Historical on-time performance
Las Vegas to Portland
762 miData through Dec 2025Source: US DOT · BTS
Flights on LAS–PDX arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 3,140 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time81%Medianon timep9030 minCancel1.0%Flights1,483
- Spirit AirlinesbestOn-time88%Medianon timep9015 minCancel0.4%Flights469
- Southwest AirlinesOn-time76%Medianon timep9050 minCancel0.3%Flights1,188
Why flights run late
Delay causes
- Airline30%
- Weather2%
- Air traffic (NAS)13%
- Late aircraft54%
- 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 LAS → PDX
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 — 89% on time.
- Mornings89% on time · p90 15 min · 2,934 flights
- Middays83% on time · p90 25 min · 2,193 flights
- Afternoons71% on time · p90 50 min · 2,058 flights
- Overnights70% on time · p90 55 min · 2,021 flights
- Evenings69% on time · p90 55 min · 2,050 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 84% on time.
- Saturdays84% on time · p90 25 min · 1,398 flights
- Tuesdays82% on time · p90 30 min · 1,467 flights
- Wednesdays81% on time · p90 30 min · 1,450 flights
- Mondays79% on time · p90 35 min · 1,764 flights
- Sundays72% on time · p90 50 min · 1,705 flights
- Thursdays72% on time · p90 50 min · 1,712 flights
- Fridays72% on time · p90 50 min · 1,760 flights
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