 min
- 9 AM to noon93%
883 flights · avg delay 5 min
- Noon to 3 PM84%
662 flights · avg delay 8 min
- 3 to 6 PM86%
841 flights · avg delay 9 min
- 6 to 9 PM80%
1,008 flights · avg delay 12 min
Best day: Tuesday (92%). Worst: Sunday (83%).
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 aircraft43%
- Airline (crew, maintenance, boarding)41%
- Air traffic control and airport volume11%
- Severe weather5%
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
SJC to LAX questions
- What time of day is best to fly SJC to LAX?
- Before 9 AM: 95% of flights arrived on time, against 80% for departures 6 to 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 SJC to LAX?
- SkyWest, with a season-adjusted 92% chance of operating and arriving on time over 2,153 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 SJC to LAX?
- December (83% on time); the best was November (90%), 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.
More routes from SJC
- LAX to SJC (return)
- SJC to SAN 74%
- SJC to SEA 83%
- SJC to LAS 80%
- SJC to PHX 83%
- SJC to SNA 87%
- SJC to DEN 81%
- SJC to BUR 84%
- SJC to SLC 92%
- SJC to PDX 85%
- SJC to ONT 84%
- SJC to LGB 86%
- SJC to DFW 81%
Live status: FAA delays and ground stops