OnTimeRoutes
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Alaska Airlines JNU to SEA on-time performance

Alaska Airlines nonstop flights from Juneau to Seattle · Aug 2025 – Jul 2026

On-time arrivals
80%
arrived < 15 min late
Cancelled
1.9%
27 flights
Avg arrival delay
14 min
61 min when late
Rank on route
#2 of 2
route average 81% on time

Key facts

  • Alaska Airlines flights on JNU to SEA arrived on time 80% of the time in Aug 2025 – Jul 2026.
  • 1.9% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (40%).

On-time trend by month

50%75%100%July 2025: 76.4% on time, 1.6% cancelledJul ’25August 2025: 72.7% on time, 1.1% cancelledAug ’25September 2025: 77.4% on time, 2.7% cancelledSep ’25October 2025: 79.4% on time, 2.0% cancelledOct ’25November 2025: 87.4% on time, 1.1% cancelledNov ’25December 2025: 69.5% on time, 7.9% cancelledDec ’25January 2026: 78.2% on time, 5.4% cancelledJan ’26February 2026: 82.9% on time, 2.4% cancelledFeb ’26March 2026: 69.2% on time, 2.2% cancelledMar ’26April 2026: 91.1% on time, 0.0% cancelledApr ’26May 2026: 83.8% on time, 0.0% cancelledMay ’26June 2026: 84.4% on time, 1.1% cancelledJun ’26July 2026: 80.0% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)40%
  • Late-arriving aircraft33%
  • Air traffic control & airport congestion20%
  • Extreme weather6%
  • Security1%

Other airlines on JNU to SEA

1,449 Alaska Airlines flights tracked on this route; 27 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.