FlightRecord

Santa Rosa (STS) to Santa Ana (SNA): On-Time Performance

Data through May 2026

Santa Rosa (STS) to Santa Ana (SNA) effectively runs on two schedules. In May 2026, 92% of arrivals were on time; in February 2025 that fell to 61% — a 31-point seasonal swing. Across the full period the route averages 77% on-time against a national 78%.

On-time
77%
arrived <15 min late
Avg delay
17 min
completed flights
Cancelled
0.6%
Flights/day
2.0
last 12 months
Duration
1h 39m
scheduled
Distance
433 mi

Monthly on-time trend

Monthly on-time percentage for STS to SNA flights50%75%100%June 2024: 79% on-time (52 flights)79Jun 2024July 2024: 81% on-time (52 flights)81August 2024: 86% on-time (58 flights)86September 2024: 75% on-time (60 flights)75Sep 2024October 2024: 74% on-time (62 flights)74November 2024: 85% on-time (59 flights)85December 2024: 62% on-time (53 flights)62Dec 2024January 2025: 77% on-time (51 flights)77February 2025: 61% on-time (44 flights)61March 2025: 80% on-time (54 flights)80Mar 2025April 2025: 70% on-time (60 flights)70May 2025: 76% on-time (62 flights)76June 2025: 77% on-time (60 flights)77Jun 2025July 2025: 63% on-time (62 flights)63August 2025: 77% on-time (62 flights)77September 2025: 78% on-time (60 flights)78Sep 2025October 2025: 81% on-time (62 flights)81November 2025: 73% on-time (69 flights)73December 2025: 62% on-time (93 flights)62Dec 2025January 2026: 79% on-time (57 flights)79February 2026: 89% on-time (44 flights)89March 2026: 84% on-time (55 flights)84Mar 2026April 2026: 88% on-time (60 flights)88May 2026: 92% on-time (62 flights)92

Best time to fly from STS to SNA

Aim for departures around 5 p.m. (86% on-time); avoid 1 p.m. departures (70%).

On-time percentage by scheduled departure hour, STS to SNA9 a.m.: 73% on-time (223 flights)910 a.m.: 77% on-time (336 flights)1011 a.m.: 79% on-time (170 flights)111 p.m.: 70% on-time (33 flights)132 p.m.: 77% on-time (341 flights)143 p.m.: 74% on-time (216 flights)154 p.m.: 77% on-time (39 flights)165 p.m.: 86% on-time (49 flights)17scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday73%21 min
Tuesday82%12 min
Wednesdaybest83%11 min
Thursday75%17 min
Friday70%24 min
Saturday79%14 min
Sunday77%16 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft47%
  • Airline operations19%
  • National airspace system13%
  • Weather21%

Frequently asked questions

How often are flights from STS to SNA delayed?
23% of STS–SNA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 17 minutes.
What is the best time of day to fly from STS to SNA?
Departures around 5 p.m. have the best record (86% on-time), while departures around 1 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from STS to SNA?
The scheduled STS–SNA flight time averages 1h 39m over 433 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
How often are STS to SNA flights cancelled?
0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from STS to SNA?
February 2025 was the roughest month in this dataset, with only 61% of arrivals on time. The best was May 2026 at 92%. If your dates are flexible, that 31-point gap is worth planning around.

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Based on 1,413 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.