Historical on-time performance
Portland to Sacramento
479 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–SMF arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,876 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time83%Medianon timep9035 minCancel0.3%Flights619
- Southwest AirlinesOn-time81%Medianon timep9030 minCancel0.2%Flights1,257
Why flights run late
Delay causes
- Airline26%
- Weather1%
- Air traffic (NAS)7%
- Late aircraft66%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PDX → SMF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 5 min · 1,475 flights
- Middays88% on time · p90 15 min · 1,280 flights
- Afternoons79% on time · p90 30 min · 793 flights
- Evenings75% on time · p90 40 min · 963 flights
- Overnights73% on time · p90 45 min · 908 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 90% on time.
- Tuesdays90% on time · p90 10 min · 776 flights
- Wednesdays87% on time · p90 15 min · 788 flights
- Saturdays86% on time · p90 25 min · 496 flights
- Mondays83% on time · p90 25 min · 862 flights
- Sundays82% on time · p90 30 min · 768 flights
- Thursdays81% on time · p90 30 min · 860 flights
- Fridays77% on time · p90 35 min · 869 flights
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