OnTimeRoutes
B

Southwest Airlines PDX to SMF on-time performance

Southwest Airlines nonstop flights from Portland to Sacramento · Aug 2025 – Jul 2026

On-time arrivals
78%
arrived < 15 min late
Cancelled
0.2%
2 flights
Avg arrival delay
12 min
51 min when late
Rank on route
#3 of 3
route average 82% on time

Key facts

  • Southwest Airlines flights on PDX to SMF arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 0.2% were cancelled, and 6% arrived an hour or more late.
  • That ranks #3 of 3 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (76%).

On-time trend by month

50%75%100%July 2025: 74.0% on time, 0.0% cancelledJul ’25August 2025: 84.1% on time, 0.9% cancelledAug ’25September 2025: 84.8% on time, 0.0% cancelledSep ’25October 2025: 82.1% on time, 0.0% cancelledOct ’25November 2025: 83.0% on time, 0.0% cancelledNov ’25December 2025: 71.7% on time, 0.0% cancelledDec ’25January 2026: 91.0% on time, 0.0% cancelledJan ’26February 2026: 81.4% on time, 1.1% cancelledFeb ’26March 2026: 77.8% on time, 0.0% cancelledMar ’26April 2026: 79.1% on time, 0.0% cancelledApr ’26May 2026: 72.7% on time, 0.0% cancelledMay ’26June 2026: 64.5% on time, 0.0% cancelledJun ’26July 2026: 70.8% 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 aircraft76%
  • Airline (crew, maintenance, cleaning, fueling)18%
  • Air traffic control & airport congestion5%
  • Security1%
  • Extreme weather0%

Other airlines on PDX to SMF

1,212 Southwest Airlines flights tracked on this route; 2 cancelled, 2 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.