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Flight Reliability

AS 410 · Alaska Airlines

Seattle → Chicago (SEA–ORD)99% of its flights flew this route. The rest (SEA–SFO) are included in these numbers.

70
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
9 min
Average arrival delay
0.6%
Cancelled
0 min
Median arrival delay

Based on 358 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AS 410 departing between 6–9 AM arrived on time 83% of the time, versus 61% between 12–3 PM.

Thursdays have been rough.

AS 410 arrived on time 79% of the time on Tuesdays and just 53% on Thursdays. That gap is worth planning around.

Lagging the SEA–ORD route.

AS 410 arrived on time 69% of the time, versus 76% across the SEA–ORD route.

Lagging the Alaska Airlines network.

AS 410 arrived on time 69% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon64%(50 flights)
  • Tue79%(52 flights)
  • Wed78%(51 flights)
  • Thu53%(45 flights)
  • Fri71%(51 flights)
  • Sat69%(52 flights)
  • Sun65%(51 flights)
On-time by departure window
  • 6–9 AM83%(30 flights)
  • 9 AM–12 PM73%(63 flights)
  • 12–3 PM61%(199 flights)
  • 3–6 PM83%(60 flights)
On-time trend by month
84%
May

Jun 47% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%30
July 202520%30
August 202547%30
September 202583%30
October 202571%31
November 202573%26
December 202583%29
January 202669%29
February 202689%27
March 202677%31
April 202686%28
May 202684%31
Departures on time
74%
Diverted
1.1%
Flights flown
352
Months covered
12

Same route, other flights

Keep nerding

Based on 358 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.