OnTimeRoutes
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Southwest Airlines DEN to ANC on-time performance

Southwest Airlines nonstop flights from Denver to Anchorage · Aug 2025 – Jul 2026

On-time arrivals
41%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
33 min
54 min when late
Rank on route
#3 of 3
route average 76% on time

Key facts

  • Southwest Airlines flights on DEN to ANC arrived on time 41% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 12% arrived an hour or more late.
  • That ranks #3 of 3 airlines on this route, which averaged 76% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (52%).

On-time trend by month

20%60%100%May 2026: 52.9% on time, 0.0% cancelledMay ’26June 2026: 30.0% on time, 0.0% cancelledJun ’26July 2026: 45.2% 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

  • Late-arriving aircraft52%
  • Airline (crew, maintenance, cleaning, fueling)31%
  • Air traffic control & airport congestion17%
  • Extreme weather0%
  • Security0%

Other airlines on DEN to ANC

78 Southwest Airlines flights tracked on this route; 0 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.