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Flight Reliability

AS 890 · Alaska Airlines

Seattle → Chicago (SEA–ORD)

78
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
8 min
Average arrival delay
0%
Cancelled
3 min
Median arrival delay

Based on 135 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

AS 890 arrived on time 84% of the time on Wednesdays and just 55% on Saturdays. That gap is worth planning around.

A bit behind the SEA–ORD route.

AS 890 arrived on time 70% of the time, versus 76% across the SEA–ORD route.

Lagging the Alaska Airlines network.

AS 890 arrived on time 70% of the time, versus 80% across the Alaska Airlines network.

It basically never cancels.

Out of 135 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon58%(19 flights)
  • Tue68%(19 flights)
  • Wed84%(19 flights)
  • Thu80%(20 flights)
  • Fri68%(19 flights)
  • Sat55%(20 flights)
  • Sun74%(19 flights)
On-time trend by month
76%
Oct

Jun 68% → Oct 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%19
July 202568%31
August 202561%31
September 202576%29
October 202576%25
Departures on time
88%
Diverted
0%
Flights flown
135
Months covered
5

Same route, other flights

Keep nerding

Based on 135 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.