Historical on-time performance
Portland to San Diego
933 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–SAN arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 1,628 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time78%Medianon timep9030 minCancel1.0%Flights1,628
Why flights run late
Delay causes
- Airline33%
- Weather0%
- Air traffic (NAS)35%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PDX → SAN
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 70% to 84% on time.
- Mornings84% on time · p90 20 min · 1,330 flights
- Middays84% on time · p90 25 min · 1,025 flights
- Afternoons83% on time · p90 25 min · 912 flights
- Overnights79% on time · p90 35 min · 838 flights
- Evenings70% on time · p90 40 min · 938 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.
- Saturdays83% on time · p90 25 min · 648 flights
- Tuesdays83% on time · p90 20 min · 655 flights
- Wednesdays82% on time · p90 25 min · 678 flights
- Mondays82% on time · p90 25 min · 756 flights
- Thursdays78% on time · p90 30 min · 751 flights
- Sundays77% on time · p90 35 min · 805 flights
- Fridays76% on time · p90 35 min · 750 flights
Advertisement
Keep exploring