Historical on-time performance
Salt Lake City to Portland
Flights on SLC–PDX arrive on time 87% of the time over the last 12 months.
based on 2,273 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-time88%Medianon timep9015 minCancel0.5%Flights576
- Delta Air LinesOn-time87%Medianon timep9020 minCancel1.1%Flights1,697
Why flights run late
Delay causes
- Airline58%
- Weather3%
- Air traffic (NAS)8%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline90%
- Weather0%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 21 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → PDX
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 10 min · 2,114 flights
- Middays87% on time · p90 20 min · 1,515 flights
- Afternoons86% on time · p90 20 min · 1,466 flights
- Overnights85% on time · p90 20 min · 1,145 flights
- Evenings81% on time · p90 30 min · 884 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 84% to 90% on time.
- Wednesdays90% on time · p90 10 min · 974 flights
- Tuesdays89% on time · p90 15 min · 993 flights
- Saturdays88% on time · p90 15 min · 898 flights
- Mondays87% on time · p90 15 min · 1,072 flights
- Thursdays87% on time · p90 20 min · 1,053 flights
- Sundays84% on time · p90 25 min · 1,061 flights
- Fridays84% on time · p90 25 min · 1,073 flights
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