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Route Reliability

STS → Santa Ana

STS–SNA · 433 miles · STS Airport to John Wayne Airport

82
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
12 min
Average arrival delay
0.8%
Cancelled
746
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 78% of the time across 746 flights. No comparison to make.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 80% of the time, against 77% between 12–3 PM.

Friday is doing you no favors.

STS–SNA flights arrived on time 84% of the time on Wednesdays and just 68% on Fridays. That gap is worth planning around.

Trending in the right direction.

STS–SNA flights arrived on time 88% of the time over the last three months in the data, compared with 76% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon70%(111 flights)
  • Tue84%(98 flights)
  • Wed84%(99 flights)
  • Thu82%(108 flights)
  • Fri68%(110 flights)
  • Sat79%(101 flights)
  • Sun79%(113 flights)
On-time by departure window
  • 9 AM–12 PM77%(361 flights)
  • 12–3 PM77%(230 flights)
  • 3–6 PM80%(143 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
92%
May

Jun 77% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%60
July 202563%62
August 202577%61
September 202578%60
October 202581%62
November 202574%69
December 202562%89
January 202679%57
February 202689%44
March 202684%55
April 202690%60
May 202692%61

Same trip, other airports

Keep nerding

Based on 746 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.