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Flight Reliability

AS 397 · Alaska Airlines

Orlando → San Diego (MCO–SAN)

77
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
9 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AS 397 departing between 6–9 AM arrived on time 92% of the time, versus 63% between 6–9 PM.

Sunday scaries are real for this one.

AS 397 arrived on time 82% of the time on Tuesdays and just 60% on Sundays. That gap is worth planning around.

A bit behind the MCO–SAN route.

AS 397 arrived on time 73% of the time, versus 77% across the MCO–SAN route.

Lagging the Alaska Airlines network.

AS 397 arrived on time 73% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon69%(52 flights)
  • Tue82%(51 flights)
  • Wed78%(50 flights)
  • Thu82%(50 flights)
  • Fri65%(52 flights)
  • Sat73%(52 flights)
  • Sun60%(52 flights)
On-time by departure window
  • 6–9 AM92%(50 flights)
  • 3–6 PM81%(112 flights)
  • 6–9 PM63%(197 flights)
On-time trend by month
81%
May

Jun 60% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202555%31
August 202545%29
September 202552%29
October 202584%31
November 202576%29
December 202593%30
January 202680%30
February 202689%28
March 202687%31
April 202670%30
May 202681%31
Departures on time
70%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.