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Flight Reliability

AS 71 · Alaska Airlines

Seattle → Juneau (SEA–JNU)96% of its flights flew this route. The rest (ADK–ANC, JNU–ANC) are included in these numbers.

67
Usually Fine
WanderNerd Reliability Score
65%
Arrive within 15 minutes
10 min
Average arrival delay
1.0%
Cancelled
4 min
Median arrival delay

Based on 300 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

AS 71 departing between 9 AM–12 PM arrived on time 68% of the time, versus 20% between 9 PM–12 AM.

Saturdays have been rough.

AS 71 arrived on time 78% of the time on Tuesdays and just 55% on Saturdays. That gap is worth planning around.

Lagging the SEA–JNU route.

AS 71 arrived on time 65% of the time, versus 76% across the SEA–JNU route.

Well behind the Alaska Airlines network.

AS 71 arrived on time 65% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon63%(41 flights)
  • Tue78%(40 flights)
  • Wed75%(47 flights)
  • Thu58%(40 flights)
  • Fri60%(40 flights)
  • Sat55%(47 flights)
  • Sun63%(41 flights)
On-time by departure window
  • 9 AM–12 PM68%(246 flights)
  • 12–3 PM—(7 flights)
  • 3–6 PM—(6 flights)
  • 6–9 PM41%(27 flights)
  • 9 PM–12 AM20%(10 flights)
On-time trend by month
92%
Apr

Jun 35% → Apr 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202535%29
July 202548%31
August 202568%31
September 202576%29
October 202574%31
November 202583%29
December 202531%29
January 202664%28
February 202673%11
March 202680%15
April 202692%24
Departures on time
67%
Diverted
0.3%
Flights flown
296
Months covered
12

Same route, other flights

Keep nerding

Based on 300 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.