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Flight Reliability

AS 1493 · Alaska Airlines

San Diego → Chicago (SAN–ORD)

66
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
3 min
Average arrival delay
2.2%
Cancelled
9 min early
Median arrival delay

Based on 183 historical flights. Data through May 2026.

What the data says

Mondays have been rough.

AS 1493 arrived on time 94% of the time on Tuesdays and just 60% on Mondays. That gap is worth planning around.

A bit behind the SAN–ORD route.

AS 1493 arrived on time 73% of the time, versus 79% across the SAN–ORD route.

Lagging the Alaska Airlines network.

AS 1493 arrived on time 73% of the time, versus 80% across the Alaska Airlines network.

Recent months have been rougher.

AS 1493 arrived on time 67% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon60%(30 flights)
  • Tue94%(18 flights)
  • Wed78%(18 flights)
  • Thu74%(27 flights)
  • Fri77%(30 flights)
  • Sat77%(22 flights)
  • Sun65%(31 flights)
On-time trend by month
67%
May

Nov 56% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202556%27
December 202573%26
January 202683%29
February 202689%28
March 202678%23
April 202656%16
May 202667%21
Departures on time
69%
Diverted
1.6%
Flights flown
176
Months covered
8

Same route, other flights

Keep nerding

Based on 183 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.