Historical on-time performance
Los Angeles to Portland
834 miData through May 2026Source: US DOT · BTS
Flights on LAX–PDX arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 4,231 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesbestOn-time89%Medianon timep9015 minCancel1.1%Flights1,942
- Delta Air LinesOn-time86%Medianon timep9025 minCancel0.9%Flights1,691
- SkyWest AirlinesOn-time74%Medianon timep9075 minCancel0.3%Flights598
Why flights run late
Delay causes
- Airline60%
- Weather1%
- Air traffic (NAS)6%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline82%
- Weather16%
- Air traffic (NAS)3%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 38 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 LAX → 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 — 90% on time.
- Mornings90% on time · p90 10 min · 4,189 flights
- Afternoons87% on time · p90 20 min · 2,218 flights
- Middays87% on time · p90 20 min · 2,568 flights
- Evenings84% on time · p90 25 min · 2,664 flights
- Overnights78% on time · p90 45 min · 1,615 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 83% to 89% on time.
- Tuesdays89% on time · p90 15 min · 1,738 flights
- Wednesdays89% on time · p90 15 min · 1,752 flights
- Mondays87% on time · p90 20 min · 2,044 flights
- Saturdays86% on time · p90 20 min · 1,647 flights
- Thursdays86% on time · p90 20 min · 2,045 flights
- Sundays84% on time · p90 30 min · 1,992 flights
- Fridays83% on time · p90 30 min · 2,036 flights
Keep exploring